共找到 1,259,686 条论著文献

1、计算机信息安全与网络技术应用 2018/12

摘要:目前,计算机网络技术正朝着智能化、高效化方向发展。基于计算机网络技术的诸多优点,计算机网络技术的应用领域正在逐步扩大,目前计算机网络技术已经在多个领域取得了重要应用本书讲述了计算机信息系统的关键技术,计算机网络的域名系统、FTP协议与服务、电子邮件、万维网和网络编程,网络互联中的路由选择、多点播送和移动IP,直接网络中的以太网和无线网络,重点讲述了实体安全与防护技术,计算机软件安全技术包括软件防拷贝技术、防静态分析技术、防动态跟踪技术和软件保护及工具,备份技术,加密方法、加密技术和加密算法,认证与数字签名,网络管理中的简单网络管理协议SNMP和网络故障排除等内容。
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2、临床中医学新进展 2018/11

摘要:本书汇总了本学科近年来的研究进展,内容新颖,实用性强,具有较高的社会价值,可作为医学院校师生学习研究参考,也可为临床医师提供参考。同类书较多,但随着科技发展内容在不断更新,本书在内容和编写形式上更加新颖,贴合市场需求,社会价值和经济价值并存,具备较高出版价值。
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3、Magnetization transfer MR imaging to monitor muscle tissue formation during myogenic in vivo differentiation of muscle precursor cell

摘要:Purpose To determine whether magnetization transfer (MT) magnetic resonance (MR) imaging may serve as a quantitative measure of the degree of fiber formation during differentiation of muscle precursor cells into engineered muscle tissue as a potential noninvasive monitoring tool in mice. Materials and Methods The study was approved by the local ethics committee (no. StV 01/2008) and the local Veterinary Office (license no. 99/2013). Human muscle progenitor cells (hMPCs) derived from rectus abdominis muscles were subcutaneously injected into CD-1 nude mice (CD-1 nude mice, Crl:CD1-Foxn1(nu); Charles River Laboratories, Wilmington, Mass) for development of muscle tissue. The mice underwent MR imaging examinations at 4.7 T at days 1, 3, 7, 14, 21, and 28 after cell transplantation by using a gradient-echo sequence with an MT prepulse and systematic variation of the off-resonance frequency (50-37 500 Hz) at an amplitude of 800°. Direct saturation was estimated from a Bloch equation simulation. The MT ratio (MTR) was correlated to immunohistochemistry findings, Western blot results, and results of myography. Data were analyzed by using one-way or two-way analysis of variance with the Sidak or Tukey multiple comparisons test. Results In the reference skeletal muscle, highest MT was found for 2500 Hz off-resonance frequency with an MTR ± standard deviation of 57.5% ± 3.5. The developing muscle tissue exhibited increasing MT values during the 28 days of myogenic in vivo differentiation and did not reach the values of native skeletal muscle. Mean values of MTR (2500 Hz) for hMPCs were 27.6% ± 6.3 (day 1), 24.7% ± 8.7 (day 3), 28.2% ± 5.7 (day 7), 35.9% ± 5.0 (day 14), 37.0% ± 7.9 (day 21), and 39.9% ± 8.1 (day 28). The results from MT MR imaging correlated qualitatively well with muscle tissue expression of specific skeletal markers, as well as muscle contractility. Conclusion MT MR imaging may be used to noninvasively monitor the process of myogenic in vivo differentiation
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4、Successful treatment of a recurrent granulation polyp in the airways with high-dose-rate brachytherapy: a case report 2017

摘要:Background Benign central airway tumors are very rare diseases. Their unspecific symptoms are responsible for late diagnosis. Endoscopic interventions with different techniques and tools are widely used for their treatment. However, in certain cases interventional endoscopy might be unsuccessful and therefore other methods such as high-dose-rate brachytherapy could be a therapeutic option. Case presentation A 76-year-old white German woman was referred to our clinic for an endoscopic treatment of a recurrent granulation polyp in her left main bronchus. She had dyspnea, coughing, and mucus retention. Three times resections via bronchoscopy were performed within less than a year. After each intervention the polyp regrew inside her left main bronchus causing a repeat of the initial symptoms. She presented to our clinic less than 1 month since the last intervention. Twice we performed a rigid bronchoscopy in total anesthesia where we resected the granulation polyp with a snare wire loop and did an argon plasma coagulation of its base. Due to the recurrent growing of the granuloma, we performed a high-dose-rate brachytherapy in conscious sedation after another interventional bronchoscopy with a resection of the polyp and argon plasma coagulation of the base. Three months after brachytherapy our patient came to our clinic for a follow-up with none of the initial symptoms. Only a small remnant of the polyp without a significant occlusion of her bronchus was visualized by bronchoscopy. Furthermore, 6 months after brachytherapy she was not presenting any of the initial symptoms. Conclusions This case report shows that high-dose-rate brachytherapy is a therapeutic option for the treatment of benign airway stenosis when other interventional treatments are not or are less than successful. However, further investigations are needed to prove the effectiveness and reliability of the method.
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5、"Great is the power of steady misrepresentation" : racial inequality and social representations of human evolution 2011

摘要:1 online resource Lay narratives about human evolution contain references to leaving Africa, describe evolution as linear, and celebrate Western advances as evidence of humanity's superior intellect. Furthermore, popular images of human evolution depict a timeline beginning with a dark, apelike creature on the left and ending with a White male on the right. I argue that these commonplace representations of human evolution contain vestiges of an explicit racial hierarchy from the 19th century and affect people's understanding of racial inequality today. Across three studies, White participants exposed to these representations were more likely to demonstrate indifference to and even justification of racial inequality, both present and historic. In two additional studies I demonstrate that the representation of evolution can negatively affect Black participants in an academic context, by invoking a threat of dehumanization. Although inaccuracies in the representations of human evolution are well documented, such inaccuracies not only pose challenges for the teaching and learning of science, but also for current day race relations.
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6、寒假生活 2018/12

摘要:本书是配合教材编写的异步类假期作业,为四年级学生寒假期间语文学习与作业用书。内容根据相应阶段知识点进行设置,涉及课内,延伸课外,考虑到学生的心理和生理特点,每个作业按45分钟完成的题量来设计。作业内容精练,同时又突出趣味性。并在书的最后设置了假期实践活动,使学生在实践的过程中收获。本书能使学生轻松快乐地学习,并带给学生成功掌握知识点的喜悦,增强学生的自信。
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7、传统产业转型发展问题研究 2018/12

摘要:本书是在中国社会科学院工业经济研究所创新工程项目“传统产业转型发展问题研究”系列调研报告基础上完成的,全书共9章,对传统产业企业的策略困境、策略转型中的问题、策略的有效性、转型升级的方向和模式、企业价格战、企业博弈策略及部分典型产业、新技术产业的发展策略选择进行了系统的研究探讨。
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8、启东黄冈作业本 2018/12

摘要:《启东黄冈作业本历史八年级下册人民教育教材适用》主要内容有——鸦片战争,太平天国运动,洋务运动,甲午中日战争,戊戌变法,革命先行者孙中山,辛亥革命,中华民国的创建,新文化运动,五四运动,毛泽东开辟井冈山道路,中国工农红军长征,正面战场的抗战,敌后战场的抗战,抗日战争的胜利,社会生活与教育文化事业的发展等。
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9、零基础过证券从业考试 2018/11

摘要:本书书编委会成员为中央财经大学具有丰富证券从业考试经验的老师和专家,辅导教材以2015年、2016年、2017、2018年考试的真题为基础,分析得出最重要的、出现最频繁的考试要点,以考点为纲,以真题为目,为考生提供辅导。
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10、Devaluing Black space : Black locations as targets of housing and environmental discrimination 2010

摘要:1 online resource Do spaces have races? Why might space-race associations matter? Across four studies, participants attached racial meaning to a range of locations, as well as negatively stereotyped and reported feeling less connected to Black spaces in particular. Negative stereotyping and lack of connection to Black space explained why these spaces experienced both housing and environmental discrimination. Studies 1 and 2 participants generated raced spaces and then rated the extent to which they thought of these locations (i.e. inner cities, suburbs) as White or Black. The more Black spaces were, the less White they were, showing participants made clear distinctions between these two types of spaces. Further, the Black spaces were rated more negatively than the White spaces, showing participants devalued Black space. Study 3 expanded this finding by manipulating the race of one location--a house for sale by a Black or White family. Participants gave the Black house, relative to the White, a lower evaluation (i.e. they thought it was worth less and were less eager to move there). The Black house received this lower evaluation because participants negatively stereotyped it. They imagined the neighborhood surrounding it to be lower quality than the neighborhood they imagined around the White house (i.e. less safe, lower quality schools and municipal services). Additionally, participants reported feeling less connected to the neighborhood around the Black house, which also helped to explain its lower evaluation. Study 4 participants again discriminated against Black space--this time in the environmental domain. Participants read a proposal to place a potentially polluting chemical plant near a majority Black or White neighborhood. They reported less opposition to this plant when the nearby neighborhood was Black. This Black space received less environmental protection because participants were more likely to think it already housed other industrial facilities (industrial space stereotype) and again because they reported feeling less connected to it. These results are important not only because they expand theory on racial discrimination, stereotyping, and sense of place, but also because they provide an enhanced understanding of the causal role race plays in producing and maintaining disparities in access to high quality, healthy living spaces.
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11、快乐魔方作文 2018

摘要:本书以春季景观为主要切入点,吸收了适合各年龄段孩子的作文训练题目,增加了孩子喜闻乐见的活动类训练题目,以及培养观察、想象、创新等能力的训练题目。为广大小学生突破写作难关,提供了一条平稳前进、迅速提升、实效显著的练笔捷径,并力图让学生轻松学习、爱上写作,视写作为一种愉快的生活体验。
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12、空间规划(多规合一)综合解决方案 2018/12

摘要:该书主要结合中研智业集团近年来的研究成果,围绕“先布棋盘、后落棋子”的总体技术路径,开展技术研究和实践,形成了一套较为成熟的技术体系和工作路径,并提出了一套完整的综合解决方案。从资源环境承载能力评价、国土空间开发适宜性评价、生态保护红线划定、空间战略研究、空间规划编制、“一张蓝图”构建、空间规划信息平台建设等方面全面、系统梳理概念内涵、主要任务、技术路径、工作流程、工作成果等内容,能够为政府发改、规划、住建、国土等部门,以及从事空间规划、多规合一工作的机构和专业人员开展相关工作提供全过程的专业服务。
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13、讲述学科故事优秀作品选 2018/12

摘要:本书展现了郑州市三十一(一零三)中学学生在学习中的心得体会,分为语文、数学、英语、政治、历史、地理、化学、物理、生物九个学科,是高一到高三的学生各学科学习实践活动的优秀范例,是在老师指导下创作的生动有趣的各学科故事。本书使课本知识与情景故事相结合,形成具有学科知识特色的故事,通过一个个鲜活的情景表演,让学生提高知识建构速度,加深知识理解,明白知识原理,让学习变得分外轻松快乐。这些故事集九门学科知识之精华,以讲故事的方式寓教于乐,让师生得以在实践中锻炼,在快乐中学习。
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14、战斗堡垒 2019/1

摘要:书中收录近50个案例,由河北、山西、内蒙古、辽宁、吉林、黑龙江、江苏、浙江、安徽、福建、江西、山东、河南、湖北、湖南、广东、广西、海南、重庆、四川、贵州、云南、西藏、陕西、甘肃、青海、宁夏、新疆28个省(自治区、直辖市)党委组织部推荐。这些案例具有典型性、代表性,重点是提升贫困村党组织组织力、突出政治功能,在推动脱贫攻坚各项任务中充分发挥战斗堡垒作用的有效做法、成效。案例真实、可学、管用。通过这些案例,可以为各地抓党建促脱贫攻坚提供启迪和借鉴。
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15、When bias and threat persistently interact : a holistic approach to understand the lingering effects of stereotype 2015

摘要:1 online resource Can social-psychological theory provide insight into the extreme racial disparities in school disciplinary action in the United States? Disciplinary problems carry enormous consequences for the quality of students' experience in school, opportunities to learn, and ultimate life outcomes. This burden falls disproportionately on students of color. Integrating research on stereotyping and on stigma, I theorize that bias and apprehension about bias can build on one another in school settings in a vicious cycle that undermines teacher-student relationships over time and exacerbates inequality. This approach is more comprehensive than accounts that consider the predicaments of either teachers or students but not the two in tandem; it complements nonpsychological approaches; and it gives rise to novel implications for policy and intervention. It also extends prior research on bias and stigmatization to provide a model for understanding the social-psychological bases of inequality more generally.
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16、艺术类大学英语(提高)教师用书 2019/1

摘要:本书是《艺术类大学英语(提高篇)》学生用书的配套教师参考用书。本册书的主题是艺术与社会,全书共8个单元,单元名称分别对应学生用书的8个主题单元:音乐的力量、艺术的商品属性、电影的情感力量、舞蹈的人文关怀、时尚艺术形式的社会影响、广告策略的影响力、音乐剧和工业设计的话语权。本教师用书除了提供学生用书各单元练习的答案和主课文参考中文翻译以外,还提供了主题课文相关背景知识的详细延伸介绍、课文长难句分析、重点词汇及语法讲解。为了适应当下的多媒体课堂教学的特点,本教师用书还配有教学课件,方便教师备课和组织课堂活动。
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17、精通社会工作沟通 2019/1

摘要:沟通在社会工作实践中的重要性是不言而喻的,甚至把社会工作称之为沟通工作也毫不为过。但是它太过基础,以至于实践者们在日常工作中容易陷入无意识的状态,无法应对沟通无效的情境。本书介绍了一系列可操作的模式和方法,比如库伯的学习圈、SOLER、FLEX等,帮助学习者保持有质量的沟通,以及沟通能力的可持续发展。从本书中,读者可以了解沟通的运行机制、影响因素以及倾听水平不同会带来的差异性效果;学习如何觉察和思考服务对象的多样性特征,并掌握建立良好关系的通用沟通规则;意识到存在非自愿的关系和服务对象抗拒和勉强的行为,需要进行反思性实践和发展高水平的自我意识。最后,本书提供了一种帮助社会工作者在实践中精进沟通技巧的新方法,读者可以从执行小任务开始进行尝试,从而超越惯习、扩展沟通技巧库,提高有意识的胜任力水平下的沟通能力。
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18、边城 2018/12

摘要:《边城》是沈从文备负盛名的小说,荣登“20世纪中文小说100强”第2名。它讲述了在川湘交界的边城小镇茶峒,一个十五岁的船家少女翠翠的爱情故事。此外,本书还收录了沈从文具有代表性的几部小说《三三》《萧萧》《龙朱》等,为读者呈现出一个如梦似幻的湘西世界。
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19、Black and white meets blue : race and the social psychology of police-community interaction 2018

摘要:1 online resource In this dissertation, I examine how everyday interactions between police officers and community members build or erode trust along racial lines. In contrast to past social psychological approaches, which have narrowly focused on racial biases in officers' decision making, I advance an alternative framework for understanding these encounters: as institutional interactions. In Chapter 1, I outline this framework, which centers the interactions between institutional agents (e.g., police officers, teachers, doctors), and participants (e.g., citizens, students, patients). Like other intergroup interactions, these encounters bring together perspectives in a dynamic that unfolds across time. However, these interactions are unique in their institutional nature. Police officers are simultaneously individuals and extensions of the state, and act using a combination of their own discretion and departmental guidance. This dual role shapes both officer behavior and citizen experiences in the most common way in which citizens come into contact with the criminal justice system: as the subject of a traffic stop. A distinctive feature of vehicle stops is that the interaction occurs at the officer's discretion; that is, as a result of their decision to pull over a driver. In Chapter 2, I demonstrate that this discretionary context frames interactions in different ways for White and Black community members, shaping their construal of police encounters. In Chapter 3, I analyze racial disparities in the discretionary context of stops, demonstrating that, relative to White drivers, Black drivers are more likely to be stopped in circumstances where the justification for the stop is unclear and the officers' motives more discretionary in nature. I further establish that these disparities vary across departments, and are sensitive to changes in departmental policies. In Chapters 4 and 5, I turn to racial disparities in the content of interactions: how police officers communicate with drivers during traffic stops. In these chapters, I examine racial disparities in the respect that officers' language (Chapter 4) and tone of voice (Chapter 5) connote to drivers, as well as how officers' interpersonal communication influences how citizens' construal of police institutions. To conclude the dissertation, I highlight areas for future research within the institutional interactions framework, along with of implications of the theory for interventions to reduce racial disparities in policing.
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20、心血管药物应用精要 2019/1

摘要:本书为备受推崇心血管用药指南名著,更新为第8版。主要内容包括:β受体阻滞剂,硝酸盐和新型防治心绞痛药,钙通道阻滞药,利尿药,肾素-血管紧张素-醛固酮系统拮抗药,抗心力衰竭药,降压药,抗心律失常药,抗栓、抗凝治疗药,调脂与抗动脉粥样硬化药,代谢综合征与糖尿病治疗药和对症治疗。对所有的临床工作者--专科医生和全科医生以及各级医学生、医学院教师和科学研究者都有巨大的价值和都能从中获益,有助于他们更深的理解当代心血管药理学,并将这些信息最有效地应用于心血管疾病患者的治疗。
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