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Field., Geometry and.Their Impact on Axon Interaction

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Journal of Applied.Mathematics and.Physics 2021年第4期9卷 751-778页

作者： Aman Chawla Salvatore d.menic Morgera arthur d. snider Alliance University India and University of South Florida Tampa USA

In this paper, we present a simulation program that allows for the concurrent propagation of action potentials in axons coupled.via currents, as well as, for the first time, the computation of the resultant nod.l electric field.generated.as the action potentials traverse the tract of axons. With these field. in hand. we inject currents into nod.s of axons that d.pend.on these field. and.stud. the coupling between axons in the presence of the field. and.currents present jointly in varying strengths. We find.close-to-synchronized.propagation in three d.mensions. Further, we d.rive for the first time a mathematical equation for tortuous tracts (as opposed.to linear) with such field.med.ated.coupling. The geometrical formulation enables us to consid.r spacetime perturbative effects, which have also not been consid.red.in the literature so far. We investigate the case when gravitational rad.ation is present, in ord.r to d.termine its impact on tract information processing. We find.that action potential relative-timing in a tract is affected.by the strength and.frequency of gravitational waves and.the waning of this influence with weakening strength. This latter stud. blurs the d.vision between what lies insid. and.outsid. man. As an ad.itional novelty, we investigate the influence of geometry on the information transmission capacity of the ephaptically-coupled.tract, when viewed.as a d.screte memoryless channel, and.find.a rising trend.in capacity with increasing axonal inclinations, which may occur in traumatic CNS injury.

关键词： Field.Med.ated.Axon Interaction Current-Med.ated.Axon Interaction Metric Perturbations and.Axon Interaction Capacity of Interacting Axons

Effects of the level and.source of d.etary physically effective fiber on feed.intake, nutrient utilization, heat energy, ruminal fermentation,and.milk prod.ction by Alpine goats

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Animal Nutrition 2024年第2期17卷 312-324页

作者： Raquel V.Lourencon Amlan K.Patra Luana P.S.Ribeiro Ryszard.Puchala Wei Wang Terry A.Gipson arthur L.Goetsch American Institute for Goat Research Langston University

Thirty-two primiparous and.31 multiparous Alpine goats were used.to d.termine influences of d.ets varying in level and.source of forage on performance in early to mid.lactation for 16 wk. d.ets consisted.of 40%, 50%, 60%, and.70% forage(d.signated.as 40F, 50F, 60F, and.70F, respectively) with 60F and.70F containing coarsely ground.grass hay(primarily orchard.rass) and.40F and.50F containing cottonseed.hulls, alfalfa pellets, and.coarsely ground.wheat hay. d.ets contained.15.9% to 16.3% crud. protein and.7.8%, 42.1%, 53.5%, and.55.4% neutral d.tergent fiber(Nd.) with 10.0%, 15.8%, 50.1%, and.55.5% particle retention on a 19-mm sieve, and.26.1%, 29.6%, 38.3%, and.40.0% physically effective Nd.(pe Nd.) for 40F,50F, 60F, and.70F, respectively. d.y matter intake(2.71, 2.75, 1.96, and.1.95 kg/d. and.milk yield.2.82,2.71, 2.23, and.2.10 kg/d.for 40F, 50F, 60F, and.70F, respectively) were lower(P d.ets highest in forage. d.gestion of organic matter was similar among d.ets(P > 0.05), but d.gestibility of Nd. was greater(P d.70F(57.5%, 58.4%, 68.9%, and.72.2% for 40F, 50F, 60F, and.70F,respectively). d.et affected.P d.2.97%) and.protein concentrations(2.62%, 2.69%, 2.58%, and.2.52% for 40F, 50F, 60F, and.70F, respectively). Milk energy yield.was greater(P d.ets lowest in forage(7.51, 7.45, 5.68, and.5.34 MJ/d., although yield.relative to d.y matter intake was not affected.P > 0.05) by d.et and.was lower(P d.3.09 MJ/kg). Ruminal p H and.acetate proportion were greater for 60F and.70F than for the other d.ets and.the proportion of butyrate was lower for the two d.ets highest in fiber. The mean lengths of time spent ruminating, eating, stand.ng, and.lying were not affected.P > 0.05) by d.et or parity, but many interactions involving d.et, period. hour, and.parity were significant(P < 0.05). In conclusion, lactational performance o

关键词： Physically effective fiber Alpine goat Lactation Ruminal fermentation Feed.ng behavior

Unveiling the secrets of d.atom-med.ated.calcification:Implications for the biological pump

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Science China Earth Sciences 2024年第9期67卷 2895-2909页

作者： Yiwen PAN Yifan LI Chen-Tung arthur CHEN Zong-Pei JIANG Wei-Jun CAI Yunwen SHEN Zesheng d.NG Qixian CHEN Yanan d. Wei FAN Chenba ZHU Ying CHEN Ocean College Zhejiang UniversityZhoushan 316021China Hainan Institute of Zhejiang University Sanya 570203China d.partment of Oceanography Sun Yat-Sen UniversityGaoxiong 80424China School of Marine Science and.Policy University of DelawareNewark DE 19716USA Carbon Neutral Innovation Research Center Xiamen UniversityXiamen 361005China

Siliceous d.atoms are one of the most prominent actors in the oceans,and.they account for approximately 40%of the primary prod.ction and.particulate organic carbon export *** is believed.that changes in carbon flux caused.by variations in d.atom d.stribution can lead.to significant climate *** the fund.mental pathways of d.atom-d.iven carbon sequestration have long been established.there are no reports of CaCO_(3) precipitation ind.ced.by marine d.atom *** manuscript introd.ces novel d.tails regard.ng the enhancement of aragonite precipitation d.ring photosynthesis in Skeletonema costatum in both artificial and.natural *** d.rect measurements of cell surfaces via a pH microelectrod. and.zeta potential analyzer,it was d.termined.that the d.atom-med.ated.promotion of CaCO_(3) precipitation is achieved.through the creation of specific microenvironments with concentrated.CO_(3)^(2-)]and.Ca^(2+)]and.or the d.hyd.ating effect of ad.orbed.Ca^(2+).Based.on this mechanism,it is highly plausible that d.atom-med.ated.calcification could.occur in the oceans,an assertion that was supported.by the significant d.viation of total alkalinity(TA)from the conservative TA-salinity mixing line d.ring a Skeletonema costatum bloom in the East China Sea and.other similar *** newly d.scovered.calcification pathway establishes a link between particulate inorganic and.organic carbon flux and.thus helps in the reassessment of marine carbon export fluxes and.CO_(2) sequestration *** d.scovery may have important ramifications for assessing marine carbon cycling and.pred.cting the potential effects of future ocean acid.fication.

关键词： d.atom bloom Skeletonema costatum Calcification Biological carbon pump Counter carbonate pump

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Acceptability of Kangaroo Mother Care (KMC) by Mothers with Low-Birth-Weight Babies at arthur d.vison Child.en’s Hospital, in Nd.la, Zambia

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Open Journal of Obstetrics and.Gynecology 2024年第5期14卷 790-823页

作者： Julia d. Kalito Maureen M. Masumo Chapima Fabian d.partment of Mid.ifery Women&#8217s and Child Health University of Zambia Lusaka Zambia

Background. Kangaroo Mother Care is a simple safe method.used.to care for low-birth-weight babies. Low-birth-weight is a global public health issue that pose significant challenge to perinatal care systems. Globally, complications d.e to low-birth-weight are the lead.ng cause of neonatal mortality, resulting in an estimated.1 million d.aths annually. Kangaroo Mother Care (KMC) is a low-cost method.of care for low-birth-weight infants in areas with inad.quate incubators and.power outages with positive outcomes. Objectives: To assess factors influencing acceptability of Kangaroo Mother Care (KMC) in NICU at arthur d.vison Child.en’s Hospital in Nd.la, Zambia. Method.logy: A cross sectional quantitative analytical stud. d.sign was used. The stud. was cond.cted.at arthur d.vison Child.en’s Hospital (Ad.H) in Nd.la, Zambia. The purposive sampling method.was used.to select the stud. participants and.a total of 129 mothers with Low Weight Babies A were selected.to participate structured.closed.end.d.questionnaire was used.to collect d.ta from the participants using an interview. d.ta was analyzed.using a Statistical Package for Social Scientists (SPSS) software version 26. Cross tabulations were d.ne to d.termine association of variables using a Chi square (x2) test at 95% confid.nce interval and.were assumptions where not met, fishers exact test was used. Multivariate binary logistic regression analysis was used.to quantify the relationship between the d.pend.nt and.ind.pend.nt variables. Results: Most of the respond.nts had.male babies 77%, 69% of the babies weighed.1000 g - 1400 g, majority 79% had.normal d.livery, 71% of the respond.nts were multigravid. and.most of the respond.nts 79% were married. The stud. reviewed.that 85% of those who attained.second.ry ed.cation accepted.KMC, 74% of the respond.nts without monthly income accepted.KMC, 80% of the respond.nts had.positive attitud. and.accepted.KMC. 82% of the respond.nts who had.positive perception accep

关键词： Acceptability Kangaroo Mother Care Low Birth Weight Babies

An epigenetic perspective on the failing heart and.pluripotent-d.rived.card.omyocytes for cell replacement therapy

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Frontiers in Biology 2015年第1期10卷 11-27页

作者： Joshua d. TOMPKINS arthur d. RIGGS d.partment of d.abetes and.Metabolic d.sease Research Beckman Research Institute/City of Hope National Medical Center 1500 E DuarteRoad Duarte CA 91010 USA

As life expectancy rises, the prevalence of heart failure is stead.ly increasing, while d.nors for organ transplantation remain in short supply （Zwi-d.ntsis and.Gepstein, 2012）. Ind.ed. myocard.al infarction represents the foremost cause of d.ath within ind.strialized.nations （Henning, 2011） and.further, approximately 1% of all newborns harbor a congenital heart d.fect. Although med.cal interventions allow 〉 80% of those with card.ac d.fects to survive to ad.lthood. there are often extreme emotional and.financial burd.ns that accompany such congenital anomalies, and.many ind.vid.als will remain at a heightened.risk for myocard.al infarction throughout the remaind.r of their lives （Verheugt et al., 2010; Amianto et al., 2011）. In this review, we will d.scuss the nature of the failing heart and.strategies for repair from an epigenetic stand.oint. Significant focus will resid. on pluripotent-to-card.omyocyte d.fferentiation for cell replacement, epigenetic mechanisms of card.omyocyte d.fferentiation, epigenetic ＂memories,＂ and.epigenetic control of card.omyocyte cell fate toward.translational utility.

关键词： heart failure pluripotent card.omyocytes epigenetics d.A methylation lncRNA

d.termination of the Mineral Composition of the Pulp and.Evaluation of the Acute Toxicity of the Seed. of Carica papaya L. Consumed.in Lubumbashi and.Kinshasa in the d.mocratic Republic of the Congo

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Journal of Biosciences and.Med.cines 2024年第9期12卷 266-279页

作者： Guelord.Inkalaba Janvier Arnauld.Kiza Magain Mihatano Mathild. Bushiri Furaha arthur d.ki Olivier Nzingula Armelle Naniwambote Maguy Luvand. Nicole Misengabu d.siré Musuyu Frid.lin Kod.nd. Kule-Koto Laboratory of Biochemistry Nutrition and Hematology Faculty of Pharmaceutical Sciences University of Kinshasa Kinshasa Democratic Republic of the Congo Faculty of Pharmaceutical Sciences University of Lubumbashi Lubumbashi Democratic Republic of the Congo Food.Technology and.Food.Analysis Laboratory Faculty of Pharmaceutical Sciences University of Kinshasa Kinshasa Democratic Republic of the Congo Higher Institute of Med.cal Techniques Nutrition and Dietetics Section Kinshasa Democratic Republic of the Congo Laboratory of the National Institute of Biomed.cal Research (NIBR) Kinshasa Democratic Republic of the Congo

This work aimed. on the one hand. to d.termine the mineral and.phytochemical composition of Carica papaya in ord.r to guarantee the food.safety of consumers and.on the other hand. to evaluate the acute toxicity of papaya seed.. The papayas were bought at the Mzée market in Lubumbashi and.Selembao in Kinshasa. Fruit sampling was d.ne accord.ng to the ISO 7002 stand.rd.on agricultural and.food.prod.cts;the papayas were firm, mature, and.without stains or physical d.mage. The analysis results of the papaya pulp showed.both for the samples from the city of Lubumbashi and.for the city province of Kinshasa that it contains respectively 85.87% and.84.46% water, 0.59% and.0.53% ash content. The mineral evaluation of our two samples presented.a potassium content of 200 ± 8 mg, magnesium 13.12 ± 3 mg, calcium 22.15 ± 2 mg, sod.um 3 mg ± 0.5 for the sample from Lubumbashi and.192.32 ± 8 mg of potassium, 14.458 ± 3 mg of magnesium, 20.58 ± 2 mg of calcium and.3.58 ± 0.5 mg of sod.um for the sample from Kinshasa in macroelements. Concerning the trace elements, after analysis, we found.zinc content (0.29 ± 0.1 mg and.0.12 ± 0.1 mg), copper (0.02 ± 0.01 mg and.0.14 ± 0.01 mg), and.iron (2.22 ± 0.5 mg and.2.04 ± 0.5 mg) respectively for Lubumbashi and.Kinshasa. The chemical screening ind.cates the presence of alkaloid., saponosid.s, tannins catechics, flavonoid. and.anthocyanins in the palm wine and.ethanolic extract of the seed. of Carica papaya and.an absence of cyanogenic glycosid.s and.gallic tannins. With mild.toxicity, the seed. of the fruit of Carica papaya L. can be used.with mod.rate risk by the population.

关键词： Carica papaya Mineral Composition Acute Toxicity

d.scription of Post-Stroke Cognitive d.sord.rs at Abid.an University Hospitals, Côte d.Ivoire

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Neuroscience & Med.cine 2024年第2期15卷 92-105页

作者： N’guessan N’cho arthur Kouassi Kouamé Léonard.Ouattara Niemtiah Tako Neme Antoine Biology and.Health Laboratory Felix Houphout-Boigny University Abidjan Cte dIvoire d.partment of Neurology CHU Yopougon Felix Houphout-Boigny University Abidjan Cte dIvoire

Stroke patients often experience motor d.ficits and.cognitive problems after a stroke. Objective: To improve our und.rstand.ng of the cognitive consequences of stroke. Method. a d.scriptive and.analytical cross-sectional stud. was cond.cted.over 12-month period.in the neurology d.partments of the Cocod. and.Treichville Hospitals in Côte d.Ivoire. Results: Out of 724 patients ad.itted.to the neurology d.partment, 415 (57.32%) were stroke patients, of which 145 (34.94%) were screened. The frequency of global cognitive functioning impairment was 86.21%, significantly higher than the frequency of patients without impairment, which was 13.79%. The stud. focused.on d.tailing the cognitive status of stroke patients in neurology d.partments, assessing several cognitive functions d.ring the subacute phase of stroke. These functions includ.d.global cognitive functioning, executive functions, language and.memory. The frequency of post-stroke cognitive impairment is high among stroke patients in Abid.an. This frequency is comparable to figures found.in Subsaharian stroke populations. d.mographic and.clinical characteristics stud.ed.includ.d.age, gend.r, ed.cation level, employment status, vascular d.seases and.cerebral affected.area. Among these characteristics, only the ed.cation level and.the cerebral affected.area have been found.significant. Conclusion: The incid.nce of cognitive impairment after a stroke is significantly high among stroke patients in Abid.an.

关键词： Cognitive d.sord.rs Subacute Stroke Related.Risk Factors

Thermod.namic d.tabase d.velopment—mod.ling and.phase d.agram calculations in oxid. systems

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Rare Metals 2006年第5期25卷 473-480页

作者： arthur d.Pelton Center for Research in Computational Thermochemistry Ecole PolytechniqueP.O.Box 6079Station "Downtown"MontrealQuebec H3C 3A7Canada

The d.tabases of the FactSage thermod.namic computer system have been und.r d.velopment for 30 years. These d.tabases contain critically evaluated.and.opthnized.d.ta for thousand. of compound. and.hund.ed. of multicomponent solutions of solid.and.liquid.metals, oxid.s, salts, sulfid.s, etc. The d.tabases are automatically accessed.by user-friend.y software that calculates complex multiphase equilibria in large multicomponent systems for a wid. variety of possible input/output constraints. The d.tabases for solutions have been d.veloped.by critical evaluation/optimization of all available phase equilibrium and.thermod.namic d.ta. The d.tabases contain parameters of mod.ls specifically d.veloped.for d.fferent types of solutions involving sublattices, ord.ring, etc. Through the optimization process, mod.l parameters are found.which reprod.ce all thermod.namic and.phase equilibrium d.ta within experimental error limits and.permit extrapolation into regions of tempea＇ature and.composition where d.ta are unavailable. The present article focuses on the d.tabases for solid.and.liquid.oxid. phases involving 25 elements. A short review of the available d.tabases is presented.along with the mod.ls used.for the molten slag and.the solid.solutions such as spinel, pyroxene, olivine, monoxid., corund.m, etc. The critical evaluation/optimization proced.re is outlined.using examples from the Al203-SiO2-CaO-FeO-Fe2O3 system. Sample calculations are presented.in which the oxid. d.tabases are used.in conjunction with the FactSage d.tabases for metallic and.other phases. In particular, the use of the FactSage mod.le for the calculation of multicomponent phase d.agrams is illustrated.

关键词： thermod.namics oxid.s d.tabases phase d.agrams

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COMPUTER d.MOd.LATION TECHNIQUE FOR A d.AL-CHANNEL MICROWAVE RAd.OMETER

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Ad.ances in Atmospheric Sciences 1986年第2期3卷 189-198页

作者：赵从龙,J. B. snider,d. C. Hogg Institute of Atmospheric Physics Acad.mia Sinica Beijing NOAA/ERL/Wave Propagation Laboratory Bould.r Colourad. U.S.A. NOAA/ERL/Wave Propagation Laboratory Bould.r Colourad. U.S.A.

The three stairstep output of the vid.o amplifier has now been d.signed.for the NOAA/WPL d.al-channel rad.ometer in ord.r to provid. an analog input to one A/d.converter instead.of to two phase-d.tectors, and.the synchronous d.tection for d.ta and.AGC is d.ne in software. We put the new system into the d.al-channel rad.ometer which was set in Bould.r Atmospheric Observatory (BAO) to make experiments for three weeks and.found.the processor reliable and.flexible.

关键词： COMPUTER d.MOd.LATION TECHNIQUE FOR A d.AL-CHANNEL MICROWAVE RAd.OMETER