The clutch size,incubation behavior of Reeves’s Pheasant(Syrmaticus reevesii) and their responses to ambient temperature and precipitation

Weather conditions play a pivotal role in embryo development and parental incubation costs,potentially impacting the clutch size and incubation behavior of birds.Understanding these effects is crucial for bird conservation.Reeves’ s Pheasant(Syrmaticus reevesii) is a threatened species endemic to China,which is characterized by female-only incubation.However,there is a lack of information regarding the impact of weather conditions on clutch size and incubation behavior in this species.Using satellite tracking,we tracked 27 wild female Reeves’ s Pheasants from 2020 to 2023 in Hubei Province,China.We explored their clutch size and incubation behavior,as well as their responses to ambient temperature and precipitation.Clutch size averaged 7.75 ±1.36,had an association with average ambient temperature and average daily precipitation during the egglaying period,and was potentially linked to female breeding attempts.Throughout the incubation period,females took an average of 0.73 ±0.46 recesses every 24 h,with an average recess duration of 100.80 ±73.37 min and an average nest attendance of 92.98 ±5.27%.They showed a unimodal recess pattern in which nest departures peaked primarily between 13:00 and 16:00.Furthermore,females rarely left nests when daily precipitation was high.Recess duration and nest attendance were influenced by the interaction between daily mean ambient temperature and daily precipitation,as well as day of incubation.Additionally,there was a positive correlation between clutch size and recess duration.These results contribute valuable insights into the lifehistory features of this endangered species.

GREEN'S FUNCTION AND THE POINTWISE BEHAVIORS OF THE VLASOV-POISSON-FOKKER-PLANCK SYSTEM

The pointwise space-time behaviors of the Green’s function and the global solution to the Vlasov-Poisson-Fokker-Planck(VPFP)system in three dimensional space are studied in this paper.It is shown that the Green’s function consists of the diffusion waves decaying exponentially in time but algebraically in space,and the singular kinetic waves which become smooth for all(t,x,v)when t>0.Furthermore,we establish the pointwise space-time behaviors of the global solution to the nonlinear VPFP system when the initial data is not necessarily smooth in terms of the Green’s function.

热处理对电沉积Ni-S合金微观组织和析氢性能的影响

电解水制氢是目前最有望替代矿石燃料制氢的技术,低成本且高效的析氢电极是限制电解水制氢大规模应用的瓶颈问题,而Ni-S合金具有易制备和高活性等优点,作为电解水的阴极材料具有极大的潜力。通过电沉积法在泡沫镍表面制备了非晶Ni-S合金,研究了Ni-S合金的晶化行为对其析氢性能的影响,热处理促使非晶Ni-S合金镀层再结晶转变为以Ni_(3)S_(2)和Ni为主的结晶层,电化学分析结果表明热处理减少非晶Ni-S合金镀层的析氢活性位点,增大氢气从Ni-S合金表面脱附难度,显著削弱Ni-S/NF电极的电化学析氢性能。

SAMP8小鼠在中医药抗痴呆中的应用研究进展

快速老化小鼠是一种早期学习记忆障碍模型,因其表现出阿尔茨海默病发病机制的大多数特征,包括抗衰老因子的异常表达、炎症因子的过度升高、淀粉样蛋白沉积、tau蛋白过度磷酸化、线粒体自噬、血脑屏障损伤的中枢机制以及多系统多器官的病理损伤,因而成为阿尔茨海默病(Alzheimer's disease,AD)研究的理想模型而广泛应用。随着AD机制实验研究的不断深入,发现SAMP8小鼠在行为活动、组织病理及生化参数指标上相较于SAMR1发生明显变化,并与人体疾病相类似。基于此,本文对SAMP8小鼠的行为学、组织病理和中医药实验研究进行了系统综述,加深对SAMP8小鼠的认识,了解其生理病理特性,并依据中医药实验研究对其中医证型进行推测,以期对SAMP8小鼠的科学应用提供有益帮助。

Influence of Reading Behavior of Entrepreneurs on Their Entrepreneurial Performance: Empirical Study of Chongqing

In the context of economic downward and industrial structural adjustment,cultural level of entrepreneurs exerts direct influence on entrepreneurial results,while reading behavior of entrepreneurs is closed connected with cultural level of entrepreneurs. Therefore,it is of utmost importance to analyze the relation between reading behavior and entrepreneurial performance. Based on the survey data of 200 enterprises in one- hour economic circle of Chongqing,this paper analyzed three dimensions of reading behavior of entrepreneurs: reading subjects,reading media,and reading environment. It analyzed the relation between these three indicators and entrepreneurial performance. It further divided entrepreneurial performance into survival performance and financial performance. Finally,it came up with following conclusions:( i) good reading exerts significantly positive effect on survival performance of entrepreneurial enterprises;( ii) suitable reading environment plays a positive role in financial performance of entrepreneurial enterprises.

基于人脸识别的课堂教学行为S-T分析系统设计

提出并详细介绍了一种基于人脸识别技术的课堂教学行为S-T分析系统的设计。该系统以S-T分析法为理论基础,采用多种人脸识别算法,包括年龄检测、表情分析、姿态分析等,旨在自动识别并分析教师和学生在课堂上的行为。基于大量课堂视频数据的准备、软件系统原型的设计、深入研究课堂教学行为理论等,解决人脸识别技术的算法选型、视频关键帧的分析与因果关系模型的建立、系统运行的稳定性和界面设计等关键技术问题。通过系统性的需求分析、设计与架构、实现、评估与可视化等阶段的论述,详细展现了该系统的开发过程。

S-O-R理论框架下传统村落品牌“商品化”路径探析——以张谷英村为例

打造传统村落地方品牌并将其转化为实际效益,是实现乡村旅游活化的有效途径。基于S-O-R理论,构建研究理论框架,以湖南岳阳张谷英村为例,运用结构方程模型进行定量实证分析,结果表明:传统村落品牌“商品化”进程涵盖了品牌价值提升、文化价值延伸、经济效益转化三部分;传统村落地方品牌建构对游客消费行为起间接影响作用,地方依恋是沟通地方品牌建构与游客消费行为的“桥梁”,其中介效应得到了验证;为实现地方品牌价值向经济效益的有效转化,应当深度挖掘传统村落文化内涵,注重保护乡土景观,完善食宿消费服务体系,使单一产业转向多产业模式发展。

PLA/PBS/PEG共混体系非等温热分解动力学

为了探究聚乳酸/聚丁二酸丁二醇酯/聚乙二醇(PLA/PBS/PEG)共混体系的热分解行为,通过熔融开炼共混法制备了PLA/PBS/PEG共混体系,利用同步热分析仪考察了不同加热速率下复合材料的热解行为。使用无模型方法Kissinger方程和Ozawa方程计算出了平均活化能,运用模型方法Coats-Redfern方程,将不同的热解机理函数带入其中,计算出活化能,将两个活化能进行对比,以明确最合适的反应模型。结果表明,该复合材料的热解机理函数为G(α)=[1-(1-α)^(-3)]/(-3),即随机成核随后生长。

Corrosion Behavior of the S136 Mold Steel Fabricated by Selective Laser Melting

The selective laser melting(SLM) method has a great potential for fabricating injection mold with complex structure. However, the microstructure and performance of the SLM molds show significantly di erent from those manufac?tured by traditional technologies. In this study, the microstructure, hardness and especially corrosion behavior of the samples fabricated by SLM and casting were investigated. The XRD results exhibit that the γ?Fe phase is only obtained in the SLM parts, and the α?Fe peak slightly moves to low di raction angle compared with casting counterparts. Due to the rapid cooling rate, the SLM samples have fine cellular microstructures while the casting ones have coarse grains with obvious elements segregation. Besides, the SLM samples show anisotropy, hardness of side view and top view are 48.73 and 50.31 HRC respectively, which are 20% higher than that of casting ones. Corrosion results show that the SLM samples have the better anti?corrosion resistance(in a 6% FeCl3 solution for 48 h) but the deeper corrosion pits than casting ones. Finally, the performance of the SLM molds could meet the requirement of injecting production. Moreover, the molds especially present a significant decrease(20%) of cooling time and increases of cooling uniform?ity due to the customized conformal cooling channels.

Combined acupuncture and HuangDiSan treatment affects behavior and synaptophysin levels in the hippocampus of senescence-accelerated mouse prone 8 after neural stem cell transplantation

Sanjiao acupuncture and HuangDiSan can promote the proliferation, migration and differentiation of exogenous neural stem cells in senescence-accelerated mouse prone 8 （SAMP8） mice and can improve learning and memory impairment and behavioral function in dementia-model mice. Thus, we sought to determine whether Sanjiao acupuncture and HuangDiSan can elevate the effect of neural stem cell transplantation in Alzheimer’s disease model mice. Sanjiao acupuncture was used to stimulate Danzhong （CV17）, Zhongwan （CV12）,Qihai （CV6）, bilateral Xuehai （SP10） and bilateral Zusanli （ST36） 15 days before and after implantation of neural stem cells （5 × 10^5） into the hippocampal dentate gyrus of SAMP8 mice. Simultaneously, 0.2 mL HuangDiSan, containing Rehmannia Root and Chinese Angelica,was intragastrically administered. Our results demonstrated that compared with mice undergoing neural stem cell transplantation alone,learning ability was significantly improved and synaptophysin mRNA and protein levels were greatly increased in the hippocampus of mice undergoing both Sanjiao acupuncture and intragastric administration of HuangDiSan. We conclude that the combination of Sanjiao acupuncture and HuangDiSan can effectively improve dementia symptoms in mice, and the mechanism of this action might be related to the regulation of synaptophysin expression.

Effects of trace Ca/Sn addition on corrosion behaviors of biodegradable Mg-4Zn-0.2Mn alloy

The effects of alloying elements of Ca/Sn on corrosion behaviors of the as-cast Mg-4Zn-0.2Mn alloy were investigated by immersion tests and electrochemical methods.The results indicated that the average corrosion rate value of the Mg-4Zn-0.2Mn-Ca alloy was∼0.31 mm/year in Hank’s physiological solution for 40 days,and corrosion resistance increased for the specimens containing Ca element rather than that containing Sn because of the higher breakdown potential value,lower current density and deactivated corrosion rate,which was ascribed to a formation of the uniformly distributed Mg-Zn-Ca ternary phase.

Role of P,S and B on Creep Behavior of Alloy 718

The doping of phosphorus, sulfur and boron in IN718 superalloy can remarkably influence the creep behavior. The modifications of the minor elements seem not to vary the stress exponent and the influences primarily concentrate on the effective diffusion coefficient. A pronounced beneficial interaction between P and B and a weaker detrimental interaction between P and S have been obtained. The preexponential frequency constant is proved to be strongly related with the creep activation energy because of the so-called compensation effect. The compensation temperature has been determined to be about 1080 K, which corresponds to the transformation temperature from rapidly coarsened γ'' phase to δ phase. It has been proposed that trace elements can influence the effective diffusion coefficient individually or cooperatively, which in turn either retard or speed the creep process.

Assessing gray matter volume in patients with idiopathic rapid eye movement sleep behavior disorder

Idiopathic rapid eye movement sleep behavior disorder(iRBD) is often a precursor to neurodegenerative disease. However, voxel-based morphological studies evaluating structural abnormalities in the brains of iRBD patients are relatively rare. This study aimed to explore cerebral structural alterations using magnetic resonance imaging and to determine their association with clinical parameters in iRBD patients. Brain structural T1-weighted MRI scans were acquired from 19 polysomnogram-confirmed iRBD patients(male:female 16:3; mean age 66.6 ± 7.0 years) and 20 age-matched healthy controls(male:female 5:15; mean age 63.7 ± 5.9 years). Gray matter volume(GMV) data were analyzed based on Statistical Parametric Mapping 8, using a voxel-based morphometry method and two-sample t-test and multiple regression analysis. Compared with controls, iRBD patients had increased GMV in the middle temporal gyrus and cerebellar posterior lobe, but decreased GMV in the Rolandic operculum, postcentral gyrus, insular lobe, cingulate gyrus, precuneus, rectus gyrus, and superior frontal gyrus. iRBD duration was positively correlated with GMV in the precuneus, cuneus, superior parietal gyrus, postcentral gyrus, posterior cingulate gyrus, hippocampus, lingual gyrus, middle occipital gyrus, middle temporal gyrus, and cerebellum posterior lobe. Furthermore, phasic chin electromyographic activity was positively correlated with GMV in the hippocampus, precuneus, fusiform gyrus, precentral gyrus, superior frontal gyrus, cuneus, inferior parietal lobule, angular gyrus, superior parietal gyrus, paracentral lobule, and cerebellar posterior lobe. There were no significant negative correlations of brain GMV with disease duration or electromyographic activity in iRBD patients. These findings expand the spectrum of known gray matter modifications in iRBD patients and provide evidence of a correlation between brain dysfunction and clinical manifestations in such patients. The protocol was approved by the Ethics Committee of Huashan Hospital(approval No. KY2013-336) on January 6, 2014. This trial was registered in the ISRCTN registry(ISRCTN18238599).

The Efficacy and Safety of Yokukansankachimpihange for Treating Behavioral and Psychological Symptoms of Dementia in Patients with Alzheimer’s Disease: An Open-Label Pilot Study

Previous clinical trials have demonstrated the efficacy of yokukansan, a traditional Japanese medicine, for the treatment of behavioral and psychological symptoms of dementia (BPSD). However, less evidence is available for the treatment of BPSD with yokukansankachimpihange (YKSCH), which consists of yokukansan and two additional herbal ingredients. The present study was conducted to investigate the efficacy and safety of YKSCH for treating BPSD in patients with Alzheimer’s disease (AD). We enrolled outpatients with mild-to-moderate AD who exhibited BPSD and obtained a Neuropsychiatric Inventory (NPI) score of >3 including subscale scores for “agitation”, “anxiety”, “irritability”, and “sleep and night-time behavior change”. A daily YKSCH dose of 7.5 g was administered for 12 weeks with concomitant administration of anti-dementia medication. BPSD was evaluated using the NPI at baseline and every 4 weeks during the intervention. We also examined apathy using the Japanese translation of the Apathy Scale, the short version of the Japanese version of the Zarit Caregiver Burden Interview, and the Modified Crichton Rating Scale for Predicting Activities of Daily Living. Cognitive dysfunction was evaluated using the Mini Mental State Examination and the AD Assessment Scale-Cognitive (Japanese version). Five participants were enrolled. The NPI total score tended to decrease between the baseline and 8-week evaluations during the YKSCH intervention (Wilcoxon signed rank test, P = 0.063). In terms of the NPI subscale scores, “apathy”, “agitation”, “delusions”, and “sleep and night-time behavior change” decreased after the intervention in those who exhibited each symptom at baseline. There were no significant differences in the other scores examined. No serious adverse events were observed. YKSCH could ameliorate BPSD in patients with mild-to-moderate AD with agitation, anxiety, irritability, and sleep and night-time behavior change, and it was well-tolerated.

基于改进Faster RCNN的驾驶员手持通话检测

针对现有驾驶员通话行为识别误判率较高的问题,提出一种基于改进Faster RCNN的驾驶员行为检测方法,对驾驶员的违规手持通话进行检测.介绍了针对区域建议网络(RPN)及其损失函数的优化策略,并在原始Faster RCNN上运用多尺度训练、增加锚点数量以及引入残差扩张网络的方法增强网络检测不同尺寸目标的鲁棒性.基于车载平台上采集的驾驶员行为图像,对文中提出的方法进行仿真试验.结果表明:RPN和Faster RCNN通过交替优化共享特征提取网络部分,实现高效的目标检测,相较于原始Faster RCNN,检测精确度提高了3.8%,对环境的适应性更强.

Rapamycin reverses ferroptosis by increasing autophagy in MPTP/MPP+-induced models of Parkinson's disease

Parkinson’s disease is a neurodegenerative disorder,and fe rroptosis plays a significant role in the pathological mechanism underlying Parkinson’s disease.Rapamycin,an autophagy inducer,has been shown to have neuroprotective effects in Parkinson’s disease.However,the link between rapamycin and ferroptosis in Parkinson’s disease is not entirely clear.In this study,rapamycin was administe red to a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced Parkinson’s disease mouse model and a 1-methyl-4-phenylpyridinium-induced Parkinson’s disease PC12 cell model.The results showed that rapamycin improved the behavioral symptoms of Parkinson’s disease model mice,reduced the loss of dopamine neurons in the substantia nigra pars compacta,and reduced the expression of ferroptosis-related indicators(glutathione peroxidase 4,recombinant solute carrier family 7,member 11,glutathione,malondialdehyde,and reactive oxygen species).In the Parkinson’s disease cell model,rapamycin improved cell viability and reduced ferro ptosis.The neuroprotective effect of rapamycin was attenuated by a ferroptosis inducer(methyl(1S,3R)-2-(2-chloroacetyl)-1-(4-methoxycarbonylphenyl)-1,3,4,9-tetrahyyridoindole-3-carboxylate)and an autophagy inhibitor(3-methyladenine).Inhibiting ferro ptosis by activating autophagy may be an important mechanism by which rapamycin exerts its neuroprotective effects.Therefo re,the regulation of ferroptosis and autophagy may provide a therapeutic target for drug treatments in Parkinson’s disease.

Brief Probe into College English Teachers' Phonetic Teaching Beliefs and Behavior

Pronunciation is the basic of learning a language and an important breakthrough point to promote the whole level of language.As a result,pronunciation attracted more and more attention in English teaching.However,it is still a weakness in English teaching because of the multifarious and complicated factors.A large numbers of research papers indicate that teacher is the leader and organizer of teaching activities,he or she dominants the whole process of pronunciation teaching.For example,they make decisions,design and reform the content of teaching in the classroom.What's more,teacher's beliefs can influence their teaching behaviors more than their professional knowledge,namely,teacher's phonetic teaching beliefs influence their phonetic teaching behaviors deeply.This study aims at finding out about teachers'beliefs of phonetic teaching and casting some light on the relationship between teachers' phonetic teaching beliefs and behaviors,and the causes for their inconsistency if any.

Behavioral problems and related factors in children of different aged patients with schizophrenia: A cross-sectional study

BACKGROUND： With the age growing, changes of behavioral problems in children whose parents had schizophrenia, differences of related factors and ways for particular intervention should be further studied. OBJECTIVE： To survey the behavioral problems in children of different aged patients with chizophrenia and investigate the correlation between behavioral problems and related factors in different aged groups. DESIGN： Cross-sectional study. SETTING： Shandong Mental Health Center. PARTICIPANTS： A total of 364 patients with schizophrenia were selected from eleven psychiatric hospitals from June 1999 to June 2000. There were 179 males and 185 females, and their ages ranged from 28 to 45 years. All patients met modified diagnostic criteria of schizophrenia （the second edition）, China Classification of Mental Diseases and Diagnostic Criteria. Meanwhile, children of the 364 patients were grouped based on their ages, including 6 - 1 l years old group [n -217; 114 males and 103 females; mean age of （9±2） years] and 12 - 16 years old group [n = 147; 99 males and 48 females; mean age of （14±1） years]. The Chinese norms of Achenbach＇s Child Behavior Check List were regarded as the normal control group. METHODS： Children who received self-made mental health related factors inventory and Achenbach＇s Child Behavior Check List were involved in this study. All children and their parents provided the confirmed consent. Achenbach＇s Child Behavior Check List was used for parents to mainly evaluate children, and the results manifested various behavioral problems based on different sexes and different ages. Self-made mental health related factors inventory contained questionnaires for parents and children, respectively. In this study, home situation of parents as well as personality characteristics and educational styles of children were mainly evaluated. MAIN OUTCOME MEASURES： ① Scores of Achenbach＇s Child Behavior Check List in different aged children; ② Scores of self-made mental health related factors inventory based on different home situations and educational styles. RESULTS： Children of 364 patients were involved in the final analysis. ① There were no significant differences in total score of Achenbach＇s Child Behavior Check List and sex in the two groups （P 〉 0.05）. There were significant differences in schizoid, body recount, aggression, depression, hyperactivity, violating discipline, compulsion and total abnormal rate of boys between the 6 - 11 years old group and the normal control group （P 〈 0.05 - 0.01）. In addition, there were also significant differences in poor communication, depression, hyperactivity, violating discipline, compulsion and total abnormal rate of girls between the 6 - 11 years old group and the normal control group （P 〈 0.05 - 0.01）. ② As compared with normal control group,scores of home environment in the two aged groups demonstrated that educational level was low; interpersonal relationship was poor; relation to children was not closed; relationship between husband and wife was not harmonious; positive rate of family history was high; economic status was poor; family atmosphere was poor. Therefore, there was significant difference （P 〈 0.01）. Educational level in parental generation and single parent family in the 6 - 11 years old group were higher than that in the 12 - 16 years old group, with significant difference （P 〈 0.05）. As compared with the normal control group, results of education demonstrated that children in the two aged groups had poor communication with other children; they had poor behaviors in schools; most of them were boarded and had poor relationship with their parents; teaching styles for children were different. CONCLUSION： All children of different aged patients with schizophrenia had poor home environment and education; and they were often affected by other factors. Behavioral problems were changed with the age growing; in addition, these changes were related to home environment, education and society. Therefore, comprehensive intervention may be an ideal method.

Chaotic behavior learning of Chua's circuit

Least-square support vector machines（LS-SVM） are applied for learning the chaotic behavior of Chua＇s circuit.The system is divided into three multiple-input single-output（MISO） structures and the LS-SVM are trained individually.Comparing with classical approaches,the proposed one reduces the structural complexity and the selection of parameters is avoided.Some parameters of the attractor are used to compare the chaotic behavior of the reconstructed and the original systems for model validation.Results show that the LS-SVM combined with the MISO can be trained to identify the underlying link among Chua＇s circuit state variables,and exhibit the chaotic attractors under the autonomous working mode.

Alibaba: Inspiring African Entrepreneurs

IN November 2017,I and a group of more than 20 other African entrepreneurs flew into Shanghai as guests of Alibaba,the global e-commerce company based in China.We were the first batch of applicants for the Alibaba eFounders Fellowship,a program designed by Alibaba to promote e-commerce around the world by exposing entrepreneurs to Alibaba’s extensive knowledge and experience with e-commerce in China.