Sensory exotropia subsequent to senile cataract

INTRODUCTION Sensory exotropia is a condition of unilateral divergence as a sequela to loss of vision or long-standing poor vision in one eye,which was caused by refractive errors,unilateral aphakia or other organic reasons.Convergence insufficiency or disruption is possible.The most important aspect of the manage-ment is to find and/or eliminate and/or reverse a treatable cause of the exotropia.In clinic,the sensory exotropia secondary to senile cataract was often ob-served.Prospectively…     

Researchers’ Mobility,Productivity and Impact: Case of Top Producing Authors in Seven Disciplines

The purpose of this study was to examine whether scientific mobility, either between countries or between affiliations has an effect on researchers’ productivity and impact. In order to investigate this issue, we examined the relationships between the number of institutional affiliations and countries of the top 100 authors in seven disciplines. The selected authors’ profiles contained the number of affiliations and countries each author is assigned. We studied the number of affiliations and countries and compared them to three bibliometric indicators: the number of publications in international, peer-reviewed journals, h-index and Field Weighted Citations Impact. Our findings show that although there are differences in the relationship between mobility, productivity and impact between disciplines, mobility between at least two affiliations has an overall positive effect on both output and impact while mobility between countries does not. Therefore, in most disciplines positive impact and productivity effects are tracked in affiliation mobility within a single country.     

The Influence of E-book Format and Reading Device on Users’ Reading Experience: A Case Study of Graduate Students

To explore the influence of e-book format and reading device on users’ reading experience, this paper studied a group of graduate students’ reading speed and comprehension. The participants were asked to read same length content from the same monograph chapter in both fixed layout format file (PDF) and fluid format file (EPUB) on four different reading devices: laptop, tablet, dedicated e-reader and smart phone. Their reading process, speed and comprehension were recorded and compared. Through the experiment and depth interviews, this study found that e-book format and reading devices have influence on reading speed and reading comprehension level. Generally speaking, people read EPUB files faster than PDF files. For smart phone, dedicated e-reader and tablet, participants’ average reading comprehension is higher when reading EPUB file, while most participants read PDF file faster when they use laptops.     

Mathematical model of cylindrical form tolerance

Tolerance is essential for integration of CAD and CAM.Unfortunately,the meaning of tolerances in the national standard is expressed in graphical and language forms and is not adaptable for expression,processing and data transferring with computers.How to interpret its semantics is becoming a focus of relevant studies.This work based on the mathematical definition of form tolerance in ANSI Y 14.5.1 M-1994,established the mathematical model of form tolerance for cylindrical feature.First,each tolerance in the national standard was established by vector equation.Then on the foundation of tolerance's mathematical definition theory,each tolerance zone's mathematical model was established by inequality based on degrees of feature.At last the variance area of each tolerance zone is derived.This model can interpret the semantics of form tolerance exactly and completely.     

Decryption of pure-position permutation algorithms

Pure position permutation image encryption algorithms,commonly used as image encryption investigated in this work are unfortunately frail under known-text attack.In view of the weakness of pure position permutation algorithm,we put forward an effective decryption algorithm for all pure-position permutation algorithms.First,a summary of the pure position permutation image encryption algorithms is given by introducing the concept of ergodic matrices.Then,by using probability theory and algebraic principles,the decryption probability of pure-position permutation algorithms is verified theoretically; and then,by defining the operation system of fuzzy ergodic matrices,we improve a specific decryption algorithm.Finally,some simulation results are shown.     

Promoting Vocational Development: Methods of Intervention and Techniques Used in the Italian Context

This article describes a Master Educator Series designed to help educators in Italy design and implement comprehensive vocational guidance curriculum. In this “Master Educator” training, a variety of vocational development models and theories are presented. The goal is to provide a broad range of skills in assessment and intervention strategies to prepare educators for developing the curriculum that best fits their unique context. Five curriculum examples are described. Each of these interventions is built around a vocational development topic, including: providing individualized feedback, improving social relationships and connections, using written exercises, and providing mastery and vicarious experiences.     

The no-slip boundary condition in fluid mechanics

A moving fluid in contact with a solid body cannot have velocity relative to the body. Even though the question whether there is slip has been satisfactorily resolved now, it was a difficult and controversial problem. In the first part of this article several basic ideas and details related to this problem are discussed. The concluding part of the article will trace the development of ideas leading to the resolution of this important question. Extreme cases where fluid does slip will also be discussed.     

单个守恒律方程初边值问题的Godunov算法

This paper is concerned with Godunov’s scheme for the initial-boundary value problem of scalar conservation laws. A kind of Godunov’s scheme, which satisfies the boundary entropy condition, was given. By use of the scheme, numerical simulation for the weak entropy solution to the initial-boundary value problem of scalar conservation laws is conducted.     

Manipulating Written Hebrew Roots Across Development: The Interface of Semantic,Phonological and Orthographic Factors

The study examined children and adolescents’ ability to improve root spelling in Hebrew words by paying attention to phonological, semantic and orthographic properties of priming roots. One hundred and fifty 8, 9, 10, 11 and 15-year olds were administered two spelling tests in Hebrew. The same 40 target words were used in both tests, each word containing a root with at least one homophonous letter. Target words were matched one-to-one with 40 priming words containing the same root. The pool of prime-target word pairs was classified into two major groups:Words containing genuine root primes, and words containing false root primes. In the first test, participants had to spell the 40 target words. In the second test they had to spell the same words, each primed by its written genuine or false match. Results showed that unprimed spelling improved with age. Priming – both genuine and false – improved spelling performance significantly, especially in younger grades, but genuine priming was more effective. Spellers were able to overcome phonological opacity in root primes and to take root semantics into account. This finding testifies to the robustness of the root as a unified morphological entity in Hebrew and to children’s ability to make use of their knowledge of lexical and morphological organization in learning to spell.We thank Dominiek Sandra, Harald Baayen and an anonymous reviewer for their important and constructive comments on an earlier version of this paper.