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https://www.readbyqxmd.com/read/29692094/-dynamics-of-and-relationship-between-fat-accumulation-and-enzyme-activities-of-precocious-walnut
#1
Shuang Zhao, Yang Liu, Han Li, Yi Lan Chen, Bao Guo Li, Guo Hui Qi, Xue Mei Zhang
Two precocious walnut varieties, Lvling and Lvzao were used as materials in this study, the kernel fat contents and 3 related enzyme activities in different development periods after flowe-ring 50 days were analyzed. The key enzymes affecting walnut fat in different periods were illumina-ted. The results showed that the kernel fat accumulation trends of the two varieties were basically the same. The kernel began to solidify 50 days after flowering, and the increase in kernel fat content was rapid 60-90 days after flowering, slowed down 90-120 days after flowering, and stopped 120-130 days after flowering...
November 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692090/-spatial-point-pattern-analysis-of-main-trees-and-flowering-fargesia-qinlingensis-in-abies-fargesii-forests-in-mt-taibai-of-the-qinling-mountains-china
#2
Guo Chun Li, Hua Dong Song, Qi Li, Shu Hai Bu
In Abies fargesii forests of the giant panda's habitats in Mt. Taibai, the spatial distribution patterns and interspecific associations of main tree species and their spatial associations with the understory flowering Fargesia qinlingensis were analyzed at multiple scales by univariate and bivaria-te O-ring function in point pattern analysis. The results showed that in the A. fargesii forest, the number of A. fargesii was largest but its population structure was in decline. The population of Betula platyphylla was relatively young, with a stable population structure, while the population of B...
November 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692077/-spatial-temporal-pattern-of-sustainable-intensification-of-agricultural-land-use-in-shandong-province-china
#3
Shan Dong Niu, Xiao Lyu, Yang Yang Shi
Under the theoretical framework of sustainable intensification of agricultural land-use (SIALU), We used material flow analysis (MFA) method to establish evaluation index system for SIALU by utilizing data in 2000, 2005, 2010 and 2015 to quantify the level of SIALU of 17 cities in Shandong Province, and analyzed the variation in input-output of resources factors of agricultural land, spatial distribution of resource productivity and environmental economic efficiency, in order to reveal spatial-temporal differentiation of SIALU...
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/29692054/-dynamic-change-of-pinus-tabuliformis-forest-productivity-and-its-response-to-future-climate-change-in-shaanxi-province-china
#5
Xiao Ying Huo, Shou Zhang Peng, Jing Yu Ren, Yang Cao, Yun Ming Chen
This study analyzed the dynamics of net primary productivity (NPP) of Pinus tabuliformis forest under future climate scenarios in Shaanxi Province during 2015-2100, using a dynamic vegetation model (LPJ-GUESS). The results showed that in the 2015-2100 period, annual mean temperature of this region would significantly increase by 0.12, 0.23 and 0.54 ℃·10 a-1 under RCP2.6 , RCP4.5 and RCP8.5 scenarios, respectively, while the annual precipitation would have no significant change under climate scenarios except RCP4...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692033/-spatial-interpolation-model-of-soil-organic-carbon-density-considering-land-use-and-spatial-heterogeneity
#6
Zi Hao Wu, Yan Fang Liu, Yi Yun Chen, Long Guo, Qing Hu Jiang, Shao Chen Wang
Soil organic carbon pool is an important component of terrestrial carbon pool. Soil organic carbon pool and its dynamic change have important influence on carbon cycle in terrestrial ecosystem. Soil organic carbon density (SOCD) is an important parameter of soil carbon storage, and it is also an important index to evaluate farmland soil quality. Accurate prediction of regional organic carbon density spatial distribution is of great significance to the development of precision agriculture. A total of 242 farmland soil samples collected from the Jianghan Plain were used to explore the effects of land use types on the spatial distribution of SOCD in plain areas...
January 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692009/-storage-of-carbon-and-nitrogen-in-quercus-and-platycladus-orientalis-plantations-at-different-ages-in-the-hilly-area-of-western-henan-province-china
#7
Yan Fang Wang, Ling Liu, Zhi Chao Li, Xiao Feng Shi, Xiao Yan Yang, Zhou Ping ShangGuan
In the study, the method of space substituting time was used to investigate the distribution pattern of carbon and nitrogen storages in Quercus and Platycladus orientalis plantation ecosystems at different ages in hilly area of western Henan Province, China. We also analyzed the dynamic changes of soil carbon and nitrogen storages in different soil layers in the two plantation ecosystems. The results showed that the carbon storage in the arbor and litter layers increased with the increasing tree age. The storage of carbon and nitrogen in soil aggregated mainly in the surface layer and showed a trend of decrease-increase-decrease with the increasing tree age in all soil layers...
January 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29691995/phylogeography-of-h5n1-avian-influenza-virus-in-indonesia
#8
E N Njoto, M Scotch, C M Bui, D C Adam, A A Chughtai, C R MacIntyre
Highly pathogenic avian influenza (HPAI) viruses of the H5N1 subtype are a major concern to human and animal health in Indonesia. This study aimed to characterize transmission dynamics of H5N1 over time using novel Bayesian phylogeography methods to identify factors which have influenced the spread of H5N1 in Indonesia. We used publicly available hemagglutinin sequence data sampled between 2003 and 2016 to model ancestral state reconstruction of HPAI H5N1 evolution. We found strong support for H5N1 transmission routes between provinces in Java Island and inter-island transmissions, such as between Nusa Tenggara and Kalimantan Islands, not previously described...
April 24, 2018: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29691972/separation-of-acetylene-from-carbon-dioxide-and-ethylene-by-a-water-stable-microporous-metal-organic-framework-with-aligned-imidazolium-groups-inside-the-channels
#9
Jaechul Lee, Chong Yang Chuah, Jaheon Kim, Youngsuk Kim, Nakeun Ko, Younggyu Seo, Kimoon Kim, Taehyun Bae, Eunsung Lee
Separation of acetylene from carbon dioxide and ethylene is challenging in view of their similar sizes and physical properties. Metal-organic frameworks (MOFs) in general present themselves to be strong candidates for these separations owing to the presence of functional pore surfaces that can selectively capture a specific target molecule. Here, we report a novel 3D microporous cationic framework named JCM-1, which possesses imidazolium functional groups on the pore surfaces and pyrazolate as a metal binding group which is well known to form strong metal to ligand bond...
April 24, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29691958/brain-based-treatment-a-new-approach-or-a-well-forgotten-old-one
#10
Vanya Matanova, Zlatomira Kostova, Martin Kolev
For a relatively long period of time, mental functioning was mainly associated with personal profile while brain functioning went by the wayside. After the 90s of the 20th century, or the so called "Decade of the Brain", today, contemporary specialists work on the boundary between fundamental science and medicine. This brings neuroscience, neuropsychology, psychiatry, and psychotherapy closer to each other. Today, we definitely know that brain structures are being built and altered thanks to experience...
April 24, 2018: Journal of Evaluation in Clinical Practice
https://www.readbyqxmd.com/read/29691949/fronto-parietal-subnetworks-flexibility-compensates-for-cognitive-decline-due-to-mental-fatigue
#11
Fumihiko Taya, Stavros I Dimitriadis, Andrei Dragomir, Julian Lim, Yu Sun, Kian Foong Wong, Nitish V Thakor, Anastasios Bezerianos
Fronto-parietal subnetworks were revealed to compensate for cognitive decline due to mental fatigue by community structure analysis. Here, we investigate changes in topology of subnetworks of resting-state fMRI networks due to mental fatigue induced by prolonged performance of a cognitively demanding task, and their associations with cognitive decline. As it is well established that brain networks have modular organization, community structure analyses can provide valuable information about mesoscale network organization and serve as a bridge between standard fMRI approaches and brain connectomics that quantify the topology of whole brain networks...
April 24, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29691942/phenological-sensitivity-to-climate-change-is-higher-in-resident-than-in-migrant-bird-populations-among-european-cavity-breeders
#12
Jelmer M Samplonius, Lenka Bartošová, Malcolm D Burgess, Andrey V Bushuev, Tapio Eeva, Elena V Ivankina, Anvar B Kerimov, Indrikis Krams, Toni Laaksonen, Marko Mägi, Raivo Mänd, Jaime Potti, János Török, Miroslav Trnka, Marcel E Visser, Herwig Zang, Christiaan Both
Many organisms adjust their reproductive phenology in response to climate change, but phenological sensitivity to temperature may vary between species. For example, resident and migratory birds have vastly different annual cycles, which can cause differential temperature sensitivity at the breeding grounds, and may affect competitive dynamics. Currently, however, adjustment to climate change in resident and migratory birds have been studied separately or at relatively small geographical scales with varying time series durations and methodologies...
April 6, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29691935/mitochondria-and-wolbachia-titers-are-positively-correlated-during-maternal-transmission
#13
Lucas P Henry, Irene L G Newton
Mothers provide their offspring with symbionts. Maternally transmitted, intracellular symbionts must disperse from mother to offspring with other cytoplasmic elements, like mitochondria. Here, we investigated how the intracellular symbiont Wolbachia interacts with mitochondria during maternal transmission. Mitochondria and Wolbachia may interact antagonistically and compete as each population tries to ensure its own evolutionary success. Alternatively, mitochondria and Wolbachia may cooperate as both benefit from ensuring the fitness of the mother...
April 25, 2018: Molecular Ecology
https://www.readbyqxmd.com/read/29691932/selective-synthesis-of-perfluoroalkylated-corannulenes-and-investigation-of-their-structural-dynamic-and-electrochemical-behavior
#14
Axel Haupt, Lisa-Marie Keller, Maximilian Kutter, Dieter Lentz
Herein we report general methods allowing the synthesis of various perfluoroalkylated corannulenes with a specific substitution pattern. Variable temperature NMR spectroscopic investigations revealed dynamic behavior which was analyzed by line shape analysis. The activation parameters of these dynamic processes were determined. For a tetrasubstituted compound it was possible to observe through space scalar coupling. The packing motifs were elucidated by X-ray crystallography, showing that the substitution pattern as well as the size of substituents strongly influence intermolecular Π-stacking...
April 25, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29691912/effect-of-hybridization-with-genome-exclusion-on-extinction-risk
#15
Claudio S Quilodrán, Mathias Currat, Juan I Montoya-Burgos
Human-induced habitat changes may lead to the breakdown of reproductive barriers between distantly related species. This phenomenon may result in fertile first-generation hybrids (F1 ) that exclude the genome of one parental species during gametogenesis, thus disabling introgression. The species extinction risk associated with hybridization with genome exclusion is largely underappreciated because the phenomenon produces only F1 hybrid phenotype, leading to the misconception that hybrids are sterile and potentially of minor conservation concern...
April 24, 2018: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/29691908/expression-of-cutaneous-immunity-markers-during-infant-skin-maturation
#16
Frank Kirchner, Kimberly A Capone, M Catherine Mack, Georgios N Stamatas
BACKGROUND/OBJECTIVES: Infant skin undergoes a maturation process during the early years of life. Little is known about the skin's innate immunity. We investigated the dynamics of innate immunity markers collected from the surface of infant skin during the first 36 months of life. METHODS: A total of 117 healthy infants aged 3-36 months participated in the study. We extracted human beta defensin-1 and interleukin 1 alpha and its receptor antagonist using transdermal analysis patches from the skin surface of the posterior lower leg area...
April 25, 2018: Pediatric Dermatology
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
#17
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/29691889/ecological-risk-assessment-of-perfluooroctane-sulfonate-pfos-to-aquatic-fauna-from-a-bayou-adjacent-to-former-fire-training-areas-at-a-u-s-air-force-installation
#18
Christopher J Salice, Todd A Anderson, Richard H Anderson, Adric D Olson
Per- and polyfluoroalkyl substances (PFASs) continue to receive significant attention with particular concern for PFASs such as perfluorooctane sulfonate (PFOS) which was a constituent of Aqueous Film-Forming Foam used widely as a fire suppressant for aircraft since the 1970 s. We were interested in the potential for risk to ecological receptors inhabiting Cooper Bayou which is adjacent to two former fire-training areas (FTAs) at Barksdale Air Force Base, LA. Previous research showed higher PFOS concentrations in surface water and biota from Cooper Bayou compared to reference sites...
April 25, 2018: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29691811/chemico-calorimetric-analysis-of-amorphous-granules-manufactured-via-continuous-granulation-process
#19
Mridul Majumder, Saeid Rajabnezhad, Ali Nokhodchi, Mohammed Maniruzzaman
The current study explores the first case of the implementation of solution calorimetry (SolCal) in order to determine the amorphous content of crystalline benzoyl-methoxy-methylindol-acetic acid (BMA)-a model poorly soluble drug, in the amorphous granules prepared via single-step continuous twin-screw dry granulations (TSG). Amorphous magnesium aluminometasilicate (Neusilin®) (US2) was used as a novel inorganic carrier via a TwinLab 10 mm twin-screw extruder. The BMA/US2 blends were processed at 180 °C and varying drug: carrier ratios of 1:4, 1:2...
April 24, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/29691787/the-role-of-circle-of-willis-anatomy-variations-in-cardio-embolic-stroke-a-patient-specific-simulation-based-study
#20
Debanjan Mukherjee, Neel D Jani, Jared Narvid, Shawn C Shadden
We describe a patient-specific simulation based investigation on the role of Circle of Willis anatomy in cardioembolic stroke. Our simulation framework consists of medical image-driven modeling of patient anatomy including the Circle, 3D blood flow simulation through patient vasculature, embolus transport modeling using a discrete particle dynamics technique, and a sampling based approach to incorporate parametric variations. A total of 24 (four patients and six Circle anatomies including the complete Circle) models were considered, with cardiogenic emboli of varying sizes and compositions released virtually and tracked to compute distribution to the brain...
April 24, 2018: Annals of Biomedical Engineering
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