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https://www.readbyqxmd.com/read/29352750/histomorphological-analysis-of-the-variability-of-the-human-skeleton-forensic-implications
#1
Marco Cummaudo, Annalisa Cappella, Miranda Biraghi, Caterina Raffone, Nicholas Màrquez-Grant, Cristina Cattaneo
One of the fundamental questions in forensic medicine and anthropology is whether or not a bone or bone fragment is human. Surprisingly at times for the extreme degradation of the bone (charred, old), DNA cannot be successfully performed and one must turn to other methods. Histological analysis at times can be proposed. However, the variability of a single human skeleton has never been tested. Forty-nine thin sections of long, flat, irregular and short bones were obtained from a well-preserved medieval adult human skeleton...
January 20, 2018: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29351618/maintenance-hormonal-therapy-after-treatment-with-medroxyprogesterone-acetate-for-patients-with-atypical-polypoid-adenomyoma
#2
Hidetaka Nomura, Yuko Sugiyama, Terumi Tanigawa, Maki Matoda, Sanshiro Okamoto, Kohei Omatsu, Hiroyuki Kanao, Kazuyoshi Kato, Kuniko Utsugi, Nobuhiro Takeshima
Background: As atypical polypoid adenomyoma (APA) has been reported to be a hormone-related tumor, we aimed to analyze the efficacy and safety of maintenance hormonal therapy after fertility-preserving treatment of these patients with medroxyprogesterone acetate (MPA). Methods: Data were retrospectively analyzed from patients with APA who were treated with a fertility-preserving regimen including MPA between October 2001 and December 2011. Eighteen patients were treated with MPA and 14 (77...
January 17, 2018: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29351580/maternal-nutrient-restriction-impairs-young-adult-offspring-ovarian-signaling-resulting-in-reproductive-dysfunction-and-follicle-loss
#3
K A Chan, P A Jazwiec, W Gohir, J J Petrik, D M Sloboda
Reproductive abnormalities are included as health complications in offspring exposed to poor prenatal nutrition. We have previously shown in a rodent model, that offspring born to nutrient restriction during pregnancy are born small, enter puberty early, and display characteristics of early ovarian aging as adults. The present study investigated whether key proteins involved in follicle recruitment and growth mediate ovarian follicle loss. Pregnant rats were randomized to: a standard diet throughout pregnancy and lactation (CON), or a calorie-restricted (50% of control) diet (UN) during pregnancy...
January 17, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29351554/field-data-based-mathematical-modeling-by-bode-equations-and-vector-fitting-algorithm-for-renewable-energy-applications
#4
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/29351329/radiocarbon-dating-uncertainty-and-the-reliability-of-the-pewma-method-of-time-series-analysis-for-research-on-long-term-human-environment-interaction
#5
W Christopher Carleton, David Campbell, Mark Collard
Statistical time-series analysis has the potential to improve our understanding of human-environment interaction in deep time. However, radiocarbon dating-the most common chronometric technique in archaeological and palaeoenvironmental research-creates challenges for established statistical methods. The methods assume that observations in a time-series are precisely dated, but this assumption is often violated when calibrated radiocarbon dates are used because they usually have highly irregular uncertainties...
2018: PloS One
https://www.readbyqxmd.com/read/29351068/a-new-species-of-aplectana-nematoda-cosmocercidae-in-goniurosaurus-bawanglingensis-squamata-eublepharidae-from-hainan-province-china
#6
Charles R Bursey, Stephen R Goldberg, L Lee Grismer
Aplectana hainanensis sp. nov. (Ascaridida, Cosmocercidae) from the intestines of Goniurosaurus bawanglingensis (Squamata, Eublepharidae) is described and illustrated. Aplectana hainanensis sp. nov. represents the 52nd species assigned to the genus and the 5th species reported from the Sino-Japanese region. It is easily separated from the 4 species previously reported from the region by the distribution pattern of male caudal papillae: A. macintoshii has an irregular pattern; A. hylae has no precloacal papillae; A...
March 26, 2018: Acta Parasitologica
https://www.readbyqxmd.com/read/29350919/pair-distribution-function-analysis-of-structural-disorder-by-nb5-inclusion-in-ceria-evidence-for-enhanced-oxygen-storage-capacity-from-under-coordinated-oxide
#7
Craig Hiley, Helen Y Playford, Janet Fisher, Noelia Cortes Felix, David Thompsett, Reza J Kashtiban, Richard I Walton
Partial substitution of Ce4+ by Nb5+ is possible in CeO2 by co-inclusion of Na+ to balance the charge, via hydrothermal synthesis in sodium hydroxide solution. Pair distribution function analysis using reverse Monte Carlo refinement reveals that the small pentavalent substituent resides in irregular coordination positions in an average fluorite lattice, displaced away from the ideal cubic coordination towards four oxygens. This results in under-coordinated oxygen, which explains significantly enhanced oxygen storage capacity of the materials of relevance to redox catalysis used in energy and environmental applications...
January 19, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29350713/hyponatremia-and-siadh-a-case-study-for-nursing-consideration
#8
Teri Tasler, Susan D Bruce
The leading cause of hyponatremia in patients with cancer is syndrome of inappropriate antidiuretic hormone secretion (SIADH); this oncologic emergency requires immediate intervention. Left untreated, it can result in increased mortality and morbidity. A sodium level less than 135 meq/L is an electrolyte irregularity and defined as hyponatremia. It is extremely critical that oncology nurses are knowledgeable and able to evaluate and determine when patients are in fluid and electrolyte crisis. Nurses should be aware of the specific cancers and treatments that put patients at risk for developing hyponatremia...
February 1, 2018: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/29350451/morphological-specializations-of-the-epidermis-of-an-angler-catfish-chaca-chaca-siluriformes-chacidae-in-relation-to-its-ecological-niche-a-scanning-electron-microscopic-investigation
#9
Arup Mistri, Usha Kumari, Swati Mittal, Ajay Kumar Mittal
The present work was undertaken with the aim to deduce morphological adaptations in skin of an angler catfish Chaca chaca by means of scanning electron microscopy. The fish is nocturnal, bottom dwelling, sluggish, ambush predator, lives in sand, mud, or soft substrates often buried and camouflaged for protection and to feed. The surface of the epidermis is covered with polygonal epithelial cells, each having surface relief of microridges forming intricate patterns. In between epithelial cells irregularly distributed mucous cell openings, randomly distributed epidermal specialized structures, taste buds, and neuromasts are discernible...
January 19, 2018: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29350102/preoperative-clinical-and-sonographic-predictors-for-lateral-cervical-lymph-node-metastases-in-sporadic-medullary-thyroid-carcinoma
#10
Hye-Seon Oh, Hyemi Kwon, Eyun Song, MinJi Jeon, Dong Eun Song, Tae Yong Kim, Jeong Hyun Lee, Suck Joon Hong, Won Bae Kim, YoungKee Shong, Jung Hwan Baek, Won Gu Kim
<b><i>Background</i></b> Total thyroidectomy and cervical lymph node (LN) dissection is generally recommended in patients with medullary thyroid carcinoma (MTC). However, there is no clear evidence for whom to perform prophylactic lateral neck dissection in MTC patients without evident lateral cervical lymph node (LCLN) metastasis in preoperative images. This study evaluated the preoperative features for predicting the LCLN metastasis of MTC. <b><i>Methods</i></b> We included 26 MTC patients with LCLN metastasis at initial surgery (N1b group) and 47 MTC patients without any LN metastasis or recurrence of disease (N0-NED group)...
January 19, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29350033/impact-of-backbone-pattern-and-residue-substitution-on-helicity-in-%C3%AE-%C3%AE-%C3%AE-peptides
#11
Young-Hee Shin, Samuel H Gellman
We have evaluated the impact of changes in the chemical structure of peptidic oligomers containing α-, β-, and γ-amino acid residues (α/β/γ-peptides) on the propensities of these oligomers to adopt helical conformations in aqueous and alcoholic solutions. These studies were inspired by our previous discovery that α/β/γ-peptides containing a regular αγααβα hexad repeat adopt an α-helix-like conformation in which the β and γ residues are aligned in a stripe along one side, and the remainder of the helix surface is defined by the α residues...
January 19, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29349560/effect-of-fibrillatory-wave-amplitude-on-coronary-blood-flow-as-assessed-by-thrombolysis-in-myocardial-infarction-frame-count-in-patients-with-atrial-fibrillation
#12
Yoji Sumimoto, Satoshi Kurisu, Kazuhiro Hitta, Hiroki Ikenaga, Ken Ishibashi, Yukihiro Fukuda, Yukiko Nakano, Yasuki Kihara
Atrial fibrillation (AF) is the most common arrhythmia, characterized by a lack of atrial contraction and an irregular ventricular rhythm. We assessed the effect of fibrillatory wave amplitude on coronary blood flow in patients with AF using the thrombolysis in myocardial infarction (TIMI) frame count. Sixty-one patients with AF persisting for longer than 30 days were included. For controls, 61 age- and sex-matched patients with sinus rhythm were selected. Coarse AF was defined as any fibrillatory wave ≥ 1 mm and fine AF as any fibrillatory wave < 1 mm...
January 18, 2018: Heart and Vessels
https://www.readbyqxmd.com/read/29349282/does-non-standard-work-mean-non-standard-health-exploring-links-between-non-standard-work-schedules-health-behavior-and-well-being
#13
Megan R Winkler, Susan Mason, Melissa N Laska, Mary J Christoph, Dianne Neumark-Sztainer
The last century has seen dramatic shifts in population work circumstances, leading to an increasing normalization of non-standard work schedules (NSWSs), defined as non-daytime, irregular hours. An ever-growing body of evidence links NSWSs to a host of non-communicable chronic conditions; yet, these associations primarily concentrate on the physiologic mechanisms created by circadian disruption and insufficient sleep. While important, not all NSWSs create such chronobiologic disruption, and other aspects of working time and synchronization could be important to the relationships between work schedules and chronic disease...
April 2018: SSM—Population Health
https://www.readbyqxmd.com/read/29347886/the-role-of-place-cues-in-voluntary-stream-segregation-for-cochlear-implant-users
#14
Andreu Paredes-Gallardo, Sara M K Madsen, Torsten Dau, Jeremy Marozeau
Sequential stream segregation by cochlear implant (CI) listeners was investigated using a temporal delay detection task composed of a sequence of regularly presented bursts of pulses on a single electrode (B) interleaved with an irregular sequence (A) presented on a different electrode. In half of the trials, a delay was added to the last burst of the regular B sequence, and the listeners were asked to detect this delay. As a jitter was added to the period between consecutive A bursts, time judgments between the A and B sequences provided an unreliable cue to perform the task...
January 2018: Trends in Hearing
https://www.readbyqxmd.com/read/29347819/presence-of-rigid-red-blood-cells-in-blood-flow-interfere-with-the-vascular-wall-adhesion-of-leukocytes
#15
Mario Gutierrez, Margaret B Fish, Alexander W Golinski, Omolola Eniola-Adefeso
The symptoms of many blood diseases can often be attributed to irregularities in cellular dynamics produced by abnormalities in blood cells, particularly red blood cells (RBCs). Contingent on the disease and its severity, RBCs can be afflicted with increased membrane rigidity as seen in malaria and sickle cell disease. Despite this understanding, little experimental work has been conducted towards understanding the effect of RBC rigidity on cellular dynamics in physiologic blood flow. Though many have computationally modeled complex blood flow to postulate how RBC rigidity may disrupt normal hemodynamics, to date, there lacks a clear understanding of how rigid RBCs affect the blood cell segregation behavior in blood flow, known as margination, and the resulting change in the adhesion of white blood cells (WBCs)...
January 18, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29347725/partition-function-zeros-of-the-p-state-clock-model-in-the-complex-temperature-plane
#16
Dong-Hee Kim
We investigate the partition function zeros of the two-dimensional p-state clock model in the complex temperature plane by using the Wang-Landau method. For p=5, 6, 8, and 10, we propose a modified energy representation to enumerate exact irregular energy levels for the density of states without any binning artifacts. Comparing the leading zeros between different p's, we provide strong evidence that the upper transition at p=6 is indeed of the Berezinskii-Kosterlitz-Thouless (BKT) type in contrast to the claim of the previous Fisher zero study [Phys...
November 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347627/static-and-dynamic-properties-of-two-dimensional-coulomb-clusters
#17
Biswarup Ash, J Chakrabarti, Amit Ghosal
We study the temperature dependence of static and dynamic responses of Coulomb interacting particles in two-dimensional confinements across the crossover from solid- to liquid-like behaviors. While static correlations that investigate the translational and bond orientational order in the confinements show the footprints of hexatic-like phase at low temperatures, dynamics of the particles slow down considerably in this phase, reminiscent of a supercooled liquid. Using density correlations, we probe long-lived heterogeneities arising from the interplay of the irregularity in the confinement and long-range Coulomb interactions...
October 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347388/finite-volume-method-for-self-consistent-field-theory-of-polymers-material-conservation-and-application
#18
Daeseong Yong, Jaeup U Kim
For the purpose of checking material conservation of various numerical algorithms used in the self-consistent-field theory (SCFT) of polymeric systems, we develop an algebraic method using matrix and bra-ket notation, which traces the Hermiticity of the product of the volume and evolution matrices. Algebraic tests for material conservation reveal that the popular pseudospectral method in the Cartesian grid conserves material perfectly, while the finite-volume method (FVM) is the proper tool when real-space SCFT with the Crank-Nicolson method is adopted in orthogonal coordinate systems...
December 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347380/homoclinic-snaking-in-the-discrete-swift-hohenberg-equation
#19
R Kusdiantara, H Susanto
We consider the discrete Swift-Hohenberg equation with cubic and quintic nonlinearity, obtained from discretizing the spatial derivatives of the Swift-Hohenberg equation using central finite differences. We investigate the discretization effect on the bifurcation behavior, where we identify three regions of the coupling parameter, i.e., strong, weak, and intermediate coupling. Within the regions, the discrete Swift-Hohenberg equation behaves either similarly or differently from the continuum limit. In the intermediate coupling region, multiple Maxwell points can occur for the periodic solutions and may cause irregular snaking and isolas...
December 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347372/lattice-boltzmann-heat-transfer-model-for-permeable-voxels
#20
Gerald G Pereira, Bisheng Wu, Shakil Ahmed
We develop a gray-scale lattice Boltzmann (LB) model to study fluid flow combined with heat transfer for flow through porous media where voxels may be partially solid (or void). Heat transfer in rocks may lead to deformation, which in turn can modulate the fluid flow and so has significant contribution to rock permeability. The LB temperature field is compared to a finite difference solution of the continuum partial differential equations for fluid flow in a channel. Excellent quantitative agreement is found for both Poiseuille channel flow and Brinkman flow...
December 2017: Physical Review. E
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