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化工矿山译丛 1991年第2期 20-23页

作者： Madd.,ca 薛玫芸

Association of Congenital Heart Defects (CHD) with Factors Related to Maternal Health and Pregnancy in newborns in Puerto Rico

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Congenital Heart Disease 2024年第1期19卷 19-31页

作者： Yamixa Delgado caliani Gaytan naydi Perez Eric Miranda Bryan Colón Morales Mónica Santos Biochemistry&Pharmacology Department San Juan Bautista School of MedicineCaguas00726Puerto Rico Hispanic Alliance for Clinical and Translational Research University of Puerto Rico Medical Sciences CampusSan Juan00936Puerto Rico Department of Internal Medicine University of Puerto Rico Medical Sciences CampusSan Juan00936Puerto Rico

Background:Given the pervasive issues of obesity and diabetes both in Puerto Rico and the broader United States,there is a compelling need to investigate the intricate interplay among body mass index(BMI),pregesta-tional,and gestational maternal diabetes,and their potential impact on the occurrence of congenital heart defects(CHD)during neonatal ***:Using the comprehensive System of Vigilance and Surveillance of Congenital Defects in Puerto Rico,we conducted a focused analysis on neonates diagnosed with CHD between 2016 and *** assessment encompassed a range of variables,including maternal age,gestational age,BMI,pregestational diabetes,gestational diabetes,hypertension,history of abortion,and presence of ***:A cohort of 673 patients was included in our *** average maternal age was 26 years,within a range of 22 to 32 *** mean gestational age measured 39 weeks,with a median span of 38 to 39 *** the 673 patients,274(41%)mothers gave birth to neonates diagnosed with *** this group,22 cases were linked to pre-gestational diabetes,while 202 were not;20 instances were associated with gestational diabetes,compared to 200 without;and 148 cases exhibited an overweight or obese BMI,whereas 126 displayed a normal ***:We identiﬁed a statistically signiﬁcant correlation between pre-gestational diabetes mellitus and the occurrence of ***,our analysis did not show a statistically signiﬁcant association between maternal BMI and the likelihood of *** results may aid in developing effective strategies to prevent and manage CHD in neonates.

关键词： Congenital heart defects(CHD) obesisty maternal health diabetes body mass index(BMI)

Inheritance and allelism of morphological traits in eastern redbud (Cercis canadensis L.)

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Horticulture Research 2015年第1期2卷 73-83页

作者： David J.Roberts Dennis J.Werner Phillip A.Wadl Robert n.Trigiano Department of Horticultural Science North Carolina State UniversityBox 7609Raleigh27695-7609NCUSA Department of Entomology and Plant Pathology University of Tennessee2505 E.J.Chapman Dr.370 Plant Biotechnology Bldg.Knoxville37996TNUSA

Inheritance of purple,gold,and variegated foliage types,weeping architecture,and double flower was explored in F1,F2,and backcross families resulting from controlled hybridization of eastern redbud(Cercis canadensis L.).Potential allelic relationships were explored when *** analysis in families derived from controlled hybridization of‘Covey’(green leaf)and‘Forest Pansy’(purple leaf)suggest that purple leaf color and weeping architecture are both controlled by single recessive genes,for which the symbols pl1 and wp1 are proposed,*** of gold leaf was explored in families of‘Covey’(green leaf)×‘Hearts of Gold’(gold leaf).Interpretation of inheritance of gold leaf in these families was confounded by the recovery of a leaf color phenotype in the F2 family unlike either ***,data suggested the action of a single locus controlling gold leaf color in‘Hearts of Gold’,and that instability of gold leaf expression may be based on transposable element *** of gold leaf in the F2 families of‘Texas White’[green leaf(*** ***)]×‘Jn2’[gold leaf(The Rising Sun)]did not fit a Mendelian *** of progeny of‘Silver Cloud’and‘Floating Clouds’(both showing white/green leaf variegation)with non-variegated cultivars demonstrated that variegation in‘Silver Cloud’is controlled by a single recessive nuclear gene,while variegation in‘Floating Clouds’is controlled by cytoplasmic *** symbol var1 is proposed for the gene controlling variegation in‘Silver Cloud’.Double flower in progeny derived from‘Flame’(double flower)suggested that double flower is dominant to single flower,and that‘Flame’is heterozygous at the double-flower locus,for which the symbol Df1 is *** studies showed that the gene controlling purple leaf in‘Forest Pansy’is allelic to the purple leaf gene in‘Greswan’and that the gene controlling weeping phenotype in‘Traveller’(*** ***)is non-allelic to the wee

关键词： Inheritance Silver symbol

HYDROBORATIOn OF ALKYnES WITH DICHLOROBORAnE-DIMETHYL SULFIDE——SYnTHESES AnD SPECTROSCOPIC CHARACTERISTICS OF gem-DIBOROn AnD ALKEnYLBOROn COMPOUnDS

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Science in China,Ser.B 1987年第12期30卷 1233-1246页

作者：赵德杰 P.n.GATES P.S.JOnES Department of Chemistry Wuhan University Royal Holloway College University of London

The reactions of alkynes with dichloroborane-dimethyl sulfide （HBCl2·SMe2） in the presence of boron trichtoride in pentane have been *** internal and terminal alkynes react with HBCl2·SMe2 in the molar ratio 1:2 at 0℃ to give dihydroborating products, gem-bis （dichloroboryl）alkanes, in good yield. Since the dihydroboration of alkynes is suppressed considerably at lower temperature, the internal alkynes and HBCl2·SMe2 react quantitatively in the molar ratio 1.4:1 at-20℃ or -30℃ to give the expected *** the same conditions,the terminal alkynes, however, undergo both monohydroboration and *** terminal alkynes react with boron trichloride in the molar ratio 1 :1.1 in pentane, the chloroborating products, 2-chloro-1-alkenyldichloroboranes have been obtained in high *** dichloroboranes are readily converted by alcoholysis into the corresponding boronic *** resulting compounds have been characterized by IR, 1H,11B, and 13C n

关键词： ppm SM BCI HYDROBORATIOn OF ALKYnES WITH DICHLOROBORAnE-DIMETHYL SULFIDE SYnTHESES AnD SPECTROSCOPIC CHARACTERISTICS OF gem-DIBOROn AnD ALKEnYLBOROn COMPOUnDS OCH HBC

Giant magnetoresistance in Fe/SiO_2/p-Si hybrid structure under non-equilibrium conditions

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Transactions of nonferrous Metals Society of China 2014年第10期24卷 3158-3163页

作者： n.V.VOLKOV A.S.TARASOV A.O.GUSTAJCEV O.n.VOLKOVA S.n.VARnAKOV S.G.OVCHInnIKOV Kirensky Institute of Physics Russian Academy of SciencesSiberian Branch Krasnoyarsk 660036 Russia Institute of Engineering Physics and Radio Electronics Siberian Federal University Krasnoyarsk 660041 Russia Institute of Engineering Physics and Radio Electronics Siberian Federal University Krasnoyarsk 660041Russia

The giant magnetoresistive（MR） effect was investigated in a simple Fe/Si O2/p-Si-hybrid-structure-based device from two back-to-back Schottky diodes. The effect was revealed only under the non-equilibrium conditions caused by optical radiation. It is demonstrated that the magnetoresistance ratio attains 100 or more. The main peculiarity of the MR behavior is its strong dependence on the magnitude and the sign of the bias current across the device and, most surprisingly, upon polarity of the magnetic field. It is important that the magnetoresistive effect is implemented exclusively in the subsystem of minority charge carriers transferred to the non-equilibrium states. The development of magneto-sensitive devices of this type can give grounds for a novel direction of semiconductor spintronics.

关键词： magnetoresistance hybrid structure Schottky diode

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乳胶室实验中X光片的本底与能量定标

高能物理与核物理 1989年第11期13卷 967-972页

作者：邱进发中国科学院高能物理研究所

对各年度(K0—K7)X光片的本底黑度D_B进行了测量,给出了D_B和能量定标黑度值D_1的关系.对X光片本底的各种分布也作了测量,测量结果可作为能量定标和乳胶室实验其它方面的参数.

关键词：乳胶室 X光片本底能量宇宙线

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塑料薄膜的扩散研究_1：用同位素示踪技术研究乙醇和月桂酸...

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塑料开发 1989年第3期16卷 11-14页

作者：董炎明 Bars.,ca

Complex causes and consequences of rangeland greening in South America -multiple interacting natural and anthropogenic drivers and simultaneous ecosystem degradation and recovery trends

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Geography and Sustainability 2020年第4期1卷 304-316页

作者： Wang Li Robert Buitenwerf Renata nicora Chequín Javier Elias Florentín Roberto Manuel Salas Julia carolina Mata Li Wang Zheng niu Jens-Christian Svenning Center for Biodiversity Dynamics in a Changing World(BIOCHAnGE) Aarhus UniversityNy Munkegade 114Aarhus C 8000Denmark Section for Ecoinformatics and Biodiversity Department of BiologyAarhus UniversityNy Munkegade 114Aarhus C 8000Denmark State Key Laboratory of Remote Sensing Science Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100101China Instituto de Botánica del nordeste(COnICET-UnnE) Sargento Cabral 2131c.c.209C.P.3400Argentina University of Chinese Academy of Sciences Beijing 100049China

Land-surface greening has been reported globally over the past *** often seen to represent ecosystem recovery,the impacts on biodiversity and society can also be *** has been widely reported from rangelands,where drivers and processes are complex due to its high environmental heterogeneity and societal ***,we assess the complexity behind greening and assess its links to various drivers in an iconic,heterogeneous rangeland area,the IberáWetlands and surroundings,in ***-series satellite imagery over the past 19 years showed overall net greening,but also substantial local browning both in protected and unprotected areas,linking to land use,temporal changes in surface water,fire,and *** found substantial woody expansion mainly in the unprotected land,with 37%contributed by tree plantations and the remaining 63%by spontaneous woody expansion,along with widespread transitions from terrestrial land to seasonal surface *** occurrences tended to reduce greening with unprotected areas experiencing widespread and frequent ***,protected areas had more browning in unburnt areas than burned *** variation in annual precipitation and temperature tended to nonlinearly influence fire occurrences with an interplay of human fire management,further shaping the vegetation greening,pointing to high complexity behind the observed rangeland greening involving interactions among local *** findings highlight that the observed overall greening is an outcome of multiple trends with clear negative impacts on biodiversity and the local livestock-oriented culture(notably expanding tree plantations)and spontaneous vegetation dynamics,partly involving spontaneous woody *** latter has positive potential for biodiversity and ecosystem services in terms of woodland recovery,but can become negative in such a natural savanna region if expansions develop on a too broad scale,highlighting the importance of ensu

关键词： South America Rangeland Vegetation greening Climate change Sustainability Remote sensing

Semi-exact Solutions of Konwent Potential

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Communications in Theoretical Physics 2019年第2期71卷 231-236页

作者： Qian Dong Shi-Shan Dong Eduardo Hernández-Márquez Ramón Silva-Ortigoza Guo-Hua Sun Shi-Hai Dong Laboratorio de Informaci′on Cu′antica CIDETECInstituto Polit′ecnico NacionalUPALMCDMX 07700Mexico Information and Engineering College Dalian UniversityDalian 116622China ′Area de Mecatr′onica CIDETECInstituto Polit′ecnico NacionalUPALMCDMX 07700Mexico catedr′atica COnACYT CICInstituto Polit′ecnico NacionalCDMX 07738Mexico

In this work we study the quantum system with the symmetric Konwent potential and show how to find its exact solutions. We find that the solutions are given by the confluent Heun function. The eigenvalues have to be calculated numerically because series expansion method does not work due to the variable z ≥ 1. The properties of the wave functions depending on the potential parameter A are illustrated for given potential parameters V_0 and a. The wave functions are shrunk towards the origin with the increasing |A|. In particular, the amplitude of wave function of the second excited state moves towards the origin when the positive parameter A decreases. We notice that the energy levels ε_i increase with the increasing potential parameter |A| ≥ 1, but the variation of the energy levels becomes complicated for |A| ∈(0, 1), which possesses a double well. It is seen that the energy levels ε_i increase with |A| for the parameter interval A ∈(-1, 0), while they decrease with |A| for the parameter interval A ∈(0, 1).

关键词： exact solution Konwent potential confluent Heun function double well potential

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Interindividual Age-Independent Differences in Human CX43 Impact Ventricular Arrhythmic Risk

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Research 2024年第3期6卷 417-432页

作者： Laura García-Mendívil María Pérez-Zabalza Antoni Oliver-Gelabert JoséMaría Vallejo-Gil Javier Fañanás-Mastral Manuel Vázquez-Sancho Javier AndréBellido-Morales Alexánder Sebastián Vaca-núñez carlos Ballester-Cuenca Emiliano Diez Laura Ordovás Esther Pueyo Biomedical Signal Interpretation and Computational simulation group(BSICoS) Aragón Institute of Engineering ResearchUniversity of ZaragozaZaragoza 50018Spain BSICoS Instituto de Investigación Sanitaria Aragón(IISA)Zaragoza 50018Spain Centro Universitario de la Defensa(CUD) Zaragoza 50090Spain. Department of cardiovascular Surgery University Hospital Miguel ServetZaragoza 50009Spain. Institute of Experimental Medicine and Biology of Cuyo(IMBECU) CONICETMendoza 5500Argentina. Fundación Agencia Aragonesa para la Investigación y el Desarrollo(ARAID) Zaragoza 50018Spain. Biomedical Research networking Center in Bioengineering Biomaterials and Nanomedicine(CIBER-BBN)Zaragoza 50018Spain.

Connexin 43 (CX43) is one of the major components of gap junctions, the structures responsible for the intercellular communication and transmission of the electrical impulse in the left ventricle. There is limited information on the histological changes of CX43 with age and their effect on electrophysiology, especially in humans. Here, we analyzed left ventricular biopsies from living donors starting at midlife to characterize age-related CX43 remodeling. We assessed its quantity, degree of lateralization, and spatial heterogeneity together with fibrotic deposition. We observed no significant age-related remodeling of CX43. Only spatial heterogeneity increased slightly with age, and this increase was better explained by biological age than by chronological age. Importantly, we found that CX43 features varied considerably among individuals in our population with no relevant relationship to age or fibrosis content, in contrast to animal species. We used our experimental results to feed computational models of human ventricular electrophysiology and to assess the effects of interindividual differences in specific features of CX43 and fibrosis on conduction velocity, action potential duration, and arrhythmogenicity. We found that larger amounts of fibrosis were associated with the highest arrhythmic risk, with this risk being increased when fibrosis deposition was combined with a reduction in CX43 amount and/or with an increase in CX43 spatial heterogeneity. These mechanisms underlying high arrhythmic risk in some individuals were not associated with age in our study population. In conclusion, our data rule out CX43 remodeling as an age-related arrhythmic substrate in the population beyond midlife, but highlight its potential as a proarrhythmic factor at the individual level, especially when combined with increased fibrosis.

关键词： CX43 rhythm Independent