Various aspects of semantic features drive early vocabulary development, but less is known about how the global and local structure of the overall semantic feature space influences language acquisition. A feature network of English words was constructed from a large database of adult feature production norms such that edges in the network represented feature distances between words (i.e., Manhattan distances of probability distributions of features elicited for each pair of words). A word's global feature distinctiveness is measured with respect to (...) all other words in the network and a word's local feature distinctiveness is measured relative to words in sub‐networks derived from clustering analyses. This paper investigates how feature distinctiveness of individual words at local and global scales of the network influences language acquisition. Regression analyses indicate that global feature distinctiveness was associated with earlier age of acquisition ratings, and was a stronger predictor of age of acquisition than local feature distinctiveness. These results suggest that the global structure of the semantic feature network could play an important role in language acquisition, whereby globally distinctive concepts help to structure vocabulary development over the lifespan. (shrink)

Augustine of Hippo was regarded by sixteenth century Europe as one of the most contested religious and philosophical authorities. Through deep examination of the production, circulation and consumption of Augustine's works, Arnoud Visser reveals the wildly contrasting ways in which he was read and appropriated by publishers, humanist scholars, and individual readers.

Investigating instances where lexical selection fails can lead to deeper insights into the cognitive machinery and architecture supporting successful word retrieval and speech production. In this paper, we used a multiplex lexical network approach that combines semantic and phonological similarities among words to model the structure of the mental lexicon. Network measures at different levels of analysis (degree, network distance, and closeness centrality) were used to investigate the influence of network structure on picture naming accuracy and errors by people with (...) Anomic, Broca's, Conduction, and Wernicke's aphasia. Our results reveal that word retrieval is influenced by the multiplex lexical network structure in at least two ways—(a) the accuracy of production and error type on incorrect productions were influenced by the degree and closeness centrality of the target word, and (b) error type also varied in terms of network distance between the target word and produced error word. Taken together, the analyses demonstrate that network science techniques, particularly the use of the multiplex lexical network to simultaneously represent semantic and phonological relationships among words, reveal how the structure of the mental lexicon influences language processes beyond traditionally examined psycholinguistic variables. We propose a framework for how the multiplex lexical network approach allows for understanding the influence of mental lexicon structure on word retrieval processes, with an eye toward a better understanding of the nature of clinical impairments, like aphasia. (shrink)

Conventional and well-established guidelines for the ethical conduct of clinical research are necessary but not sufficient for addressing research dilemmas related to public health research. There is a particular need for a public health ethics framework when, in the face of an epidemic, research is urgently needed to promote the common good. While there is limited experience in the use of a public health ethics framework, the value and potential of such an approach is increasingly being appreciated. Here we use (...) two examples of adolescent women as potential candidates for participation in microbicide trials to illustrate how ethical decisions for public health research can be enhanced by drawing on both traditional research ethics guidance, and the emerging framework for public health ethics. (shrink)

Stylometry can be defined as the use of numerical methods for the solution of literary problems, most often problems of authorship, integrity, and chronology. As stylometry has been described it seems hardly more than the application of common sense to a literary situation. For example: It consists in collecting as many peculiarities of style and grammar as possible from these works [the dialogues of Plato], particularly the Laws, which are known, or for good reasons supposed to belong to the author's (...) latest period, and observing the frequency with which these occur in other dialogues. If it is then found, e.g., that one dialogue uses commonly 100 of these, another but 60, it is reasonable to suppose the former to be nearer in time to the Laws, i.e. later. (shrink)

Stylometry can be defined as the use of numerical methods for the solution of literary problems, most often problems of authorship, integrity, and chronology. As stylometry has been described it seems hardly more than the application of common sense to a literary situation. For example: It consists in collecting as many peculiarities of style and grammar as possible from these works [the dialogues of Plato], particularly the Laws, which are known, or for good reasons supposed to belong to the author's (...) latest period, and observing the frequency with which these occur in other dialogues. If it is then found, e.g., that one dialogue uses commonly 100 of these, another but 60, it is reasonable to suppose the former to be nearer in time to the Laws, i.e. later. (shrink)

At the end of the nineteenth century, the main source of information about the city of Łódź were not local periodicals (as there were no such publications), but correspondence printed in Warsaw papers. Apart from regular reports, m years 1898 and 1899, in one of leading Warsaw daily papers, Kurier Warszawski, there appeared a series of articles under the title “Znasz-li ten kraj?” signed by Antoni Sygietyński. It was the aftermath of the writer’s visit in Łódź (as it was noticed (...) in Goniec Łódzki, Sygietyński arrived in the city on 3rd of December 1889). The reports concerning the life of the textile city appeared in six issues of Kurier Warszawski, dated from 5th, 6th, 15th and 17th of December 1989 and from 6th and 8th of January in the next year. The author of Na skałach Calvados underlined that the title of the series is not unintentional, because Łódź, according to him, was a fully developed city, which had vast contacts with other regions of the world (Russia, Far East, South and North America) rather than with the rest of Polish cities. The writer compares Łódź to a mushroom, which develops rapidly in favourable conditions, whereas in unfavourable circumstances it becomes a latent form of life. Sygietyński underlines also that the city’s growth and organization reminds an American model. The writer attempts to change a stereotypical opinions about the city, mainly concerning its rapid development of industry, huge number of inhabitants or a triplenational character of the textile metropolis. The author aims at acknowledging a true Lodzermensch, he scrutinizes the cultural life of the city. During his visit in Łódź Sygietyński took part in the opening night of Hauptman’s Dwór zatopiony, and in Christmas party in a catholic shelter for children. The meeting with the youngest citizens gave an opportunity for a closer examination of the conditions they lived in as well as of the financial straits their caretaker, Father Szmidel, was facing. The experience triggered an idea of a charity concert, which Sygietyński decided to organize in Łódź The income was donated for modernization of the shelter. The concert was organized on 25th of March 1899 with the participation of the most famous Warsaw artists (Kruszelnik Borcewicz, Michałowski, Wierzbiłowicz, Trenkiel). Such was the social and cultural scale of the event that it was reported in a number of newspapers. Głos underlined Sygietyński’s input into organization by describing him as „a moral impresario of the show”. The author of Wysadzony z siodla while organizing the concert had two main aims: first - to collect money for the shelter, and the second - to arouse a passion for art among the citizens of Łódź. (shrink)

Objective: The objectives of this study are to understand the current functions, structure and operation of hospital ethics committees (HECs) in Shanghai and to facilitate their improvement. Methods: (1) A questionnaire survey, (2) interviews with secretaries and (3) on-site document reviews of HECs in Shanghai were used in the study, which surveyed 33 hospitals. Results: In Shanghai, 57.56% of the surveyed hospitals established HECs from 1998 to 2005. Most HECs used bioethical review of research involving human subjects as well as (...) bioethical review or consultation regarding medical care services and administrative decision- making. Of the surveyed HECs, 14.3% did not provide any formal bioethical training to the HECs’ members and many HECs had no standard operating procedures. Some HECs had no clear definition of what was “conflict of interest” that should be considered by the HECs, while 44.4% of the HECs did not perform continuing review. Discussion: After the issues of related national regulations, more and more hospitals established HECs in Shanghai, but the functions of HECs need to be further developed and formal training on bioethics should be provided to HEC members. To assure the independence and good performance of HECs, the conflict of interest procedure, the standard operating procedures and bioethical review should be improved. Conclusion: HECs in Shanghai had developed in the preceding 10 years and they played great roles in protecting the rights and welfare of human subjects and patients; some areas need improvement. (shrink)