房地产开发企业动态能力的维度结构与实证研究

羊群行为属于行为经济学的一部分，认为市场主体在信息环境不确定的情况下，其行为易受到其他参与主体的影响，模仿他人决策。基于Hwang和Samlton羊群行为测度方法（HS方法）及EGARCH模型，运用2003年1季度至2014年3季度我国30个省市房地产市场销售价格数据，验证我国房地产市场羊群行为的存在性，并分析购房者羊群行为对中国房地产价格波动的影响。结果表明：我国房地产市场羊群行为显著存在，且购房者羊群行为与房地产价格波动呈正相关关系。     

Litterbox size preference in domestic cats (Felis catus)

The objective of this study was to evaluate the response of healthy housebound domestic cats to the simultaneous provision of 2 litterboxes of differing sizes by recording the average daily frequency of urination and defecation in each box. Forty-three households with 74 privately owned cats were each provided with 2 different-sized plastic containers, with the larger box being 86 cm in length, exceeding the size of commercially available litterboxes. Owners were also provided with an unlimited supply of clumping cat litter and a logbook to record daily urine and fecal deposits in the boxes as they were scooped over a 4-week period. The 2 litterboxes were initially placed at opposite sides of the same room in the owner's home. After 2 weeks, the boxes were emptied completely, refilled with clean clumping litter, and replaced in the opposite location. Results were recorded as simple counts of urine and fecal deposits for each day and each household. Over the 28-day period, there were a total of 5031 urine and fecal deposits in the larger boxes and 3239 urine and fecal deposits in the regular boxes. The effects of phase (days 1-14 vs. 15-28) and box size (regular vs. large) on the number of deposits per cat were evaluated using a linear mixed model. In addition to evaluating phase and box size, the effects of number of cats in the house, their average age, and gender were also evaluated. Urine deposits were significantly more frequent than fecal deposits. Large boxes were preferentially selected over regular boxes in both phases, but this difference was greater in phase 1 than phase 2. Further analysis indicated that there was a location preference during the first 2 days in phase 2, and this effect decreased as the study progressed. Results indicate that most cats show a definite preference for a larger litterbox than is typically available to them in homes and that other factors such as box cleanliness and location may have a compounding influence on this choice.     

Salivary cortisol and behavior in therapy dogs during animal-assisted interventions: A pilot study

Animal-assisted interventions (AAIs) have been associated with positive effects on human psychological and physiological health. Although the perception of quality standards in AAIs is high, only few investigations have focused on potential welfare implications for therapy dogs linked to their performance in AAIs. The standardized program “multiprofessional animal-assisted intervention (MTI)” has been carried out in adult mental health care, significantly improving patients' prosocial behaviors. In the present study, we monitored salivary cortisol and behavioral measures in therapy dogs that participated in MTI group therapy sessions in an in-patient substance abuse treatment facility. Work-related activity (lay, sit, stand, walk, and run), behavior (lip licking, yawning, paw lifting, body shake, tail wagging, and panting), response to human action (taking food treats and obeying commands), and salivary cortisol levels were analyzed over the course of 5 subsequent MTI working sessions in experienced therapy dogs (N = 5), aged 5.4 ± 2.8 years (mean ± standard deviation). Salivary cortisol levels decreased from presession to postsession in sessions 1, 2, and 3. However, only in session 4 and 5, postsession cortisol levels were significantly lower than presession levels (P = 0.043). There was no difference between salivary cortisol levels sampled on a nonworking day at home and work-related levels sampled at the therapy site. None of the behavioral parameters varied significantly over the course of the 5 MTI sessions. Both lip licking (P = 0.038) and body shake (P = 0.021) were positively correlated with the decline in cortisol during session 5. The study results suggest that trained dogs are not being stressed by repeated participation in in-patient substance abuse therapy sessions. Further investigation into the effects of animal-assisted therapy on dogs' physiological markers and behavior is warranted.     

MC与MG对尼罗罗非鱼和大口黑鲈游泳行为的影响

尼罗罗非鱼(Tilapia nilotica)和大口黑鲈(Micropterus salmoide)是中国主要的淡水经济鱼类,其养殖过程中常遇到微囊藻毒素(Microcystin,MC)与孔雀石绿(Malachite green,MG)的危害。MC和MG通过食物链在人体中富集,给人类的健康造成了严重的威胁。研究测定了人工饲养的尼罗罗非鱼和大口黑鲈在含有MC和MG的水体中的行为反应。结果表明,尼罗罗非鱼和大口黑鲈在0.2和0.5μg/L MC-LR的水体中处理60min内,其游泳行为相对于对照组无显著性差异,然而,在0.5mg/L MG的水体中处理30min后,尼罗罗非鱼胸鳍摆动频显著上升,大口黑鲈胸鳍摆动频率也在25、30、45min等3个不连续的时间点出现显著的变化。说明尼罗罗非鱼和大口黑鲈对天然毒素MC具有较强的抵抗能力,而对人工毒素MG较为敏感;胸鳍摆动频率可作为尼罗罗非鱼和大口黑鲈一个较为敏感的反映环境变化的行为指标。     

鳙目标强度和行为特征的水声学研究

使用EY60回声探测仪于2010年5月10-15日、9月28-29日分别对5种不同体长规格的鳙进行了目标强度及昼夜行为的现场测定.结果显示:鳙的全长范围为30.05～80.00cm,体长范围为25.10～68.80 cm,体重范围为0.3～6.0kg,对应的有效目标强度范围为-51.84～-42.06dB,最大目标强度...     

基于读者信息行为规律的信息服务管理策略

论述了网络环境下,高校图书馆读者信息行为规律的变化及共性特征,并进行了实证分析研究。在此基础上,提出了图书馆多样化、多元化、个性化和一站式的信息服务管理策略。     

鳜胃蛋白酶基因外显子7上SNP检测及其与食性驯化相关分析

本研究旨在探寻胃蛋白酶(pepsinogen,PEP)基因的等位基因及其基因型在不同食性驯化表型鳜(Siniperca chuatsi)群体中的分布情况.通过2周食性驯化,挑选出最易驯化和最不易驯化的2组,提取各组鳜鳍条组织DNA,采用PCR产物直接测序法(direct sequencing,DS)、限制性片段长度多态...     

农村留守儿童问题行为状况调查与对策研究

对农村初中留守儿童问题行为的状况进行调查和分析,并提出相应的建议或干预措施。     

合福高铁沿线旅客旅游行为分析

在问卷调查的基础上,对合福高铁旅客的出游目的、旅游目的地偏好、旅游线路等旅游消费行为特征进行分析,结果表明:预订率最高的3趟班次依次为G28(09:52~13:31)、G322(09:12~13:36)、G1612(16:50~21:22);旅客出行目的以商旅为主;旅游目的地偏好依次为黄山、婺源、武夷山、三清山;旅客普遍使用旅游相关的APP。合福高铁沿线应从微旅游市场开发、移动智能营销平台建设、高铁配套设施、区域旅游合作等方面加强旅游联合营销。     

从生育行为看农村妇女的家庭地位——基于江西X村的研究

通过对农村妇女生育行为及其家庭地位的个案访谈，发现从农村妇女的生育行为，主要是生育孩子的数量和性别，已经无法准确判断她们的家庭地位。即生育行为与妇女的家庭地位之间的联系正在弱化甚至消失，取而代之的是包括妇女的性别意识、经济独立性、知识水平等多方面因素。因此，提高农村妇女家庭地位的途径也变得多样化，其中，增强农村女性自身素质显得尤为重要。