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https://www.readbyqxmd.com/read/29351703/a-wormy-surprise-ercp-for-intrabiliary-drainage-of-a-hydatid-cyst
#1
Shawn L Shah, Ming-Ming Xu, Enad Dawod, Karim Halazun, Reem Z Sharaiha
No abstract text is available yet for this article.
January 19, 2018: Endoscopy
https://www.readbyqxmd.com/read/29351614/a-membrane-g-protein-coupled-estrogen-receptor-is-necessary-but-not-sufficient-for-sex-differences-in-zebra-finch-auditory-coding
#2
Amanda A Krentzel, Matheus Macedo-Lima, Maaya Z Ikeda, Luke Remage-Healey
Estradiol acts as a neuromodulator in brain regions important for cognition and sensory processing. Estradiol also shapes brain sex differences, but rarely have these concepts been considered simultaneously. In male and female songbirds, estradiol rapidly increases within the auditory forebrain during song exposure and enhances local auditory processing. We tested whether GPER1, a membrane bound estrogen receptor, is necessary and sufficient for neuroestrogen regulation of forebrain auditory processing in male and female zebra finches (Taeniopygia guttata)...
January 17, 2018: Endocrinology
https://www.readbyqxmd.com/read/29351554/field-data-based-mathematical-modeling-by-bode-equations-and-vector-fitting-algorithm-for-renewable-energy-applications
#3
A H Sabry, W Z W Hasan, M Z A Ab Kadir, M A M Radzi, S Shafie
The power system always has several variations in its profile due to random load changes or environmental effects such as device switching effects when generating further transients. Thus, an accurate mathematical model is important because most system parameters vary with time. Curve modeling of power generation is a significant tool for evaluating system performance, monitoring and forecasting. Several numerical techniques compete to fit the curves of empirical data such as wind, solar, and demand power rates...
2018: PloS One
https://www.readbyqxmd.com/read/29351372/a-preclinical-population-pharmacokinetic-model-for-anti-cd20-cd3-t-cell-dependent-bispecific-antibodies
#4
Gregory Z Ferl, Arthur Reyes, Liping L Sun, Melissa Cheu, Amy Oldendorp, Saroja Ramanujan, Eric G Stefanich
CD20 is a cell-surface receptor expressed by healthy and neoplastic B cells and is a well-established target for biologics used to treat B-cell malignancies. Pharmacokinetic (PK) and pharmacodynamic (PD) data for the anti-CD20/CD3 T-cell-dependent bispecific antibody BTCT4465A were collected in transgenic mouse and nonhuman primate (NHP) studies. Pronounced nonlinearity in drug elimination was observed in the murine studies, and time-varying, nonlinear PK was observed in NHPs, where three empirical drug elimination terms were identified using a mixed-effects modeling approach: i) a constant nonsaturable linear clearance term (7 mL/day/kg); ii) a rapidly decaying time-varying, linear clearance term (t½  = 1...
January 19, 2018: Clinical and Translational Science
https://www.readbyqxmd.com/read/29351356/epha2-ephrin-a1-mediate-corneal-epithelial-cell-compartmentalization-via-adam10-regulation-of-egfr-signaling
#5
Nihal Kaplan, Rosa Ventrella, Han Peng, Sonali Pal-Ghosh, Constadina Arvanitis, Joshua Z Rappoport, Brian J Mitchell, Mary Ann Stepp, Robert M Lavker, Spiro Getsios
Purpose: Progenitor cells of the limbal epithelium reside in a discrete area peripheral to the more differentiated corneal epithelium and maintain tissue homeostasis. What regulates the limbal-corneal epithelial boundary is a major unanswered question. Ephrin-A1 ligand is enriched in the limbal epithelium, whereas EphA2 receptor is concentrated in the corneal epithelium. This reciprocal pattern led us to assess the role of ephrin-A1 and EphA2 in limbal-corneal epithelial boundary organization...
January 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29351263/twenty-nine-new-limonoids-with-skeletal-diversity-from-the-mangrove-plant-xylocarpus-moluccensis
#6
Jianzhi Zhang, Wanshan Li, Yiguo Dai, Li Shen, Jun Wu
Twenty-nine new limonoids-named xylomolins A₁-A₇, B₁-B₂, C₁-C₂, D-F, G₁-G₅, H-I, J₁-J₂, K₁-K₂, L₁-L₂, and M-N, were isolated from the seeds of the mangrove plant, Xylocarpus moluccensis. Compounds 1-13 are mexicanolides with one double bond or two conjugated double bonds, while 14 belongs to a small group of mexicanolides with an oxygen bridge between C1 and C8. Compounds 15-19 are khayanolides containing a Δ8,14 double bond, whereas 20 and 21 are rare khayanolides containing a Δ14,15 double bond and Δ8,9, Δ14,15 conjugated double bonds, respectively...
January 19, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29351249/utilizing-dietary-micronutrient-ratios-in-nutritional-research-may-be-more-informative-than-focusing-on-single-nutrients
#7
Owen J Kelly, Jennifer C Gilman, Jasminka Z Ilich
The 2015 US dietary guidelines advise the importance of good dietary patterns for health, which includes all nutrients. Micronutrients are rarely, if ever, consumed separately, they are not tissue specific in their actions and at the molecular level they are multitaskers. Metabolism functions within a seemingly random cellular milieu however ratios are important, for example, the ratio of adenosine triphosphate to adenosine monophosphate, or oxidized to reduced glutathione. Health status is determined by simple ratios, such as the waist hip ratio, or ratio of fat mass to lean mass...
January 19, 2018: Nutrients
https://www.readbyqxmd.com/read/29351221/mechanical-structural-design-of-a-mems-based-piezoresistive-accelerometer-for-head-injuries-monitoring-a-computational-analysis-by-increments-of-the-sensor-mass-moment-of-inertia
#8
Marco Messina, James Njuguna, Chrysovalantis Palas
This work focuses on the proof-mass mechanical structural design improvement of a tri-axial piezoresistive accelerometer specifically designed for head injuries monitoring where medium-G impacts are common; for example, in sports such as racing cars or American Football. The device requires the highest sensitivity achievable with a single proof-mass approach, and a very low error (<1%) as the accuracy for these types of applications is paramount. The optimization method differs from previous work as it is based on the progressive increment of the sensor proof-mass mass moment of inertia (MMI) in all three axes...
January 19, 2018: Sensors
https://www.readbyqxmd.com/read/29350959/under-the-tunneling-barrier-recollisions-in-strong-field-ionization
#9
Michael Klaiber, Karen Z Hatsagortsyan, Christoph H Keitel
A new pathway of strong-laser-field-induced ionization of an atom is identified which is based on recollisions under the tunneling barrier. With an amended strong-field approximation, the interference of the direct and the under-the-barrier recolliding quantum orbits are shown to induce a measurable shift of the peak of the photoelectron momentum distribution. The scaling of the momentum shift is derived relating the momentum shift to the tunneling delay time according to the Wigner concept. This allows us to extend the Wigner concept for the quasistatic tunneling time delay into the nonadiabatic domain...
January 5, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29350954/invariance-of-topological-indices-under-hilbert-space-truncation
#10
Zhoushen Huang, W Zhu, Daniel P Arovas, Jian-Xin Zhu, Alexander V Balatsky
We show that the topological index of a wave function, computed in the space of twisted boundary phases, is preserved under Hilbert space truncation, provided the truncated state remains normalizable. If truncation affects the boundary condition of the resulting state, the invariant index may acquire a different physical interpretation. If the index is symmetry protected, the truncation should preserve the protecting symmetry. We discuss implications of this invariance using paradigmatic integer and fractional Chern insulators, Z_{2} topological insulators, and spin-1 Affleck-Kennedy-Lieb-Tasaki and Heisenberg chains, as well as its relation with the notion of bulk entanglement...
January 5, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29350947/4f-crystal-field-ground-state-of-the-strongly-correlated-topological-insulator-smb_-6
#11
M Sundermann, H Yavaş, K Chen, D J Kim, Z Fisk, D Kasinathan, M W Haverkort, P Thalmeier, A Severing, L H Tjeng
We investigated the crystal-electric field ground state of the 4f manifold in the strongly correlated topological insulator SmB_{6} using core-level nonresonant inelastic x-ray scattering. The directional dependence of the scattering function that arises from higher multipole transitions establishes unambiguously that the Γ_{8} quartet state of the Sm f^{5}  J=5/2 configuration governs the ground-state symmetry and, hence, the topological properties of SmB_{6}. Our findings contradict the results of density functional calculations reported so far...
January 5, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29350940/experimental-verification-of-a-jarzynski-related-information-theoretic-equality-by-a-single-trapped-ion
#12
T P Xiong, L L Yan, F Zhou, K Rehan, D F Liang, L Chen, W L Yang, Z H Ma, M Feng, V Vedral
Most nonequilibrium processes in thermodynamics are quantified only by inequalities; however, the Jarzynski relation presents a remarkably simple and general equality relating nonequilibrium quantities with the equilibrium free energy, and this equality holds in both the classical and quantum regimes. We report a single-spin test and confirmation of the Jarzynski relation in the quantum regime using a single ultracold ^{40}Ca^{+} ion trapped in a harmonic potential, based on a general information-theoretic equality for a temporal evolution of the system sandwiched between two projective measurements...
January 5, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29350932/a-di-nuclear-ag-i-complex-designed-for-highly-efficient-thermally-activated-delayed-fluorescence
#13
Marsel Z Shafikov, Alfiya Suleymanova, Alexander Schinabeck, Hartmut Yersin
The di-nuclear Ag(I) complex has been designed to show thermally activated delayed fluorescence (TADF) оf high efficiency. Strongly electron-donating terminal ligands are introduced to destabilize the d-orbitals of the Ag+ ions. Consequently, the orbitals distinctly contribute to the HOMO, whereas the LUMO is localized on the bridging ligand. This ensures charge transfer character of the lowest excited singlet S1 and triplet T1 state. Accordingly, a small energy gap ΔE(S1─T1) is obtained, being essential for TADF behavior...
January 19, 2018: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/29350910/highly-asymmetric-phase-behaviors-of-polyhedral-oligomeric-silsesquioxanes-based-multi-headed-giant-surfactants
#14
Mingjun Huang, Kan Yue, Jiahao Huang, Chang Liu, Zhe Zhou, Jing Wang, Kan Wu, Wenpeng Shan, An-Chang Shi, Stephen Z D Cheng
This work reports the molecular design, synthesis, and systematic study on the bulk self-assembly behaviors of three series of polyhedral oligomeric silsesquioxanes (POSS)-based multi-headed giant surfactants XDPOSS-PSn (X = 2, 3 and 4), which are composed of two, three or four hydrophilic hydroxyl-group functionalized DPOSS cages attached via one junction point to a hydrophobic polystyrene (PS) chain. These series of hybrid polymeric amphiphiles with precisely defined chemical structure and controllable molecular architecture are synthesized by the sequential usage of "click" reactions...
January 19, 2018: ACS Nano
https://www.readbyqxmd.com/read/29350831/randomized-trial-on-extended-versus-modified-right-lobe-grafts-in-live-donor-liver-transplantation
#15
Christi Titus Varghese, Viju Kumar Bharathan, Unnikrishnan Gopalakrishnan, Dinesh Balakrishnan, Ramachandran N Menon, Othiyil Vayoth Sudheer, Puneet Dhar, Sudhindran Surendran
Despite advances in the practice of live donor liver transplantation (LDLT), the optimum surgical approach with respect to the middle hepatic vein (MHV) in right lobe LDLT remains undefined. We designed a randomized trial to compare the early postoperative outcomes in recipients and donors between extended right lobe grafts (ERG: transection plane was maintained to the left of MHV, and division of MHV performed beyond the segment VIII vein) and modified right lobe grafts (MRG: transection plane was maintained to the right of MHV, the segment V and VIII drainage was reconstructed using a conduit of recipient portal vein)...
January 19, 2018: Liver Transplantation
https://www.readbyqxmd.com/read/29350593/the-natural-history-of-complete-spinal-cord-injury-a-pooled-analysis-of-1162-patients-and-a-meta-analysis-of-modern-data
#16
Najib E El Tecle, Nader S Dahdaleh, Mohamad Bydon, Wilson Z Ray, James C Torner, Patrick W Hitchon
OBJECTIVE The natural history of complete spinal cord injury (SCI) is poorly studied. The classically quoted rate of improvement or conversion for patients with American Spinal Injury Association (ASIA) grade A (ASIA A) injuries is 15%-20%; however, data supporting this rate are very limited. In this paper, the authors conducted a meta-analysis of modern data reporting on ASIA A patients and evaluated factors affecting the natural history of the disease. METHODS The authors conducted a systematic literature review of all randomized clinical trials (RCTs) and observational studies of patients with traumatic SCI...
January 19, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29350576/posterior-reversible-encephalopathy-syndrome-in-stroke-prone-spontaneously-hypertensive-rats-on-high-salt-diet
#17
Fanny Herisson, Iris Zhou, Jerome Mawet, E Du, Arnavaz H Barfejani, Tao Qin, Marilyn J Cipolla, Philip Z Sun, Natalia S Rost, Cenk Ayata
Stroke-prone spontaneously hypertensive rats (SHRSP) on high-salt diet are characterized by extremely high arterial pressures, and have been endorsed as a model for hypertensive small vessel disease and vascular cognitive impairment. However, rapidly developing malignant hypertension is a well-known cause of posterior reversible encephalopathy syndrome (PRES) in humans, associated with acute neurological deficits, seizures, vasogenic cerebral edema and microhemorrhages. In this study, we aimed to examine the overlap between human PRES and SHRSP on high-salt diet...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29350575/the-neural-substrates-of-improved-phonological-processing-following-successful-treatment-in-a-case-of-phonological-alexia-and-agraphia
#18
Andrew T DeMarco, Stephen M Wilson, Kindle Rising, Steven Z Rapcsak, Pélagie M Beeson
Phonological deficits are common in aphasia after left-hemisphere stroke, and can have significant functional consequences for spoken and written language. While many individuals improve through treatment, the neural substrates supporting improvements are poorly understood. We measured brain activation during pseudoword reading in an individual through two treatment phases. Improvements were associated with greater activation in residual left dorsal language regions and bilateral regions supporting attention and effort...
January 19, 2018: Neurocase
https://www.readbyqxmd.com/read/29350450/cross-sectional-and-longitudinal-analysis-of-nutritional-status-of-school-children-from-bumbire-island-united-republic-of-tanzania
#19
Ornella Comandini, Gabriele Carmignani, Alessandro Cipriano, Giovanni Carmignani, Deodatus Tiba, Elisabetta Marini
OBJECTIVE: To analyze the nutritional status of schoolchildren from Bumbire Island (Tanzania) from cross-sectional and longitudinal perspectives. METHODS: During 2014 and 2015, we collected anthropometric measurements in a sample of 437 schoolchildren (226 males, 211 females; 5-16 years). A sub-sample of 126 children were measured in both surveys. Socio-demographic data have been taken and dietary habits investigated. The accuracy of age data was checked. Malnutrition prevalence was calculated according to the WHO references and the z-score criteria...
January 19, 2018: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/29350376/an-unexpected-long-term-complication-of-genital-burn-in-a-child-secondary-cryptorchidism
#20
Mustafa Öksüz, Hasan Deliağa, Adem Topkara, Ömer Faruk Koçak
Genital and perineal burns are rare and challenging injuries with serious long-term complications. Involvement of the testes is a sign of severity. There is limited knowledge in the literature about the management of complications and testes involvement in genital and perineal burns. In this report, we present the case of an 8-year-old boy with secondary cryptorchidism due to burn contracture who was treated by increasing the scrotal volume by Z-plasties, skin graft, and orchidopexy.
January 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
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