Miracle-dz/UniFAR-FTUs huggingface dataset:
A Compact Wideband Rectangular Dielectric Resonator Antenna using Perforations and Edge Grounding

A compact wideband rectangular dielectric resonator antenna (RDRA) is investigated and presented. Perforations improve bandwidth by lowering down the quality factor. The perforations are an array of symmetrical square-shaped slots drilled uniformly on the RDRA. On choosing the optimal size of slots and distance between two consecutive slots, the fundamental TE111 mode of the RDRA is preserved. This aids in making the geometry compact by employing edge grounding. The coaxial probe acts like a monopole that further improves bandwidth by matching, monopole, and higher-order TE131-like mode of the RDRA in the frequency band (2.72-4.3 GHz). The proposed geometry offers a wide impedance bandwidth of 56% for . The measured results show that the radiation efficiency of the proposed antenna is above 85% for the complete bandwidth with the stable radiation pattern.
A supercapacitor based light rail vehicle: system design and operations modes

This paper presents the design and validation process of a supercapacitor storage based light rail vehicle (tramway). The main design aspects of the storage system are described: storage system rating, supercapacitor bank modeling, power electronic converter design and system control and management algorithms. Based on this design procedure, two 200kW bidirectional multichannel buck-boost converter modules have been designed and connected to their respective supercapacitor banks. Comparing with a conventional rail light vehicle, the designed system is able to achieve an improved efficiency and circulate in autonomous mode (without catenary). Besides a series of simulations validating different system operation modes, experimental results obtained from a full scale tramway are also presented.
The prevalence of anxiety among middle and secondary school students in Canada.

OBJECTIVES Adolescents' anxiety is associated with individual and contextual characteristics. The purpose of this study is to estimate the prevalence of anxiety among adolescent youth in grades 6 to 12 and determine whether it is related to socio-economic status and perceptions of learning skills and challenges. METHODS Nationally representative cross-sectional data from the Tell Them From Me survey--Fall 2008 assessment--were used for this study. Item response theory estimates and a cut-off point for anxiety were developed from six Likert items pertaining to anxiety. Csikszentmihalyi's theory of flow was applied to create four different combinations of learning processes and students' skills. RESULTS Females had a higher prevalence of anxiety than males in both middle and secondary schools. The prevalence of anxiety did not vary substantially among schools for either middle or secondary schools. Less than one half of Canadian students can be considered "in flow", that is, feeling confident in their skills and challengedin their classes. Students who lacked confidence in their skills were nearly twice as likely to experience anxiety. CONCLUSION The relation between students' skills, the challenges presented to them at school and anxiety problems deserves attention by parents and school staff. Further research could examine the relationship between direct assessments of students' skills and measures of teaching practices and school policies.
A social network typology and sexual risk-taking among men who have sex with men in Cape Town and Port Elizabeth, South Africa

Abstract Despite the high prevalence of HIV among men who have sex with men in South Africa, very little is known about their lived realities, including their social and sexual networks. Given the influence of social network structure on sexual risk behaviours, a better understanding of the social contexts of men who have sex with men is essential for informing the design of HIV programming and messaging. This study explored social network connectivity, an understudied network attribute, examining self-reported connectivity between friends, family and sex partners. Data were collected in Cape Town and Port Elizabeth, South Africa, from 78 men who have sex with men who participated in in-depth interviews that included a social network mapping component. Five social network types emerged from the content analysis of these social network maps based on the level of connectivity between family, friends and sex partners, and ranged from disconnected to densely connected networks. The ways in which participants reported sexual risk-taking differed across the five network types, revealing diversity in social network profiles. HIV programming and messaging for this population can greatly benefit from recognising the diversity in lived realities and social connections between men who have sex with men.
Alterations in ornithine decarboxylase characteristics account for tolerance of Trypanosoma brucei rhodesiense to D,L-alpha-difluoromethylornithine

Ornithine decarboxylase (ODC), the target enzyme of D,L-alpha-difluoromethylornithine (DFMO), was investigated in four DFMO-tolerant Trypanosoma brucei rhodesiense isolates from East Africa and two DFMO-susceptible T. b. gambiense isolates from West Africa. Neither drug uptake nor inhibition of ODC activity by DFMO in cellular extracts differed in the two trypanosome subspecies. However, the specific ODC activity of the cellular extracts was three times as high in T. b. rhodesiense isolates as in T. b. gambiense isolates. Furthermore, a significant difference in the turnover rate of ODC was observed. The time required to induce a 50% reduction of T. b. rhodesiense ODC activity under cycloheximide pressure (tentative half-life) was about 4.3 h, whereas that required for T. b. gambiense ODC was longer than 18 h. We concluded that the higher specific ODC activity and faster enzyme turnover contributed to a substantial degree to the DFMO tolerance observed in the East African T. b. rhodesiense isolates.
On the assessment of audiovisual cues to speaker confidence by preteens with typical development (TD) and a-typical development (AD)

This paper looks into how preteens with autism (As-perger, PDD-NOS) compare to healthy controls (matched in terms of age, IQ and educational level) in the way they interpret audiovisual expressions produced by adult or child speakers. In previous research, we had recorded utterances from those groups of speakers as they were responding to easy and difﬁcult questions in a quiz-like experiment, so that they were not always equally conﬁdent about the correctness of a given answer. The task given to the preteens in the current study was to judge how certain a speaker appeared in his/her response to a question, where they could base such judgments both on auditory and visual properties of the speakers. Results reveal that all groups of preteens are able to estimate a speaker’s conﬁdence level on the basis of audiovisual properties, albeit that the preteens diagnosed with PDD-NOS performed signiﬁcantly worse at this than the other two groups. Moreover, in line with previous results, participants found the data coming from child speakers harder to judge than those produced by adult speakers.
CAPSL: Common Authentication Protocol Specification Language

CAPSL is a formal language for expressing authentication and key-exchange protocols. It is intended to capture enough of the abstract features of these protocols to perform an analysis for protocol failures. The impetus for such a language grew out of project work in protocol analysis. A common protocol specification language seems necessary to bridge the gap between the typical informal presentations of protocols given in papers and the precise characterizations required to conduct formal analysis. It is hoped that proponents of different analysis techniques will offer algorithms for compiling this language into whatever form they require. Doing so will go a long way toward ensuring that the assumptions made by different techniques, as well as the analysis results, are comparable. Since Denning and Sacco published a replay attack on the Needham-Schroeder protocol in 1981, it has been welI known that protocols for exchanging cryptographic keys over data networks can be vulnerable to message modification attacks. The abundance of flaws in published protocols led to the development of formal techniques for their security aualysis. The proposed techniques, as represented by some of the earlier papers on the subject, include the use of goal-directed state search tools implemented in Prolog, the application of general purpose specification and verification tools, a specially-designed logic of belief, and the application of a model-checking tool for CSP specifications. It has become evident that it was difficult for analysts other than the developers of the various techniques to apply them. One reason for this difficulty is the fact that the protocols had to be m-specified for each technique, and it was not easy to transform the published description of the protocol into the required formal system. Some tool developers began work on translators or compilers that would perform the transformation automatically. The input to any such translator still requires a formally-defined language, but it can be made similar to the message-oriented protocol descriptions that are typically published. Besides our initial work on CAPSL for the Interrogator at MITRE, there were independent efforts by Steve Brai and Gavin Lowe, with a similar language, CASPER, for the application of FDR using a CSP model-checking approach. The idea of having a single common protocol specification language that could be used as the input format for any formal analysis technique was first presented at the 1996 Isaac Newton Institute Programme on Computer Security, Cryptology, and Coding Theory. The design of CAPSL is still in progress. Current documentation for the language, and discussions on design alternatives and extensions, may be found at the CAPSL home page on the World-Wide Web, at the URL http:// www.mitre. org/research/capsI.
Response to imatinib mesylate in patients with chronic myeloproliferative diseases with rearrangements of the platelet-derived growth factor receptor beta.

BACKGROUND A small proportion of patients with chronic myeloproliferative diseases have constitutive activation of the gene for platelet-derived growth factor receptor beta (PDGFRB), which encodes a receptor tyrosine kinase. The gene is located on chromosome 5q33, and the activation is usually caused by a t(5;12)(q33;p13) translocation associated with an ETV6-PDGFRB fusion gene. The tyrosine kinase inhibitor imatinib mesylate specifically inhibits ABL, PDGFR, and KIT kinases and has impressive clinical efficacy in BCR-ABL-positive chronic myeloid leukemia. METHODS We treated four patients who had chronic myeloproliferative diseases and chromosomal translocations involving 5q33 with imatinib mesylate (400 mg daily). Three of the four patients presented with leukocytosis and eosinophilia; their leukemia cells carried the ETV6-PDGFRB fusion gene. The fourth patient had leukocytosis, eosinophilia, and a t(5;12) translocation involving PDGFRB and an unknown partner gene; he also had extensive raised, ulcerated skin lesions that had been present for a long time. RESULTS In all four patients, a normal blood count was achieved within four weeks after treatment began. In the patient with skin disease, the lesions began to resolve shortly after treatment began. The t(5;12) translocation was undetectable by 12 weeks in three patients and by 36 weeks in the fourth patient. In the three patients with the ETV6-PDGFRB fusion gene, the transcript level decreased, and in one patient, it became undetectable by 36 weeks. All responses were durable at 9 to 12 months of follow-up. CONCLUSIONS Imatinib mesylate induces durable responses in patients with chronic myeloproliferative diseases associated with activation of PDGFRB.
Bronchial anthracofibrosis: The spectrum of radiological appearances

Abstract Bronchial anthracofibrosis (BAF), caused by long-standing exposure to biomass fuel smoke, has emerged as a distinct pulmonary disease. It is usually seen in elderly females who have worked long hours in poorly ventilated kitchen full of smoke due to incomplete combustion of biomass fuel. The diagnosis is confirmed on bronchoscopic visualization of bluish-black anthracotic pigmentation along with narrowing/distortion of the affected bronchus. BAF has been associated with clinical conditions such as pulmonary tuberculosis, chronic obstructive pulmonary disease, pneumonia, and malignancy. Tuberculosis, once thought to be the causative agent for BAF, is now considered to be an association. BAF has a diverse radiological presentation and the presence of associated clinical conditions often confound the radiological picture. The imaging features of BAF include primary imaging characteristics, which pertains to the disease entity directly, and secondary features based on the presence of associated conditions. High-resolution computed tomography findings of multifocal bronchial narrowing and peribronchial cuffing are considered to be specific diagnostic features of BAF. In addition, the diagnostic probability is increased in the presence of mediastinal adenopathy and collapse/atelectasis with middle lobe syndrome being the most common presentation. This pictorial essay highlights the range of imaging appearances in patients with BAF.
Heating and cooling of the neutral ISM in the NGC4736 circumnuclear ring

The manner in which gas accretes and orbits within circumnuclear rings has direct implications for the star formation process. In particular, gas may be compressed and shocked at the inflow points, resulting in bursts of star formation at these locations. Afterwards the gas and young stars move together through the ring. In addition, star formation may occur throughout the ring, if and when the gas reaches sufficient density to collapse under gravity. These two scenarios for star formation in rings are often referred to as the `pearls on a string' and `popcorn' paradigms. In this paper, we use new Herschel PACS observations, obtained as part of the KINGFISH Open Time Key Program, along with archival Spitzer and ground-based observations from the SINGS Legacy project, to investigate the heating and cooling of the interstellar medium in the nearby star-forming ring galaxy, NGC4736. By comparing spatially resolved estimates of the stellar FUV flux available for heating, with the gas and dust cooling derived from the FIR continuum and line emission, we show that while star formation is indeed dominant at the inflow points in NGC 4736, additional star formation is needed to balance the gas heating and cooling throughout the ring. This additional component most likely arises from the general increase in gas density in the ring over its lifetime. Our data provide strong evidence, therefore, for a combination of the two paradigms for star formation in the ring in NGC4736.
Relation between the deletion polymorphism of the angiotensin-converting enzyme gene and late luminal narrowing after coronary angioplasty.

BACKGROUND The insertion/deletion (I/D) polymorphism of the angiotensin-converting enzyme (ACE) gene has been implicated in the pathogenesis of coronary artery disease. The deletion allele is strongly associated with the level of circulating ACE and is a potent risk factor for myocardial infarction. Recently, the deletion allele was also associated with the occurrence of visually diagnosed restenosis after percutaneous transluminal coronary angioplasty (PTCA) in a selected population of patients with acute myocardial infarction. METHODS AND RESULTS We investigated the influence of the ACE I/D polymorphism on the occurrence of restenosis after PTCA with the use of quantitative coronary angiography. ACE I/D genotypes were characterized in 118 consecutive patients who had one-vessel disease and were undergoing systematic angiographic follow-up. Coronary angiograms were analyzed before and after PTCA and at follow-up (7.4 +/- 3.0 months). Before PTCA, there were no clinical or angiographic differences among the three groups of genotypes (DD, n = 39; ID, n = 62; II, n = 17). After PTCA, the mean differences in minimal luminal diameter between post-PTCA and pre-PTCA angiograms (acute gain) were identical in the three groups, as was the mean percent residual stenosis. At follow-up angiography, the mean difference in minimal coronary luminal diameter between post-PTCA and follow-up angiograms (late loss) was not significantly different in the three groups of genotypes. The percentage of patients with restenosis defined as a > 50% stenosis was identical in the three groups. CONCLUSIONS In this quantitative study, the I/D polymorphism of the ACE gene had no influence on the occurrence of restenosis after coronary angioplasty.
Optimizing immunosuppression: who can do more with less?

Clinical kidney transplantation has taken a remarkable journey over the last 60 years from concept, to high-risk endeavor for the few, to now a controlled and predictable activity [1,2]. Most of the risk has been taken by patients, many of them desperate, who are the heroes of this progression from a rare event to a common practice around the world. By example, small steps in surgical technique, histocompatibility testing, deceased donor organ recovery and preservation, living donor evaluation and safety, infectious disease isolation and treatment, diagnosing and treating allograft rejection, and the medical management of patients with renal failure both before and after transplant have been incrementally introduced to optimize the outcomes and promote patient safety. However, while we generally understand the role of both acute and chronic rejection in the fate of solid-organ transplants, we remain tentative regarding the use of immunosuppression to control the consequences of the alloimmune response. Although the state of drug-free tolerance may be the ultimate goal for patient care, contemporary clinical transplant practice remains a balance between not enough and too much immunosuppression. Not enough results in rejection, progressive graft injury, and perhaps recurrent disease; too much results in patient injury, primarily infection, and cancer (Fig. 1). The 10-year randomized trial from Thierry et al. [3] in this issue of Transplant International
The "Vichy Syndrome" Problem in History

Historical interest in the ways World War II has been remembered in France has on occasion in the last decade focused on the concept of a "Vichy syndrome. " As used by its protagonists, the Vichy syndrome is a synecdoche for arguments that depict an agonized postwar France somehow attempting to reconcile itself to its history. Vichy, in the language of the Vichy syndrome, has become a metaphor for French collaboration with Nazi genocide. In large measure, the Vichy syndrome as a model has been disseminated by Henry Rousso, whose Le Syndrome de Vichy, 1944-198. was first published in 1987 in France, was republished there in 1990, and appeared in an American translation the next year. ' In 1994, together with Eric Conan, Rousso produced Vichy, un passe qui ne passe pas, whose conceptual model of a Vichy syndrome was based on the earlier work. The various editions of Le Syndrome de Vichy, together with Vichy, un passe, have helped shape the contours of a continuing discussion of Vichy as "syndrome" and "obsessional" and have created an image of a historically unique postwar French retrospective fixation with the Vichy years. Vichy syndrome terminology has crossed the Atlan-
Professional development of academic library professionals in Kerala

The paper aims to bring out the problems and prospects of the professional development opportunities of academic library professionals in the Universities in Kerala. The study is a part of research undertaken to survey the professional development activities and educational needs of library professionals in the major Universities of Kerala because of the developments in Information communication technology. The study recommends methods for improving the knowledge/skills of library professionals. The aim of the study is to evaluate the professional development activities of Library professionals and their attitude towards continuing education programmes. In order to achieve the objectives of the study a survey was conducted with the help of structured questionnaires distributed to 203 library professionals in seven major universities in Kerala, (South India) of which 185 questionnaires were returned. Results of the analysis show that majority of the professionals have pursued higher degrees in library science or IT allied courses after entering the profession, and that they have a positive attitude towards participation in training programmes and workshops. The results show that developments in ICT have a positive influence on majority of library professionals‘ attitude towards continuing education programmes.
Detection of Human Papillomaviruses in Tissue Specimens

Summary During the past decade, molecular methods based on the detection of viral DNA have become a key tool for the detection of human papillomaviruses (HPVs) in tissue. The methods can be divided into two groups: those in which tissue destruction is unavoidable for the detection of HPV DNA, and those in which the detection of viral DNA is performed in a way that allows tissue morphology preservation. Polymerase chain reaction is currently the most sensitive method for HPV detection and an excellent research tool. However, because of frequent contamination problems and lack of standardization, it is not readily applicable to diagnostic laboratories. The recent improvements in in situ hybridization have made it possible for this method to become the most appropriate method for routine detection of HPVs in tissue. At present, however, the use of at least two independent HPV DNA detection methods is indispensable for accurate determination of HPVs.
The influence of neuropsychological rehabilitation on symptomatology and quality of life following brain injury: A controlled long-term follow-up

Primary objective: To establish whether, following acquired brain injury, intensive post-acute neuropsychological rehabilitation could have long-term beneficial effects. Methods and procedures: A group of 37 adults who had suffered cerebrovascular accidents or traumatic brain injuries and who had undergone a rehabilitation programme were followed up 12–22 years post-injury, together with a non-rehabilitated control group of 13 adults, matched for brain-injury and demographics characteristics. Both groups completed a set of questionnaires concerning broad aspects of psychological well-being. Significant others completed similar questionnaires. Main outcomes and results: The rehabilitation group showed significantly lower levels of brain injury symptoms and higher levels of competency at follow-up. They also rated internal locus of control and general self-efficacy as significantly higher than the control group. Anxiety and depression levels were significantly lower and quality of life significantly higher in the rehabilitation group for both the subjects themselves and for their significant others. Conclusions: Within methodological limitations this study suggests that post-acute neuropsychological rehabilitation can have long-term beneficial effects.