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https://www.readbyqxmd.com/read/29330044/effects-of-acupuncture-on-the-heart-rate-variability-cortisol-levels-and-behavioural-response-induced-by-thunder-sound-in-beagles
#1
Carolina Elisabetta Martins Maccariello, Carla Caroline Franzini de Souza, Laura Morena, Daniel Penteado Martins Dias, Magda Alves de Medeiros
Sound stimuli such as fireworks, firearms, and claps of thunder have been used as a stress reactivity model for dogs. Acupuncture has been widely used to treat and prevent physiological and behavioural disorders induced by stress. Our study aims to evaluate the effects of acupuncture on cardiac autonomic modulation (heart rate variability - HRV), behavioural (reactivity) and endocrine (cortisol levels) responses in dogs exposed to sounds of thunder. Twenty-four laboratory beagles (12 males and 12 females, 1-6years old) with no history of phobia to thunder were subjected to a sound stimulus that consisted of a standardized recording of thunder over a 150s period with a maximum intensity of 103-104dB...
January 9, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29327963/antemortem-diagnosis-of-coxiellosis-in-a-blue-and-gold-macaw-ara-ararauna
#2
Alison J Flanders, Justin F Rosenberg, Marjorie Bercier, Mary K Leissinger, Laura J Black, Robson F Giglio, Serena L M Craft, Whitney M Zoll, April L Childress, James F X Wellehan
A 15-year-old female blue and gold macaw ( Ara ararauna) was presented for evaluation after being found laterally recumbent, reluctant to move, and lethargic. Results of a complete blood count showed an increased number of immature heterophils with increased cytoplasmic basophilia and degranulation and the presence of a left shift. Radiographs and a computed tomography scan were performed and revealed a markedly enlarged spleen. An ultrasound-guided fine-needle aspirate of the spleen was submitted for cytologic examination and aerobic bacterial culture...
December 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29327654/delayed-reaction-the-tardy-embrace-of-physical-organic-chemistry-by-the-german-chemical-community
#3
Stephen J Weininger
The emergence of physical organic chemistry, which focuses on the mechanisms and structures of organic reactions and molecules using the tools of physical chemistry, was a major development in twentieth-century chemistry. It first flourished in the interwar period, in the UK and then in the US. Germany, by contrast, did not embrace the field until almost a half century later. The great success of classical organic chemistry, especially in synthesis, encouraged indifference to the new field among German chemists, as did their inductivist research philosophy, as enunciated by Walter Hückel's ground-breaking textbook (1931)...
January 12, 2018: Ambix
https://www.readbyqxmd.com/read/29327630/the-specter-of-the-primitive
#4
Gregory S Rizzolo
Traditional psychoanalytic theories of development hold that the adult neurotic can regress, or has already regressed, to the childhood arrests and/or fixations in which his pathology originated. More recent critiques have called this possibility into question. It is unlikely that anyone can roll back the additions and modifications of lifespan development in a full-fledged return to the needs, wishes, and anxieties of childhood. By regression, though, some analysts mean not a full-fledged return to an earlier developmental phase, but a non-phase-specific slip into primitive fantasies and defenses...
December 2017: Journal of the American Psychoanalytic Association
https://www.readbyqxmd.com/read/29327552/-treatment-of-irreducible-gartland-typeiii-humerus-supracondylar-fracture-in-children-with-limited-open-reduction-and-percutaneous-k-wire-internal-fixation
#5
Xin Li, Hong Liu, Sheng Xiao, Ke Fang, Jie Wen
OBJECTIVE: To investigate the clinical outcomes of limited open reduction and percutaneous K-wire internal fixation for the treatment of irreducible Gartland type III humerus supracondylar fracture in children. METHODS: From May 2006 to October 2014, 132 patients with irreducible Gartland type III humerus supracondylar fracture were treated with reduction and percutaneous K-wire internal fixation. The reduction was performed with the guiding of surgeon's finger, and the lateral approach with periosteum torn was chosen according to the shift direction of the distal fractures...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29325108/aging-is-associated-with-a-prefrontal-lateral-medial-shift-during-picture-induced-negative-affect
#6
Carien M van Reekum, Stacey M Schaefer, Regina C Lapate, Catherine J Norris, Patricia A Tun, Margie E Lachman, Carol A Ryff, Richard J Davidson
The capacity to adaptively respond to negative emotion is in part dependent upon lateral areas of the prefrontal cortex (PFC). Lateral PFC areas are particularly susceptible to age-related atrophy, which affects executive function (EF). We used structural and functional magnetic resonance imaging (MRI) to test the hypothesis that older age is associated with greater medial PFC engagement during processing of negative information, and that this engagement is dependent upon the integrity of grey matter structure in lateral PFC as well as EF...
January 8, 2018: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/29323943/electronic-media-use-and-sleep-among-preschoolers-evidence-for-time-shifted-and-less-consolidated-sleep
#7
Ine Beyens, Amy I Nathanson
This study examined the association between electronic media use and sleep among preschoolers, using a national sample of 402 mothers of 3- to 5-year-olds. Participants completed an online survey assessing preschoolers' electronic media use, bedtime and wake time, sleep time, napping behaviors, and sleep consolidation. Results showed that heavier television use and tablet use, both overall and in the evening, were associated with later bedtimes and later wake times, but not with fewer hours of sleep, providing evidence for a time-shifting process...
January 11, 2018: Health Communication
https://www.readbyqxmd.com/read/29322904/modular-bicompartmental-knee-arthroplasty-indications-technique-prosthetic-design-and-results
#8
R Kanna
The shifting demographics of patients with localized knee arthritis, including younger, more active patients, is a chief motivation for mounting interest in tissue preserving surgical substitutes for total knee arthroplasty (TKA). Unlinked, modular bi-compartmental knee arthroplasty (MBKA) is an emerging knee-resurfacing approach that provides a conservative alternative to TKA. Arthritis involving both patellofemoral and either medial or lateral tibiofemoral compartments, with no significant deformity or bone deficiency, preserved motion, and intact cruciate ligaments, can be effectively managed with MBKA...
March 2017: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/29322387/giant-panda-foraging-and-movement-patterns-in-response-to-bamboo-shoot-growth
#9
Mingchun Zhang, Zhizhong Zhang, Zhong Li, Mingsheng Hong, Xiaoping Zhou, Shiqiang Zhou, Jindong Zhang, Vanessa Hull, Jinyan Huang, Hemin Zhang
Diet plays a pivotal role in dictating behavioral patterns of herbivorous animals, particularly specialist species. The giant panda (Ailuropoda melanoleuca) is well-known as a bamboo specialist. In the present study, the response of giant pandas to spatiotemporal variation of bamboo shoots was explored using field surveys and GPS collar tracking. Results show the dynamics in panda-bamboo space-time relationships that have not been previously articulated. For instance, we found a higher bamboo stump height of foraged bamboo with increasing elevation, places where pandas foraged later in spring when bamboo shoots become more fibrous and woody...
January 10, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29322316/intentional-binding-of-visual-effects
#10
Miriam Ruess, Roland Thomaschke, Andrea Kiesel
When an action produces an effect, the effect is perceived earlier in time compared to a stimulus without preceding action. This temporal bias is called intentional binding (IB) and serves as an implicit measure of sense of agency. Typically, IB is investigated by presenting a rotating clock hand while participants execute an action and perceive a resulting tone. Participants are asked to estimate the time point of tone onset by referring to the clock hand position. This time point estimate is compared to a time point estimate of a tone in a condition in which the tone occurs without preceding action...
January 10, 2018: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/29321606/reevaluation-of-the-dentary-structures-of-caenagnathid-oviraptorosaurs-dinosauria-theropoda
#11
Shuo Wang, Qiyue Zhang, Rui Yang
Among the characters of caenagnathid oviraptorosaurians, the lateral occlusal grooves and ridges on the occlusal surface of the jaw bones often receive special attention. Recent studies demonstrated that ontogenetic edentulism is present in caenagnathids, and therefore the lateral occlusal grooves and ridges are vestigial alveoli and interdental septa, respectively. In the present paper, the dentary structures of caenagnathids were reevaluated based on CT images of Caenagnathiasia sp. IVPP V20377. Several previously unknown features including crateriform vestigial alveoli, the morphology of the dentary interior hollow space, and the paired blind tubes beneath the dentary symphyseal shelf are recognized...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321574/impact-of-climate-change-and-human-activity-on-soil-landscapes-over-the-past-12-300-years
#12
Leo Rothacker, Anthony Dosseto, Alexander Francke, Allan R Chivas, Nathalie Vigier, Anna M Kotarba-Morley, Davide Menozzi
Soils are key to ecosystems and human societies, and their critical importance requires a better understanding of how they evolve through time. However, identifying the role of natural climate change versus human activity (e.g. agriculture) on soil evolution is difficult. Here we show that for most of the past 12,300 years soil erosion and development were impacted differently by natural climate variability, as recorded by sediments deposited in Lake Dojran (Macedonia/Greece): short-lived ( < 1,000 years) climatic shifts had no effect on soil development but impacted soil erosion...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29319010/audiometric-notch-and-extended-high-frequency-hearing-threshold-shift-in-relation-to-total-leisure-noise-exposure-an-exploratory-analysis
#13
Wenjia Wei, Stefanie Heinze, Doris G Gerstner, Sandra M Walser, Dorothee Twardella, Christina Reiter, Veronika Weilnhammer, Carmelo Perez-Alvarez, Thomas Steffens, Caroline E W Herr
BACKGROUND: Studies investigating leisure noise effect on extended high frequency hearing are insufficient and they have inconsistent results. The aim of this study was to investigate if extended high-frequency hearing threshold shift is related to audiometric notch, and if total leisure noise exposure is associated with extended high-frequency hearing threshold shift. MATERIALS AND METHODS: A questionnaire of the Ohrkan cohort study was used to collect information on demographics and leisure time activities...
November 2017: Noise & Health
https://www.readbyqxmd.com/read/29318754/coordination-of-bilateral-tooth-replacement-in-the-juvenile-gecko-is-continuous-with-in-ovo-patterning
#14
Theresa M Grieco, Joy M Richman
We performed a test of how function impacts a genetically programmed process that continues into postnatal life. Using the dentition of the polyphyodont gecko as our model, tooth shedding was recorded longitudinally across the jaw. We compared two time periods: one in which teeth were patterned symmetrically in ovo and a later period when teeth were initiated post-hatching. By pairing shedding events on the right and left sides, we found the patterns of tooth loss are symmetrical and stable between periods, with only subtle deviations...
January 10, 2018: Evolution & Development
https://www.readbyqxmd.com/read/29317367/biomechanical-role-of-the-thoracolumbar-ligaments-of-the-posterior-ligamentous-complex-a-finite-element-study
#15
Cong-Cong Wu, Hai-Ming Jin, Ying-Zhao Yan, Jian Chen, Ke Wang, Jian-Le Wang, Zeng-Jie Zhang, Ai-Min Wu, Xiang-Yang Wang
OBJECTIVES: To investigate the effect of sequential ligament failure on the range of motion (ROM) and location of the instantaneous axes of rotation (IAR) of the thoracolumbar spine (T12-L1) finite element (FE) model, and to verify the role of the supraspinous ligament (SSL) in maintaining the stability of the injured thoracolumbar spine. METHODS: A FE model of the fracture thoracolumbar spine was developed and validated against published data. The posterior ligamentous complex (PLC) in the fractured T12-L1 segment was then reduced in a sequential manner from the facet capsular ligament (FCL), part of the interspinous ligament (ISL), supraspinous ligament, and entire ISL, to the ligamentum flavum (LF)...
January 6, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29315211/high-temperature-raman-spectroscopy-of-nano-crystalline-carbon-in-silicon-oxycarbide
#16
Felix Rosenburg, Emanuel Ionescu, Norbert Nicoloso, Ralf Riedel
The microstructure of segregated carbon in silicon oxycarbide (SiOC), hot-pressed at T = 1600 °C and p = 50 MPa, has been investigated by VIS Raman spectroscopy (λ = 514 nm) within the temperature range 25-1000 °C in air. The occurrence of the G, D' and D bands at 1590, 1620 and 1350 cm-1, together with a lateral crystal size La < 10 nm and an average distance between lattice defects LD ≈ 8 nm, provides evidence that carbon exists as nano-crystalline phase in SiOC containing 11 and 17 vol % carbon. Both samples show a linear red shift of the G band up to the highest temperature applied, which is in agreement with the description of the anharmonic contribution to the lattice potential by the modified Tersoff potential...
January 9, 2018: Materials
https://www.readbyqxmd.com/read/29315177/forward-masking-of-the-speech-evoked-auditory-brainstem-response
#17
Sarah E Hodge, Denise C Menezes, Kevin D Brown, John H Grose
HYPOTHESIS: The hypothesis tested was that forward masking of the speech-evoked auditory brainstem response (sABR) increases peak latency as an inverse function of masker-signal interval (Δt), and that the overall persistence of forward masking is age dependent. BACKGROUND: Older listeners exhibit deficits in forward masking. If forward-masked sABRs provide an objective measure of the susceptibility of speech sounds to prior stimulation, then this provides a novel approach to examining the age dependence of temporal processing...
February 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29314589/effect-of-the-comt-val158met-genotype-on-lateral-prefrontal-activations-in-young-children
#18
Yusuke Moriguchi, Ikuko Shinohara
Low executive function (EF) during early childhood is a major risk factor for developmental delay, academic failure, and social withdrawal. Susceptible genes may affect the molecular and biological mechanisms underpinning EF. More specifically, genes associated with the regulation of prefrontal dopamine may modulate the response of prefrontal neurons during executive control. Several studies with adults and older children have shown that variants of the catechol-O-methyltransferase (COMT) gene are associated with behavioral performance and prefrontal activations in EF tasks...
January 4, 2018: Developmental Science
https://www.readbyqxmd.com/read/29313896/great-ape-walking-kinematics-implications-for-hominoid-evolution
#19
Emma M Finestone, Mary H Brown, Stephen R Ross, Herman Pontzer
OBJECTIVES: Great apes provide a point of reference for understanding the evolution of locomotion in hominoids and early hominins. We assessed (1) the extent to which great apes use diagonal sequence, diagonal couplet gaits, like other primates, (2) the extent to which gait and posture vary across great apes, and (3) the role of body mass and limb proportions on ape quadrupedal kinematics. METHODS: High-speed digital video of zoo-housed bonobos (Pan paniscus, N = 8), chimpanzees (Pan troglodytes, N = 13), lowland gorillas (Gorilla gorilla, N = 13), and orangutans (Pongo spp...
January 4, 2018: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29313319/early-experience-with-a-tapered-titanium-porous-plasma-sprayed-stem-with-updated-design
#20
Antonio G Manocchio, Keith R Berend, Michael J Morris, Joanne B Adams, Adolph V Lombardi
INTRODUCTION: The Taperloc® Complete femoral stem (Zimmer Biomet, Warsaw, Indiana) builds on the widespread clinical success of the original Taperloc design used since 1982. Enhancements to the Complete design include a lowered caput-collum-diaphyseal (CCD) angle from 138° to 133° for improved offset, optimized neck taper with polished neck flats to increase range of motion, reduced distal geometry to improve proximal canal fill, and gradual off-loading that is the goal of tapered geometry...
December 22, 2017: Surgical Technology International
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