bluuebunny/crossref_metadata_2025_split huggingface dataset:
Feasibility and acceptability of the DSM‐5 Field Trial procedures in the Johns Hopkins Community Psychiatry Programs
Authors: Clarke Diana E. , Wilcox Holly C. , Miller Leslie , Cullen Bernadette , Gerring Joan , Greiner Lisa H. , Newcomer Alison , McKitty Mellisha V. , Regier Darrel A. , Narrow William E. 
Published: February 2014

AbstractThe Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM‐5) contains criteria for psychiatric diagnoses that reflect advances in the science and conceptualization of mental disorders and address the needs of clinicians. DSM‐5 also recommends research on dimensional measures of cross‐cutting symptoms and diagnostic severity, which are expected to better capture patients' experiences with mental disorders. Prior to its May 2013 release, the American Psychiatric Association (APA) conducted field trials to examine the feasibility, clinical utility, reliability, and where possible, the validity of proposed DSM‐5 diagnostic criteria and dimensional measures. The methods and measures proposed for the DSM‐5 field trials were pilot tested in adult and child/adolescent clinical samples, with the goal to identify and correct design and procedural problems with the proposed methods before resources were expended for the larger DSM‐5 Field Trials. Results allowed for the refinement of the protocols, procedures, and measures, which facilitated recruitment, implementation, and completion of the DSM‐5 Field Trials. These results highlight the benefits of pilot studies in planning large multisite studies. Copyright © 2013, American Psychiatric Association. All rights reserved.
Reporting suicide attempts: consistency and its determinants in a large mental health study
Authors: Eikelenboom Merijn , Smit Johannes H. , Beekman Aartjan T. F. , Kerkhof Ad J. F. M. , Penninx Brenda W. J. H. 
Published: February 2014

AbstractA lifetime history (LTH) of suicide attempts (SAs) is frequently assessed in mental health surveys. However, little is known about the reliability of assessing a LTH of SA. This study examined the consistency and its determinants of reporting a LTH of SA in a large cohort of persons with a history of depression and/or anxiety. Data are from the baseline and two‐year assessments of the Netherlands Study of Depression and Anxiety. Persons with a Composite International Diagnostic Interview (CIDI)‐based lifetime depressive and/or anxiety disorder (N = 1973) constitute the study sample. A LTH of SAs was assessed at baseline and at two‐year follow‐up. Of the persons who reported at either interview a LTH of SAs, more than one‐third did not report this consistent at both interviews. Moreover, indications were found for more consistent reporting among persons with a higher number of SAs and among persons with current (severe) psychopathology as compared to those with remitted or less severe current psychopathology. Our results showed that even a salient topic as a history of SAs is prone for reporting errors, and that current psychological state influences reporting of a LTH of SAs. Copyright © 2014 John Wiley & Sons, Ltd.
PROMISE: Parallel‐imaging and compressed‐sensing reconstruction of multicontrast imaging using SharablE information
Authors: Gong Enhao , Huang Feng , Ying Kui , Wu Wenchuan , Wang Shi , Yuan Chun 
Published: February 2014

PurposeA typical clinical MR examination includes multiple scans to acquire images with different contrasts for complementary diagnostic information. The multicontrast scheme requires long scanning time. The combination of partially parallel imaging and compressed sensing (CS‐PPI) has been used to reconstruct accelerated scans. However, there are several unsolved problems in existing methods. The target of this work is to improve existing CS‐PPI methods for multicontrast imaging, especially for two‐dimensional imaging.Theory and MethodsIf the same field of view is scanned in multicontrast imaging, there is significant amount of sharable information. It is proposed in this study to use manifold sharable information among multicontrast images to enhance CS‐PPI in a sequential way. Coil sensitivity information and structure based adaptive regularization, which were extracted from previously reconstructed images, were applied to enhance the following reconstructions. The proposed method is called Parallel‐imaging and compressed‐sensing Reconstruction Of Multicontrast Imaging using SharablE information (PROMISE).ResultsUsing L1‐SPIRiT as a CS‐PPI example, results on multicontrast brain and carotid scans demonstrated that lower error level and better detail preservation can be achieved by exploiting manifold sharable information. Besides, the privilege of PROMISE still exists while there is interscan motion.ConclusionUsing the sharable information among multicontrast images can enhance CS‐PPI with tolerance to motions. Magn Reson Med 73:523–535, 2015. © 2014 Wiley Periodicals, Inc.
Duration of the pre‐diagnostic interval in medulloblastoma is subgroup dependent
Authors: Ramaswamy Vijay , Remke Marc , Shih David , Wang Xin , Northcott Paul A. , Faria Claudia C. , Raybaud Charles , Tabori Uri , Hawkins Cynthia , Rutka James , Taylor Michael D. , Bouffet Eric 
Published: February 2014

BackgroundChildren presenting with medulloblastoma have a wide range of initial presenting symptoms. However, the influence of underlying tumor biology on the initial presentation of medulloblastoma is currently unknown. In light of the recent discovery of distinct medulloblastoma subgroups, we sought to define the initial presentation of childhood medulloblastoma in a subgroup specific manner.ProcedureWe assembled a cohort of 126 medulloblastoma cases at the Hospital for Sick Children between 1994 and 2012 and determined subgroup affiliation using nanoString. Clinical details pertaining to the initial presentation were determined through a retrospective chart review.ResultsThe median pre‐diagnostic interval across all medulloblastoma cases was 4 weeks (IQR: 4–12 weeks). Strikingly, when the pre‐diagnostic interval was then determined in a subgroup specific manner, cases with WNT and Group 4 tumors showed significantly longer median pre‐diagnostic intervals of 8 weeks compared to 2 weeks for SHH and 4 weeks for Group 3 (P = 0.0001). Younger age was significantly associated with a prolonged pre‐diagnostic interval (P = 0.02 for all). When stratifying by subgroup the association with age was only significant in Group 4 (P = 0.04 for Group 4). Improved survival was significantly associated with a longer pre‐diagnostic interval (P = 0.02), however is no longer significant when controlling for subgroup (P = 0.07).ConclusionsThe duration of the pre‐diagnostic interval in childhood medulloblastoma is highly subgroup dependent, further highlighting the clinical heterogeneity and biological relevance of the four principle subgroups of medulloblastoma. Pediatr Blood Cancer 2014;61:1190–1194. © 2014 Wiley Periodicals, Inc.
DFT and MP2 Study of Intermolecular Interaction of 5‐Aminotetrazole and Hydrazine: Enthalpy of Formation of Hydrazinium 5‐Aminotetrazolate in the Gas Phase
Authors: Najafi Chermahini Alireza , Farrokhpour Hossein , Eghbalsaeid Mohammadbagher , Teimouri Abbas 
Published: February 2014

AbstractThe tautomerism of all possible forms of 5‐aminotetrazole (AT1–AT7) in the gas phase and continuum solvent was studied theoretically. The calculations were separately performed at the MP2 and CAM‐B3LYP levels of theory, using the 6‐311++G(d,p) basis set. It was found that 5‐aminotetrazole in the 2H form (AT1) is the most stable isomer in both the gas phase and in solution. In addition, the aggregation of various isomers of 5‐aminotetrazole with hydrazine was investigated in the gas phase and in solution. Finally, the standard enthalpy of formations of the different structures of hydrazinium 5‐aminotetrazolate was determined in the gas phase. Using the calculated standard enthalpy of formation of different structures of hydrazinium 5‐aminotetrazolate in the gas phase and considering their Boltzmann population ratios, a single value has been reported for the standard enthalpy of formation of hydrazinium 5‐aminotetrazolate considering all of the tautomers. The calculated values are in excellent agreement with the experimentally reported heat of formation for the hydrazinium 5‐aminotetrazolate.
Energetic Salts of 5‐(5‐Azido‐1H‐1,2,4‐triazol‐3‐yl)tetrazole
Authors: Huber Stefan , Izsák Dániel , Karaghiosoff Konstantin , Klapötke Thomas M. , Reuter Stephan 
Published: February 2014

AbstractSeveral metal and nitrogen‐rich salts of the recently presented 5‐(5‐azido‐1H‐1,2,4‐triazol‐3‐yl)tetrazole (AzTT), including silver (1), copper(I) (2), potassium (3), cesium (4), copper(II) (7), ammonium (8), and guanidinium (9), as well as the respective double‐salts of 3, 4, 8 and 9, were prepared and well characterized by IR and multinuclear (1H, 13C, 14N) NMR spectroscopy, DSC, mass spectrometry, elemental analysis and one (4) additionally by single‐crystal X‐ray diffraction. The sensitivities towards impact, friction and electrostatic discharge were determined according to BAM standards, revealing most of the metal salts as highly sensitive and the nitrogen‐rich salts as insensitive. The metal salts were further tested for their ability of being primary explosives.
Technology for III‐N heterogeneous mixed‐signal electronics
Authors: Chen Kevin J. , Kwan Alex Man Ho , Jiang Qimeng 
Published: February 2014

III‐N devices are suitable for high power RF/microwave amplifier, high temperature electronics, and power switches applications, and the peripheral mixed‐signal electronics with sensing, protection, and control functions could provide optimized performance, increased functionality, and enhanced reliability. This paper addresses the technology to discuss the technology options of implementing III‐N mixed‐signal circuits, and then reviews the recent progress in the expansion of design library, based on monolithically integrated enhancement/depletion (E/D)‐mode AlGaN/GaN HEMTs on GaN‐on‐silicon substrates. An integrated GaN proportional‐to‐absolute‐temperature (PTAT) voltage source.
Cooperative Q‐learning techniques for distributed online power allocation in femtocell networks
Authors: Saad Hussein , Mohamed Amr , ElBatt Tamer 
Published: February 2014

AbstractIn this paper, we address the problem of distributed interference management of femtocells that share the same frequency band with macrocells using distributed multi‐agent Q‐learning. We formulate and solve two problems representing two different Q‐learning algorithms, namely, femto‐based distributed and sub‐carrier‐based distributed power controls using Q‐learning (FBDPC‐Q and SBDPC‐Q). FBDPC‐Q is a multi‐agent algorithm that works on a global basis, for example, deals with the aggregate macrocell and femtocell capacities. Its complexity increases exponentially with the number of sub‐carriers in the system. Also, it does not take into consideration the sub‐carrier macrocell capacity as a constraint. To overcome these problems, SBDPC‐Q is proposed, which is a multi‐agent algorithm that works on a sub‐carrier basis, for example, sub‐carrier macrocell and femtocell capacities. Each of FBDPC‐Q and SBDPC‐Q works in three different learning paradigms: independent (IL), cooperative (CL), and weighted cooperative (WCL). IL is considered the simplest form for applying Q‐learning in multi‐agent scenarios, where all the femtocells learn independently. CL and WCL are the proposed schemes in which femtocells share partial information during the learning process in order to strike a balance between practical relevance and performance. We prove the convergence of the CL paradigm when used in the FBDPC‐Q algorithm. We show via simulations that the CL paradigm outperforms the IL paradigm in terms of the aggregate femtocell capacity, especially in networks with large number of femtocells and large number of power levels. In addition, we propose WCL to address the CL limitations. Finally, we evaluate the robustness and scalability of both FBDPC‐Q and SBDPC‐Q, against several typical dynamics of plausible wireless scenarios (fading, path loss, random activity of femtocells, etc.). We show that the CL paradigm is the most scalable to large number of femtocells and robust to the network dynamics compared with the IL and WCL paradigms. Copyright © 2014 John Wiley & Sons, Ltd.
Overview on evolutionary subgroup discovery: analysis of the suitability and potential of the search performed by evolutionary algorithms
Authors: Carmona Cristóbal J. , González Pedro , del Jesus María José , Herrera Francisco 
Published: February 2014

Subgroup discovery (SD) is a descriptive data mining technique using supervised learning. In this article, we review the use of evolutionary algorithms (EAs) for SD. In particular, we will focus on the suitability and potential of the search performed by EAs in the development of SD algorithms. Future directions in the use of EAs for SD are also presented in order to show the advantages and benefits that this search strategy contribute to this task.This article is categorized under:

Technologies > Computational Intelligence
Effects of antibacterial agents and drugs monitored by atomic force microscopy
Authors: Longo Giovanni , Kasas Sandor 
Published: February 2014

AbstractOriginally invented for topographic imaging, atomic force microscopy (AFM) has evolved into a multifunctional biological toolkit, enabling to measure structural and functional details of cells and molecules. Its versatility and the large scope of information it can yield make it an invaluable tool in any biologically oriented laboratory, where researchers need to perform characterizations of living samples as well as single molecules in quasi‐physiological conditions and with nanoscale resolution. In the last 20 years, AFM has revolutionized the characterization of microbial cells by allowing a better understanding of their cell wall and of the mechanism of action of drugs and by becoming itself a powerful diagnostic tool to study bacteria. Indeed, AFM is much more than a high‐resolution microscopy technique. It can reconstruct force maps that can be used to explore the nanomechanical properties of microorganisms and probe at the same time the morphological and mechanical modifications induced by external stimuli. Furthermore it can be used to map chemical species or specific receptors with nanometric resolution directly on the membranes of living organisms. In summary, AFM offers new capabilities and a more in‐depth insight in the structure and mechanics of biological specimens with an unrivaled spatial and force resolution. Its application to the study of bacteria is extremely significant since it has already delivered important information on the metabolism of these small microorganisms and, through new and exciting technical developments, will shed more light on the real‐time interaction of antimicrobial agents and bacteria.This article is categorized under:

Diagnostic Tools > Diagnostic Nanodevices
Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease
Nanotechnology Approaches to Biology > Nanoscale Systems in Biology
Four CoII/MnII Coordination Compounds Constructed from Dipyrido[3,2‐d:2′,3′‐f]quinoxaline and Different Dicarboxylates: Electrochemical, Photoluminescent, and Magnetic Properties
Authors: Liu Guo‐Cheng , Qu Yun , Wang Xiu‐Li , Zhang Ju‐Wen , Kan Xiao‐Min , Chen Nai‐Li 
Published: February 2014

AbstractFour CoII/MnII coordination compounds, namely, [Co(dpq)(L1)(H2O)1.5] (1), [Co(dpq)(L2)(H2O)2]·H2O (2), [Mn2(dpq)2(L2)2]·2H2O (3), and [Mn(dpq)(L3)] (4) [H2L1 = 5‐methylisophthalic acid, H2L2 = 5‐hydroxyisophthalic acid, and H2L3 = bis(sulfanediyl) thiadiazole diacetic acid] were obtained from hydrothermal reactions of dipyrido [3,2‐d:2′,3′‐f]quinoxaline (dpq) and three structurally related mixed dicarboxylate ligands. Single crystal X‐ray diffraction analysis reveals that compound 1 consists of a dinuclear CoII cluster linked by two carboxylate groups from different L1 anions and a coordination water molecule. Compound 2 is a dimeric structure based on a pair of L2 anions and two CoII ions. Both compounds are finally extended into three dimensional (3D) supramolecular networks by hydrogen bonding and π–π stacking interactions. In compound 3, two MnII ions are linked by a pair of carboxylate groups to form a bimetallic unit, which is extended by pairs of L2 anions to generate a 1D wave‐like band. The adjacent bands are linked by hydrogen bonding interactions forming a 2D supramolecular architecture. Compound 4 is a (4,4)‐connected 2D network based on L3 linkers and dinuclear MnII units connected by two carboxylate groups. The effects of metal ions and dicarboxylates with different spacers on the architectures of the title compounds were discussed. Moreover, the electrochemical behavior of compounds 1 and 2, magnetic properties of compounds 1, 3, and 4, and photoluminescent properties of compounds 1–4 were investigated.
Phylogeography and genetic structure of disjunct Salix arbutifolia populations in Japan
Authors: Nagamitsu Teruyoshi , Hoshikawa Takeshi , Kawahara Takayuki , Barkalov Vyacheslav Yu. , Sabirov Renat N. 
Published: February 2014

AbstractDisjunct geographic distributions of boreal plant species at the southern edges of their ranges are expected to result in low genetic diversity and high genetic differentiation in the disjunct populations. This prediction was tested in a riparian willow, Salix arbutifolia, distributed in the northeastern Eurasian continent and the Sakhalin, Hokkaido, and Honshu Islands, using chloroplast DNA haplotypes and nuclear microsatellite genotypes. Hokkaido and Honshu populations shared a chloroplast haplotype identical to a closely related species, S. cardiophylla. This haplotype was divergent from haplotypes in the Eurasian continent (Primorsky) and the Sakhalin Island. In the nuclear microsatellites, most Hokkaido populations were genetically closer to Primorsky populations than to Sakhalin populations in spite of the geographical vicinity between Sakhalin and Hokkaido. The unexpected genetic divergence between Sakhalin and Hokkaido implies a complicated history of migration and colonization. The most peripheral populations in Honshu had the lowest genetic diversity and were most differentiated from the others. Thus, low genetic diversity and high genetic differentiation at the range periphery suggest substantial effects of genetic drift on genetic structure in the disjunct populations of Salix arbutifolia at the southern edge of its range.
An Exploration of Genetic Counselors’ Needs and Experiences with Prenatal Chromosomal Microarray Testing
Authors: Bernhardt Barbara A. , Kellom Katherine , Barbarese Alexandra , Faucett W. Andrew , Wapner Ronald J. 
Published: February 2014

AbstractBecause of the higher yield over traditional chromosomal analysis, chromosomal microarray analysis (CMA) is being used increasingly in prenatal diagnosis. Unfortunately, the clinical implication of many copy number variants found on prenatal CMA is uncertain, complicating genetic counseling. Recognizing that uncertain results will be encountered frequently as more of the genome is assayed prenatally, we set out to understand the experiences and needs of genetic counselors when counseling patients about uncertain prenatal microarray results, their comfort with various aspects of prenatal genetic counseling, and their interest in additional education and training about prenatal microarray testing. We first interviewed 10 genetic counselors about their experiences of providing pre‐ and post‐test genetic counseling about prenatal CMA. Based on the findings from the counselor interviews, we developed items for a survey to assess the prevalence of genetic counselors’ attitudes towards, experience and comfort with, and educational needs regarding prenatal CMA. Based on surveys completed by 193 prenatal genetic counselors, we found that when there is an uncertain CMA result, only 59 % would be comfortable providing genetic counseling and only 43 % would be comfortable helping a patient make a decision about pregnancy termination. Being less comfortable was associated with seeing fewer patients having prenatal CMA testing. Respondents expressed a high degree of interest in additional education about prenatal CMA and counseling about uncertain results. Further genetic counselor education and training aimed at improving counselors’ personal comfort with uncertain results and communicating about them with patients is needed.
African Films in the Classroom
Authors: Gugler Josef 
Published: February 2014

Abstract:A wealth of excellent films from Africa is readily available for classroom use, even if much of Anglophone Africa remains poorly represented. African films can serve to challenge students' assumptions and to foster a critical examination of Western films set in Africa. Extending the scope of conventional “African” courses to North Africa adds a substantial body of notable productions, some of which address current concerns such as Islamic fundamentalism. African films have to be contextualized; even when they are examined as works of art and as examples of world cinema, full appreciation requires that they be considered in their historical and cultural contexts. When films are used to introduce students to Africa, critical examination is imperative—audiences that have little factual information about Africa all too readily assume that fiction and fact coincide.
Getting Close to Rwandans since the Genocide: Studying Everyday Life in Highly Politicized Research Settings
Authors: Thomson Susan 
Published: February 2014

Abstract:Research with people in highly politicized research settings illuminates the gap between the images that most African governments strive to represent and the sociopolitical realities of everyday life. This article discusses the opportunities and challenges of doing research in postgenocide Rwanda and is a useful resource for researchers contemplating their own projects under such conditions, whether in Rwanda or elsewhere. It discusses the importance of creating personal relationships and meeting people on their terms, as well as such topics as the identification of the research site, building rapport and trust with respondents, safeguarding anonymity and confidentiality, and working with local research assistants and partners.
Postcolonial Cosmopolitan Music in Dar es Salaam: Dr. Remmy Ongala and the Traveling Sounds
Authors: Sanga Imani 
Published: February 2014

Abstract:This article concerns Dr. Remmy Ongala, a Congolese-Tanzanian musician, and the making of postcolonial cosmopolitan music in Dar es Salaam, Tanzania. It argues that Dr. Remmy's music is shaped by the postcolonial consciousness and conditions of contemporary Tanzania. It also shows Dr. Remmy's cosmopolitan citizenship in his songs that address political and social issues. Focusing on his involvement in worldbeat festivals, it argues that he, like other musicians, enters into the worldbeat system not as a fully autonomous individual but as a constituted postcolonial subject, compelled to shape his music in accordance with the demands of the worldbeat system.
The Clergy, Culture, and Political Conflicts in Nigeria
Authors: Adebanwi Wale 
Published: February 2014

Abstract:This article explores contemporary manifestations of the politicization of culture by the Christian clergy in the determination and resolution of political conflicts in Nigeria in general and Yonibaland in particular—against die backdrop of what has been called “the civilizational hegemony of Christianity.” The article approaches religion and the practices it enables as part of a cultural system through which we can capture the specific ways in which religious audiorities pursue political and ethnocultural interests to justify a particular social order.