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https://www.readbyqxmd.com/read/29775625/reduction-sensitive-polymeric-nanomedicines-an-emerging-multifunctional-platform-for-targeted-cancer-therapy
#1
Huanli Sun, Yifan Zhang, Zhiyuan Zhong
The development of smart delivery systems that are robust in circulation and quickly release drugs following selective internalization into target cancer cells is a key to precision cancer therapy. Interestingly, reduction-sensitive polymeric nanomedicines showing high plasma stability and triggered cytoplasmic drug release behavior have recently emerged as one of the most exciting platforms for targeted delivery of various anticancer drugs including small chemical drugs, proteins, and nucleic acids. In vivo studies in varying tumor models reveal that these reduction-sensitive multifunctional nanomedicines outperform the currently used clinical formulations and reduction-insensitive counterparts, bringing about not only significantly enhanced tumor selectivity, accumulation and inhibition efficacy but also markedly reduced systemic toxicity and improved therapeutic index...
May 15, 2018: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/29775470/insurance-optimizes-complex-interactive-and-cooperative-behaviors-in-public-goods-games
#2
Jinming Du
Global cooperation is urgently needed to prevent risks of world-wide extreme events and disasters for sustainable development. In human societies, however, there exists bias toward interacting with partners with similar characteristics, but not contributing globally. We study how complex interactive behaviors evolve under risks through proposing a threshold public goods game model. In the model, individuals either play games with participants who own the same phenotype, or contribute to the collective target of global public goods...
2018: PloS One
https://www.readbyqxmd.com/read/29775342/boundaries-control-collective-dynamics-of-inertial-self-propelled-robots
#3
A Deblais, T Barois, T Guerin, P H Delville, R Vaudaine, J S Lintuvuori, J F Boudet, J C Baret, H Kellay
Simple ingredients, such as well-defined interactions and couplings for the velocity and orientation of self-propelled objects, are sufficient to produce complex collective behavior in assemblies of such entities. Here, we use assemblies of rodlike robots made motile through self-vibration. When confined in circular arenas, dilute assemblies of these rods act as a gas. Increasing the surface fraction leads to a collective behavior near the boundaries: polar clusters emerge while, in the bulk, gaslike behavior is retained...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29775078/effects-of-a-parent-implemented-developmental-reciprocity-treatment-program-for-children-with-autism-spectrum-disorder
#4
Grace W Gengoux, Salena Schapp, Sarah Burton, Christina M Ardel, Robin A Libove, Gina Baldi, Kari L Berquist, Jennifer M Phillips, Antonio Y Hardan
Developmental approaches to autism treatment aim to establish strong interpersonal relationships through joint play. These approaches have emerging empirical support; however, there is a need for further research documenting the procedures and demonstrating their effectiveness. This pilot study evaluated changes in parent behavior and child autism symptoms following a 12-week Developmental Reciprocity Treatment parent-training program. A total of 22 children with autism spectrum disorder between 2 and 6 years (mean age = 44...
May 1, 2018: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/29774561/the-relationship-between-differential-stimulus-relatedness-and-implicit-measure-effect-sizes
#5
Jamie Cummins, Bryan Roche, Ian Tyndall, Aoife Cartwright
Implicit measures have been hypothesized to allow researchers to ascertain the existence and strength of relations between stimuli, often in the context of research on attitudes. However, little controlled behavioral research has focused on whether stimulus relations, and the degree of relatedness within such relations, are indexed by implicit measures. The current study eamined this issue using a behavior-analytic implicit-style stimulus relation indexing procedure known as the Function Acquisition Speed Test (FAST)...
May 17, 2018: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/29774442/integrated-models-of-care-for-individuals-with-opioid-use-disorder-how-do-we-prevent-hiv-and-hcv
#6
REVIEW
Katherine M Rich, Joshua Bia, Frederick L Altice, Judith Feinberg
PURPOSE OF REVIEW: To describe models of integrated and co-located care for opioid use disorder (OUD), hepatitis C (HCV), and HIV. RECENT FINDINGS: The design and scale-up of multidisciplinary care models that engage, retain, and treat individuals with HIV, HCV, and OUD are critical to preventing continued spread of HIV and HCV. We identified 17 models within primary care (N = 3), HIV specialty care (N = 5), opioid treatment programs (N = 6), transitional clinics (N = 2), and community-based harm reduction programs (N = 1), as well as two emerging models...
May 17, 2018: Current HIV/AIDS Reports
https://www.readbyqxmd.com/read/29773793/dynamically-induced-cascading-failures-in-power-grids
#7
Benjamin Schäfer, Dirk Witthaut, Marc Timme, Vito Latora
Reliable functioning of infrastructure networks is essential for our modern society. Cascading failures are the cause of most large-scale network outages. Although cascading failures often exhibit dynamical transients, the modeling of cascades has so far mainly focused on the analysis of sequences of steady states. In this article, we focus on electrical transmission networks and introduce a framework that takes into account both the event-based nature of cascades and the essentials of the network dynamics...
May 17, 2018: Nature Communications
https://www.readbyqxmd.com/read/29773359/-psychoactive-substances-use-in-r%C3%A3-union-island-and-mayotte-french-departments-in-indian-ocean
#8
Amélie Daveluy, Françoise Haramburu
INTRODUCTION: The government plan for the fight against drugs and addictive behaviors 2013-2017 includes several actions concerning French overseas territories, in particular to strengthen information on drug addiction. The Interministerial mission for combating drugs and addictive behaviors (MILD&CA) has commissioned the Bordeaux addictovigilance center to strengthen exchanges on addictovigilance with Réunion Island and Mayotte and to make an inventory of problematic drug use in these two French departments of Indian Ocean...
February 27, 2018: Thérapie
https://www.readbyqxmd.com/read/29772896/protein-self-assemblies-that-can-generate-hold-and-discharge-electric-potential-in-response-to-changes-in-relative-humidity
#9
Nathan A Carter, Tijana Z Grove
Generation of electric potential upon external stimulus has attracted much attention for the development of highly functional sensors and devices. Herein, we report large-displacement, fast actuation in the self-assembled engineered repeat protein Consensus Tetratricopeptide Repeat protein (CTPR18) materials. The ionic nature of the CTPR18 protein coupled to the long-range alignment upon self-assembly results in the measured conductivity of 7.1 × 10-2 S cm-1, one of the highest reported for protein materials...
May 17, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29771372/tracking-aedes-aegypti-diptera-culicidae-larval-behavior-across-development-effects-of-temperature-and-nutrients-on-individuals-foraging-behavior
#10
Michael H Reiskind, M Shawn Janairo
Immature mosquitoes alter their foraging behavior in response to variation in nutrients, predators, and temperature, with consequences on the adult stage where pathogens are transmitted. These patterns of behavior have not been described with respect to both developmental stage and environmental variation, nor has behavior been examined within an individual across instars. We hypothesized that individual larvae have distinct behavioral syndromes, and predict that the rank of foraging activity in the third instar will be correlated with foraging activity in the fourth instar for an individual across all conditions...
May 15, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29771189/-i-m-just-trying-to-cope-for-both-of-us-challenges-and-supports-of-family-caregivers-in-participant-directed-programs
#11
Aimee Milliken, Ellen K Mahoney, Kevin J Mahoney, Kate Mignosa, Isabella Rodriguez, Catherine Cuchetti, Megumi Inoue
Recently, national attention has focused on the needs of family caregivers providing complex chronic care, noting the necessity to better understand the scope of challenges they encounter. Although a robust body of literature exists about the scope of family caregiving, little is known specifically about the experiences and perspectives of family caregivers who support participant directed (PD) participants, particularly across the caregiving trajectory. Therefore, the aim of this qualitative descriptive study was to describe what family caregivers of individuals with developmental disabilities, physical disabilities, aging, or chronic health conditions identify as the challenges they experience as complex, and their perceptions of the effectiveness and gaps in family support resources in PD...
May 17, 2018: Journal of Gerontological Social Work
https://www.readbyqxmd.com/read/29770911/influences-to-adhd-problem-recognition-mixed-method-investigation-and-recommendations-to-reduce-disparities-for-latino-youth
#12
Lauren M Haack, Jocelyn Meza, Yuanyuan Jiang, Eva Jimenez Araujo, Linda Pfiffner
ADHD problem recognition serves as the first step of help seeking for ethnic minority families, such as Latinos, who underutilize ADHD services. The current mixed-method study explores underlying factors influencing recognition of ADHD problems in a sample of 159 school-aged youth. Parent-teacher informant discrepancy results suggest that parent ethnicity, problem domain, and child age influence ADHD problem recognition. Emerging themes from semi-structured qualitative interviews/focus groups conducted with eighteen Spanish-speaking Latino parents receiving school-based services for attention and behavior concerns support a range of recognized ADHD problems, beliefs about causes, and reactions to ADHD identification...
May 16, 2018: Administration and Policy in Mental Health
https://www.readbyqxmd.com/read/29770198/recent-advances-in-managing-understanding-meningioma
#13
REVIEW
Nawal Shaikh, Karan Dixit, Jeffrey Raizer
Meningiomas are the most common adult primary intracranial tumor. Despite their higher incidence, there have not-until recently-been as many advances in understanding and managing meningiomas. Thus far, two broad classes of meningiomas have emerged on the basis of their mutational profile: those driven by neurofibromatosis 2 (NF2) inactivation and those with non-NF2 driver gene alterations, such as mammalian target of rapamycin and Hedgehog, Wingless/b-catenin, Notch, transforming growth factor-b receptor, mitogen-activated protein kinase, and phospholipase C pathway alterations...
2018: F1000Research
https://www.readbyqxmd.com/read/29769104/prevalence-of-emergency-contraceptive-pill-use-among-spanish-adolescent-girls-and-their-family-and-psychological-profiles
#14
Antonia Jiménez-Iglesias, Carmen Moreno, Irene García-Moya, Francisco Rivera
BACKGROUND: Adolescent girls' family context and psychological characteristics play important roles in their sexual behavior, including the use of the emergency contraceptive pill (ECP). This study aims to (1) determine the prevalence of ECP use among girls who have had sexual intercourse and (2) comparatively analyze their family and psychological profiles according to whether they have used ECPs. METHODS: The sample of 1735 Spanish girls aged 15 to 18 came from a representative sample of the 2014 edition of the Health Behaviour in School-aged Children (HBSC) study...
May 16, 2018: BMC Women's Health
https://www.readbyqxmd.com/read/29768884/coating-chitosan-thin-shells-a-facile-technique-to-improve-dispersion-stability-of-magnetoliposomes
#15
Thi Tuong Vy Phan, Madhappan Santha Moorthy, Hyun Wook Kang, Seung Yun Nam, Yong Wook Lee, Junghwan Oh
Magnetoliposomes (ML) have been emerging as a novel multifunctional nanoparticle with a wide range of biomedical and therapeutic applications over the past decade. Although the ML system has shown excellent performances, the stability and lipid peroxidation of liposomal components are still remaining as key issues and need to be solved for intensive applications. Changing zeta potential of nanoparticles' surface can be seen as a potential way to achieve the stable dispersion. In this work, we have employed the positive charged, abundant and cheap chitosan to coat ML in order to change the zeta potential of the ML system and examined the stability of chitosan@magnetoliposomes (CML) in long-term storage...
January 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29768651/cannabinoid-hyperemesis-syndrome-reports-of-fatal-cases
#16
Mahra Nourbakhsh, Angela Miller, Jeff Gofton, Graham Jones, Bamidele Adeagbo
Cannabinoid hyperemesis syndrome (CHS) is one of the more clinically challenging effects of cannabis consumption. It is characterized by cyclic attacks of nausea and vomiting in chronic cannabinoid users and learned behavior of compulsive hot bathing. The deaths of a 27-year-old female, a 27-year-old male, and a 31-year-old male with a history of CHS are reported. The decedents had a history of cyclical nausea and vomiting, chronic cannabinoid use and negative laboratory, radiological and endoscopic findings...
May 16, 2018: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29767500/enhanced-performance-of-field-effect-transistors-based-on-black-phosphorus-channels-reduced-by-galvanic-corrosion-of-al-over-layers
#17
Sangik Lee, Chansoo Yoon, Ji Hye Lee, Yeon Soo Kim, Mi Jung Lee, Wondong Kim, Jaeyoon Baik, Quanxi Jia, Bae Ho Park
Two-dimensional (2D) layered semiconducting materials with considerable bandgaps are emerging as a new class of materials applicable to next-generation devices. Particularly, black phosphorus (BP) is considered to be very promising for next-generation 2D electrical and optical devices due to its high carrier mobility of 200-1000 cm2 V-1 s-1 and large on/off ratio of 104 -105 in field effect transistors. However, its environmental instability in air requires fabrication processes in a glove box filled with nitrogen or argon gas followed by encapsulation, passivation, and chemical functionalization of BP...
May 16, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29767380/analysis-of-an-attractor-neural-network-s-response-to-conflicting-external-inputs
#18
Kathryn Hedrick, Kechen Zhang
The theory of attractor neural networks has been influential in our understanding of the neural processes underlying spatial, declarative, and episodic memory. Many theoretical studies focus on the inherent properties of an attractor, such as its structure and capacity. Relatively little is known about how an attractor neural network responds to external inputs, which often carry conflicting information about a stimulus. In this paper we analyze the behavior of an attractor neural network driven by two conflicting external inputs...
May 16, 2018: Journal of Mathematical Neuroscience
https://www.readbyqxmd.com/read/29767196/strategies-for-directing-cells-into-building-functional-hearts-and-parts
#19
REVIEW
Mahboubeh Jafarkhani, Zeinab Salehi, Reza Kowsari-Esfahan, Mohammad Ali Shokrgozar, M Rezaa Mohammadi, Jayakumar Rajadas, Masoud Mozafari
The increasing population of patients with heart disease and the limited availability of organs for transplantation have encouraged multiple strategies to fabricate healthy implantable cardiac tissues. One of the main challenges in cardiac tissue engineering is to direct cell behaviors to form functional three-dimensional (3D) biomimetic constructs. This article provides a brief review on various cell sources used in cardiac tissue engineering and highlights the effect of scaffold-based signals such as topographical and biochemical cues and stiffness...
May 16, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29765926/sexual-disharmony-in-menopausal-women-and-their-husband-a-qualitative-study-of-reasons-strategies-and-ramifications
#20
Masumeh Ghazanfarpour, Talat Khadivzadeh, Robab Latifnejad Roudsari
Objectives: The goal of this study was to explore perceptions and experiences of general practitioners and midwives during sexual dialogue with menopausal women. Methods: In a descriptive exploratory qualitative study, 13 midwives and 12 general practitioners were selected using a semi-structured interview and purposive sampling method. Data analysis was conducted using qualitative content analysis adopted by Graneheim and Lundman. Results: Through data analysis "sexual disharmony" emerged as a central theme, which included three categories of reasons, strategies, and ramifications of sexual disharmony...
April 2018: Journal of Menopausal Medicine
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