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https://www.readbyqxmd.com/read/28724152/cost-of-incremental-expansion-of-an-existing-family-medicine-residency-program
#1
Evan A Ashkin, Warren P Newton, Brian Toomey, Ronald Lingley, Cristen P Page
BACKGROUND AND OBJECTIVES: Expanding residency training programs to address shortages in the primary care workforce is challenged by the present graduate medical education (GME) environment. The Medicare funding cap on new GME positions and reductions in the Health Resources and Services Administration (HRSA) Teaching Health Center (THC) GME program require innovative solutions to support primary care residency expansion. Sparse literature exists to assist in predicting the actual cost of incremental expansion of a family medicine residency program without federal or state GME support...
July 2017: Family Medicine
https://www.readbyqxmd.com/read/28723710/controlled-attenuation-parameter-and-mr-spectroscopy-measured-liver-steatosis-are-discordant-in-hiv-infected-adults-with-high-body-mass
#2
Jennifer C Price, Jennifer L Dodge, Yifei Ma, Rebecca Scherzer, Natalie Korn, Kyle Tillinghast, Marion G Peters, Susan Noworolski, Phyllis C Tien
OBJECTIVE: Hepatic steatosis (HS) is common in HIV-infected individuals. Magnetic resonance spectroscopy (MRS) is the preferred non-invasive method for HS measurement but is expensive. Controlled attenuation parameter (CAP) also assesses HS and is conveniently performed concomitantly with transient elastography. We aimed to assess the accuracy of CAP in the setting of HIV infection. DESIGN: Cross-sectional study. METHODS: CAP and MRS were performed in 82 subjects (39 HIV-monoinfected;7 HCV-monoinfected;21 HIV/HCV-coinfected; 15 with neither infection)...
July 18, 2017: AIDS
https://www.readbyqxmd.com/read/28723177/one-minute-fish-freshness-evaluation-by-testing-the-volatile-amine-gas-with-an-ultrasensitive-porous-electrode-capped-organic-gas-sensor-system
#3
Liang-Yu Chang, Ming-Yen Chuang, Hsiao-Wen Zan, Hsin-Fei Meng, Chia-Jung Lu, Ping-Hung Yeh, Jian-Nan Chen
In this work, we successfully demonstrate a fast method to determine the fish freshness by using a sensing system containing an ultrasensitive amine gas sensor to detect the volatile amine gas from the raw fish meat. When traditional titration method takes 4 h and complicated steps to test the total volatile basic nitrogen (TVB-N) as a worldwide standard for fish freshness, our sensor takes 1 min to deliver an electrical sensing response that is highly correlated with the TVB-N value. When detecting a fresh fish with a TVB-N as 18 mg/100 g, the sensor delivers an effective ammonia concentration as 100 ppb...
April 28, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28723085/catalytic-allylic-oxidation-of-cyclic-enamides-and-3-4-dihydro-2h-pyrans-by-tbhp
#4
Yang Yu, Ranad Humeidi, James R Alleyn, Michael P Doyle
Allylic oxidation of heteroatom substituted cyclic alkenes by tert-butyl hydroperoxide (70% TBHP in water) using catalytic dirhodium caprolactamate [Rh2(cap)4] forms enone products with a variety of 2-substituted cyclic enamides and 3,4-dihyro-2H-pyrans. These reactions occur under mild reaction conditions, are operationally convenient to execute, and are effective for product formation with as low as 0.25 mol% catalyst loading. With heteroatom stabilization of the intermediate allylic free radical two sites for oxidative product formation are possible, and the selectivity of the oxidative process varies with the heteroatom when R = H...
July 19, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28722443/quantum-dot-nanotoxicity-investigations-using-human-lung-cells-and-toxor-electrochemical-enzyme-assay-methodology
#5
Tony O'Hara, Brian Seddon, Andrew O'Connor, Siobhán McClean, Baljit Singh, Emmanuel Iwuoha, Xolile Fuku, Eithne Dempsey
Recent studies have suggested that certain nanomaterials can interfere with optically based cytotoxicity assays resulting in underestimations of nanomaterial toxicity. As a result there has been growing interest in the use of whole cell electrochemical biosensors for nanotoxicity applications. Herein we report application of an electrochemical cytotoxicity assay developed in house (TOXOR) in the evaluation of toxic effects of mercaptosuccinic acid capped cadmium telluride quantum dots (MSA capped CdTe QDs), toward mammalian cells...
January 27, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28722328/manipulation-of-inorganic-atomic-layer-networks-by-solution-phase-co-assembly
#6
Yajiao Hao, Lin Yu, Chuying Dai, Song Li, Yang Yu, Bo Ju, Minjie Li, Sean Xiao-An Zhang
Homogeneous two-dimensional (2D) lamellar assemblies of Au(I)-thiolate coordination polymer (ATCP) have been achieved with double-ligand co-assembly. The orbital levels and the bandgap of the 2D Au(I)-S network in the centre of the lamellae can be continuously tuned by the capping ligands on both sides, demonstrating a new type of inorganic-organic composite semiconductor, whose band structure can be easily tuned by low-temperature solution-phase co-assembly. What's more, the chemical reactivity of these ATCP co-assemblies is also proved to be largely dependent on the organic substituents, showing well-tunable transforming rates to gold nanoparticles...
July 18, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28722188/preventing-thin-film-dewetting-via-graphene-capping
#7
Peigen Cao, Peter Bai, Arash A Omrani, Yihan Xiao, Kacey L Meaker, Hsin-Zon Tsai, Aiming Yan, Han Sae Jung, Ramin Khajeh, Griffin F Rodgers, Youngkyou Kim, Andrew S Aikawa, Mattew A Kolaczkowski, Yi Liu, Alex Zettl, Ke Xu, Michael F Crommie, Ting Xu
A monolayer 2D capping layer with high Young's modulus is shown to be able to effectively suppress the dewetting of underlying thin films of small organic semiconductor molecule, polymer, and polycrystalline metal, respectively. To verify the universality of this capping layer approach, the dewetting experiments are performed for single-layer graphene transferred onto polystyrene (PS), semiconducting thienoazacoronene (EH-TAC), gold, and also MoS2 on PS. Thermodynamic modeling indicates that the exceptionally high Young's modulus and surface conformity of 2D capping layers such as graphene and MoS2 substantially suppress surface fluctuations and thus dewetting...
July 19, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28721782/review-body-reaction
#8
Karen Chilver
Health secretary Jeremy Hunt has pledged to listen to what the pay review body (RB) has to say about the pay cap for nurses. That's all very well, but it is worth remembering that he voted against scrapping the cap in a Commons vote in June. So we won't be holding our breaths for a change of heart.
July 19, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28721574/operant-discrimination-of-relative-frequency-ratios-in-black-capped-chickadee-song
#9
Sean P Roach, Daniel J Mennill, Leslie S Phillmore
The two-note fee bee song of the black-capped chickadee (Poecile atricapillus) is sung at many different absolute frequencies, but the relative frequencies, or "pitch ratios", between the start and end of the fee note (glissando) and the fee and the bee notes (inter-note interval) are preserved with each pitch-shift. Ability to perceive these ratios and their relative salience varies with sex of the bird and setting: while both sexes appear to perceive changes in the inter-note interval, males appear to attend to the glissando in the field, and females appear to attend to both ratios...
July 18, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28720538/direct-compaction-an-update-of-materials-trouble-shooting-and-application
#10
REVIEW
Zhe Li, LiJie Zhao, Xiao Lin, Lan Shen, Yi Feng
Direct compaction (DC) is the preferred choice for tablet manufacturing; however, only less than 20% of active pharmaceutical ingredients could be compacted via DC as its high requirement for functional properties of materials. Materials with improper functionalities could lead to serious troubles during DC manufacturing, such as content non-uniformity, sticking, and capping, all of which profoundly affect the properties of final products and, thus, severely restrict the practical application of DC. With undoubted importance, these seem to be unexpectedly ignored by reviewers but not researchers in terms of many original research articles published recently...
July 15, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28719862/green-biosynthesis-of-silver-nanoparticles-using-leaves-extract-of-artemisia-vulgaris-and-their-potential-biomedical-applications
#11
Tahir Rasheed, Muhammad Bilal, Hafiz M N Iqbal, Chuanlong Li
Biosynthesis of nanoparticles from plant extracts is receiving enormous interest due to their abundant availability and a broad spectrum of bioactive reducing metabolites. In this study, the reducing potential of Artemisia vulgaris leaves extract (AVLE) was investigated for synthesizing silver nanoparticles without the addition of any external reducing or capping agent. The appearance of blackish brown color evidenced the complete synthesis of nanoparticles. The synthesized silver nanoparticles were characterized by UV-vis spectroscopy, scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscope (TEM), atomic force microscopy (AFM) and Fourier transforms infrared spectroscopy (FT-IR) analysis...
July 8, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28719861/stabilized-cationic-dipeptide-capped-gold-silver-nanohybrids-towards-enhanced-antibacterial-and-antifungal-efficacy
#12
Manish Bajaj, Satish K Pandey, Tamanna Nain, Surinder K Brar, Prabhjot Singh, Shivakanksha Singh, Nishima Wangoo, Rohit K Sharma
The nanoparticles of silver/gold and cationic peptides have been recognized as potent antimicrobials for long, but their combined effect has so far not been explored. The present study reports the green synthesis of short cationic dipeptide stabilized AuNPs/AgNPs based nanohybrid materials. It thoroughly investigates the effect of conjugation of short cationic peptides on the antimicrobial properties of metallic nanoparticles. In the context of the antimicrobial evaluation of synthesized nanoconjugates, it was observed that peptide capped AgNPs exhibited higher antimicrobial activity as compared to peptide capped AuNPs as well as native peptides and unconjugated metallic nanoparticles...
July 9, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28719145/preparation-of-carbon-dot-based-ratiometric-fluorescent-probes-for-cellular-imaging-from-curcuma-longa
#13
Zihnil Adha Islamy Mazrad, Eun Bi Kang, Insik In, Sung Young Park
This work derived biocompatible and stable probes based on fluorescent nanoparticles (FNPs) from a natural source, Curcuma longa. The multi-color fluorescence emissions from carbonized Curcuma longa (C-FNPs) obtained through defined dehydration conditions are soluble in water and have a small particle size (~17 nm). The surface passivation with polyethylene glycol (PEG) capped with amine groups in FNPs (P-FNPs) generated a probe with a higher quantum yield and longer fluorescence lifetime than obtained with C-FNPs...
July 18, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28718825/olive-mill-waste-enhances-%C3%AE-glucan-content-in-the-edible-mushroom-pleurotus-eryngii
#14
Sharon Avni, Nirit Ezove, Hilla Hanani, Itamar Yadid, Michal Karpovsky, Hilla Hayby, Ofer Gover, Yitzhak Hadar, Betty Schwartz, Ofer Danay
Mushroom polysaccharides are edible polymers that have numerous reported biological functions; the most common effects are attributed to β-glucans. In recent years, it became apparent that the less abundant α-glucans also possess potent effects in various health conditions. Here we explore several Pleurotus species for their total, β and α-glucan content. Pleurotus eryngii was found to have the highest total glucan concentrations and the highest α-glucans proportion. We also found that the stalks (stipe) of the fruit body contained higher glucan content then the caps (pileus)...
July 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28717512/trauma-related-emotions-and-radical-acceptance-in-dialectical-behavior-therapy-for-posttraumatic-stress-disorder-after-childhood-sexual-abuse
#15
Nora Görg, Kathlen Priebe, Jan R Böhnke, Regina Steil, Anne S Dyer, Nikolaus Kleindienst
BACKGROUND: Posttraumatic Stress Disorder (PTSD) related to childhood sexual abuse (CSA) is often associated with a wide range of trauma-related aversive emotions such as fear, disgust, sadness, shame, guilt, and anger. Intense experience of aversive emotions in particular has been linked to higher psychopathology in trauma survivors. Most established psychosocial treatments aim to reduce avoidance of trauma-related memories and associated emotions. Interventions based on Dialectical Behavior Therapy (DBT) also foster radical acceptance of the traumatic event...
2017: Borderline Personality Disorder and Emotion Dysregulation
https://www.readbyqxmd.com/read/28717250/plk1-phosphorylation-of-cap-h2-triggers-chromosome-condensation-by-condensin-ii-at-the-early-phase-of-mitosis
#16
Yuya Kagami, Masaya Ono, Kiyotsugu Yoshida
Condensin complexes play crucial roles in chromosome condensation that is a fundamental process to establish the "rod-like" shape of chromosome structure in mitosis. Failure of the chromosome assembly causes chromosome segregation errors and subsequent genomic instability. However, a molecular mechanism that controls condensin function for the chromosomal organization has not been fully understood. Here, we show that the abundance of CAP-H2, one of the condensin II subunits, is fluctuated during the cell cycle in accordance with Plk1 kinase activity...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716734/crystal-structure-analysis-of-3-6-anhydro-l-galactonate-cycloisomerase-suggests-emergence-of-novel-substrate-specificity-in-the-enolase-superfamily
#17
Saeyoung Lee, Kyoung Heon Kim, Hye-Yeon Kim, In-Geol Choi
3,6-Anydro-l-galatonate cycloisomerase (ACI) catalyzes the cycloisomerization of a 3,6-anhydro-l-galactonic acid (AHGA) known as a novel metabolite in agarolytic bacteria. Here, we present 3-D structures of ACI from Vibrio sp. strain EJY3 (VejACI) in native and mutant forms at 2.2 Å and 2.6 Å resolutions, respectively. The enzyme belongs to the mandelate racemase subgroup of the enolase superfamily catalyzing common β-elimination reactions by α-carbon deprotonation of substrates. The structure of VejACI revealed a notable 20s loop region in the capping domain, which can be a highly conserved structural motif in ACI homologs of agar metabolism...
July 14, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28716433/unmyelinated-peripheral-nerves-can-be-stimulated-in%C3%A2-vitro-using-pulsed-ultrasound
#18
Christopher J Wright, Seyyed R Haqshenas, John Rothwell, Nader Saffari
Appreciation for the medical and research potential of ultrasound neuromodulation is growing rapidly, with potential applications in non-invasive treatment of neurodegenerative disease and functional brain mapping spurring recent progress. However, little progress has been made in our understanding of the ultrasound-tissue interaction. The current study tackles this issue by measuring compound action potentials (CAPs) from an ex vivo crab walking leg nerve bundle and analysing the acoustic nature of successful stimuli using a passive cavitation detector (PCD)...
July 14, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28715860/hemoglobin-bioconjugates-with-surface-protected-gold-nanoparticles-in-aqueous-media-the-stability-depends-on-solution-ph-and-protein-properties
#19
Rafael Del Caño, Lucia Mateus, Guadalupe Sánchez-Obrero, José Manuel Sevilla, Rafael Madueño, Manuel Blázquez, Teresa Pineda
The identification of the factors that dictate the formation and physicochemical properties of protein-nanomaterial bioconjugates are important to understand their behavior in biological systems. The present work deals with the formation and characterization of bioconjugates made of the protein hemoglobin (Hb) and gold nanoparticles (AuNP) capped with three different molecular layers (citrate anions (c), 6-mercaptopurine (MP) and ω-mercaptoundecanoic acid (MUA)). The main focus is on the behavior of the bioconjugates in aqueous buffered solutions in a wide pH range...
July 5, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28715217/angular-dependence-of-strong-field-ionization-of-ch3x-x-f-cl-br-i-using-time-dependent-configuration-interaction-with-an-absorbing-potential
#20
Paul Hoerner, H Bernhard Schlegel
Methyl halides have been used to test basis set effects on simulations of strong field ionization using time dependent configuration interaction with an absorbing potential (TDCIS-CAP). Standard atom centered basis sets need to be augmented by several sets of diffuse functions on each atom so that the wavefunction in the strong field can interact with the absorbing potential used to model ionization. An absorbing basis of 3 s functions, 2 p functions, 3 d functions and 1 f function is sufficient for CH3F. Large absorbing basis sets with 4 s functions, 3 or 4 p functions, 4 or 5 d functions and 2 f functions are recommended for the heavier halogens...
July 17, 2017: Journal of Physical Chemistry. A
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