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https://www.readbyqxmd.com/read/28102267/a-theoretical-foundation-for-multi-scale-regular-vegetation-patterns
#1
Corina E Tarnita, Juan A Bonachela, Efrat Sheffer, Jennifer A Guyton, Tyler C Coverdale, Ryan A Long, Robert M Pringle
Self-organized regular vegetation patterns are widespread and thought to mediate ecosystem functions such as productivity and robustness, but the mechanisms underlying their origin and maintenance remain disputed. Particularly controversial are landscapes of overdispersed (evenly spaced) elements, such as North American Mima mounds, Brazilian murundus, South African heuweltjies, and, famously, Namibian fairy circles. Two competing hypotheses are currently debated. On the one hand, models of scale-dependent feedbacks, whereby plants facilitate neighbours while competing with distant individuals, can reproduce various regular patterns identified in satellite imagery...
January 18, 2017: Nature
https://www.readbyqxmd.com/read/28101158/prevalence-of-carbapenemases-among-high-level-aminoglycoside-resistant-acinetobacter-baumannii-isolates-in-a-university-hospital-in-china
#2
Yanhong Wang, Min Shen, Jingni Yang, Min Dai, Yaowen Chang, Chi Zhang, Guangxin Luan, Baodong Ling, Xu Jia
The prevalence of aminoglycoside resistant enzymes has previously been reported and extended-spectrum β-lactamase among Acinetobacter baumannii. To track the risk of multidrug-resistant A. baumannii, the present study aimed to determine the prevalence of carbapenemases in high-level aminoglycoside resistant A. baumannii over two years. A total of 118 strains of A. baumannii were consecutively collected in the First Affiliated Hospital of Chengdu Medical College, Chengdu, China. These isolates were investigated on the genetic basis of their resistance to aminoglycosides...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28099586/serotoninergic-modulation-of-basal-cardiovascular-responses-and-responses-induced-by-isotonic-extracellular-volume-expansion-in-rats
#3
Isadora Ferraz Semionatto, Adrieli Oliveira Raminelli, Angelica Cristina Alves, Caroline Santos Capitelli, Rosangela Soares Chriguer
Background: Isotonic blood volume expansion (BVE) induced alterations of sympathetic and parasympathetic activity in the heart and blood vessels, which can be modulated by serotonergic pathways. Objective: To evaluate the effect of saline or serotonergic agonist (DOI) administration in the hypothalamic paraventricular nucleus (PVN) on cardiovascular responses after BVE. Methods: We recorded pulsatile blood pressure through the femoral artery to obtain the mean arterial pressure (MAP), systolic (SBP) and diastolic blood pressure (DBP), heart rate (HR) and the sympathetic-vagal ratio (LF/HF) of Wistar rats before and after they received bilateral microinjections of saline or DOI into the PVN, followed by BVE...
January 16, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28099572/occurrence-of-ants-hymenoptera-formicidae-in-banisteriopsis-laevifolia-a-juss-b-gates-malpighiaceae-in-s%C3%A3-o-paulo-state-brazil
#4
R Sebastiani, R T Fujihara, M Garcia
No abstract text is available yet for this article.
January 12, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/28099496/plasticity-of-daily-behavioral-rhythms-in-foragers-and-nurses-of-the-ant-camponotus-rufipes-influence-of-social-context-and-feeding-times
#5
Stephanie Mildner, Flavio Roces
Daily activities within an ant colony need precise temporal organization, and an endogenous clock appears to be essential for such timing processes. A clock drives locomotor rhythms in isolated workers in a number of ant species, but its involvement in activities displayed in the social context is unknown. We compared locomotor rhythms in isolated individuals and behavioral rhythms in the social context of workers of the ant Camponotus rufipes. Both forager and nurse workers exhibited circadian rhythms in locomotor activity under constant conditions, indicating the involvement of an endogenous clock...
2017: PloS One
https://www.readbyqxmd.com/read/28099420/addendum-the-rewards-of-restraint-in-the-collective-regulation-of-foraging-by-harvester-ant-colonies
#6
Deborah M Gordon
No abstract text is available yet for this article.
January 18, 2017: Nature
https://www.readbyqxmd.com/read/28097684/feeding-asian-pangolins-an-assessment-of-current-diets-fed-in-institutions-worldwide
#7
Francis Cabana, Amy Plowman, Thai Van Nguyen, Shih-Chien Chin, Sung-Lin Wu, Hsuan-Yi Lo, Hirofumi Watabe, Fujio Yamamoto
Pangolins are ant specialists which are under intense threat from the illegal wildlife trade. Nutrition has notoriously been their downfall in captivity and is still an issue in regards to rescue and rehabilitation. We analyzed the nutrient content of diets used by institutions that are successfully keeping Asian pangolins and to assess the variety of the ingredients and nutrients, compared these with the nutritional requirements of potential nutritional model species. We performed intake studies at five institutions and also had data from three other institutions...
January 18, 2017: Zoo Biology
https://www.readbyqxmd.com/read/28095845/relationship-of-diagnostic-accuracy-of-renal-cortical-echogenicity-with-renal-histopathology-in-dogs-and-cats-a-quantitative-study
#8
Tommaso Banzato, Federico Bonsembiante, Luca Aresu, Alessandro Zotti
BACKGROUND: Renal cortical echogenicity is routinely evaluated during ultrasonographic investigation of the kidneys. Both in dog and cat previous ex-vivo studies have revealed a poor correlation between renal echogenicity and corresponding lesions. The aim of this study was to establish the in-vivo relationship between renal cortical echogenicity and renal histopathology. RESULTS: Thirty-eight dogs and fifteen cats euthanized for critical medical conditions were included in the study...
January 17, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28095785/risk-factors-and-medical-costs-for-healthcare-associated-carbapenem-resistant-escherichia-coli-infection-among-hospitalized-patients-in-a-chinese-teaching-hospital
#9
Xiujuan Meng, Sidi Liu, Juping Duan, Xun Huang, Pengcheng Zhou, Xinrui Xiong, Ruie Gong, Ying Zhang, Yao Liu, Chenchao Fu, Chunhui Li, Anhua Wu
BACKGROUND: The emergence and spread of Carbapenem-resistant Escherichia coli (CREC) is becoming a serious problem in Chinese hospitals, however, the data on this is scarce. Therefore, we investigate the risk factors for healthcare-associated CREC infection and study the incidence, antibiotic resistance and medical costs of CREC infections in our hospital. METHODS: We conducted a retrospective, matched case-control-control, parallel study in a tertiary teaching hospital...
January 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28095121/toxicity-of-new-pyrethroid-in-pest-insects-ascia-monuste-and-diaphania-hyalinata-predator-solenopsis-saevissima-and-stingless-bee-tetragonisca-angustula
#10
Shaiene C Moreno, Flaviano O Silvério, Mayara C Lopes, Rodrigo S Ramos, Elson S Alvarenga, Marcelo C Picanço
There is increasing demand for new products for vegetable pest management. Thus, the aim of this study was to assess the toxicity of pyrethroids with acid moiety modifications to measure the insecticidal activity of these compounds on the lepidopteran vegetable pests Diaphania hyalinata (L.) (Lepidoptera: Pyralidae) and Ascia monuste (Latreille) (Lepidoptera: Pieridae) and evaluate their selectivity for the predatory ant Solenopsis saevissima (F. Smith) (Hymenoptera: Formicidae) and pollinator Tetragonisca angustula (Latreille) (Hymenoptera: Apidae: Meliponinae)...
January 17, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28092009/polycyclic-aromatic-hydrocarbons-pahs-determined-by-pine-needles-and-semipermeable-membrane-devices-along-an-altitude-profile-in-taurus-mountains-turkey
#11
Cafer Turgut, Mehmet Ali Mazmanci, Birgül Mazmanci, Melis Yalçın, PerihanBinnur Kurt Karakuş, Levent Atatanir, Menekşe Keski, Bernhard Henkelmann, Gerd Pfister, Karl-Werner Schramm
Polycyclic aromatic hydrocarbons (PAHs) were analyzed at different altitudes of Taurus Mountains in semipermeable membrane devices (SPMD) and in half-, one-and-a-half-, and two-and-a-half-year-old pine needles. SPMDs were deployed for three different exposure periods: March to September (Summer), September to March (Winter), and March to March (whole year) at eight sites where needle samples were collected. The values of PAHs in needles were between 4.4 to 6066 pg g/fw in half-year-old, 7.2 to 111,115 pg g/fw in 1...
January 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28089825/clinical-and-radiographic-outcome-of-revision-surgery-of-total-elbow-prosthesis-midterm-results-in-19-cases
#12
Jetske Viveen, Ante Prkic, Koen L M Koenraadt, Izaäk F Kodde, Bertram The, Denise Eygendaal
BACKGROUND: The aim of this study is to report on the midterm outcomes and complications of revision surgery of total elbow arthroplasty. METHODS: All patients who had undergone total elbow arthroplasty revision surgery between 2009 and 2014 with semiconstrained total elbow prostheses were prospectively enrolled in the study. Records were reviewed for demographic data; baseline measurements; and several follow-up assessments including the Mayo Elbow Performance Score (MEPS), visual analog scale (VAS) score for pain, Oxford Elbow Score, range of motion, satisfaction, and radiographs...
January 13, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28088619/pappa-ante-portas-the-effect-of-the-husband-s-retirement-on-the-wife-s-mental-health-in-japan
#13
Marco Bertoni, Giorgio Brunello
The "Retired Husband Syndrome", that affects the mental health of wives of retired men around the world, has been anecdotally documented but never formally investigated. Using Japanese micro-data and the exogenous variation across cohorts in the maximum age of guaranteed employment induced by a 2006 Japanese reform, we estimate that the husband's earlier retirement significantly increases the probability that the wife reports symptoms related to the syndrome. We also find that retirement has a negative effect both on the household's economic situation and on the husband's own mental health, and that the higher economic distress contributes to reducing the wife's mental health...
January 9, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28087584/emergence-of-klebsiella-variicola-positive-for-ndm-9-a-variant-of-new-delhi-metallo-%C3%AE-lactamase-in-an-urban-river-in-south-korea
#14
Doris Y W Di, Jeonghwan Jang, Tatsuya Unno, Hor-Gil Hur
OBJECTIVES: To examine the presence of pathogenic bacteria carrying New Delhi metallo-β-lactamase in the environment and to characterize the genome structures of these strains. METHODS: Phenotypic screening of antimicrobial susceptibility and WGS were conducted on three Klebsiella variicola strains possessing NDM-9 isolated from an urban river. RESULTS: Three carbapenem-resistant K. variicola isolated from Gwangju tributary were found to possess blaNDM-9 genes...
January 12, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28086885/harnessing-the-early-post-injury-inflammatory-responses-for-cardiac-regeneration
#15
REVIEW
Bill Cheng, H C Chen, I W Chou, Tony W H Tang, Patrick C H Hsieh
Cardiac inflammation is considered by many as the main driving force in prolonging the pathological condition in the heart after myocardial infarction. Immediately after cardiac ischemic injury, neutrophils are the first innate immune cells recruited to the ischemic myocardium within the first 24 h. Once they have infiltrated the injured myocardium, neutrophils would then secret proteases that promote cardiac remodeling and chemokines that enhance the recruitment of monocytes from the spleen, in which the recruitment peaks at 72 h after myocardial infarction...
January 13, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28085520/psychosocial-determinants-for-treatment-decisions-in-familial-retinoblastoma
#16
Sameh E Soliman, Alissa Ulster, Heather MacDonald, Cynthia VandenHoven, Ants Toi, Elise Hèon, Brenda Gallie
No abstract text is available yet for this article.
January 13, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28084998/comparison-of-long-term-outcome-of-intratympanic-dexamethasone-therapy-between-acute-noise-induced-tinnitus-and-acute-idiopathic-tinnitus
#17
Hyun Joon Shim, Eun Sub Lee, Yong Hwi An, Dong Hyun Kim
OBJECTIVE: To compare the long-term outcomes of acute noise-induced tinnitus (ANT) and acute idiopathic tinnitus (AIT) to intratympanic dexamethasone (ITD) therapy. MATERIALS AND METHODS: Patients treated for tinnitus occurring immediately after noise exposure comprised the ANT group (n=20) and patients treated for idiopathic tinnitus comprised the AIT group (n=39). All patients were treated with ITD within 3 months of the onset of tinnitus. Quantitative assessment of the improvement in tinnitus using questionnaires and changes in hearing thresholds were compared between the two groups...
January 13, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28082084/the-effects-of-fungal-infection-and-physiological-condition-on-the-locomotory-behaviour-of-the-ant-myrmica-scabrinodis
#18
Enikő Csata, Abel Bernadou, Elena Rákosy-Tican, Jürgen Heinze, Bálint Markó
Parasite infection often results in alterations in host behaviour. These changes vary greatly in their magnitude, from slight shifts in the time spent by the host performing a given activity to the appearance of novel behaviours. The effects of parasites can differ with the age and the physiological condition of the host. Rickia wasmannii is an ectoparasitic fungal symbiont in Myrmica ants that covers the whole body surface of the host and reduces its lifespan. The fungus is present in both young and old individuals, making it an optimal subject for the study of age-related parasitic effects...
January 9, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28081798/post-mortem-detection-of-bacteremia-using-pairs-of-blood-culture-samples
#19
Keishin Sunagawa, Masahiko Sugitani
AIM: The objective of this study was to assess the utility of examining pairs of blood culture samples obtained from separate sites (both ventricles or the aorta and vena cava) for detecting bacteremia in the post-mortem setting. METHODS: Autopsy cases in which bacterial species were isolated from blood cultures were identified over a 4-year period. Ante-mortem and post-mortem records and the findings of pathological examinations were reviewed. RESULTS: Overall, 23 bacterial species were detected in 18 autopsy cases...
January 2017: Legal Medicine
https://www.readbyqxmd.com/read/28081742/microrna-92a-promotes-cell-proliferation-in-cervical-cancer-via-inhibiting-p21-expression-and-promoting-cell-cycle-progression
#20
Zhiying Su, Hua Yang, Min Zhao, Yanlong Wang, Guoyi Deng, Ruixin Chen
MicroRNA-92a (miR-92a) generally plays a promoting role in human cancers, but the underlying mechanism in cervical cancer remains unclear. Here we studied the expression and clinical significance of miR-92a in cervical cancer, as well as the regulatory mechanism in the proliferation of cervical cancer cells. Our data indicated that miR-92a was significantly upregulated in cervical cancer tissues compared to their matched adjacent nontumor tissues (ANTs), and the increased miR-92a levels were significantly associated with a higher grade, lymph node metastasis, and advanced clinical stage in cervical cancer...
January 2, 2017: Oncology Research
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