全文获取类型
收费全文 | 132篇 |
免费 | 25篇 |
国内免费 | 1篇 |
专业分类
158篇 |
出版年
2023年 | 4篇 |
2022年 | 2篇 |
2021年 | 3篇 |
2020年 | 6篇 |
2019年 | 6篇 |
2018年 | 4篇 |
2017年 | 4篇 |
2016年 | 6篇 |
2015年 | 7篇 |
2014年 | 11篇 |
2013年 | 14篇 |
2012年 | 5篇 |
2011年 | 11篇 |
2010年 | 4篇 |
2009年 | 7篇 |
2008年 | 11篇 |
2007年 | 4篇 |
2006年 | 7篇 |
2005年 | 3篇 |
2004年 | 3篇 |
2003年 | 1篇 |
2002年 | 1篇 |
2001年 | 1篇 |
2000年 | 4篇 |
1999年 | 3篇 |
1998年 | 4篇 |
1996年 | 2篇 |
1995年 | 2篇 |
1994年 | 1篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 2篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1976年 | 2篇 |
排序方式: 共有158条查询结果,搜索用时 15 毫秒
61.
Sophie Klaus Michael D. Hixson Daniel D. Drevon Christie Nutkins 《Behavioral Interventions》2019,34(3):352-365
Time delay procedures are one of the most commonly used and effective strategies for teaching sight words to learners with disabilities. However, less is known about whether they are differentially effective and efficient with learners. This study compared the effectiveness and efficiency of progressive time delay and simultaneous prompting on sight word acquisition among three learners with autism spectrum disorder using an adapted alternating treatments design across word sets. For two participants, both procedures led to skill acquisition with no clear differences in efficiency. For the remaining participant, neither procedure was effective; therefore, the reading task was changed to a receptive one, and a stimulus fading intervention package was implemented. 相似文献
62.
In the paper we explore the idea of describing Pawlak’s rough sets using three-valued logic, whereby the value t corresponds to the positive region of a set, the value f — to the negative region, and the undefined value u — to the border of the set. Due to the properties of the above regions in rough set theory, the semantics of the logic is
described using a non-deterministic matrix (Nmatrix). With the strong semantics, where only the value t is treated as designated, the above logic is a “common denominator” for Kleene and Łukasiewicz 3-valued logics, which represent
its two different “determinizations”. In turn, the weak semantics—where both t and u are treated as designated—represents such a “common denominator” for two major 3-valued paraconsistent logics.
We give sound and complete, cut-free sequent calculi for both versions of the logic generated by the rough set Nmatrix. Then
we derive from these calculi sequent calculi with the same properties for the various “determinizations” of those two versions
of the logic (including Łukasiewicz 3-valued logic). Finally, we show how to embed the four above-mentioned determinizations
in extensions of the basic rough set logics obtained by adding to those logics a special two-valued “definedness” or “crispness”
operator. 相似文献
63.
Javier Revuelta 《Psychometrika》2008,73(3):385-405
This paper introduces the generalized logit-linear item response model (GLLIRM), which represents the item-solving process
as a series of dichotomous operations or steps. The GLLIRM assumes that the probability function of the item response is a
logistic function of a linear composite of basic parameters which describe the operations, and the coefficients depend on
three design matrices X, Y and Z. The GLLIRM provides a tool for testing hypotheses on the item-solving process and generalizes existing models. An empirical
application is included, in which the model is applied to evaluate sources of difficulty and pairwise item interactions in
a logical analysis test.
This research was supported by the Comunidad de Madrid grant CCG06-UAM/ESP-0043. 相似文献
64.
In the paper we examine the use of non-classical truth values for dealing with computation errors in program specification
and validation. In that context, 3-valued McCarthy logic is suitable for handling lazy sequential computation, while 3-valued
Kleene logic can be used for reasoning about parallel computation. If we want to be able to deal with both strategies without
distinguishing between them, we combine Kleene and McCarthy logics into a logic based on a non-deterministic, 3-valued matrix,
incorporating both options as a non-deterministic choice. If the two strategies are to be distinguished, Kleene and McCarthy
logics are combined into a logic based on a 4-valued deterministic matrix featuring two kinds of computation errors which
correspond to the two computation strategies described above. For the resulting logics, we provide sound and complete calculi
of ordinary, two-valued sequents.
Presented by Yaroslav Shramko and Heinrich Wansing 相似文献
65.
Elizabeth R. Drake Lori Engler-Todd Annette M. O'Connor Linda C. Surh Alasdair Hunter 《Journal of genetic counseling》1999,8(4):217-233
Objective:
To develop and evaluate a decision aid designed to prepare patients of advanced maternal age for counseling about prenatal diagnostic testing.
Setting:
A regional genetics center.
Design:
A before/after study.
Interventions:
Participants used an audioguided workbook to learn about options and outcomes and to clarify personal risks, values, questions, and predispositions.
Subjects:
21 women of advanced maternal age and 17 spouses.
Main outcome measures:
Knowledge of prenatal testing alternatives, decisional conflict, level of anxiety, and acceptability of the decision aid.
Results:
After using the decision aid, participants had significantly reduced decisional conflict (uncertainty) and a significant increase in knowledge. There was no effect on state or trait anxiety. More than three-quarters of participants were satisfied with the length, clarity, balance, and acceptability of the decision aid.
Conclusions:
The decision aid shows promise as a useful aid for preparing couples for counseling. 相似文献
66.
本文采用自行设计的调查问卷,对200例晚期癌症患者家属进行问卷调查,以探讨晚期癌症患者家属对病情告知的态度。结果显示,认为病情应绝对保密者55例(27.5%);暂时保密者107例(53.5%);而不保密者38例(19.0%)。晚期癌症患者家属普遍采取“慈悲原则”,对患者病情持保密态度;癌症患者家属普遍缺乏病情告知策略。临床医生在执行知情同意时应该依据患者不同的家庭情况,有针对性地进行告知。 相似文献
67.
宋三泰 《医学与哲学(人文社会医学版)》2014,(8):10-11
晚期乳腺癌包括局部病变较晚、无法直接手术的患者和初诊时已有远地转移M1及手术后的复发转移患者。目前,我们国家对于这些患者的处理非常混乱,往往初始治疗与首次接诊医生的专业范围大有相关。孤立病灶的晚期乳腺癌患者,全身播散背景已成定势,全身药物治疗才是最重要的治疗手段。对于已经全身转移的晚期乳腺癌患者来讲,是否加用局部病灶切除,需根据患者的全身情况而定。任何一种治疗的选择及安排都应按照药品临床试验管理规范(GCP)原则进行,以期最大限度改善生活质量及生存时间。 相似文献
68.
Charcot-Marie-Tooth (CMT) disease is a hereditary debilitating progressive muscular atrophy and sensory neuropathy of the
distal extremities. CMT is usually nonlife threatening. Signs of the disease usually present in childhood or in young adulthood
and the level of disability can be variable within and between families. Research addressing specific psychosocial and emotional
issues faced by individuals with CMT is limited. Fourteen adults with a clinical and/or molecular diagnosis of CMT (ages 32–74
years) consented to an audio taped interview. The format of the interview was based around an informal questionnaire to prompt
and guide the interviewee to describe their experiences of living with a disabling genetic disorder. The interviews focused
on their experiences of first symptoms and diagnosis, their life experience with CMT, their limitations due to disability
and the role of genetic counseling. This study identifies and explores life issues that individuals with CMT may face, specifically
grief over the loss of independence, emotional pain and stress such as embarrassment and guilt of passing on a gene mutation,
impact on quality of life, the impact of wearing orthopedic devices, and fear of progressive disability. Our findings suggest
that that there are emotional and psychosocial issues specific to affected individuals at different life stages and genetic
counselors need to be aware of these issues in order to provide age appropriate support and advice to individuals affected
by CMT. 相似文献
69.
70.
Consider a multivariate context withp variates andk independent samples, each of sizen. To test equality of thek population covariance matrices, the likelihood ratio test is commonly employed. Box'sF-approximation to the null distribution of the test statistic can be used to computep-values, if sample sizes are not too small. It is suggested to regard theF-approximation as accurate if the sample sizesn are greater than or equal to 1+0.0613p
2+2.7265p-1.4182p
0.5+0.235p
1.4* In (k), for 5p30,k20.This research was supported by the Deutsche Forschungsgemeinschaft through Ste 405/2-1. 相似文献