bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessing the potential risk of Zika virus epidemics in temperate areas with established Aedes albopictus populations
Authors: Guzzetta Giorgio , Poletti Piero , Montarsi Fabrizio , Baldacchino Frederic , Capelli Gioia , Rizzoli Annapaola , Rosà Roberto , Merler Stefano
Published: April 2016

Based on 2015 abundance of Aedes albopictus in nine northern Italian municipalities with temperate continental/oceanic climate, we estimated the basic reproductive number R0 for Zika virus (ZIKV) to be systematically below the epidemic threshold in most scenarios. Results were sensitive to the value of the probability of mosquito infection after biting a viraemic host. Therefore, further studies are required to improve models and predictions, namely evaluating vector competence and potential non-vector transmissions.
Méthodes d’appropriation de l’innovation
Authors: Le Bas Christian , Szostak Bérangère
Published: April 2016

L’objet d’analyse de cet article est la stratégie de protection de l’innovation dans le contexte d’une PME du secteur de la télémédecine. L’étude met en évidence que 1) même une PME a recours à l’usage conjoint du brevet, dessin et modèle et marque, 2) la notoriété académique de l’équipe médicale constitue un actif important, 3) les actifs de propriété intellectuelle ont une fonction de marqueur d’une capacité à innover, de reconnaissance et d’assurance, 4) lecloudest utilisé pour sécuriser le recueil, le transfert et le stockage des données, ce qui favorise 5) une organisation interne quasi virtuelle conçue pour garder secrets des actifs immatériels essentiels.
Le numérique au service des entités dédiées à l’innovation de rupture
Authors: Ben Mahmoud-Jouini Sihem
Published: April 2016

Plusieurs entreprises mettent en place des entités dédiées à favoriser l’innovation de rupture. En nous appuyant sur l’analyse de huit entités, nous identifions quatre types d’activités qui y sont menées et montrons comment certains outils numériques favorisent leur exécution. Il y a trois types d’outils : ceux qui font le lien avec l’environnement de l’entreprise pour s’approvisionner en idées et connaissances, ceux qui permettent d’identifier et développer les comportements intrapreneurs et ceux favorisant l’expérimentation. Tous concilient la divergence créative de l’exploration avec la maîtrise des coûts et des délais et favorisent la coexistence de différentes formes d’ambidextrie organisationnelles.
L’impact de la similarité sur l’efficacité des outils d’aide à la vente en ligne
Authors: Racat Margot , Capelli Sonia
Published: April 2016

Cette recherche vise à déterminer les leviers d’adoption d’une nouvelle technologie de réalité virtuelle dans le cadre d’un essai de produit. À l’aide d’une expérimentation dans le domaine des cosmétiques, les auteurs comparent l’impact d’un test produit classique avec un test réalisé via un miroir de maquillage virtuel. Ils montrent que le test virtuel impacte positivement la satisfaction de l’individu et son intention d’achat, plus que le test de produit classique, et ce bien que l’échantillon de produit traditionnel soit perçu comme plus proche de la réalité. Les résultats permettent en outre d’appréhender l’intérêt managérial pour les entreprises à intégrer des outils virtuels d’échantillonnage.
Prognostic ability of intraoperative electromyographic monitoring during microvascular decompression for hemifacial spasm to predict lateral spread response outcome
Authors: Lee Sung Ho , Park Bong Jin , Shin Hee Sup , Park Chang Kyu , Rhee Bong Arm , Lim Young Jin
Published: April 2016

OBJECTIVE

Abnormal lateral spread response (LSR) is a typical finding in facial electromyography (EMG) in patients with hemifacial spasm (HFS). Although intraoperative monitoring of LSR has been widely used during microvascular decompression (MVD), the prognostic value of this monitoring is still debated. The purpose of this study was to determine whether such monitoring exhibits prognostic value for the alleviation of LSR after treatment of HFS.

METHODS

Between January 2009 and December 2013, a total of 582 patients underwent MVD for HFS with intraoperative EMG monitoring at Kyung Hee University Hospital. The patients were categorized into 1 of 2 groups according to the presence of LSR at the conclusion of surgery (Group A, LSR free; Group B, LSR persisting). Patients were assessed for the presence of HFS 1 day, 6 months, and 1 year after surgery. Various parameters, including age, sex, symptom duration, offending vertebral artery, and offending perforating artery, were evaluated for their influence on surgical and electrophysiological results.

RESULTS

Overall, HFS was alleviated in 455 (78.2%) patients 1 day after MVD, in 509 (87.5%) patients 6 months after MVD, and in 546 (93.8%) patients 1 year after MVD. Patients in Group B were significantly younger than those in Group A (p = 0.022). Patients with a symptom duration of less than 1 year were significantly more likely to be classified in Group A than were patients whose symptoms had persisted for longer than 10 years (p = 0.023); however, analysis of the entire range of symptom durations did not reveal a significant effect (p = 0.132). A comparison of Groups A and B according to follow-up period revealed that HFS recovery correlated with LSR alleviation over a shorter period, but the same was not true of longer periods; the proportions of spasm-free patients were 80.6% and 71.1% (p = 0.021), 89.4% and 81.9% (p = 0.022), and 93.5% and 94.6% (p = 0.699) 1 day, 6 months, and 1 year after surgery in Groups A and B, respectively.

CONCLUSIONS

Although intraoperative EMG monitoring during MVD was beneficial for identifying the offending vessel and suggesting the most appropriate surgical end point, loss of LSR did not always correlate with long-term HFS treatment outcome. Because the HFS cure rate improved over time, revision might be considered for persistent LSR when follow-up has been performed for more than 1 year and the spasm remains despite adequate decompression.
Neuronavigated percutaneous approach to the sphenopalatine ganglion
Authors: Benedetto Nicola , Perrini Paolo
Published: April 2016

The sphenopalatine ganglion (SPG) has been assumed to be involved in the genesis of several types of facial pain, including Sluder's neuralgia, trigeminal neuralgia, persistent idiopathic facial pain, cluster headache, and atypical facial pain. The gold standard treatments for SPG-related pain are percutaneous procedures performed with the aid of fluoroscopy or CT. In this technical note the authors present, for the first time, an SPG approach using the aid of a neuronavigator.
Endovascular treatment of posterior cerebral artery aneurysms: a single center's experience of 55 cases
Authors: Qin Xuanfeng , Xu Feng , Maimaiti Yashengjiang , Zheng Yongtao , Xu Bin , Leng Bing , Chen Gong
Published: April 2016

OBJECTIVE

Aneurysms of the posterior cerebral artery (PCA) are uncommon. To date, a limited number of studies have examined the outcomes of endovascular treatment for PCA aneurysms. The authors' aim in this study is to report their experience with the endovascular treatment of PCA aneurysms.

METHODS

Between January 2007 and December 2014, 55 patients with 59 PCA aneurysms were treated using the endovascular approach at the authors' institution. Twenty-three patients had 25 saccular aneurysms, and 32 patients had 34 fusiform/dissecting aneurysms. The endovascular modalities included the following: 1) selective occlusion of the aneurysm (n = 22); 2) complete occlusion of the aneurysm and the parent artery (n = 20); 3) parent artery occlusion (n = 6); 4) partial coiling of the aneurysm and the parent artery (n = 5); and 5) occlusion of the dissecting aneurysm sac (n = 2).

RESULTS

The immediate angiographic results included 45 complete occlusions (82%), 2 nearly complete occlusions (4%), and 8 incomplete occlusions (14%). The mean follow-up period of 21.8 months in 46 patients showed 37 stable results, 6 further thromboses, and 3 recurrences. The final results included 41 complete occlusions (89%), 2 nearly complete occlusions (4%), and 3 incomplete occlusions (7%). Procedure-related complications included the following: 1) rebleeding (n = 1); 2) infarction (n = 4); and 3) perforation (n = 1). There was 1 (1.8%) procedure-related death due to rebleeding, and 2 (3.6%) non–procedure-related deaths due to severe subarachnoid hemorrhage. Clinical outcomes were excellent (Glasgow Outcome Scale 5) in 47 of 49 patients at the long-term follow-up.

CONCLUSIONS

PCA aneurysms may be effectively treated by different endovascular approaches with favorable clinical and radiological outcomes. However, patients who present with severe SAH still have an overall poor prognosis. Partial coiling of the aneurysm and the parent artery is an attractive alternative treatment for patients who may not tolerate parent artery occlusion. Further study with a larger case series is necessary for validation of the durability and efficacy of this treatment.
Off-label innovation: characterization through a case study of rhBMP-2 for spinal fusion
Authors: Schnurman Zane , Smith Michael L. , Kondziolka Douglas
Published: April 2016

OBJECTIVE

Off-label therapies are widely used in clinical practice by spinal surgeons. Some patients and practitioners have advocated for increased regulation of their use, and payers have increasingly questioned reimbursment for off-label therapies. In this study, the authors applied a model that quantifies publication data to analyze the developmental process from initial on-label use to off-label innovation, using as an example recombinant human bone morphogenetic protein 2 (rhBMP-2) because of its wide off-label use.

METHODS

As a case study of off-label innovation, the developmental patterns of rhBMP-2 from FDA-approved use for anterior lumbar interbody fusion to several of its off-label uses, including posterolateral lumbar fusion, anterior cervical discectomy and fusion, and posterior lumbar interbody fusion/transforaminal lumbar interbody fusion, were evaluated using the “progressive scholarly acceptance” (PSA) model. In this model, PSA is used as an end point indicating acceptance of a therapy or procedure by the relevant scientific community and is reached when the total number of peer-reviewed studies devoted to refinement or improvement of a therapy surpasses the total number assessing initial efficacy. Report characteristics, including the number of patients studied and study design, were assessed in addition to the time to and pattern of community acceptance, and results compared with previous developmental study findings. Disclosures and reported conflicts of interest for all articles were reviewed, and these data were also used in the analysis.

RESULTS

Publication data indicated that the acceptance of rhBMP-2 off-label therapies occurred more rapidly and with less evidence than previously studied on-label therapies. Additionally, the community appeared to respond more robustly (by rapidly changing publication patterns) to reports of adverse events than to new questions of efficacy.

CONCLUSIONS

The development of off-label therapies, including the influence of investigative methods, regulation, and changing perspectives, can be characterized on the basis of publication patterns. The approach and findings in this report could inform future off-label development of therapies and procedures as well as attempts to regulate off-label use.
Sudden falls as a persistent complication of selective dorsal rhizotomy surgery in children with bilateral spasticity: report of 3 cases
Authors: Grootveld Laura R. , van Schie Petra E. M. , Buizer Annemieke I. , Jeroen Vermeulen R. , van Ouwerkerk Willem J. R. , Strijers Rob L. M. , Becher Jules J. G.
Published: April 2016

Selective dorsal rhizotomy (SDR) surgery is a well-established treatment for ambulatory children with bilateral spastic paresis and is performed to eliminate spasticity and improve walking. The objective of this case report is to describe sudden falls as a persistent complication of SDR. The authors report on 3 patients with bilateral spastic paresis, aged 12, 6, and 7 years at the time of surgery. The percentage of transected dorsal rootlets was around 40% at the L2–S1 levels. Sudden falls were reported with a frequency of several a day, continuing for years after SDR. The falls were often triggered by performing dual tasks as well as occurring in the transition from sitting to standing, during running, after strenuous exercise, or following a fright. Patients also had residual hyperesthesia and dysesthesia of the foot sole. The authors hypothesize that the sudden falls are caused by a muscle inhibition reflex of the muscles in the legs, as an abnormal reaction to a sensory stimulus that is perceived with increased intensity by a patient with hyperesthesia. A favorable effect of gabapentin medication supports this hypothesis.
A comparison of the Wiltse versus midline approaches in degenerative conditions of the lumbar spine
Authors: Street John T. , Andrew Glennie R. , Dea Nicolas , DiPaola Christian , Wang Zhi , Boyd Michael , Paquette Scott J. , Kwon Brian K. , Dvorak Marcel F. , Fisher Charles G.
Published: April 2016

OBJECTIVE

The objective of this study was to determine if there is a significant difference in surgical site infection (SSI) when comparing the Wiltse and midline approaches for posterior instrumented interbody fusions of the lumbar spine and, secondarily, to evaluate if the reoperation rates and specific causes for reoperation were similar for both approaches.

METHODS

A total of 358 patients who underwent 1- or 2-level posterior instrumented interbody fusions for degenerative lumbar spinal pathology through either a midline or Wiltse approach were prospectively followed between March 2005 and January 2011 at a single tertiary care facility. A retrospective analysis was performed primarily to evaluate the incidence of SSI and the incidence and causes for reoperation. Secondary outcome measures included intraoperative complications, blood loss, and length of stay. A matched analysis was performed using the Fisher's exact test and a logistic regression model. The matched analysis controlled for age, sex, comorbidities, number of index levels addressed surgically, number of levels fused, and the use of bone grafting.

RESULTS

All patients returned for follow-up at 1 year, and adverse events were followed for 2 years. The rate of SSI was greater in the midline group (8 of 103 patients; 7.8%) versus the Wiltse group (1 of 103 patients; 1.0%) (p = 0.018). Fewer additional surgical procedures were performed in the Wiltse group (p = 0.025; OR 0.47; 95% CI 0.23–0.95). Proximal adjacent segment failure requiring reoperation occurred more frequently in the midline group (15 of 103 patients; 14.6%) versus the Wiltse group (6 of 103 patients; 5.8%) (p = 0.048). Blood loss was significantly lower in the Wiltse group (436 ml) versus the midline group (703 ml); however, there was no significant difference between the 2 groups in intraoperative complications or length of stay.

CONCLUSIONS

The patients who underwent the Wiltse approach had a decreased risk of wound breakdown and infection, less blood loss, and fewer reoperations than the midline patients. The risk of adjacent segment failure in short posterior constructs is lower with a Wiltse approach.
Evaluation of the reliability and validity of the newer AOSpine subaxial cervical injury classification (C-3 to C-7)
Authors: Silva Otávio Turolo da , Sabba Marcelo Ferreira , Lira Henrique Igor Gomes , Ghizoni Enrico , Tedeschi Helder , Patel Alpesh A. , Joaquim Andrei Fernandes
Published: April 2016

OBJECTIVE

The authors evaluated a new classification for subaxial cervical spine trauma (SCST) recently proposed by the AOSpine group based on morphological criteria obtained using CT imaging.

METHODS

Patients with SCST treated at the authors’ institution according to the Subaxial Cervical Spine Injury Classification system were included. Five different blinded researchers classified patients’ injuries according to the new AOSpine system using CT imaging at 2 different times (4-week interval between each assessment). Reliability was assessed using the kappa index (κ), while validity was inferred by comparing the classification obtained with the treatment performed.

RESULTS

Fifty-one patients were included: 31 underwent surgical treatment, and 20 were managed nonsurgically. Intraobserver agreement for subgroups ranged from 0.61 to 0.93, and interobserver agreement was 0.51 (first assessment) and 0.6 (second assessment). Intraobserver agreement for groups ranged from 0.66 to 0.95, and interobserver agreement was 0.52 (first assessment) and 0.63 (second assessment). The kappa index in all evaluations was 0.67 for Type A, 0.08 for Type B, and 0.68 for Type C injuries, and for the facet modifier it was 0.33 (F1), 0.4 (F2), 0.56 (F3), and 0.75 (F4). Complete agreement for all components was attained in 25 cases (49%) (19 Type A and 6 Type C), and for subgroups it was attained in 22 cases (43.1%) (16 Type A0 and 6 Type C). Type A0 injuries were treated conservatively or surgically according to their neurological status and ligamentous status. Type C injuries were treated surgically in almost all cases, except one.

CONCLUSIONS

While the general reliability of the newer AOSpine system for SCST was acceptable for group classification, significant limitations were identified for subgroups. Type B injuries were rarely diagnosed, and only mild (Type A0) and extreme severe (Type C) injuries had a high rate of interobserver agreement. Facet modifiers and intermediate injury patterns require better descriptions to improve their low agreement in cases of SCST.
Visible-Light-Mediated Synthesis of Diaryl Ethers from Arylboronic Acids and Diaryliodonium Salts
Authors: Liu Li , Tang Jiaqi , Qiang Jian , Li Jian , He Mingyang
Published: April 2016

With visible-light irradiation, a simple and metal-free photocatalytic system for the synthesis of diaryl ethers from arylboronic acids and diaryliodonium salts has been developed. The reaction proceeded in high yield for a range of different substrates in the presence of eosin Y under mild reaction conditions.
Open Channel Discharge Measurement Using 0.127 Metre (5 Inch) Long-Throat Flume
Authors: Nayek Milan , Das Rajib , Das Subhasish , Dutta Prasun , Mazumdar Asis
Published: April 2016

Long-throat flumes are used in flow measurement by developing power curve relationship between water depth and discharge. This structure provides economical and flexible water measurement capabilities for a wide variety of open-channel flow situations. The advantage of these structures includes minimal head loss, low construction cost, adaptability to a variety of channel types, and ability to measure wide ranges of flows with custom-designed structures. A series of detailed laboratory measurements were made under steady-state flow conditions through a Long-throat flume of control section width 0.127 m (5″) as there is no data available for 5″ for any flume length. Free flow and submerged flow calibration were done within flow range 0.005 m3/s to 0.022 m3/s. The result of the calibration shows discharge within calibrated flow range. The proposed equation can determine accurately the discharge with maximum deviation of ±6% and ±8% for stilling well and gauge data respectively. Henceforth, using proposed equations Ditchrider’s table and rated graph was developed for field implementation of the flume.
Water Quality Assessment with Varied Lake Depths by Using Multivariate Statistical Approach
Authors: Jalil Abdul , Yiping Li , Ahmad Ijaz , Khan Khalida
Published: April 2016

Lakes depth is a most important component to evaluate the impacts on water quality scenarios. Present study discusses the impacts of depth on water quality by using multivariate statistical analysis. This well established phenomenon of correlation between lake depth and water is firstly proved by using multivariate statistical techniques. Depth of Rawal Lake was divided into three groups of surface, middle and bottom to analyze impacts between these stages on water quality. There were sixteen parameters (physico-chemical, bacteriological and metals) analyzed for which samples were collected and analyzed from a fresh water Rawal lake for four seasons in 2012-2013. The statistical correlation was developed between the water quality parameters and between the layers, by using multivariate scatterplot, cluster analysis and discriminant analysis. Results of these statistical techniques revealed a strong correlation (positive or negative) among most of the water quality parameters. Aluminum was found to be with medium variability and temperature at high variability in cluster analysis. Statistically significant correlation was found between the two dimensions of canonical discriminant functions with canonical correlation of 0.957 and 0.586. Therefore, these statistical analyses validated the high impact of depth on different water quality parameters.
Spatial and Seasonal Variations of Water Soluble Ions in PM10 of Mid-Brahmaputra Plain of Assam Valley
Authors: Bhuyan Pranamika , Barman Nivedita , Begum Sabrina , Gogoi Dharitri , Borah Sudakshina , Kumar Manish , Sarma Kali Prasad , Hoque Raza Rafiqul
Published: April 2016

A year-long study on water soluble ionic constituents of PM10 was conducted at mid-Brahmaputra plain during 2012-2013. Water soluble ions associated with PM10 viz. SO42-, NO3-, Cl-, F-, NH4+, K+, Ca2+, Na+ and Mg2+ were analyzed using Ion chromatograph (Metrohm 882 Compact IC Professional) for three representative sites. Marked differences were observed regarding PM10 loading and concentrations of major ions in three different sites, with maximum PM10 (71.1 ± 56 μg/m3) at urban site. Among anions, dominance of SO42- and Cl- were observed and Na+, NH4+ and K+ were found to be predominant cations. An explicit seasonal variation of ionic constituents was observed during the study period with maximum abundance of ions during winter season, and SO42- was the most abundant ion during all the seasons. Pre-monsoon season showed influence of crustal input with high mass concentrations of Ca2+ and Na+ in PM10. The equivalent ion balance reveals the fact that except winter season, all other seasons experienced alkaline nature of particulates in the atmosphere. Influence of anthropogenic activities to the ionic constitutions of PM10 was revealed by calculating ionic ratios and enrichment factor. HYSPLIT trajectory analysis showed influence of long-range transport of pollutants to this region.
Musculoskeletal modelling in dogs: challenges and future perspectives
Authors: Jonkers Ilse , Dingemanse Walter , Vanwanseele Benedicte , Vander Sloten Jos , van Bree Henri , Gielen Ingrid , Dries Billy
Published: April 2016

Musculoskeletal models have proven to be a valuable tool in human orthopaedics research. Recently, veterinary research started taking an interest in the computer modelling approach to understand the forces acting upon the canine musculoskeletal system. While many of the methods employed in human musculoskeletal models can applied to canine musculoskeletal models, not all techniques are applicable. This review summarizes the important parameters necessary for modelling, as well as the techniques employed in human musculoskeletal models and the limitations in transferring techniques to canine modelling research. The major challenges in future canine modelling research are likely to centre around devising alternative techniques for obtaining maximal voluntary contractions, as well as finding scaling factors to adapt a generalized canine musculoskeletal model to represent specific breeds and subjects.
Evaluation of a silver-impregnated coating to inhibit colonization of orthopaedic implants by biofilm forming methicillin-resistant Staphylococcus pseudintermedius
Authors: Azab Mohammed , Allen Matthew , Daniels Joshua
Published: April 2016

Objectives: To evaluate the in vitro anti -bacterial activity of a silver-impregnated coating against a biofilm-forming strain of methicillin-resistant Staphylococcus pseud -intermedius (MRSP).

Methods: A clinical MRSP isolate sourced from a failed canine knee implant was evaluated for biofilm production and used in the present study. Using a standard test method and a clinically approved titanium substrate, the antimicrobial activity of a novel silver plasma coating was determined at two times: five minutes after inoculation of the specimens (T0) and after 24 hours of incubation (T24). Scanning electron microscopy was used to evaluate the biofilm formation on specimens.

Results: The tested clinical MRSP isolate was classified as a strong biofilm producer. The silver coating significantly reduced the MRSP growth more than four log steps compared to the non-coated specimens and showed more than 99.98% reduction in the number of colony forming units after 24 hours. Scanning electron microscopy images revealed that silver-coated surfaces did not manifest detectable biofilm, while biofilm formation was readily observed on the control specimens.

Clinical significance: The silver coating exhibited excellent activity against the multi-drug resistant biofilm-forming MRSP isolate. The next stage of this work will involve testing in an animal model of orthopaedic infection. Positive results from animal studies would support the introduction of the silver plasma coating as a new strategy for preventing implant contamination, biofilm formation, and surgical infection in dogs undergoing orthopaedic surgery.

Supplementary Material for this paper is available online at: http://dx.doi.org/10.3415/VCOT-15-08-0134
Bilateral tibial agenesis and syndactyly in a cat
Authors: Murino Carla , Della Valle Giovanni , Fatone Gerardo , Di Dona Francesco
Published: April 2016

Case description: A three-year-old cat was referred to the Veterinary Teaching Hospital, University of Naples, Italy. The cat had severe pelvic limb deformity, and abnormal development of all four paws.

Clinical findings: Radiographs revealed bilateral tibial agenesis, syndactyly, and digital hypoplasia.

Treatment and outcome: No treatment was instituted because of the severity of the injury, the adaptation of the cat to the abnormal condition, and the owner's refusal to permit any treatment.

Clinical relevance: Congenital limb deformities are rarely reported in the cat and tibial agenesis is considered a very rare disease. This congenital anomaly is well documented and classified in man, and it has been associated with other abnormalities in more complex syndromes. This paper reports clinical and radiographic findings in a cat affected by bilateral complete tibial agenesis associated with other congenital anomalies.
NARROW-LINE X-RAY-SELECTED GALAXIES IN THE CHANDRA-COSMOS FIELD. I. OPTICAL SPECTROSCOPIC CATALOG
Authors: Pons E. , Elvis M. , Civano F. , Watson M. G.
Published: April 2016

The COSMOS survey is a large and deep survey with multiwavelength observations of sources from X-rays to the UV, allowing an extensive study of their properties. The central 0.9 deg2 of the COSMOS field have been observed by Chandra with a sensitivity up to 1.9 × 10−16 erg cm−2 s−1 in the full (0.5–10 keV) band. Photometric and spectroscopic identification of the Chandra-COSMOS (C-COSMOS) sources is available from several catalogs and campaigns. Despite the fact that the C-COSMOS galaxies have a reliable spectroscopic redshift in addition to a spectroscopic classification, the emission-line properties of this sample have not yet been measured. We present here the creation of an emission-line catalog of 453 narrow-line sources from the C-COSMOS spectroscopic sample. We have performed spectral fitting for the more common lines in galaxies ([O ii] λ3727, [Ne iii] λ3869, Hβ, [O iii] λλ4959, 5007, Hα, and [N ii] λλ6548, 6584). These data provide an optical classification for 151 (i.e., 33%) of the C-COSMOS narrow-line galaxies based on emission-line diagnostic diagrams.
RINGED ACCRETION DISKS: INSTABILITIES
Authors: Pugliese D. , Stuchlík Z.
Published: April 2016

We analyze the possibility that several instability points may be formed, due to the Paczyński mechanism of violation of mechanical equilibrium, in the orbiting matter around a supermassive Kerr black hole. We consider a recently proposed model of a ringed accretion disk, made up by several tori (rings) that can be corotating or counter-rotating relative to the Kerr attractor due to the history of the accretion process. Each torus is governed by the general relativistic hydrodynamic Boyer condition of equilibrium configurations of rotating perfect fluids. We prove that the number of the instability points is generally limited and depends on the dimensionless spin of the rotating attractor.
Association between Dietary Patterns, Breakfast Skipping and Familial Obesity among a Sample of Egyptian Families
Authors: Hassan Nayera E. , El Shebini Salwa M. , Ahmed Nihad H.
Published: April 2016

AIM: To examine the association between dietary patterns, behaviors and the prevalence of familial obesity.SUBJECTS AND METHODS: Eighty three families, shared as volunteers comprised of 83 mothers and 155 offspring. Anthropometric measurements were reported including height and weight. Body mass index (BMI), weight/height, and weight/height Z score were calculated. Pattern of food intake was obtained by means of dietary interview consisting of a 24 hour recall, and a food frequency questionnaire.RESULTS: Data revealed that obesity was high among mothers reached 91.6% while obesity in the offspring was 24.5%. According to prevalence of obesity, families were divided to 4 groups, 8.43% of families were of normal weight, and 20.48% were obese. Food frequency consumption rate and food analysis revealed unhealthy food intake, especially in obese families. All groups reported high rate intake of sweets, pastries and beverage. Calories, carbohydrate, cholesterol and sodium were higher than the RDA in all motherâ€™s groups, and adolescent group (2) compared to low daily intake of micronutrients especially calcium and vitamin D in all groups. More than half of all mothers and offspring skipped breakfast.CONCLUSION: Results of this study suggest that familial obesity increases the risk of offspring being obese, dietary habits might be involved in the development of obesity.
Eduardo Torroja, alma del Comité Europeo del Hormigón
Authors: Levi Franco
Published: April 2016

Es un hecho evidente que, durante los últimos años de su vida, Eduardo Torroja desarrolló una intensa actividad dedicando gran importancia al progreso de los trabajos del Comité Europeo del Hormigón. Este Comité, que es, en realidad, una Asociación de investigadores y constructores, y en cuya fundación participó en 1953, responde, efectivamente, a su aspiración más profunda: alcanzar un perfecto equilibrio, en todos los terrenos de la ingeniería, entre las exigencias de la técnica y las necesidades de la práctica.
Hipódromo de la Zarzuela
Authors: Torroja Eduardo
Published: April 2016

No disponible
Frontón Recoletos
Authors: Torroja Eduardo
Published: April 2016

El juego de pelota requiere una gran superficie de juego, rectangular y limitada por un muro de frente, otro lateral y otro de fondo para el rebote de la pelota. Las localidades se sitúan, principalmente, al otro lado de la longitud de la pista de juego.
Iglesia de Pont de Suert
Authors: Torroja Eduardo
Published: April 2016

Escondido entre las altas crestas del Pirineo, el valle del Ribagorzana guarda todavía reliquias arquitectónicas del más primitivo arte prerrománico. El pueblo de Pont de Suert ha visto de pronto ampliarse el estrecho círculo de sus edificaciones con el nuevo barrio creado por la Empresa Nacional Hidroeléctrica del Ribagorzana para su numeroso personal. La Sociedad decidió levantar una iglesia que, sin faltar a la tradición, fuese, al mismo tiempo, una obra de carácter moderno a la que pudieran incorporarse las técnicas constructivas de nuestros días. Algo que, ajustándose estrictamente a la tradición y a la liturgia católica, aceptase las aportaciones y tendencias de la época actual sin herir, con innovaciones demasiado revolucionarias, las tradiciones religiosas de la región y el concepto arquitectónico de iglesia al que se sienten adheridos sus habitantes.
Presa de Canelles
Authors: Torroja Eduardo
Published: April 2016

Esta presa, de 140 metros de altura, fue estudiada experimentalmente en veinte modelos reducidos sucesivos. Los resultados obtenidos de cada ensayo servían para determinar las variaciones de forma que convenía introducir; y esta forma era nuevamente experimentada.
Hangares, Barajas – Torrejón
Authors: Torroja Eduardo
Published: April 2016

El planteamiento funcional pedía cubrir una superficie rectangular de 182,88 x 47,24 metros, dejando libre una fachada longitudinal para las puertas correderas, v no estableciendo en el interior más que un soporte situado a 10 metros, como máximo, de la línea de puertas. Las solicitaciones de la cubierta eran solamente las del peso propio, la nieve (65 kg/m2) y la acción del viento.
Acueducto de Alloz
Authors: Torroja Eduardo
Published: April 2016

La idea fundamental de este acueducto es la de suprimir la posibilidad de fisuración y de fugas, haciendo que el paramento, en contacto con el agua, esté sometido a compresión en todos los sentidos.
Viaducto del Aire
Authors: Torroja Eduardo
Published: April 2016

Estructura de hormigón armado definida por un puente en arco con tablero superior apoyado sobre esbeltos pilares, los cuales definen sus tímpanos calados.
Electric House
Authors: Collins, Melvin, Ward Asociados
Published: April 2016

Este edificio de oficinas, de traza sencilla y luminosa y de gran ligereza y esbeltez aparentes, ha sido levantado en el corazón de Londres. Por este motivo, presentaba un serio problema de adaptación a los viejos edificios de la ciudad, todos ellos de configuración muy semejantes y de tratamiento completamente distintos a los que ahora se acostumbran a emplear.
Puente de Champlain
Authors: Wolfsberger R. H.
Published: April 2016

Esta importante obra, de unos 6 km de longitud, subdividida en tres trozos, unirá la ciudad de Montreal con la margen sur del río San Lorenzo. El trozo objeto de esta descripción dispone de una estructura de hormigón, de tramos múltiples, rectos, sobre pilas, salvados con vigas de hormigón pretensado prefabricadas en talleres instalados en lugares próximos a los de las posiciones que de forma definitiva han de ocupar.
El suelo estabilizado, material de construcción
Authors: Nadal Jaime
Published: April 2016

Mediante la compactación de un suelo se pretende lograr: que su volumen permanezca prácticamente constante; que su resistencia se encuentre siempre por encima de un mínimo admisible, y que las deformaciones producidas por las cargas a que esté sometido se mantengan dentro de límites tolerables. De todos los sistemas posibles para lograr estas propiedades, la compactación se basa exclusivamente en reducir el volumen de huecos.
Dos edificios de viviendas
Authors: Brivio Peppo
Published: April 2016

Presentamos dos edificios de viviendas con fisonomía diferente, pero debidos, sin embargo, a la misma mano y a la misma mente proyectista. El arquitecto ha tratado ambas casas según las exigencias de solar y programa, organizando su estudio con inteligencia y acierto indudables.
Salas de exposición en Tokio
Authors: Murata Masachika
Published: April 2016

El conjunto de edificios levantados sobre rellenos de zonas antes ocupadas por el mar, complementado por bloques y jardines formando parque, constituye el recinto donde se han de celebrar las ferias bienales del comercio y maquinaria de origen japonés. La producción nacional y el comercio que de ella se deriva, tendrán como escaparate abierto al mundo entero en tres edificios, situados en este recinto de Tokio, Japón.
El Euromast
Authors: Editorial Equipo
Published: April 2016

En la ciudad de Rotterdam (Holanda) se ha erigido recientemente una gran torre para simbolizar la dramática reconstrucción y dinámica expansión de esta ciudad en la futura exposición floral que en ella ha de celebrarse.
Las presas de Glen Canyon y Flaming Gorge
Authors: Goodman D. L.
Published: April 2016

El Bureau of Reclamation, con sede en Denver, Colorado (EE. UU.), está actualmente construyendo dos presas, de hormigón y gran altura. Este Departamento desempeña una función similar a la que vienen desarrollando nuestras Confederaciones hidrográficas nacionales. Las dos presas son: la de Glen Canyon, de 216 m de altura, y la de Flaming Gorge, de 153, que son las más importantes en cuanto a almacenamiento y reserva se refiere.
El suelo estabilizado, material de construcción. La compactación en carreteras
Authors: Nadal Jaime
Published: April 2016

Por exigencias de espacio disponible en el anterior número de la revista hubo de fraccionarse el artículo dedicado a la compactación, habiéndose publicado únicamente la reseña de la maquinaria utilizada para densificar los suelos "in situ" y dejando para el presente número la descripción de los ensayos realizados por la R. R. L. Desgraciadamente, no existe aún una teoría general de la comparación que permita exponer el tema esquematizado, cuando de aplicaciones prácticas se trata, por lo que hemos tenido que recurrir al análisis de una verdadera casuística, para tratar de poner de relieve las correlaciones que se observan entre las diversas variables que interesan al constructor y al proyectista. Una de estas variables es el equipo de compactación, y su elección entre las diversas soluciones que ofrece la industria de maquinaria es, a veces, decisiva, tanto para la calidad de la obra como para el rendimiento económico de los trabajos. Sería nuestro deseo que las presentes notas fuesen de alguna utilidad para aquellos que, no siendo especialistas en la materia, se vean en la necesidad de abordar tan delicada cuestión.
Sistemas para compensación de carga en los rodillos neumáticos
Authors: Editorial Equipo
Published: April 2016

Los dispositivos de compensación tienen por objeto lograr un reparto uniforme de la carga entre los diversos rodillos, independientemente de las diferencias de nivel que accidental o sistemáticamente puedan éstos encontrar en su desplazamiento durante los trabajos de compactación.
Escuela en Sarasota, Florida
Authors: Rudolph Paul
Published: April 2016

La apariencia espectacular y originalísima de esta nueva escuela de adultos en Sarasota, refleja unas directrices y un programa educativo innovador en materias de construcciones escolares. Es preciso enseñar al alumno; pero también es preciso que viva en un ambiente, que se encuentre y transite recintos que le induzcan, de forma clara y terminante, al dinamismo y a la constante actividad que requiere y exige la vida de hoy.
El Palacio del Trabajo, en Turín
Authors: Luigi Nervi Pier , Nervi Antonio
Published: April 2016

Con la denominación de Palacio del Trabajo se ha construido en Turin (Italia) un magnífico edificio, rodeado de anexos e instalaciones, que se ha destinado, con fines inmediatos, a una exposición. La parte central de ésta se reserva a Italia y la circundante al extranjero y, con fines mediatos, a otras actividades de carácter indefinido.
El suelo estabilizado, material de construcción. Aplicación en edificación
Authors: Nadal Jaime
Published: April 2016

Los suelos, más o menos estabilizados, se emplean de muy antiguo para levantar edificaciones, constituyendo, con frecuencia, los muros de las mismas y, en ocasiones, también los pisos y cubiertas. En todas estas aplicaciones, el suelo, por razones de la función que cumple, se encuentra en condiciones un tanto distintas de las que se producen en las vías de comunicación.
Intellectual Disability
Authors: Gopalan Rejani Thudalikunnil
Published: April 2016

Intellectual Disability (ID, also known as mental retardation) is a condition of arrested or incomplete development of the mind. ID is especially characterized by impairment of skills manifested during the developmental period, which contribute to the overall level of intelligence, i.e. cognitive, language, motor, and social abilities. This chapter focused to give an overall view about its history, changes in terminology, classification, epidemiology, etiology, comorbidities and management. Current understanding and latest trends and issues were highlighted.
Assessment and Management of Communication Skills in Individuals with Intellectual Disability
Authors: M. Krupa , Boominathan Prakash
Published: April 2016

The relationship between communication and cognition which has been explored since mid-1900s is a highly contentious topic. Hypotheses from various researchers have experienced a gradual shift from cognitive/innate bases to social perspective of acquisition and development of speech and language skills in individuals with intellectual disability. This acquisition tends to be delayed or deviant (qualitative and /or quantitative). In the recent years, research in this area is experiencing a paradigm shift evolving from ‘incapacity' to ‘functioning' which is obvious in the clinical practice of assessment and intervention of speech and language skills in these individuals. Further, the rehabilitation process is experiencing a transition from clinician directed to child-oriented or hybrid approaches of intervention. This chapter will be a comprehensive document of recent trends in research and practice related to acquisition of language, assessment and intervention of communication difficulties for professionals working with intellectual disability.
Concerns for Individuals with Intellectual Disability in India
Authors: Behrani Priyanka , Deka Dorothy Bhandari
Published: April 2016

Intellectual disability (intellectual developmental disorder) is characterized by deficits in general mental abilities, such as reasoning, problem solving, planning, abstract thinking judgment, academic learning, and learning from experience (DSM V). This neuro developmental disorder is one of the conditions with onset in the developmental period. This condition has been classified into four categories on the basis of the individual's IQ (Intelligence quotient). The objective of the present paper is to highlight some of the areas that are related to the concerns for the people with intellectual disability. The paper focuses on the following topics: 1) Legal services, 2) Challenges faced by parents, 3) Health issues, 4) Sexual knowledge, 5) Marriage, 6) Quality of life, 7) Old age, 8) Attitude of society towards the individual with intellectual disability, 9) Implications, management and prevention for future improvement for individuals with intellectual disability.
Recent Trends and Issues in Vocational Rehabilitation of People with ID
Authors: Dehuri Bijoy Kumar , Mukund Bhavna
Published: April 2016

Employment has many advantages for people. Besides earning an income, work provides opportunities for social interaction, a means of structuring and occupying time, enjoyable activity and involvement, and a sense of personal achievement. Work is considered therapeutic and essential for both the physiological survival and psychological well-being of people in contemporary societies and hence it's importance in people with intellectual disability. The rights of people with disabilities have been given new attention with the entry into force of the United Nations Convention on the Rights of Persons with Disabilities (CRPD) in May 2008. The various policies, issues and trends in vocational rehabilitation of people with intellectual disabilities in existence in different countries need to be examined along with different models in existence to develop appropriate executable models whereby such rehabilitation services could be made available early in life to such individuals and after training they could be provided with supported employment or integrated employment as the case may be.
Crime and Legal Issues among Intellectually Disabled Individuals
Authors: Giannouli Vaitsa
Published: April 2016

Intellectual Disability (ID) can be caused by a variety of factors, which may lead to a variety of signs and symptoms. Individuals with ID are living in societies where during the past decade there is a steady increase in the amount of research focused on civil law, criminal law and mental health. In this chapter, there will be a theoretical presentation of the research on ID regarding criminal law and the different forms of aggressive behavior such as sexual violence, homicide, theft, arson and alcohol-drug abuse. There will be information on research regarding civil law and the most common problems for individuals with ID, such as financial capacity and capacity for medical consent. Finally, there will be a section for the most important issues regarding the trial and conviction for individuals with ID and a presentation of a recent research on attitudes toward ID and legal issues. The above will be examined through the prism of current neuropsychological data, while cross-cultural restrictions will be discussed.
Intellectual Disability in the Family Context
Authors: Bhargava Swarnima , Umrigar Daanesh Marazban
Published: April 2016

Literature with regard to parents with intellectual disability is scant. On one hand, parents with intellectual disability engage in the valued social role of raising children; on the other, their parenting attracts (typically negative) attention based on an expectation of their limited capacities to parent. Available research primarily addresses the question of whether or not individuals with intellectual disability can be adequate parents or reports on methods for improving their parenting skills. There has been relatively negligible work in the Indian context with regard to parents with intellectual disability. This paper attempts to review literature on the current data available about parents and parenting with intellectual disability in the Indian context concentrating on directions for future research.
Sexuality, Parenting Skills, and Related Issues in Persons with Intellectual Disability
Authors: Gopalan Rejani Thudalikunnil , Agustus Prathibha
Published: April 2016

Sexuality begins from the moment of birth and has an active role in the development, evolution, emotional balance and affective stability of the individual. It has a significant role in interpersonal and couple's relationships. As intellectually disabled person approach puberty their control of behaviour and expression of sexuality may manifest in unacceptable ways. Persons with intellectual disabilities are at increased risk for physical, sexual and emotional abuse. The chapter focused on the issues related to sexual feelings and its expression among intellectually disabled people and the risk for sexual abuse. The necessity of sex education and components of sex education for different group also explained in detail. The chapter also addressed the parenting skills and problems related with parenthood among individuals with intellectual disability.
Transforming Mathematics Teacher Knowledge in the Digital Age through Iterative Design of Course-Based Projects
Authors: Suh Jennifer M. , Sprague Debra R. , Baker Courtney K.
Published: April 2016

This research in this chapter highlights a self-study of three university faculty members who were aimed at improving the design of an Elementary Mathematics Technology Integration Course (EMTIC). The self-study used the faculty unique research lenses and expertise in mathematics education and educational technology to redesign the performance based assignments to better prepare the teacher candidates to integrate technology into their mathematics teaching. This collaboration required faculty members to: 1) Reflect on their beliefs about technology integration; 2) Evaluate their current teaching practices; and 3) Adapt the design of their course assignments to better meet the skills required of teachers and students in the 21st century.