Search results for “principle

About 41 results in articles

Open Access Pub publishes peer-reviewed, free-to-read open-access articles. Showing articles matching principle — open any to read the full text, or download the PDF or XML.

41 articles

Principles and Constants of the Golden Proportion as a Criterion in Donosological Diagnostics of the Functional States of The Body and in the Assessment of the Probability of their Changes

Jan 2022 DOI 10.14302/issn.2578-8590.ipj-21-4026
Karabayev M.Corresponding author Fergana Medical Institute of Public Health, Uzbekistan.

A theoretical paper proposes applications of golden proportion principles to physiological diagnostics. It outlines proposed metrics and discusses validation needs and limitations.

To What Extent is it Possible to Respect the Principle of Autonomy in Pandemic Times? A New Approach to Bioethical Principles

Jun 2021 DOI 10.14302/issn.2641-4538.jphi-21-3861
Dieb Miziara IvanCorresponding author Associate Professor – Head of Department – Department of Legal Medicine, Ethics and Social Medicine São Paulo University School of Medicine (São Paulo – Brazil) – Orcid Id: 0000-0001-7180-8873.

Based on two fictitious cases of disregard for the rules to prevent the spread of Sars-Cov-2 in which individuals claim that their autonomy has been disrespected, in Brazil, the authors ask to what extent individual autonomy must be strictly respected and propose a new approach to the bioethics principles, so that they are applied with a view to public health and the common good.

Food Pyramid - The Principles of a Balanced Diet

Feb 2020 DOI 10.14302/issn.2379-7835.ijn-20-3199
BUTNARIU MonicaCorresponding author Banat’s University of Agricultural Sciences and Veterinary Medicine “King Michael I of Romania” from Timisoara, Timis, Romania

The need to understand the relation of man to food, determines the existence of appropriate behavior as well as an attitude in accordance with the modalities that determine human development and evolution, under this structural aspect. A proper diet is the one that provides the amount of nutrients corresponding to personal needs. The food pyramid is the scheme we refer to most in order to know the proportions of foods recommended for consumption. It is a pyramid divided into "layers", each corresponding to a category of foods and the respective quantity.

Big Data Research Open Access

5S Dashboard Design Principles for Self-Service Business Intelligence Tool Users

Nov 2018 DOI 10.14302/issn.2768-0207.jbr-18-2175
Lu Tsung-HsuehCorresponding author NCKU Research Center for Health Data and Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan.

Non–information technology (IT) professionals and nonexpert casual users are increasingly adopting self-service business intelligence (SSBI) tools (such as Tableau, Qlik, and Power BI) to create data visualization dashboards. This study identified the most relevant dashboard design principles for SSBI tool users. The research approach included organizing a focus group in which most of the participants were non-IT professionals in health care, extracting recommended principles from the literature, applying these recommended principles by using data on quality of diabetes care to design relevant dashboards, and proposing the following 5S dashboard design principle framework: 1) seeing both the forest and trees, 2) simplicity through self-selection, 3) simplicity through significance, 4) simplicity through synthesis, and 5) storytelling. The third and fourth principles are novel and provide solutions to decision-making problems (such as conflicting results from excessive and discordant indicators) encountered by health care professional in the public sector as well as in other domains. The 5S dashboard design principles are easily memorized and practical and thus enable non-IT professionals and nonexpert casual users to design insightful dashboards efficiently by using SSBI tools.  

Obstructive Sleep Apnea Treatment with Epap Nasal Devices: Physiological Principles and Limitations

Jan 2017 DOI 10.14302/issn.2574-4518.jsdr-16-1333
Hakim T.S.Corresponding author Sleep Apnea Treatment Unit, Phoenix, AZ and University of South Florida, Department of Anesthesiology, Tampa, FL.

Expiratory Positive airway pressure (EPAP) devices such as prevent have been used for treatment of obstructive sleep apnea without discussing their limitations. In this short review we discuss the physiological limitations of EPAP devices during inspiration and during expiration. During spontaneous breathing, when EPAP is excessive, the patient would have difficulty breathing in because lung compliance decreases at higher volumes. Furthermore excessive EPAP could lead to progressive trapping of air in the lungs. An ideal EPAP device should allow the patient to adjust the resistance to a comfortable level that would provide EPAP without a progressive buildup in pressure, without compromising tidal volume, without causing CO2 retention, and without disturbing sleep. The use of EPAP devices with adjustable resistance is essential for best results in treatment of obstructive sleep apnea and snoring.

Perceptions and Lived Realities of Women’s Engagement in Environmental Conservation in Patriarchal Communities of Northern Uganda: A Qualitative Inquiry

May 2026 DOI 10.14302/issn.2693-1176.ijgh-26-6165
Christine Ruth PiloyaCorresponding author

Background Women’s participation in environmental conservation within patriarchal societies is a critical factor for achieving sustainable development and improved community outcomes. Despite this importance, limited research has examined women’s perceptions of their roles and contributions to environmental conservation. The current study aimed to (1) explore women’s perceptions of their roles in environmental conservation within patriarchal structures, and (2) to document the effectiveness of strategies enhancing their participation. Methods This study followed a phenomenological design, using thematic data analysis. Information was gathered through semistructured interviews, focus group discussions (FGDs), and key informant interviews with technocrats, civil servants, local leaders, and NGO staff. The sample size of the study was 30 participants, obtained using the point of saturation principle. The focus group consisted of 24 participants and 06 Key Informants. The study tools were pretested with a small group before the main fieldwork. Participants were selected using purposive sampling. The size of the sample was guided by data saturation. Results The findings show that although women’s representation in local councils and environmental committees has grown due to the 30% quota requirement, their influence remains constrained by systemic barriers. Political interference undermines technical teams’ conservation efforts, while widespread community ignorance of environmental laws limits compliance. Weak enforcement and corruption, with leaders themselves implicated in destructive practices, further erode progress. Critically, inadequate financing such as subcounties allocating only 600,000 shillings for sensitization, leaves many activities unimplemented, forcing reliance on development partners. Conclusion The study concludes that sustainable environmental stewardship requires not only legal reforms and institutional accountability but also adequate financing and communitydriven strategies that amplify women’s voices and foster collective responsibility.

Efficacy and Safety of Pulsed Magnetic Therapy in Sleep related Disorders: A Remote, Randomized, Double-Blind, Placebo-Controlled Trial

Mar 2026 DOI 10.14302/issn.2574-4518.jsdr-26-6010
Marmann PeterCorresponding author

Background/Aim Sleep disturbances are common and are associated with impaired daytime functioning, reduced quality of life, and increased health risks. Non-pharmacological neuromodulatory interventions have gained interest as alternatives to hypnotic medication. Pulsed electromagnetic field (PEMF) therapy has been proposed as a non-invasive approach to improve sleep quality and recovery, but evidence from large, well-controlled trials remains limited. The objective of this study was to evaluate the efficacy and safety of pulsed magnetic field therapy (PMT) on sleep quality, sleep-related symptoms, daytime functioning, and well-being in adults with heterogeneous sleep complaints.  Materials and Methods In this remote, randomized, double-blind, placebo-controlled trial, 217 adults reporting non-restorative sleep, difficulties initiating sleep, or frequent nocturnal awakenings were assigned to active PMT using a PEMF device (Night Harmony Female/Male protocol) or a sham application for three weeks. Primary outcomes were changes in the Pittsburgh Sleep Quality Index (PSQI) global score and self-rated sleep satisfaction, restfulness, and sleep initiation difficulties. Secondary outcomes included sleep diary measures, daytime functioning, well-being (WHO-5), symptom burden (MYMOP), and daytime sleepiness (Epworth Sleepiness Scale). Analyses followed the intention-to-treat principle using ANCOVA with baseline values of the respective parameter as covariate.  Results Both groups showed significant improvements over time in global sleep quality and most secondary outcomes (p < 0.001). Between-group differences in PSQI global score were not significant (p = 0.314). However, active PMT resulted in significantly greater improvements in subjective sleep satisfaction (p = 0.02) and restfulness (p = 0.02), particularly among participants with moderate to severe baseline sleep disturbances (p < 0.001 for both). Sleep continuity measures improved similarly in both groups. No serious adverse events were reported.  Conclusions PMT produced modest but significant improvements in subjective restorative aspects of sleep beyond placebo effects and was well tolerated. Further studies using objective sleep measures and longer follow-up are warranted.

The Energy–Matter–Behavioral Model of Mental Health Hygiene: A Systems-Based Framework for Sustainable Well-Being

Dec 2025 DOI 10.14302/issn.2474-9273.jbtm-25-5603
Clark MarkCorresponding author

The Energy–Matter–Behavioral (EMB) model offers a systems-based lens for understanding and maintaining mental health hygiene. This framework integrates stress reduction, biological resilience, and behavioral reinforcement into a coherent triad, addressing not only symptoms but underlying energetic and material dynamics. By aligning practices such as exercise, meditation, social connection, sleep, and diet with EMB principles, this model presents a transdisciplinary, evidence-informed approach to mental health in an overstimulated world.

Perceived Physical Progress and Mental Improvement Among Midlife Women Practicing the 3D Movement Method: A Brief Report from a Cross-Sectional Survey

Dec 2025 DOI 10.14302/issn.2694-2283.jsem-25-5827
Manaenkova ZarinaCorresponding author

Background Mind–body exercises are frequently used to support well-being during the menopausal transition, but perceived physical and psychological outcomes associated with practices such as the 3D Movement Method have not been quantitatively assessed. Objective To examine associations between characteristics of the 3D Movement Method and women’s self-reported physical and mental improvement during the menopausal transition. Methods Cross-sectional survey data from 330 women aged ≥ 35 years were analyzed using general linear models. Perceived physical progress and mental improvement were each assessed using single-item, 15-point scales. Independent variables included practice frequency, duration of experience, explanation clarity, satisfaction, baseline health status (SF-36 Physical and Mental Component Summary scores), age, and menopausal status. Results The model for physical progress was significant, F(16, 144) = 6.26, p < .001, R² = .41. Greater practice frequency, longer experience, clearer instructional explanations, and higher satisfaction were each independently associated with higher perceived physical progress. The mental improvement model was also significant, F(16, 96) = 2.25, p = .008, R² = .27, identifying satisfaction as the sole significant predictor. Baseline health, age, and menopausal status did not predict outcomes in either model. Conclusions Perceived physical progress was shaped by structured engagement parameters consistent with deliberate-practice principles, whereas perceived mental improvement was primarily linked to subjective satisfaction, a pattern compatible with motivational accounts of engagement. The 3D Movement Method may support women’s health across the menopausal transition when designed to optimize clarity, engagement, and experiential quality.

How to Become a Psychoanalyst: A Guide for Social Workers

Nov 2025 DOI 10.14302/issn.2574-612X.ijpr-25-5774
A. Thyer BruceCorresponding author

Social work has its roots in the efforts of early twentieth-century charity organizations to reduce human suffering. This movement among charity workers of the era was founded in the search for theoretical knowledge that would illuminate effective treatment options for social ills and ultimately transform the provision of charity into social work. Coinciding with the birth of social work was the development of psychoanalysis (PA) as a tool for theorizing and treating mental illness. For many decades training in PA theory was common within social work graduate programs and many clinical social workers practice today psychotherapy informed by PA principles. However, clinical social workers were long excluded from enrolling in and graduating from psychoanalytic training institutes, a requirement for being able to say that one is a psychoanalyst and provides psychoanalysis. In 1985, a legal ruling asserted that psychologists and other qualified mental health professionals could not be excluded from enrollment in PA training programs. Since that watershed decision, although many social workers have gone on to enroll and graduate as psychoanalysts, the process whereby one can pursue this training path is unfamiliar to most social workers. We describe the current PA training landscape and describe the process on how a LCSW can become a legitimate psychoanalyst.

Farming Open Access

Application of Permaculture Practices to Improve Sustainable Agriculture in the Maltese Islands

Sep 2023 DOI 10.14302/issn.3070-2232.jf-23-4696
Baron ByronCorresponding author

Small island states, such as Malta face numerous, unique challenges in relation to agricultural sustainability, with solutions amenable to larger states being unfit given the particular characteristics of the island. These include the poor soil conditions, the limited water resources, the aging farmer population, farming being mainly part-time, and most farmers having no formal training. Currently farmers practice intensive agriculture to achieve higher crop productivity at lower production costs by relying heavily on agri-chemicals and over-extracting groundwater. This destroys the Maltese natural environment and urges for the development and implementation of sustainable agriculture practices, whereby traditional farming is supplemented with sustainable alternatives such that local agriculture remains productive in the long-term while safeguarding the local environment. Here we outline some of the critical issues that urgently need to be addressed and potential ways forward in relation to soil, water and biodiversity, implementing permaculture principles in small-scale, practical actions in order to improve the sustainability of local agricultural through a combination of scientific evidence, agricultural technology and traditional practices.

Biomaterials Open Access

The application of different orientation of orthotropic composite beam

Mar 2023
Abdellatif ElaakiliCorresponding author

In the present document, the dynamic analysis of isotropic materials applied to the laminated composite beam has been studied to improve the simplification of the homogenization process of heterogeneous composite materials.12 This study is based on the conventional stratified theory of Von Karman's formulation and the kinetic energy of Euler Bernoulli developed through displacement relationships. The model used in this study to explain the problem of non-linear geometry in the free vibration applied of laminated beam is based on the Hamilton's principle for solving the motion equation and determining the frequency of the reaction of the rolled beam. The numerical of the symmetric an asymmetric material gives a good idea of the behaviour of the orthotropic materials, and to minimize the problem of many areas used these materials such as: dental medicine, aeronautical, aerospace, because they have a good strength, high rigidity.23 The comparison between the different lay up may give greater importance to this study and open the search to simplify the problem of non linear geometry and give a good result about the older other published. For instance the application of medicine,the researcher has to decode the compatibility of the human body with new materials,and to minimize the problem of deterioration,The comparison with different lay up give more interesting by the mechanical engineering and the researcher's to give the solution of no linear problem and optimize the composite material’s to adaptation with problem study.4

Prevention and Safety Training to Improve Community Health

Mar 2023 DOI 10.14302/issn.2690-0904.ijoe-21-3884
Keshaverz VajiheCorresponding author

Background and Purpose Public health problems are caused by the emergence of environmental pollution and infectious diseases, which have caused concern around the world. The public health threat affects the relationship between people. Population growth and associated pressures increase difficulties associated with effective means of maintaining public health. The diseases transmitted from human and livestock communication, water pollution, air pollution, and environmental pollutants urge us to find new solutions to address these problems. Understanding the environmental and environmental health is a prerequisite for protecting public health. In Iran, like other countries in the world, the issue of environmental protection and its compliance with the first program of economic, social and cultural development of the Islamic Republic has begun and expanded in the future. In this regard, new perspectives are being introduced that will bring about dramatic changes at various levels of planning, processes and specialized sectors such as civil, industrial and educational sectors. The training of engineers in this regard can play a very important role in refining the attitudes of young engineers and using these bases in their specialized activities. One of the important tasks of universities is to provide a suitable platform for such training. In this regard, it is essential that the major industrial universities of the country develop various programs in this field. Materials and Methods The present study is a review of the type of validity that is performed through search of authoritative scientific databases such as PubMed and Scopus, Google scholar, PubMed using the key words of building safety and health, HSE, and prevention methods are the latest information. Results Implementing the principles of HSE in various construction, industrial and other projects requires time, because any change that is considered in the system requires a change of attitude, which in turn requires time to adapt and adapt to the new conditions. The conditions for the projects in this research are their current conditions, and the next research, after a while, can determine the percentage of project progress in terms of HSE. Conclusion In order to comply with the principle of HSE cases, there is a need for training. These trainings should be executed at different levels and levels of contracting and monitoring so that the level of awareness of the risks involved in the development of civil operations between the personnel reaches a common frontier.

The Third Survey on the Activity of Human Milk Banks in Italy and the Impact of the COVID-19 Pandemic

Oct 2022 DOI 10.14302/issn.2379-7835.ijn-22-4316
E. Moro GuidoCorresponding author Board of Directors of AIBLUD (Italian Association of Donor Human Milk Banks), Milan, Italy

Background Growing scientific evidence points to the benefits of human milk for the growth and development of a newborn. Compelling evidence has confirmed the benefits not only for full-term babies but also for preterm infants. Objective This survey was planned by the Italian Ministry of Health together with the Italian Association of Donor Human Milk Banks (AIBLUD) and aimed to evaluate the activity of human milk banks (HMBs) in Italy in the period 2018-2020, analyzing several items and the impact of the COVID-19 pandemic. Methods Following the two surveys performed in 2012 and 2016, a third survey was planned in the year 2021 to evaluate possible changes in the activity of the Human Milk Banks (HMBs) operating in Italy. A questionnaire was sent to all the 41 HMBs officially operating in Italy in the year 2021 with the purpose to obtain national data concerning milk banks activity, number of donors, volume of human milk collected, and other information related to the years 2018, 2019 and 2020. Additional questions related to the impact of the COVID-19 on the activity of HMBs in the year 2020 were included. Therefore the questionnaire proposed in this third survey collected fundamental data on the donation of human milk with the implications related to the COVID-19 pandemic. Results 90% of the banks (37/41) responded to this survey. The collected data confirm the results of the second survey (2016), with a high level of adherence to the Ministerial Guidelines and the AIBLUD recommendations. The application of the principles of the HACCP system continues to improve (89%), while in the last three years there has been a sharp decline in the home collection service for donor human milk (68%). This decline is mainly linked to the interruption of this service due to the limitations imposed by the pandemic. In 2020 (the year of the COVID-19 pandemic) there was a clear reduction in the number of donors with a return to the values ​​of 2016. The volumes of milk collected, and the average duration of donation, however, remained high. The reasons linked to the reduction in the number of donors are described. Conclusion This survey underlines the high quality standard of Italian HMBs and the usefulness of this service for the national health policy. Despite the difficulties due to the COVID-19 pandemic, the Italian HMBs have maintained an efficient and safe service and have guaranteed the collection of satisfactory volumes of donor milk. Lack of information represents the most important barrier to the donation of human milk.

Thin Film Deposition and Characterization Techniques

Apr 2022 DOI 10.14302/issn.2831-8846.j3dpa-22-4066
Geremew TemesgenCorresponding author Debark University, Department of physics, Debark, Ethiopia

Thin films are everywhere in the modern world, with many of the technologies we depend upon in daily life being, in turn, dependent upon thin film technology. Chemical bath deposition includes principles of chemical bath deposition (CBD) and concept of solubility product, nucleation and film growth, thin film deposition mechanism in chemical bath deposition. The non-metallic ion source (anions) and metal ion source (cations) then react to form the compound. The nucleation process plays an important role in determining the crystallinity and microstructure of the resultant film. From the discussion of deposition techniques which are physical and chemical deposition methods. Physical deposition techniques contains sputtering deposition, electron beam evaporation and physical vapour deposition (PVD) process have been known for over 100 years and also fabrication films on the substrate, as well as the increasement of the pressure in the chamber due to operation of the sources indicates directly that gases or vapors are desorbed. Chemical deposition process is economically effective and has been industrially exploited to large scale. It can be summarized that thin film characterization techniques include X-ray diffraction (XRD), UV-Vis spectrophotometer, scanning electron microscopy, energy dispersive x-ray diffraction, transmission electron microscopy (TEM). X-rays diffraction (XRD) is a rapid and a powerful technique used to study the phase of a crystalline material, information on unit cell lattice parameters, crystal structure, crystal orientation and crystalline size.

Six Fractal Codes of Biological Life Unifying ATOMS, WAVES and INFORMATION: Perspectives in Exobiology, Cancers Basic Research and Artificial Intelligence Biomimetism Decisions Making

Oct 2021 DOI 10.14302/issn.2641-5526.jmid-21-3900
Perez Jean-claudeCorresponding author Phd Maths Computer Science Bordeaux University, RETIRED Interdisciplinary Researcher (IBM Emeritus, IBM European Research Center On Artificial Intelligence Montpellier) Bordeaux Metropole, France.

In this theoretical discovery of a law of Life, there is MATHEMATICS (Geometry, Bits and Numbers) that UNIFY 3 universes as complementary as ATOMIC MASS, WAVES, and INFORMATION (DNA, RNA and Amino Acids). The discovery of a simple numerical formula for the projection of all the atomic mass of life-sustaining CONHSP bioatoms leads to the emergence of a set of Nested CODES unifying all the biological, genetic and genomic components by unifying them from bioatoms up to 'to whole genomes. In particular, we demonstrate the existence of a digital meta-code common to the three languages ​​of biology that are RNA, DNA and amino acid sequences. Through this meta-code, genomic and proteomic images appear almost analogous and correlated. The analysis of the textures of these images then reveals a binary code as well as an undulatory code whose analysis on the human genome makes it possible to predict the alternating bands constituting the cariotypes of the chromosomes. The application of these codes to perspectives in astrobiology, cancer, and specifically in INFORMATION THEORY with the emergence of binary codes and regions of local stability (voting process), whose fractal nature we demonstrate, is illustrated. PREFACE by Professor Luc Montagnier Addendum by Robert Friedman M.D After the discovery of the DNA double helix structure allowing both the stable storage of genetic information and its transfer through messenger RNA to protein synthesis organelles themselves structured by RNA most abundant in cells, the ribosomal. This wonder of nature exists in ALL living beings from the virus to humans and is based on two codes, the linear sequence of nucleotides and that derived from codons where three nucleotides allow with a certain flexibility - synonymous codons - the choice in the twenty amino acids. But we are missing a third CODE the one governing at multicellular beings from the rotifer to human, the stabilized modulation of gene expression in a nutshell the differentiation of cells from the single cell of the fertilized egg. It is logical to think that this program which begins as soon as fertilization is written in the DNA. We are also prone to associate it with non-coding DNA sequences although they control gene expression. I introduce here the notion developed by Jean-Claude Pérez of mathematical harmony, a higher order present in all living beings and whose existence it finds in genomes, including those of viruses. Thus the natural evolution of variants of the genome of coronavirus Covid 19 tends towards increasingly long Fibonacci series. It remains to determine the Who, the How and the Why of such developments. I will bet with my mathematician colleague that waves and fractals play a role. Luc Montagnier ADDENDUM Jean-claude has given scientists a strong new direction for research. He has identified a unified field of science guided by the Golden Ratio and Fibonacci Sequence. By identifying an overall guiding principle that makes possible fractal-like nesting at all levels of biological manifestation, future researchers can begin with the "whole" instead of the "parts". If we know that complex systems are organized at varying levels by the Golden Ratio and Fibonacci Sequence, we can look for those universal patterns first and then fill in the gaps with small details to complete the picture. It's like having an overall view of a crossword puzzle before beginning to assemble the individual pieces. Without an overarching vision and guiding principle, completing the puzzle is infinitely more difficult. Once scientists and researchers realize and begin using this "SECRET IN HIDDEN IN PLAIN SIGHT," their discoveries will be orders of magnitude more fruitful.  Robert Friedman M.D

The Evolution of the Enzyme Immunoassay/Enzyme-Linked Immunosorbent Assay

Aug 2021 DOI 10.14302/issn.2326-0793.jpgr-21-3917
Tarassishin LeonidCorresponding author Department of Pathology, Albert Einstein College of Medicine, United States.

50 years ago the Enzyme Immunoassay Enzyme-Linked Immunosorbent Assay, mostly known as ELISA was developed. This is a powerful but simple method that is very widely used in the diagnostic practice, as well as in biomedical research. During this time a number of ELISA modification were developed that significantly increased its properties, especially the senstivity, such as avidin-biotin assay, immuno-PCR, nano-ELISA and finally, the digital ELISA. This short review describes the principles of ELISA and the evolution from a conventional assay to the modern ultra-sensitive method. Most of the immunological methods have two components: antigen and antibody. The high specificity of their interaction gives a possibility to detect one of them if other one is included in the reaction as a specific partner. The simplest method for antigen detection in the presence of the antibody is immune diffusion (radial immune diffusion in that case), which practically the formation of precipitate of the “antigen-antibody” complex, when the target antigen diffuses from well into agarose containing the specific antibody. Unfortunately, this assay, as well as other traditional methods, like hemagglutination or complement fixation, have a low sensitivity and are unwieldy.

Human Psychology Open Access

Would John Stuart Mill Support or Reject Net Neutrality?

Jul 2021 DOI 10.14302/issn.2644-1101.jhp-21-3889
Donald L. BureshCorresponding author

In this article, the philosophy of John Stuart Mill is applied to the notion of net neutrality. It is argued that Mill would support net neutrality, provided it does not come in conflict with the principles of capitalism. The essay posits that Mill would contend that net neutrality would be supported if it promoted the greatest good for the greatest number of people. On the other hand, Mill would be against net neutrality if it harmed others, particularly those individuals without market power. The article observed that Mill believed that the purpose of government is to ensure the welfare of the people. In general, the paper concludes that Mill would probably have supported net neutrality.

GATES/GEB as the Best Thermodynamic Approach to Electrolytic Redox Systems - a Review

Oct 2020 DOI 10.14302/issn.2377-2549.jndc-20-3583
Michałowski TadeuszCorresponding author

The Generalized Approach To Electrolytic Systems (GATES) provides the best possible thermodynamic formulation of redox and non-redox, equilibrium and metastable, mono-, two- and three-phase systems, with all attainable/pre-selected physicochemical knowledge involved, without any simplifying assumptions made for calculation purposes, where different species may occur in batch or dynamic systems, of any degree of complexity. The Generalized Electron Balance (GEB) is the key concept completing the set of algebraic balances referred to redox systems, described according to GATES/GEB ⊂ GATES principles. The GEB, considered as the law of Nature, is fully compatible with charge and concentration balances, and relations for the corresponding equilibrium constants. Within GATES, the electrolytic systems are resolvable with use of MATLAB, or other iterative computer programs, if all necessary physicochemical knowledge is attainable.

Lipid Assemblies as Tools for Drug Delivery

Sep 2020 DOI 10.14302/issn.2835-513X.ijl-20-3470
Gupta AnjuCorresponding author Department of Mechanical, Industrial and Manufacturing Engineering, University of Toledo, Toledo, OH 43614, USA

This review discusses lipid assemblies—from liposomes to solid lipid nanoparticles—as platforms for drug delivery. It covers design principles, targeting strategies, and manufacturing considerations.

Covid-19 Pandemic: Mental Dynamics of Quarantine and Social Isolation

Aug 2020 DOI 10.14302/issn.2474-9273.jbtm-20-3497
Patel JainishCorresponding author Indira Gandhi National Open University, Regional Center, Surat, Gujarat, India

This paper explores the two major preventive concepts of the unpredictable life-threatening viral infection caused by Coronavirus that is ravaging the entire world from the beginning of the year 2020, as it pertains to mental health. Through scientific consultations, the expectation is that effective vaccine for the Coronavirus disease-2019 (COVID-19) may not come into the market this year. Two (among others) preventive measures, namely Social Distancing and Quarantine are suggested by the World Health Organization (WHO). Using the principle of explorative research, this study established the flipside of quarantine and social distancing from the metal health perspective. It was discovered that there is a relationship between a long period of self-isolation and a high probability of concerned persons having anxiety, stress, and depression, which gradually leads to mental and emotional health issues. Consequently, mental health affects the overall health and affects how we handle different situations during the Covid-19 pandemic. By considering this important matter, this article recommended different ways to improve mental health during the pandemic in the quest to keep oneself away from psychological issues arising due to the Covid-19 situation.

Presentation of Neutralizing Antibodies in Single- or Pooled-Convalescent Immune Plasma from Donors to Prevent the Current SARS-CoV-2 Pandemic

Jul 2020 DOI 10.14302/issn.2692-1537.ijcv-20-3459
Ozcelik FatihCorresponding author University of Health Sciences, Sultan 2. Abdulhamid Han Training and Research Hospital, Department of Medical Biochemistry, Istanbul, Turkey

As there is no specific treatment yet, the fight against the COVID-19 pandemic is being carried out with great difficulty today. The use of immune plasma is seen as a promising option since there is expectation that it will reduce mortality, as in influenza pandemics experienced in 1918 and 2009. However, the safety and effectiveness of this treatment option against SARS-CoV-2 viruses are not known for certain. In addition, the optimal obtaining methods and protection time of neutralizing antibodies to be used to provide passive immunization are not fully known. Therefore, it would be very useful to investigate the most effective neutralizing antibody collection methods without disrupting the overall structure and effectiveness of the antibodies subject to the use of the convalescent immune plasma. For this purpose, we found it appropriate to prepare a broad review on the structure and properties of antibodies, as well as the principles and storage conditions of antibodies to be used in passive immunization.

Reasons for Increased Social Distancing and Surface Disinfection from a Physics Perspective

Apr 2020 DOI 10.14302/issn.2691-8862.jvat-20-3321
Tang Wen-XinCorresponding author College of materials science and engineering, Chongqing University, Chongqing 400044, China

This viewpoint uses physical principles to explain mechanisms behind social distancing and surface disinfection. It links particle dynamics and contact transfer to practical guidance and risk communication during respiratory epidemics.

Formulation of Isohydricity Conditions in Acid-Base systems - A Review

Mar 2020 DOI 10.14302/issn.2377-2549.jndc-20-3219
Michałowski TadeuszCorresponding author

The isohydricity conditions are formulated for D+T systems composed of titrand D and titrant T, mixed according to titrimetric mode; only acid-base equilibria are involved there. The original method of dissociation constants determination, based on the isohydricity principle, is presented and confirmed experimentally. The pH titrations in the system of isohydric solutions are also put in context with conductometric titrations.

A New Dietary Therapy for Chronic Renal Failure: Intestinal Dialysis Technology

Jan 2020
Jalal Al Mosawi AamirCorresponding author Children Teaching Hospital, Baghdad Medical City, Bab Al Muadham, Baghdad, Iraq

A new dietary approach used to lower urea levels in chronic renal failure, and thus simulating dialysis has been recently described. This approach has been increasingly called intestinal or dietary dialysis. The aim of this paper is to describe the emerging evidence, principles, and concepts related to intestinal dialysis.

Maternal Indigenous and Artisanal Coastal Nutrition, the SDG Imperative: A Suggested Renaissance of Ethics for Research and Tertiary Education in the Anthropocene Era

Jul 2019 DOI 10.14302/issn.2379-7835.ijn-19-2774
D. Watts PaulCorresponding author

Maternal nutrition is at the core of any principle-centered projection of Sustainable Development Goals. Without the developmental health of newborns – there is no quality future. Specifically, there are situations all around the globe where Indigenous and Artisanal coastal people suffer from maternal malnutrition inadvertently limiting future potentials in many locations that will be most challenged by climate change. Results from research with Artisanal Fisherfolk in the Philippines and analysis of harvest by the Canadian Inuit people are discussed in terms of the ethics of setting national as well as global education and research priorities.

Hydrodynamic Equilibrium of Teeth Sustentation

Jan 2019 DOI 10.14302/issn.2473-1005.jdoi-19-2577
Ricardo Kina JoséCorresponding author DDS, MSc, PhD. Retired Associate Professor, Department of Surgery and Integrated Clinic, Araçatuba School of Dentistry, Sao Paulo State University – UNESP. Rua José Bonifácio, 1193. Zip code: 16015-050, Araçatuba, Brazil.

The article discusses biomechanical principles underlying tooth support and hydrodynamic equilibrium. It considers periodontal ligament behavior, load distribution, and fluid dynamics, linking basic science concepts to clinical implications.

Organ Transplantation Open Access

Should All Living Kidney Donors Receive Donor Health Insurance? - Ethical Guidance for Evaluating Policies and Actions that Provide Financial Benefits to Living Organ Donors

Dec 2018 DOI 10.14302/issn.2576-9359.jot-18-2388
M. Flechner StuartCorresponding author Glickman Urologic and Kidney Institute, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio 44195

This review article provides ethical guidance for determining which kinds of financial benefits provided to living organ donors are ethically appropriate. It does so by way of ethical analysis of a policy case study: the National Kidney Registry (NKR) has implemented a donor insurance program to all its living donors. Is such a policy ethically supportable, or is it an unethical practice? The article proceeds as follows. First, a framework for grounding the ethical commitments of transplant programs is defended. It is argued that this framework can be accepted by all who work in transplant medicine, regardless of differences in ethical theory preference or background. Second, from this framework two ethical principles are formulated. (1) Living donors should, as far as possible, not be worse off for donating. (2) Disincentives towards donation should be removed as much as possible. Third, issues with unethical incentives are explored: undue inducement, commodification of the body, potential decreased organ donation rates, and potential exploitation of vulnerable populations. Lastly, these ethical considerations are applied to the policy change at the NKR, showing that the NKR policy change appears to be ethically supportable. Financial benefits provided to donors are ethically sound if they are in keeping with principles (1) and (2), and do not cause undue inducement, commodification, decreased organ donation, or exploitation. It is ethically appropriate for transplant programs to institute as well as study such programs with the goal of serving the welfare and interests of patients, donors, and the general public.

Agronomy Research Open Access

Towards Implementing the Integrated Technology of Precision Agriculture in Sudan

Oct 2018 DOI 10.14302/issn.2639-3166.jar-18-2331
Haroun Mohamed Adam AbubakerCorresponding author Department of Crop Science, College of Agriculture, University of Bahri, Sudan.

This study reviews the agricultural development perspective in the light of a rapid space technology development. In other words, precision agriculture as part of geoinformatics. The aim is to quantify whether the adopted technology can improve the efficiency of agricultural fields management and production to attain food security. Therefore, views of targeted groups from different States of Sudan were investigated, using stratified sampling method. Where quantitative statistics (descriptive/inductive techniques) was applied. About 800 questionnaires were distributed. The outcomes of data analysis reflected that the majority of interviewed groups 357 (82.1%) do not know the principles and application of integrated technology in the field of agricultural management. 85.3% of respondents know nothing about computer program related to precision agriculture. The majority of the respondents (84.6 %), did not get courses on precision agriculture during the under graduate study. The result also revealed that only 11.8% of the respondents use modern techniques in land preparation, 16.1 % in soil analysis, 12.5 % in the field of seed technology, and 11.4% in crop harvesting. However, 53.9% of the respondents reported that their Departments did not care about training on agricultural precision. Nevertheless, 24.3 % of the respondents got trained on precision agriculture through personal efforts, while about 19% got trained by their respective Departments. In regard to education, 16% of the respondents got trained on precision agriculture at undergraduate and only 9% after graduation. The study concludes that despite the rapid technological development, agriculture in Sudan remained lagging, and the productivity is below the expectation. It recommends that the Ministries of Agriculture in different States in Sudan should take the issue of introduction of new technology seriously to boost the agricultural development to attain food security.

The Balance 2∙f (O) – f (H) as a Cornerstone in Formulation of Electrolytic Systems

Sep 2018 DOI 10.14302/issn.2377-2549.jndc-18-2177
Michałowski TadeuszCorresponding author

The Generalized Electron Balance (GEB) concept, related to electrolytic redox systems, is considered according to principles of Generalized Approach to Electrolytic Systems (GATES). Two equivalent Approaches (I and II) to GEB are presented. The Approach I, when perceived in convention of the card game, is based on the common pool of electrons as money, introduced by electron-active elements, named as players; electron-non-active elements are called there as fans. The GEB obtained according to Approach II results from the linear combination f12 = 2∙f(O) – f(H) of elemental balances: f1 = f(H) for H, and f2 = f(O) for O. Very important properties of f12 are presented here in details, and illustrated by a redox system where comproportion- ation reactions occur

Dream theory from the perspective of Islam

Aug 2018 DOI 10.14302/issn.2574-612X.ijpr-18-2243
Asadzandi MinooCorresponding author Assistant Professor, Department of Anesthesiology, Nursing Faculty, Baqiyatallah University of Medical Sciences, Tehran, Iran

Background and Objective: Sleep as a sign of the God wisdom and power, is the agent of stability and tranquility. Sleep has a spiritual dimension. Sincere dreams are the continuation of prophecy and guidance of the God. This study aimed to explain the dream theory from the perspective of Islam. Materials and Methods: This evolutionary study has focused on these questions: “what is the process of dreaming in Islam? Can people control their dreams”? Islamic evidences were taken from the verses and narrations related to the words “soul, sleep, dream and death”, using al-Mu’ayyim, authentic Shi’a commentary books, Bihar al-Anwar, Kofi principles, the Book of Resurrection and life after death. The religious and scientific evidences were analyzed based on the Walker and Event content analysis method. Dream theory was extracted from religious evidence. Results: Based on "revelation epistemology" during sleep, the ‘template of a higher universe’ travels to the unseen world and divine guidance can be provided. People with spiritual health) (owners of the Sound heart) can control the type of their dream, and solve problems by the guidance of God. In the perspective of Islam, there are three types of dreams: sometimes is divine guidance and glory from God, sometimes is sorrow from the devil, and sometimes are conflicts of daily living or past events. Conclusion: Regarding the spiritual aspect of sleep and its deep impact on physical and mental health, it is essential for medical staff to become familiar with dream theory from the perspective of Islam. They should explain to patients and family members the importance and impact of sleep on the acceleration of tissue repair and the treatment of anxiety and depression. To those who are willing to enjoy the divine guidance through the dream, they can teach the Islamic method of dream control.

Diffuse Optical Imaging: Safe and Functional Medical Imaging Technique

Aug 2018 DOI 10.14302/issn.2641-4538.jphi-18-2190
Hamdy OmniaCorresponding author Department of Engineering Applications of Laser, National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza Governorate 12613, Egypt

Optical imaging method provides safe and encouraging tool in many medical applications. In this editorial, principle operation, instrumentation, medical applications and advantages of diffuse optical imaging technique are presented and discussed.

Energy Conservation Open Access

Flame Propagation Model and Combustion Phenomena: Observations, Characteristics, Investigations, Technical Indicators, and Mechanisms

Jul 2018 DOI 10.14302/issn.2642-3146.jec-18-2232
Aljerf LoaiCorresponding author Department of Basic Sciences, Faculty of Dental Medicine, Damascus University, Damascus, Syria

Critical conditions are usually obtained for ignition in a self-heating solid system consisting of two components generating heat independently, one component being inexhaustible and the other exhaustible by either simple first order or autocatalytic reaction. Ignition depends upon whether the exhaustible component can cause a temperature rise in excess of the upper stationary, but unstable, value possible for the inexhaustible component reacting alone. The system provides a theoretical model for some commonly occurring examples of self-heating and ignition in porous solids containing oxidisable oils. It is shown that: (a) the ignition criterion of the model, which involves a nonarbitrary critical temperature increase, has a high degree of physical reality; (b) the model is, in principle, capable of predicting ignition from primary kinetic and thermal data; (c) it is likely to be possible often to make a reliable prediction of critical size for self-ignition in a two-component system at ordinary atmospheric temperatures by a simple extrapolation from small-scale ignition data, obtained at higher temperatures, in the same way as for ignition due to a single reaction. Examination of both adiabatic and non-adiabatic flame theories showed that a 'steady state' exists only under the special condition that a heat sink exists at the initial temperature. For the general case of freely propagating, non-adiabatic flames only a quasi-steady state can be achieved.

Human Health Research Open Access

An Urgent Human Health Dilemma Facing Refugees and their Host Caregivers?

May 2018 DOI 10.14302/issn.2576-9383.jhhr-18-2111
Silbermann MichaelCorresponding author Middle East Cancer Consortium (MECC)

The continuous waves of refugees from Africa and the Middle East to Europe present major inter¬cultural challenges to European health professionals and to society at large. A recent workshop in Sicily brought together local physicians, nurses, psychologists and managers of governmental agencies, along with representatives from Lebanon, Israel, Iraq, Iran, Sudan, Tunisia, Jordan and the European Society of Medical Oncology (ESMO) to develop training programs aimed at formulating dialogue between regional professionals and refugees. A major barrier refugees face is a lack of verbal and cultural communication, which hinders their smooth absorption into the new society. Cultural mediators who speak Arabic and Italian and understand the refugees' faith, tradition and beliefs are vital to successfully build bridges of trust between caregivers and refugees. Most asylum seekers experience anxiety, fear, and depression upon arrival in Europe. To achieve trust, all workshop participants agreed to develop a palliative care model that would best suit the unique circumstances now facing some Mediterranean countries and assist in overcoming the suffering of refugees during their initial stay in Europe. Such a model would include bio-psychosocial elements, essential for a culturally sensitive approach and based on core ethical principles.

Polysaccharide Transglycosylases: A Survey of Assay Methods

May 2018 DOI 10.14302/issn.2832-5311.jpcd-18-2077
Farkaš VladimírCorresponding author Institute of Chemistry, Centre for Glycomics, Slovak Academy of Sciences, 84538 Bratislava, Slovakia

Polysaccharide transglycosylases (PTGs) are a unique group of glycoside hydrolases playing important roles in the formation and modification of plant and fungal cell walls. Their action involves cutting the molecule of the polysaccharide substrate at the glycosidic bond, followed by transfer of the newly formed reducing-end fragment to the non-reducing end of another polysaccharide molecule, with the formation of a new glycosidic bond. As there is no net increase in the number of reducing ends in the system, conventional reductometric methods used to assess the activity of glycoside hydrolases are ineffective. Since the PTGs participate in vital processes, such as the elaboration of cell walls in plants and fungi, and are not present in animal cells, they are considered as possible targets for future specific fungicides and herbicides. Biochemical studies of PTGs, as well as the search for their inhibitors, require the availability of convenient and efficient methods for their assay. In this review we briefly describe the principles of methods used to detect and to determine the activity of this important group of enzymes.

Enzymes Open Access

Enzymology in its Second Century

Mar 2018 DOI 10.14302/issn.2690-4829.jen-18-2010
Brumm PhillipCorresponding author C5-6 Technologies LLC, 5627 Old Oak Drive, Fitchburg, WI 53711, USA

A centennial perspective on enzymology reviews foundational principles and looks ahead to single‑molecule methods, enzyme engineering, and computational design. The piece underscores translational opportunities in industry and medicine.

Glass Chromatography Application: TLC Separation of Benzoic Esters in Pharmaceutical Products

Dec 2017
Aljerf LoaiCorresponding author Department of Life Sciences, Faculty of Dentistry, University of Damascus

p-hydroxybenzoic acid esters are used as food and drug preservatives. These compounds were quantised by a reversed-phase thin-layer chromatography method based on the use of silanized silica gel as stationary phase. Thin layers chromatography of silanized silica gel (HF254) is implemented to separate p-hydroxybenzoic acid and its methyl, ethyl, propyl, butyl and benzyl esters. Borate buffer (pH 2) was used as a mobile phase with the addition of organic solvent as required. For the quantitative determination, the solutions to be analysed were applied in bands on 5 x 20 cm plates. The plates are developed in glass chromatography chambers lined with filter paper. After the plates have been developed they are dried at room temperature. The spots or bands of the various compounds are visualised under a 250-mµ UV light source. The extraction of the silica gel with methanol was effective. Six preservatives were separated with better results for benzyl- and butyl-p-hydroxybenzoates. Chromatographic development controlled by temperature stability in the chromatographic chamber and spectrophotometric determination of all the compounds were indicated. A second development with the same solvent mixture was suggested especially when low RF is involved. Various compounds are completely separated and a good determination of p-hydroxybenzoic acid and its principle esters are possible using a simple technique of elution and spectrophotometric determination.

DNA And RNA Research Open Access

Research Progress of the Functional Nucleic Acid Techniques in GMO Detection

Aug 2017 DOI 10.14302/issn.2575-7881.jdrr-17-1701
Xu WentaoCorresponding author Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China

Functional nucleic acids are a kind of nucleic acid sequences with special functions, which can specifically bind with the target substances or catalyze the reactions. Many target, including mycotoxins, small RNA, heavy metal ions and DNA segment, can bind to particular selected oligonucleotides, and then realized the detection. The uses of functional nucleic acids to detect the genetically modified organism (GMO) have been pursued using different approaches. Meanwhile, the flanking sequence, which was the most specific target in the GMO detection, was also usually separated with the help of functional nucleic acid. During the detection, the functional nucleic acid provided superior sensitivity, specificity and success rate compared with the traditional methods. In this report, we described different functional nucleic acids used in the GMO detection, they were classified based on their structures, and some of them were developed in our lab. The principle, structural composition, advantage, and the comparisons of the functional nucleic acids were reported. Considering most of the functional nucleic acids are fluorescently-labeled, in order to reduce the cost, more and more functional nucleic acids without labeling are under research.

Clinical and Immunological Beneficial Effects of Phyto V7 Consumption by HIV-1 Seropositive Individuals

Dec 2015 DOI 10.14302/issn.2324-7339.jcrhap-13-264
J. R WernikCorresponding author Facultad de Medicina, UDELAR, Montevideo, Uruguay;

Phytochemicals (PHT) are a large group of biologically active plant chemicals that may have positive effects on human health such as immune system stimulation, down regulation of inflammatory responses, radical scavenging activities, cell repair function, and antibacterial and antiviral activity. In this proof of principle 6 months study, the effects of supplementing a PHT mix, Phyto V7, to HIV-1 seropositive individuals and AIDS patients were examined. Individuals with CD4+ T-cells below 350 counts/mm3were assigned to one of the following treatments: CG1 - no treatment, CG2 - only highly active antiretroviral treatment (HAART), TG1 - only Phyto V7, and TG2- both Phyto V7 and HAART. After 3 months of treatment there were approximately (-)1%, 1%, 2% and 4% increase in the mean weight of the CG1, CG2, TG1 and TG2 groups, respectively. The tendency for the body mass index (BMI) was similar. The CD4+ counts increased by 13%, 39%, 53% and 35%, respectively. Similar trends were noted after 6 months with 2%, 79%, 53% and 69% increases in the CD4+ counts, respectively. There was a significant reduction in viremia only in groups receiving HAART. Overall better results were obtained in the group of patients receiving both HAART and Phyto V7, in which the mean weight increased by 5.7% and the CD4+ T-cell counts increased by 69% after 6 months. This study indicates that providing Phyto V7 to HIV-1 seropositive individuals and AIDS patients, receiving or not receiving HAART, improves their physical wellbeing and CD4+ counts, enabling them to cope better with the viral infection.

Vegetarianism in Food-Based Dietary Guidelines

May 2015 DOI 10.14302/issn.2379-7835.ijn-14-588
Baroni LucianaCorresponding author Primary Care Unit, Northern District, AULSS 9, via Manin 46, I-31046, Oderzo, Treviso, Italy

Plant foods are staples of many cultures in the world. Conversely, the appearance of vegetarianism in Western countries is a relatively recent phenomenon, showing an upward trend: people following vegetarian diets (both lacto-ovo-vegetarian-LOV and vegan-VEG), account today for about 10% of the Western population. According to the principle of non-discrimination, the most recent national dietary guidelines for the general population (DGLs) of some Western countries have adapted their contents to comprise vegetarian eating patterns. Moreover, since 1997, specific vegetarian food guidelines (VFGs) were developed. The aim of this review was to summarize and compare the information and recommendations of the food-based dietary guidelines (FBDGs) contained in the DGLs usable by vegetarians, and in the main VFGs; to extract a list of basic criteria for the planning of a well-balanced vegetarian diet, and to identify the most valid FBDG for vegetarians. An Internet search was conducted in the English language, in order to identify national DGLs applicable to vegetarian dietary patterns, and international VFGs. Four Western DGLs and six VFGs were selected. Compared to the majority of DGLs, VFGs are not an "adaptation" of omnivorous (OMN) eating patterns to vegetarian ones, but rather devoted guides: they include only foods consumed by vegetarians, and take into account their specific nutritional needs. VFGs offer qualified advice to meet the most updated standards of adequacy and safety of the diet: the varied consumption of all plant foods, mainly unprocessed; the respect of individual’s calorie requirements; the optional addition of small amounts of foods of animal origin (dairy/eggs); the attention towards some potentially critical nutrients. According to this criteria, the VFG for North American Vegetarians can represent the most accurate and practical model: not only is it consistent with research on the adequacy of vegetarian diets, but it is applicable both to LOV and VEG eating patterns and to all lifecycle stages beyond 4 years of age.

Supercritical Fluid Technology: A Review

Jan 2013 DOI 10.14302/issn.2328-0182.japst-12-145
Parhi RabinarayanCorresponding author GITAM Institute of Pharmacy, GITAM University, Gandhi Nagar Campus, Rushikonda, Visakhapatnam-530045, Andhra Pradesh, India

The challenges ever faced by pharmaceutical industry is mainly due to discovery of new drugs and development of new technologies. Supercritical fluid (SCF) technology is one such technique, which has become an important tool in the production of different particulate systems along with extraction and drying of protein and peptides during last couple of decade because of its specific properties such as flexibility in use, reduced environmental concern and its simplicity. In this review, we briefly describe the operating principles and parameters influencing each one of SCF processes along with their merits and perspectives. The application of SCF technology in pharmaceutical industry, including particle and crystal engineering, composite particles’ preparation, coating of solid dosage form, liposome preparation, extraction and protein and peptide drying are discussed.

Frequently asked questions

Are these articles peer-reviewed?
Yes. Articles published at Open Access Pub go through single-blind peer review (double-blind on request) under an editorial board before publication.
Are the articles free to read?
Yes. Every article is open access — read the full text online for free and download the PDF or XML, with no paywall or subscription.
How do I cite an article?
Use the DOI shown on each result and on the article page; it is the permanent, citable link to the article.
How do I read or download an article?
Click "Read full text" to open the article HTML, or use the PDF / XML buttons on each card to download it.