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https://www.readbyqxmd.com/read/29692091/-niche-of-main-populations-and-environmental-interpretation-in-grassland-of-loess-plateau-hilly-region-china
#1
Hui Feng Wu, Li Juan Song, Feng Du, Wen Fang Hao
Focused on different rehabilitation ages grassland in Wuqi County in loess hilly region, the present study aimed to explore niche characteristics of populations and their influence factors. The results showed that the dominant species were Artemisia sacrorum, A. leucophylla, A. scoparia, Lespedeza daurica and Poa sphondylodes, and the dominant species varied along with the rehabilitation age. The niche breadth of dominant populations increased with increasing rehabilitation age from 5 to 10 years, indicating enhanced adaptability to the environment...
November 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692088/-sap-flux-density-in-response-to-rainfall-pulses-for-pinus-tabuliformis-and-hippophae-rhamnoides-from-mixed-plantation-in-hilly-loess-plateau
#2
Sen Bao Lu, Yun Ming Chen, Ya Kun Tang, Xu Wu, Jie Wen
Thermal dissipation probe (TDP) was used to continuously measure the sap flux density (Fd ) of Pinus tabuliformis and Hippophae rhamnoides individuals in hilly Loess Plateau, from June to October 2015, and the environmental factors, i.e., photosynthetic active radiation (PAR), water vapor pressure deficit (VPD), and soil water content (SWC), were simultaneously monitored to clarify the difference of rainfall utilization between the two tree species in a mixed plantation. Using the methods of a Threshold-delay model, stepwise multiple regression analyses, and partial correlation analyses, this paper studied the process of Fd in these two species in response to the rainfall pulses and then determined the effects of environmental factors on Fd ...
November 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692079/-characteristics-of-temporal-spatial-differentiation-in-landscape-pattern-vulnerability-in-nansihu-lake-wetland-china
#3
Jia Xin Liang, Xin Ju Li
With remote sensing images from 1985, 2000 Lantsat 5 TM and 2015 Lantsat 8 OLI as data sources, we tried to select the suitable research scale and examine the temporal-spatial diffe-rentiation with such scale in the Nansihu Lake wetland by using landscape pattern vulnerability index constructed by sensitivity index and adaptability index, and combined with space statistics such as semivariogram and spatial autocorrelation. The results showed that 1 km × 1 km equidistant grid was the suitable research scale, which could eliminate the influence of spatial heterogeneity induced by random factors...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692061/-the-relative-contributions-of-plant-quality-simulated-rising-temperature-and-habitat-to-litter-decomposition
#4
Hang Wang, Peng Fei Yan, Peng Fei Zhan, Xiao Ning Zhang, Zhen Ya Liu, Yu Jing Guo, De Rong Xiao
With litter bag methods, we examined mass loss rates and different chemical fractions of litters from two wetland plant species, Zizania caduciflora and Hippuris vulgaris. Those two species examined here varied significantly in their initial litter chemical traits. Experiment was performed under simulated rising temperature (1.5-2.0 ℃), and under three different habitats (air, air-water interface and water-soil interface). The results showed that, during one-year decomposition period, the mass resi-dual rates exhibited distinct seasonal dynamics, and there were strong interactive effects between seasonal dynamics and environmental factors...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692007/-effects-of-selective-cutting-disturbance-on-soil-phosphorus-adsorption-and-desorption-in-a-korean-pine-and-broad-leaved-mixed-forest-in-the-xiaoxing-an-mountains-china
#5
Xin Zhang, Hui Yan Gu, Xiang Wei Chen
This study examined the characteristics of phosphorus (P) adsorption and desorption in surface soil (0-10 cm) of a secondary forest after selective cutting disturbance at three levels of intensity (low, medium, high) in order to reveal the effects of different disturbance intensities on soil P adsorption and desorption. Maximum adsorption amount (Qm ), adsorption intensity factor, maximum buffer capacity, maximum desorption amount, average desorption rate and readily desorptable phosphorus were measured. Qm in the focal forests was 1383...
January 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692000/phloroglucinol-derivatives-from-the-fruits-of-eucalyptus-globulus-and-their-cytotoxic-activities
#6
Pham Thi-Anh, Imran Shair Mohammad, Vu Van-Tuan, Hu Xiao-Long, Chaurasiya Birendra, Aftab Ulah, Guo Cui, Lv Xian-Yu, Ye Wen-Cai, Wang Hao
A new phloroglucinol derivative, named Eucalyptin B (1), along with five related known compounds (2-6), was isolated from the fruits of Eucalyptus globulus. Their structures were elucidated by means of 1D and 2D NMR spectroscopy, with the absolute configuration of 1 determined by electronic circular dichroism (ECD) calculations. All isolated compounds (1-6) were evaluated for their cytotoxic activities against lung (A549), breast (4T1), and skin (B16F10) cancer cell lines. On the basis of cytoxicity the antitumor activity of Eucalyptin B (1) was further confirmed by apoptosis assay...
April 24, 2018: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/29691957/very-long-term-outcome-of-schizophrenia
#7
REVIEW
Jan Volavka, Jan Vevera
PURPOSE: The principal aim is to review recent data concerning the very long-term outcome of schizophrenia and schizophrenia spectrum disorders. We examine factors that influence outcome, including therapeutic interventions. METHOD: PubMed and Scopus databases were searched for papers published between 2008 and 2017 reporting on prospective studies of schizophrenia or schizophrenia spectrum with a follow-up period ≥5 years with adequate outcome information. Additional publications were found in reference lists and authors' reference libraries...
April 24, 2018: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/29691919/impact-of-different-assumptions-on-estimates-of-childhood-diseases-obtained-from-health-care-data-a-retrospective-cohort-study
#8
Osemeke U Osokogu, Alexandra Pacurariu, Mees Mosseveld, Peter Rijnbeek, Daniel Weibel, Katia Verhamme, Miriam C J M Sturkenboom
PURPOSE: Accurate estimates of disease incidence in children are required to support pediatric drug development. Analysis of electronic health care records (EHR) may yield such estimates but pediatric-specific methods are lacking. We aimed to understand the impact of assumptions regarding duration of disease episode and length of run-in period on incidence estimates from EHRs. METHODS: Children aged 0 to 17 years (5-17 years for asthma) registered in the Integrated Primary Care Information database between 2002 and 2014 were studied...
April 24, 2018: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/29691917/an-immunological-age-index-in-bipolar-disorder-a-confirmatory-factor-analysis-of-putative-immunosenescence-markers-and-associations-with-clinical-characteristics
#9
Lucas B Rizzo, Walter Swardfager, Pawan Kumar Maurya, Maiara Zeni Graiff, Mariana Pedrini, Elson Asevedo, Ana Cláudia Cassinelli, Moisés E Bauer, Quirino Cordeiro, Jan Scott, Elisa Brietzke, Hugo Cogo-Moreira
OBJECTIVES: The study aims to generate an immunological age (IA) trait on the basis of immune cell differentiation parameters, and to test whether the IA is related to age and disease characteristics. METHODS: Forty-four euthymic type I bipolar disorder patients were included in this study. Five immunosenescence-related parameters were assessed: proportions of late-differentiated cells (e.g., CD3+CD8+CD28-CD27- and CD3-CD19+IgD-CD27-), and the expression of CD69, CD71, and CD152 after stimulation...
April 25, 2018: International Journal of Methods in Psychiatric Research
https://www.readbyqxmd.com/read/29691896/genome-wide-interaction-with-the-insulin-secretion-locus-mtnr1b-reveals-cmip-as-a-novel-type-2-diabetes-susceptibility-gene-in-african-americans
#10
Jacob M Keaton, Chuan Gao, Meijian Guan, Jacklyn N Hellwege, Nicholette D Palmer, James S Pankow, Myriam Fornage, James G Wilson, Adolfo Correa, Laura J Rasmussen-Torvik, Jerome I Rotter, Yii-Der I Chen, Kent D Taylor, Stephen S Rich, Lynne E Wagenknecht, Barry I Freedman, Maggie C Y Ng, Donald W Bowden
Although type 2 diabetes (T2D) results from metabolic defects in insulin secretion and insulin sensitivity, most of the genetic risk loci identified to date relates to insulin secretion. We reported that T2D loci influencing insulin sensitivity may be identified through interactions with insulin secretion loci, thereby leading to T2D. Here, we hypothesize that joint testing of variant main effects and interaction effects with an insulin secretion locus increases power to identify genetic interactions leading to T2D...
April 24, 2018: Genetic Epidemiology
https://www.readbyqxmd.com/read/29691894/incremental-value-of-left-atrial-mechanical-dispersion-over-cha-2-ds-2-vasc-score-in-predicting-risk-of-thrombus-formation
#11
Karolina Kupczynska, Blazej W Michalski, Dawid Miskowiec, Jaroslaw D Kasprzak, Ewa Szymczyk, Paulina Wejner Mik, Piotr Lipiec
PURPOSE: To assess the potential ability of two-dimensional speckle tracking analysis (STE) during atrial fibrillation (AF) to identify patients with LA appendage thrombi (LAAT). METHODS: This study involved 93 patients with AF (39% female, 67.1 ± 9.5 years) who were referred for a clinical indication for transesophageal echocardiography (TEE). TEE revealed LAAT in 39 (42%) patients. We analyzed standard parameters of the left ventricle (LV) and LA in transthoracic echocardiography...
April 24, 2018: Echocardiography
https://www.readbyqxmd.com/read/29691869/hand-eczema-in-nurses-nursing-auxiliaries-and-cleaners-a-cross-sectional-study-from-a-tertiary-hospital-in-western-india
#12
Sanjeev B Gupta, Aayush Gupta, Bhavika Shah, Preeti Kothari, Sweety Darall, Dhara Boghara, Sukhnandan Sonkar, Kirti Deo
BACKGROUND: Healthcare workers have a high risk of developing hand eczema. OBJECTIVES: To determine the prevalence and severity of dermatologist-determined hand eczema among healthcare workers, carry out patch testing, and correlate the findings with impairment in quality of life (QoL) and demographic and vocational factors. METHODS: Seven hundred and ten healthcare workers (279 nurses, 246 cleaners, and 185 nursing auxiliaries) were screened for the presence of hand eczema...
April 25, 2018: Contact Dermatitis
https://www.readbyqxmd.com/read/29691844/genetic-and-morphological-evaluation-game-score-for-patients-with-colorectal-liver-metastases
#13
G A Margonis, K Sasaki, S Gholami, Y Kim, N Andreatos, N Rezaee, A Deshwar, S Buettner, P J Allen, T P Kingham, T M Pawlik, J He, J L Cameron, W R Jarnagin, C L Wolfgang, M I D'Angelica, M J Weiss
BACKGROUND: This study sought to develop a clinical risk score for resectable colorectal liver metastasis (CRLM) by combining clinicopathological and clinically available biological indicators, including KRAS. METHODS: A cohort of patients who underwent resection for CRLM at the Johns Hopkins Hospital (JHH) was analysed to identify independent predictors of overall survival (OS) that can be assessed before operation; these factors were combined into the Genetic And Morphological Evaluation (GAME) score...
April 25, 2018: British Journal of Surgery
https://www.readbyqxmd.com/read/29691843/a-systems-approach-to-identify-factors-influencing-adverse-drug-events-in-nursing-homes
#14
Ali Azeez Al-Jumaili, William R Doucette
The objectives of the study were to identify the incidence rate and characteristics of adverse drug events (ADEs) in nursing homes (NHs) using the ADE trigger tool and to evaluate the relationships between resident and facility work system factors and incidence of ADEs using the System Engineering Initiative for Patient Safety (SEIPS) model. The study used 2 observational quantitative methods, retrospective resident chart extraction, and surveys. The participating staff included Directors of nursing, registered nurses, certified nurse assistants (CNAs)...
April 24, 2018: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/29691837/oral-health-status-associated-with-sociodemographic-factors-of-nepalese-schoolchildren-a-population-based-study
#15
Saujanya Karki, Marja-Liisa Laitala, Manoj Humagain, Marjo Seppänen, Jari Päkkila, Vuokko Anttonen
OBJECTIVES: The aim of this study was to investigate the oral health of Nepalese schoolchildren relative to their sociodemographic characteristics. METHODS: This school-based, cross-sectional study was conducted among 5-6-, 12- and 15-year-old Nepalese children in 18 randomly selected districts of the 75 in Nepal. Clinical parameters were recorded according to the World Health Organization (WHO) guidelines. Results were presented as mean (SD) and proportions; the chi-square test, t-test and one way-ANOVA were also performed...
April 25, 2018: International Dental Journal
https://www.readbyqxmd.com/read/29691808/total-body-irradiation-for-hematopoietic-stem-cell-transplantation-during-early-childhood-is-associated-with-the-risk-for-diabetes-mellitus
#16
Ryuichi Nakagawa, Atsumi Hosokawa-Tsuji, Yuki Aoki, Kei Takasawa, Mitsue Maru, Keisuke Nakajima, Akito Sutani, Yuichi Miyakawa, Daisuke Tomizawa, Kenichi Kashimada, Tomohiro Morio
BACKGROUND: Hematopoietic stem cell transplantation (HSCT) is a curative treatment for life-threatening malignancies and related diseases. Recently, the long-term prognosis of HSCT during childhood has greatly improved; however, the late adverse effects of HSCT have been found to cause substantial morbidity among long-term survivors. Although metabolic complications, such as diabetes mellitus (DM) and hyperlipidemia (HL), are the major late effects of pediatric HSCT, the clinical details are not clarified sufficiently...
April 24, 2018: Endocrine
https://www.readbyqxmd.com/read/29691792/effect-of-enzymatic-digestion-of-protein-derivatives-obtained-from-mucuna-pruriens-l-on-production-of-proinflammatory-mediators-by-balb-c-mouse-macrophages
#17
Edwin E Martínez Leo, Victor E Arana Argáez, Juan J Acevedo Fernández, Rosa Moo Puc, Maira R Segura Campos
Inflammation is considered to be a major risk factor for the pathogenesis of chronic non-communicable diseases. Macrophages are important immune cells, which regulate inflammation and host defense by secretion of proinflammatory mediators. Obtaining biopeptides by enzymatic hydrolysis adds value to proteins of vegetative origin, such as Mucuna pruriens L. The present study evaluated the effect of enzymatic digestion of protein derivatives obtained from M. pruriens L. on the production of proinflammatory mediators by BALB/c mouse macrophages...
April 25, 2018: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29691750/long-term-study-of-cr-ni-zn-and-p-distribution-in-typha-domingensis-growing-in-a-constructed-wetland
#18
Hernán Ricardo Hadad, María de Las Mercedes Mufarrege, Gisela Alfonsina Di Luca, María Alejandra Maine
The aim of this work was to study Cr, Ni, Zn, and P bioaccumulation in different compartments of Typha domingensis plants and sediment in a free-water surface constructed wetland for the treatment of a metallurgical effluent for 5 years. Removal efficiencies were satisfactory. To increase metal tolerance, its transport from belowground to aboveground tissues is reduced, being metal concentrations in the roots and rhizomes significantly higher than in the aerial and submerged parts of leaves. Regarding belowground tissues, metals were retained in the roots, while P was mainly accumulated in rhizomes...
April 25, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29691738/a-novel-physiobiological-parameter-based-grading-system-for-resectable-pancreatic-cancer
#19
Takehiro Okabayashi, Yasuo Shima, Tatsuaki Sumiyoshi, Kenta Sui, Jun Iwata, Sojiro Morita, Yasuhiro Shimada, Tatsuo Iiyama
BACKGROUND: Preoperative methods to estimate disease-specific survival (DSS) for resectable pancreatic cancer are limited. OBJECTIVE: The aim of this study was to develop and validate a pretreatment physiobiological prognostic model in patients with radiologically resectable pancreatic cancer. METHODS: A retrospective review of a prospectively maintained institutional database was undertaken to identify patients who underwent potentially curative resection for radiologically resectable pancreatic cancer...
April 24, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29691737/salvage-abdominoperineal-resection-for-squamous-cell-anal-cancer-a-30-year-single-institution-experience
#20
J A W Hagemans, S E Blinde, J J Nuyttens, W G Morshuis, M A M Mureau, J Rothbarth, C Verhoef, J W A Burger
BACKGROUND: Failure of chemoradiotherapy (CRT) for anal squamous cell carcinoma (SCC) results in persistent or recurrent anal SCC. Treatment with salvage abdominoperineal resection (APR) can potentially achieve cure. The aims of this study are to analyze oncological and surgical outcomes of our 30-year experience with salvage APR for anal SCC after failed CRT and identify prognostic factors for overall survival (OS). METHODS: All consecutive patients who underwent salvage APR between 1990 and 2016 for histologically confirmed persistent or recurrent anal SCC after failed CRT were retrospectively analyzed...
April 24, 2018: Annals of Surgical Oncology
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