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https://www.readbyqxmd.com/read/28549367/-transfer-of-the-long-head-of-triceps-for-elbow-flexion-in-braquial-plexus-sequelae
#1
E Vergara-Amador, F Vela-Rodríguez
The independent neurovascular anatomy of the long head of the triceps brachii and its suitability as a free muscle transfer have been extensively studied. Instead muscle transposition of the long head of the triceps brachii to enhance elbow flexion has been rarely described. We describe in this paper two cases of injury of brachial plexus sequel in which transposition was performed only on the long head of the triceps. The elbow flexion was improved, the extension was preserved.
November 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28549364/-an-option-to-restore-ulnar-intrinsic-muscles-when-the-anterior-interosseus-nerve-is-not-available
#2
G A González-Trevizo
BACKGROUND: The peripheral nerve injuries are devastating for the patient; the classic reconstructive options are the Nerve Graft and Tendon Transfers. Lately the Nerve Transfers are being used more and more broadly. They are an excellent option on early injuries and when the motor plate is still alive. The advantages are numerous, because the functional recovery is much better. METHODS AND RESULTS: We report the case of a patient who sustained and injury on the median and ulnar nerve, so the EDQ and ECU branches were used to restore the Ulnar Intrinsic Function...
November 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28549325/graphene-oxide-in-the-water-environment-could-affect-tetracycline-antibiotic-resistance
#3
Mei-Ting Guo, Guo-Sheng Zhang
In recent years, the influence of new materials like nanoparticles in the water environment on biological substances has been widely studied. Antibiotic resistance genes (ARGs) represent a new type of pollutant in the environment. Graphene oxide (GO), as a nano material, because of its unique structure, may have an impact on antibiotic resistance bacteria (ARB) and ARGs; however the research in this area is rarely reported. Therefore, this study mainly investigated the effects of GO on bacterial antibiotic resistance...
May 3, 2017: Chemosphere
https://www.readbyqxmd.com/read/28549303/end-of-life-eol-mobile-phone-management-in-hong-kong-households
#4
Wen-Jing Deng, John P Giesy, C S So, Hai-Long Zheng
A questionnaire survey and interviews were conducted in households and end-of-life (EoL) mobile phone business centres in Hong Kong. Widespread Internet use, combined with the rapid evolution of modern social networks, has resulted in the more rapid obsolescence of mobile phones, and thus a tremendous increase in the number of obsolete phones. In 2013, the volume of EoL mobile phones generated in Hong Kong totalled at least 330 tonnes, and the amount is rising. Approximately 80% of electronic waste is exported to Africa and developing countries such as mainland China or Pakistan for recycling...
May 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28549267/the-construction-of-a-novel-nucleic-acids-detection-microplatform-based-on-the-nset-for-one-step-detecting-tk1-dna-and-microrna-21
#5
Jian Zhang, Qian Zhao, Yudong Wu, Bo Zhang, Weipan Peng, Jiafang Piao, Yurui Zhou, Weichen Gao, Xiaoqun Gong, Jin Chang
Microbeads-based microchip technology has become the potential for a new generation of nucleic acids detection in a high-throughput and sensitive manner. However the specificity and operational complexity limit the microchip applied in nucleic acids detection. Herein, in this work, we designed a kind of gold-nanoparticles coated polystyrene microbeads as microplatform conjugating with the molecular beacons as probes. Due to the nanoparticle surface energy transfer of gold-nanoparticles, the fluorescence of dye on one end of molecular beacons was effectively quenched...
May 23, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28549255/determination-of-the-profile-of-do-and-its-mass-transferring-coefficient-in-a-biofilm-reactor-packed-with-semi-suspended-bio-carriers
#6
Bing Tang, Haoliang Song, Liying Bin, Shaosong Huang, Wenxiang Zhang, Fenglian Fu, Yiliang Zhao, Qianyu Chen
The work aims at illustrating the profile of DO and its mass transferring process in a biofilm reactor packed with a novel semi-suspended bio-carrier, and further revealing the main factors that influence the mass transferring coefficient of DO within the biofilm. Results showed that the biofilm was very easy to attach and grow on the semi-suspended bio-carrier, which obviously changed the DO profile inside and outside the biofilm. The semi-suspended bio-carrier caused three different mass transfer zones occurring in the bioreactor, including the zones of bulk solution, boundary layer and biofilm, in which, the boundary layer zone had an obvious higher mass transfer resistance...
May 16, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28549213/binding-of-copper-and-cisplatin-to-atox1-is-mediated-by-glutathione-through-the-formation-of-metal-sulfur-clusters
#7
Nataliya V Dolgova, Corey Yu, John P Cvitkovic, Miroslav Hodak, Kurt Nienaber, Kelly Lynn Summers, Julien Cotelesage, Jerzy Bernholc, George A Kaminski, Ingrid J Pickering, Graham N George, Oleg Y Dmitriev
Copper is an essential nutrient required for many biological processes involved in primary metabolism, but free cop-per is toxic due to its ability to catalyze formation of free radicals. To prevent toxic effects, in the cell copper is bound to proteins and low molecular weight compounds, such as glutathione, at all times. The widely used chemotherapy agent cisplatin is known to bind to copper-transporting proteins, including copper chaperone Atox1. Cisplatin interac-tions with Atox1 and other copper transporters are linked to cancer resistance to platinum-based chemotherapy...
May 26, 2017: Biochemistry
https://www.readbyqxmd.com/read/28549157/exposure-to-acute-psychosocial-stress-disrupts-the-luteinizing-hormone-surge-independent-of-estrous-cycle-alterations-in-female-mice
#8
Elizabeth R Wagenmaker, Suzanne M Moenter
The disruptive effects of severe stress on reproductive function are well documented, but surprisingly few studies exist that demonstrate milder psychosocial stressors interfere with the ovarian cycle in females. We hypothesized repeated application of psychosocial stress would disrupt estrous cycles in mice. Mice were transferred to a new cage, transported to a new room and restrained (2h) for 21 consecutive days. Contrary to our hypothesis, this paradigm did not affect estrous cycles. We next tested the hypothesis that a single exposure to mild stress disrupts a specific aspect of the cycle: the proestrous luteinizing hormone (LH) surge...
May 25, 2017: Endocrinology
https://www.readbyqxmd.com/read/28549099/impact-of-resident-and-fellow-changeovers-on-patient-outcomes-a-nationwide-cross-sectional-study
#9
Jean-David Zeitoun, Jeanne Reboul-Marty, Jérémie H Lefèvre
Findings regarding the association of cohort changeovers with patient outcomes are mixed. We sought to examine the association of resident and fellow changeovers with a comprehensive set of indicators. We performed a cross-sectional comparative study including all French teaching and non-teaching hospitals. All-cause mortality and length of stay were assessed. Focused analysis for three medical conditions (myocardial infarction, intestinal hemorrhage, stroke) and three surgical procedures (colorectal, vascular and spine surgery) was performed regarding other quality and efficiency indicators (readmissions, intensive care unit admission, transfers)...
May 25, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28549044/a-modified-suction-assisted-technique-of-transfer-of-diced-cartilage-graft-to-carrier-material-and-outcome-of-direct-injection-of-unwrapped-diced-cartilage-in-rhinoplasty
#10
Muhammad Mustehsan Bashir, Muhammad Sohail, Farid Ahmad Khan, Sadia Nosheen Jan, Hamid Hussain Ansari, Umer Nazir, Zohaib Hidayat
OBJECTIVE: To describe a modified suction-assisted technique (MSAT) of transfer of diced cartilage (DC) graft to a carrier material and to determine the clinical outcome of direct injection of unwrapped diced cartilage (UDC) in rhinoplasty. PLACE AND DURATION OF STUDY: Department of Plastic Surgery, KEMU, Mayo Hospital, Lahore from February 2011 to January 2015 METHODS:: Forty-seven patients of both genders with types 0 to 3 saddle nose deformity were included. Patients with types 4 and 5 saddle nose deformity, diabetes, hypertension, hepatic or renal disorders were excluded...
May 25, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28548949/dietary-grape-seed-proanthocyanidins-inactivate-regulatory-t-cells-by-promoting-ner-dependent-dna-repair-in-dendritic-cells-in-uvb-exposed-skin
#11
Mudit Vaid, Ram Prasad, Tripti Singh, Santosh K Katiyar
Ultraviolet B (UVB) radiation induces regulatory T cells (Treg cells) and depletion of these Treg cells alleviates immunosuppression and inhibits photocarcinogenesis in mice. Here, we determined the effects of dietary grape seed proanthocyanidins (GSPs) on the development and activity of UVB-induced Treg cells. C3H/HeN mice fed a GSPs (0.5%, w/w)-supplemented or control diet were exposed to UVB (150 mJ/cm2) radiation, sensitized to 2,4-dinitrofluorobenzene (DNFB) and sacrificed 5 days later. FACS analysis indicated that dietary GSPs decrease the numbers of UVB-induced Treg cells...
May 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28548908/effect-of-end-segment-on-physicochemical-properties-and-platelet-compatibility-of-poly-propylene-glycol-initiated-poly-methyl-methacrylate
#12
Chihiro Fukuda, Chie Yahata, Takuya Kinoshita, Takafumi Watanabe, Hideo Tsukamoto, Akira Mochizuki
It is well known that polyether-based copolymers have good blood compatibility, although many mechanisms have been proposed to explain their favorable performance. Our objective in carrying out the present study was to obtain a better understanding of the effect of the (poly)ether segment on blood compatibility. Therefore, we synthesized poly(propylene glycol) (PPG)-based initiators for atom transfer polymerization, where the number of propylene glycol (PG) units in the PPG (Pn(PG) was varied from 1 to 94. Methyl methacrylate (MMA) was polymerized using the initiators, resulting in the formation of polyMMAs with a PG-based ether part at the polymer terminal...
May 26, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28548841/light-absorption-by-brown-carbon-in-the-southeastern-united-states-is-ph-dependent
#13
Sabrina M Phillips, Aleia D Bellcross, Geoffrey D Smith
Light-absorbing organic material, or "brown carbon" (BrC), can significantly influence the effect that aerosols have on climate. Here, we investigate how changing pH affects the absorption spectra of water-soluble BrC from ambient particulate matter smaller than 2.5 μm collected in Athens, Georgia, in the spring and fall of 2016, including samples from nearby wildfires. We find that absorption increases 10% per pH unit from pH 2 to pH 12 with a broad, featureless tail at visible wavelengths, where the largest fractional increase is also observed...
May 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28548839/structural-distortions-and-charge-density-waves-in-iodine-chains-encapsulated-inside-carbon-nanotubes
#14
Hannu-Pekka Komsa, Ryosuke Senga, Kazutomo Suenaga, Arkady V Krasheninnikov
Atomic chains are perfect systems for getting fundamental insights into the electron dynamics and coupling between the electronic and ionic degrees of freedom in one dimensional metals. Depending on the band filling, they can exhibit Peierls instabilities (or charge density waves), where equally spaced chain of atoms with partially filled band is inherently unstable, exhibiting spontaneous distortion of the lattice that further leads to metal-insulator transition in the system. Here, using high-resolution scanning transmission electron microscopy, we directly image the atomic structures of a chain of iodine atoms confined inside carbon nanotubes...
May 26, 2017: Nano Letters
https://www.readbyqxmd.com/read/28548829/fused-pentagon-configuration-dependent-electron-transfer-of-monotitanium-encapsulated-fullerenes
#15
Jing-Shuang Dang, Wei-Wei Wang, Jia-Jia Zheng, Xiang Zhao, Shigeru Nagase
We introduce monotitanium-based endohedral metallofullerenes (EMFs) using density functional theory calculations. Isomeric C64 fullerenes are initially employed as hosts, and Ti@C64 species show novel features on the electronic structures. Energetically, the preference of titanium residing on triple-fused-pentagon subunits is proposed in theory. More importantly, different from current knowledge on mono-EMFs, electron transfer between titanium and carbon cages is not unified but is essentially dependent on the pentagon distribution of the binding sites, giving rise to variations of the cationic titanium of Ti@C64...
May 26, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28548819/tuning-the-properties-of-polymer-capsules-for-cellular-interactions
#16
Huanli Sun, Jiwei Cui, Yi Ju, Xi Chen, Edgar H H Wong, Jenny Tran, Greg G Qiao, Frank Caruso
Particle-cell interactions are governed by, among other factors, the composition and surface properties of the particles. Herein, we report the preparation of various polymer capsules with different compositions and properties via atom transfer radical polymerization mediated continuous assembly of polymers (CAPATRP), where the cellular interactions of these capsules, particularly fouling and specific targeting, are examined by flow cytometry and deconvolution microscopy. Acrylated eight-arm poly(ethylene glycol) (8-PEG) and poly(N-(2-hydroxypropyl)-methacrylamide) (PHPMA) as well as methacrylated hyaluronic acid (HA), poly(glutamic acid) (PGA), and poly(methacrylic acid) (PMA) are used as macro-cross-linkers to obtain a range of polymer capsules with different compositions (PEG, PHPMA, HA, PGA, and PMA)...
May 26, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28548670/oxocomplexes-of-u-vi-with-8-hydroxyquinoline-5-sulfonate-in-solution-structural-studies-and-photophysical-behaviour
#17
M Luísa Ramos, Licínia L G Justino, Rui Barata, Telma Costa, Bernardo A Nogueira, Rui Fausto, Hugh D Burrows
Multinuclear ((1)H and (13)C) NMR, and Raman spectroscopy, combined with DFT calculations, provide detailed information on the complexation between U(vi) oxoions and 8-hydroxyquinoline-5-sulfonate (8-HQS) in aqueous solution. Over the concentration region studied, U(vi) oxoions (uranyl ions) form one dominant complex with 8-HQS in water in the pH range 3-6, a mononuclear 1 : 2 (metal : ligand) complex, with the metal centre (UO2(2+)) coordinated to two 8-HQS ligands, together with one or more water molecules...
May 26, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28548664/mesoporous-mn2o3-reduced-graphene-oxide-rgo-composite-with-enhanced-electrochemical-performance-for-li-ion-battery
#18
Harsharaj S Jadhav, Gaurav M Thorat, Bharat B Kale, Jeong Gil Seo
Transition metal oxides are the most promising candidates in low-cost and eco-friendly energy storage/conversion applications. Herein, bare Mn2O3 and a Mn2O3/reduced graphene oxide (rGO) composite have been synthesized by a facile chemical co-precipitation and subsequent annealing procedure. The synthesized Mn2O3/rGO composite exhibits a porous microcube structure formed with several interconnected particles. The porous Mn2O3/rGO composite, with high surface area and increased conductivity, facilited the charge transfer to enhance the overall electrochemical performance when applied as an anode material in Li-ion batteries...
May 26, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28548657/the-endobacterium-of-an-arbuscular-mycorrhizal-fungus-modulates-the-expression-of-its-toxin-antitoxin-systems-during-the-life-cycle-of-its-host
#19
Alessandra Salvioli di Fossalunga, Justine Lipuma, Francesco Venice, Laurence Dupont, Paola Bonfante
Arbuscular mycorrhizal fungi (AMF) are widespread root symbionts that perform important ecological services, such as improving plant nutrient and water acquisition. Some AMF from the Gigasporaceae family host a population of endobacteria, Candidatus Glomeribacter gigasporarum (Cagg). The analysis of the Cagg genome identified six putative toxin-antitoxin modules (TAs), consisting of pairs of stable toxins and unstable antitoxins that affect diverse physiological functions. Sequence analysis suggested that these TA modules were acquired by horizontal transfer...
May 26, 2017: ISME Journal
https://www.readbyqxmd.com/read/28548531/hunting-the-gluon-orbital-angular-momentum-at-the-electron-ion-collider
#20
Xiangdong Ji, Feng Yuan, Yong Zhao
Applying the connection between the parton Wigner distribution and orbital angular momentum (OAM), we investigate the probe of the gluon OAM in hard scattering processes at the planned electron-ion collider. We show that the single longitudinal target-spin asymmetry in the hard diffractive dijet production is very sensitive to the gluon OAM distribution. The associated spin asymmetry leads to a characteristic azimuthal angular correlation of sin(ϕ_{q}-ϕ_{Δ}), where ϕ_{Δ} and ϕ_{q} are the azimuthal angles of the proton momentum transfer and the relative transverse momentum between the quark-antiquark pair...
May 12, 2017: Physical Review Letters
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