Results 71 to 80 of about 85,107 (267)

Seasonal Changes in Sleep Duration in African American and African College Students Living In Washington, D.C.

The Scientific World Journal, 2007
Duration of nocturnal melatonin secretion, a marker of “biological night” that relates to sleep duration, is longer in winter than in summer in patients with seasonal affective disorder (SAD), but not in healthy controls.
Janna Volkov, Kelly J. Rohan, Samina M. Yousufi, Minh-Chau Nguyen, Michael A. Jackson, Courtney M. Thrower, John W. Stiller, Teodor T. Postolache   +7 more
doaj   +1 more source

Adapting residency training. Training adaptable residents.

The Western journal of medicine, 1998
Graduate medical education has been criticized for failing to adequately prepare young physicians to enter the workforce upon completion of their training. In addressing this criticism, the author makes arguments both for and against this assertion. Broad qualitative changes (graduate medical education training position allocation, subspecialists' role
openaire   +1 more source

Engineering Concentration‐Dependent Intravitreal Mobility via Cyclic Arginine‐Enriched Nanocarrier Surface Modification: In Vivo Proof‐of‐Concept in a Porcine Large Animal Model

Advanced Healthcare Materials, EarlyView.
In this study, Hammer et al. highlight cyclic‐arginine surface engineering as a highly biocompatible, controllable, and concentration‐dependent regulator of intravitreal nanoparticle mobility in vivo in a translational large animal model. The cyclic arginine surface‐modification supports the development of next‐generation biomaterials for long‐acting ...
Maximilian Hammer, Bryan Calder Ackermann, Anna Stoß, Niklas Junker, Ludwig Geisweid, Sabrina Wohlfart, Jonathan Herth, Simon William Pohl, Manuel Ben Böhmann, André Schulz, Victor Aristide Augustin, Gerd Uwe Auffarth, Philipp Uhl   +12 more
wiley   +1 more source

Suicide risk, hopelessness, interpersonal needs, and mental health in a sample of migrant psychiatric patients: a case-control study

European Psychiatry
Introduction Suicide is a multifactorial phenomenon characterized by many biological, psychological, and social-cultural factors. The study of this phenomenon in migrants is complex, with no theoretical framework that can describe the available ...
L. Polidori, I. Berardelli, S. Sarubbi, G. Sarli, C. Corti, D. Erbuto, M. Pompili, M. Cifrodelli   +7 more
doaj   +1 more source

Advances in 3D Bioprinting for Breast Cancer Modeling: Tumor Microenvironment, Metastasis, and Drug Screening

Advanced Healthcare Materials, EarlyView.
Three‐dimensional bioprinting transforms breast cancer modeling from simple constructs into spatially organized, multicellular, perfused, and patient‐derived platforms. This review shows how bioinks, cellular composition, architecture, and flow govern tumor behavior and drug response, while revealing why complexity alone is insufficient without ...
Mustafa Nakipoglu, Mahboobeh Mahmoodi, Ehsanul Hoque Apu, Fahimeh Shahabipour, Sibel Emir Diltemiz, Sanjib Saha, Halima Alem, Nureddin Ashammakhi   +7 more
wiley   +1 more source

Modified ILM flap techniques versus classical inverted ILM flap technique for large macular holes: a systematic review and meta-analysis of randomized controlled trials

International Journal of Retina and Vitreous
Background Macular holes (MHs) constitute a vitreoretinal interface disorder that occurs when structural abnormalities in the fovea lead to impaired central vision. The standard treatment for MHs is mainly surgical.
Sarah A. Alghamdi, Faisal F. Aljahdali, Rahaf K. Sharif, Jumanah J. Homsi, Asma A. Alzahrani, Lugean K. Alomari, Amro Abukhashabah   +6 more
doaj   +1 more source

An Antimicrobial, Cell‐Adhesive, and Growth Factor‐Producing Living Material Engineered From Bacillus subtilis Biofilms for Wound Healing

Advanced Healthcare Materials, EarlyView.
Bacillus subtilis is engineered to produce cell‐adhesive biofilms by functionalization of its biofilm scaffold protein TasA with a cell‐adhesion sequence. Living bacteria within the biofilm are also engineered to secrete growth factors and natively produce antimicrobial peptides (AMPs), resulting in a cell‐adhesive, antimicrobial, and growth factor ...
Mélanie Côté‐Cyr, Marie‐Jeanne Archambault, Caroline Dupuis, Steve Bourgault   +3 more
wiley   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Thermal‐Driven Diode Polarity Switching From Competing Helical Superconducting States in WTe2/α‐Fe2O3 Heterostructures

Advanced Materials, EarlyView.
A Nb‐proximitized Josephson junction based on a WTe2/α‐Fe2O3 heterostructure exhibits a robust superconducting diode effect with programmable polarity. The diode direction can be trained by magnetic fields and switched by temperature cycling, revealing tunable finite‐momentum pairing states and competing superconducting states in symmetry‐broken ...
Enze Zhang, Grant Z. X. Yang, Zi‐Ting Sun, Xinhou Chen, Shishun Zhao, Chufan Chen, Chenhui Zhang, Fanrui Hu, K. T. Law, Hyunsoo Yang   +9 more
wiley   +1 more source

Spontaneous Resolution of Bilateral Acute Syphilitic Posterior Placoid Chorioretinopathy: Multimodal Imaging Findings and Literature Review

Case Reports in Ophthalmological Medicine
Syphilis is a sexually transmitted infection caused by the Gram-negative spirochete bacterium Treponema pallidum. Acute syphilitic posterior placoid chorioretinopathy (ASPPC) is a distinctive and increasingly recognized ocular manifestation characterized
Saeed Alamoudi, Hanan A. Alshalan
doaj   +1 more source