Effect of trimethylamine--oxide on the phase separation of aqueous polyethylene glycol-600-Dextran-75 two-phase systems.

The emergence of phase separation in both intracellular biomolecular condensates (membrane-less organelles) and aqueous two-phase systems (ATPS) relies on the formation of immiscible water-based phases/domains. The solvent properties and arrangement of hydrogen bonds within these domains have been shown to differ and can be modulated with the addition of various inorganic salts and osmolytes. The naturally occuring osmolyte, trimethylamine--oxide (TMAO), is well established as a biological condensate stabilizer whose presence results in enhanced phase separation of intracellular membrane-less compartments.

Comparing scientific worldviews between allopathic medical degree and East Asian medicine degree students utilizing the thinking about science survey instrument (TSSI).

Background: Integrative medicine has become a new healthcare model due to the growing evidence base for complementary and integrative therapies. However, some question whether complementary and integrative therapies can truly be integrated with biomedicine due to differences in underlying paradigms and theoretical bases. This study aimed to explore differences in scientific worldviews between students studying East Asian medicine and those completing an allopathic medical degree using the validated Thinking about Science Survey Instrument (TSSI).

Current Perspectives on the Impact of Pre-Exposure Prophylaxis Stigma Regarding Men Who Have Sex with Men in the United States.

Pre-exposure prophylaxis or PrEP is a Food and Drug Administration approved human immunodeficiency virus (HIV) prevention tool that reduces the risk of infection by greater than 90%. While it does not provide protection against other sexually transmittable infections and blood-borne illnesses such as hepatitis C, syphilis, chlamydia, and gonorrhea, it is a highly effective in reducing the risk of transmission of HIV among men who have sex with men. Despite the success of PrEP, there remain barriers to PrEP uptake rooted in stigmatized perspectives shared by health professionals, patients, and community members.

An Ethical Obligation for Bioethicists to Utilize Social Media.

In this issue of the Hastings Center Report, Mélanie Terrasse, Moti Gorin, and Dominic Sisti respond to recent efforts to address the "digital attention crisis," arguing that "[b]ioethicists should make their voices heard in the debate on the responsibilities of social media companies toward their consumers and society at large." I strongly agree. I have frequently been asked by my colleagues why I spend time on social media professionally, on top of all the competing demands associated with my work as a bioethicist and medical educator.

How Should Social Media Be Used in Transplantation? A Survey of the American Society of Transplant Surgeons.

Background: Social media platforms are increasingly used in surgery and have shown promise as effective tools to promote deceased donation and expand living donor transplantation. There is a growing need to understand how social media-driven communication is perceived by providers in the field of transplantation.

Methods: We surveyed 299 members of the American Society of Transplant Surgeons about their use of, attitudes toward, and perceptions of social media and analyzed relationships between responses and participant characteristics.

A Calling to Professionalism.

This article was migrated. The article was marked as recommended. The editor for this theme issue on Accessing Medical Education has asked authors to reflect on how they came to be the medical education professional they are today.

Who's misbehaving? Perceptions of unprofessional social media use by medical students and faculty.

Background: Social media use by physicians offers potential benefits but may also be associated with professionalism problems. The objectives of this study were: 1) to examine and compare characteristics of social media use by medical students and faculty; 2) to explore the scope of self- and peer-posting of unprofessional online content; and 3) to determine what actions were taken when unprofessional content was viewed.

Methods: An anonymous, web-based survey was sent to medical students and faculty in October, 2013 at the Albert Einstein College of Medicine in Bronx, New York.

Ethical Implications of Social Stigma Associated with the Promotion and Use of Pre-Exposure Prophylaxis for HIV Prevention.

Identifying sources of and eliminating social stigma associated with the promotion and use of pre-exposure prophylaxis (PrEP) for the prevention of sexually acquired HIV infection among men who have sex with men (MSM) is both a moral imperative and necessary requirement to ensure that public health objectives of HIV prevention can be met. This article will examine and address ethical concerns and criticisms regarding the use of PrEP, barriers to its promotion, and use among MSM and examine the types of social stigma associated with PrEP. An ethical justification for both healthcare and LGBT communities to address and overcome social stigma regarding the use of PrEP among MSM is offered.

Opportunities and ethical challenges for the practice of medicine in the digital era.

Technological advances have been a driving force in the practice of medicine. From the discovery of x-rays' medical applications to the utilization of dialysis and surgical transplantation of organs, technology has presented new opportunities, and at times, ethical challenges for physicians. In recent years, the increased proliferation of social media tools has had a significant impact on how people engage with one another, and how they want to engage with their healthcare providers.

Sagebrush carrying out hydraulic lift enhances surface soil nitrogen cycling and nitrogen uptake into inflorescences.

Plant roots serve as conduits for water flow not only from soil to leaves but also from wetter to drier soil. This hydraulic redistribution through root systems occurs in soils worldwide and can enhance stomatal opening, transpiration, and plant carbon gain. For decades, upward hydraulic lift (HL) of deep water through roots into dry, litter-rich, surface soil also has been hypothesized to enhance nutrient availability to plants by stimulating microbially controlled nutrient cycling.

Better to light a candle than curse the darkness: illuminating spatial localization and temporal dynamics of rapid microbial growth in the rhizosphere.

The rhizosphere is a hotbed of microbial activity in ecosystems, fueled by carbon compounds from plant roots. Basic questions about the location and dynamics of plant-spurred microbial growth in the rhizosphere are difficult to answer with standard, destructive soil assays mixing a multitude of microbe-scale microenvironments in a single, often sieved, sample. Soil microbial biosensors designed with the luxCDABE reporter genes fused to a promoter of interest enable continuous imaging of the microbial perception of (and response to) environmental conditions in soil.

Interprofessional student education: exchange program between Albert Einstein College of Medicine and Pacific College of Oriental Medicine.

The growing popularity of complementary and alternative medicine (CAM), of which estimated 38% of adults in the United States used in 2007, has engendered changes in medical school curricula to increase students' awareness of it. Exchange programs between conventional medical schools and CAM institutions are recognized as an effective method of interprofessional education. The exchange program between Albert Einstein College of Medicine (Einstein, Yeshiva University) and Pacific College of Oriental Medicine, New York campus (PCOM-NY) is in its fifth year and is part of a broader relationship between the schools encompassing research, clinical training, interinstitutional faculty and board appointments, and several educational activities.

Micro-scale water potential gradients visualized in soil around plant root tips using microbiosensors.

Water availability and movement in soil are critical determinants of resource availability to, and interactions among, members of the soil community. However, it has been impossible to observe gradients in soil water potential empirically at millimetre spatial scales. Here we describe progress towards that goal using output from two microbial biosensors, Pantoea agglomerans BRT98/pPProGreen and Pseudomonas putida KT2442/pPProGreen, engineered with a reporter system based on the osmotically sensitive proU promoter from Escherichia coli.

Tracking the current rise of chinese pharmaceutical bionanotechnology.

Background: THE CONTEXT AND PURPOSE OF THE STUDY: Over the last decade China has emerged as a major producer of scientific publications, currently ranking second behind the US. During that time Chinese strategic policy initiatives have placed indigenous innovation at the heart of its economy while focusing internal R&D investments and the attraction of foreign investment in nanotechnology as one of their four top areas. China's scientific research publication and nanotechnology research publication production has reached a rank of second in the world, behind only the US.

Ethical perspectives: opioid treatment of chronic pain in the context of addiction.

The authors apply eight ethical domains of analysis to the question of treatment of chronic pain with opioids in patients with histories of substance use disorders: autonomy, nonmaleficence, beneficence, justice, medical condition, patient preference, quality of life, and consideration of specific individual or sociocultural issues. These eight domains are drawn from principle-based and case-based ethical perspectives. The domains are developed by review of available literature and through application to a specific presented case.