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41.
Nora Almeida 《Journal of Interlibrary Loan, Document Delivery & Electronic Reserve》2013,23(3-4):77-89
E-Reserves is a library support service that was conceived as a strategic, decentralized response to changes occurring in curricular resource formats during the 1990s. It is a service that has since become ubiquitous in academic libraries and one that is presently facing a crisis spurred by shifts in user culture, e-learning environments, and modes of scholarship production. Challenges facing E-Reserve services are compounded by a professional culture of isolation and by the absence of best practices and internal assessment measures that can serve as effective rubrics to measure changes or test the efficacy of current service models. This analysis of the history of E-Reserve services and evaluation of curricular support needs of faculty and students sheds light on the current crisis and envisions possible futures for the service. The article advocates for a move toward hybrid and iterative service models and highlights the importance of collaboration and outreach to ensure the future viability of E-Reserve services. 相似文献
42.
Mavroudi Anna Almeida Teresa Frennert Susanne Laaksolahti Jarmo Viberg Olga 《Education and Information Technologies》2022,27(2):2367-2383
Education and Information Technologies - The importance of providing mechanisms and tools that effectively support the transition from implicit to explicit representations of Learning Design has... 相似文献
43.
Sandra T. Valadas Leandro S. Almeida Alexandra M. Araújo 《Scandinavian Journal of Educational Research》2017,61(6):721-734
Students’ personal predictors of academic success are particularly relevant for first-year college students, given the specific challenges that these students face when entering higher education (HE). Academic success in HE has been related to multiple factors, including the students’ approaches to learning (SAL), satisfaction (linked to commitment and persistence), study time (effort), and prior academic achievement. This study analyzes the combined effect of these predictors on perceived academic success. Data from 247 students was collected using the Approaches and Study Skills Inventory for Students and other specific measures to assess presage and process variables of academic success. Although academic success is multidimensional and difficult to explain, factors such as prior academic achievement, satisfaction with the course, SAL, and study time contribute to explain perceived academic success in first-year college students. 相似文献
44.
Cecília Galv?o Pedro Reis Sofia Freire Paulo Almeida 《Research in Science Education》2011,41(5):651-666
PARSEL Project emerged from the urgent need to overcome the problem of lack of scientific literacy in the population, which
should be a priority in a society where science occupies a central place. Indeed, nowadays for any citizen to participate
in a responsible and informed way in society he has to be scientifically acknowledgeable. Nevertheless, not only are scientific
levels low in the general population, but also there is an increasing number of students who avoid science and technology
courses and related professions. Within this context, PARSEL aims at raising science and scientific courses’ popularity and
relevancy as well as at enacting teachers’ professional development. In order to achieve these goals, the PARSEL group developed
54 pan-European modules, which were tested and evaluated by several teachers in several European countries and Israel. Teachers
maintained a close relationship with the university, were highly encouraged to appropriate the modules and to adapt them to
their local conditions and, also to discuss and share their experiences. In Portugal, modules were tested by a group of eight
teachers, and their students. This paper presents data concerning teachers’ evaluation. Data was collected by means of interviews,
observation and written documents and reveals that teachers positively evaluated PARSEL’s impact on their own professional
development. Furthermore, they considered modules as well as the teaching-learning approach essential for making science learning
relevant and popular for their students. 相似文献
45.
46.
Effectiveness of three‐dimensional digital animation in teaching human anatomy in an authentic classroom context 下载免费PDF全文
Nady Hoyek Christian Collet Franck Di Rienzo Mickael De Almeida Aymeric Guillot 《Anatomical sciences education》2014,7(6):430-437
Three‐dimensional (3D) digital animations were used to teach the human musculoskeletal system to first year kinesiology students. The purpose of this study was to assess the effectiveness of this method by comparing two groups from two different academic years during two of their official required anatomy examinations (trunk and upper limb assessments). During the upper limb section, the teacher used two‐dimensional (2D) drawings embedded into PowerPoint® slides and 3D digital animations for the first group (2D group) and the second (3D group), respectively. The same 3D digital animations were used for both groups during the trunk section. The only difference between the two was the multimedia used to present the information during the upper limb section. The 2D group surprisingly outperformed the 3D group on the trunk assessment. On the upper limb assessment no difference in the scores on the overall anatomy examination was found. However, the 3D group outperformed the 2D group in questions requiring spatial ability. Data supported that 3D digital animations were effective instructional multimedia material tools in teaching human anatomy especially in recalling anatomical knowledge requiring spatial ability. The importance of evaluating the effectiveness of a new instructional material outside laboratory environment (e.g., after a complete semester and on official examinations) was discussed. Anat Sci Educ 7: 430–437. © 2014 American Association of Anatomists. 相似文献
47.
Our aim was to analyse the impact of the characteristics of words used in spelling programmes and the nature of instructional
guidelines on the evolution from grapho-perceptive writing to phonetic writing in preschool children. The participants were
50 5-year-old children, divided in five equivalent groups in intelligence, phonological skills and spelling. All the children
knew the vowels and the consonants B, D, P, R, T, V, F, M and C, but didn’t use them on spelling. Their spelling was evaluated
in a pre and post-test with 36 words beginning with the consonants known. In-between they underwent a writing programme designed
to lead them to use the letters P and T to represent the initial phonemes of words. The groups differed on the kind of words
used on training (words whose initial syllable matches the name of the initial letter—Exp. G1 and Exp. G2—versus words whose
initial syllable is similar to the sound of the initial letter—Exp. G3 and Exp. G4). They also differed on the instruction
used in order to lead them to think about the relations between the initial phoneme of words and the initial consonant (instructions
designed to make the children think about letter names—Exp. G1 and Exp. G3—versus instructions designed to make the children
think about letter sounds—Exp. G2 and Exp. G4). The 5th was a control group. All the children evolved to syllabic phonetisations
spellings. There are no differences between groups at the number of total phonetisations but we found some differences between
groups at the quality of the phonetisations. 相似文献
48.
Michael F. Almeida Carolliny M. Silva Rodrigo S. Chaves Nathan C. R. Lima Renato S. Almeida Karla P. Melo 《Journal of sports sciences》2018,36(12):1363-1370
Moderate physical exercise acts at molecular and behavioural levels, such as interfering in neuroplasticity, cell death, neurogenesis, cognition and motor functions. Therefore, the aim of this study is to analyse the cellular effects of moderate treadmill running upon substantia nigra during early neurodegeneration. Aged male Lewis rats (9-month-old) were exposed to rotenone 1mg/kg/day (8 weeks) and 6 weeks of moderate treadmill running, beginning 4 weeks after rotenone exposure. Substantia nigra was extracted and submitted to proteasome and antioxidant enzymes activities, hydrogen peroxide levels and Western blot to evaluate tyrosine hydroxylase (TH), alpha-synuclein, Tom-20, PINK1, TrkB, SLP1, CRMP-2, Rab-27b, LC3II and Beclin-1 level. It was demonstrated that moderate treadmill running, practiced during early neurodegeneration, prevented the increase of alpha-synuclein and maintained the levels of TH unaltered in substantia nigra of aged rats. Physical exercise also stimulated autophagy and prevented impairment of mitophagy, but decreased proteasome activity in rotenone-exposed aged rats. Physical activity also prevented H2O2 increase during early neurodegeneration, although the involved mechanism remains to be elucidated. TrkB levels and its anterograde trafficking seem not to be influenced by moderate treadmill running. In conclusion, moderate physical training could prevent early neurodegeneration in substantia nigra through the improvement of autophagy and mitophagy. 相似文献
49.
Jediael Machín Almeida Alexander G. Loukianov José M. Cañedo Castañeda Jorge Rivera Dominguez 《Journal of The Franklin Institute》2018,355(7):3221-3248
Using a nonlinear complete order model of a synchronous motor, a robust second order sliding mode observer based control scheme is proposed. For that, a generalized super-twisting 3rd order observer is proposed for nonlinear systems. Based on the proposed observer scheme, a robust rotor flux observer is designed, then, a stator current observer is proposed using a classical super-twisting algorithm for extracting information of the rotor speed by means of the equivalent control method. The control design for the output tracking of a desired reference signal for the rotor speed is carried out with a classical super-twisting sliding mode algorithm and adaptive backstepping techniques. Due to the number of inputs, the flux in the excitation winding, and the direct component of the stator currents are also regulated. Numeric simulations predict a good performance of the closed-loop synchronous motor with parameter variations. 相似文献
50.
Carlos Humberto Almeida Ricardo Duarte Anna Volossovitch António Paulo Ferreira 《Journal of sports sciences》2016,34(14):1355-1362
ABSTRACTThis study aimed to examine the scoring mode (line goal, double goal or central goal) and age-related effects on the defensive performance of youth soccer players during 4v4 small-sided games (SSGs). Altogether, 16 male players from 2 age groups (U13, n = 8, mean age: 12.61 ± 0.65 years; U15, n = 8, 14.86 ± 0.47 years) were selected as participants. In six independent sessions, participants performed the three SSGs each during 10-min periods. Teams’ defensive performance was analysed at every instant ball possession was regained through the variables: ball-recovery type, ball-recovery sector, configuration of play and defence state. Multinomial logistic regression analysis used in this study revealed the following significant main effects of scoring mode and age: (1) line goal (vs. central goal) increased the odds of regaining possession through tackle and in the defensive midfield sector, and decreased the odds of successful interceptions; (2) double goal (vs. central goal) decreased the odds of regaining possession through turnover won and with elongated playing shapes; (3) the probability of regaining possession through interception significantly decreased with age. Moreover, as youth players move forward in age groups, teams tend to structurally evolve from elongated playing shapes to flattened shapes and, at a behavioural level, from defending in depth to more risky flattened configurations. Overall, by manipulating the scoring mode in SSGs, coaches can promote functional and coadaptive behaviours between teams not only in terms of configurations of play, but also on the pitch locations that teams explore to regain possession. 相似文献