bluuebunny/crossref_metadata_2025_split huggingface dataset:
Lumboperitoneal shunt insertion without fluoroscopy guidance: Accuracy of placement in a series of 107 procedures
Authors: Al-Rashed Sabah , Kareem Haider , Kalra Neeraj , D’Antona Linda , Obeidat Mouness , Patel Bhavesh , Toma Ahmed 
Published: April 2017

Background: Lumboperitoneal (LP) shunts were the mainstay of cerebrospinal fluid diversion therapy for idiopathic intracranial hypertension (IIH). The traditionally cited advantage of LP shunts over ventriculoperitoneal (VP) shunts is the ease of insertion in IIH. This needs to be placed at the level of L3/4 to be below the level of the spinal cord. The objective of this study was to analyse the position of LP shunts inserted without portable fluoroscopy guidance. Methods: A retrospective analysis of radiology was performed for patients who underwent lumboperitoneal shunts between 2006 and 2016 at the National Hospital for Neurology and Neurosurgery. Patients who had insertion of a LP shunt without fluoroscopy guidance were selected. Patients without post-procedural imaging were excluded. A retrospective analysis of the clinical notes was also performed. Results: Between 2006 and 2016, 163 lumboperitoneal shunts were inserted in 105 patients. A total of 56 cases were excluded due to lack of post-procedural imaging; therefore, 107 post-procedural x-rays were reviewed. In 17 (15.8%) cases the proximal end of the LP shunt was placed at L1/L2 level or above. Conclusions: Insertion of LP shunts without portable fluoroscopy guidance gives a 15.8% risk of incorrect positioning of the proximal end of the catheter. We suggest that x-ray is recommended to avoid incorrect level placement. Further investigation could be carried out with a control group with fluoroscopy against patients without.
Technical Note: The MAPt/Pht/∞ Queueing System and Multiclass [MAPt/Pht/∞]K Queueing Network
Authors: Gerhardt Ira , Nelson Barry L. , Taaffe Michael R. 
Published: April 2017

In this paper we demonstrate how a key adjustment to known numerically exact methods for evaluating time-dependent moments of the number of entities in the Pht/Pht/∞ queueing system and [Pht/Pht/∞]K queueing network may be implemented to capture the effect of autocorrelation that may be present in arrivals to the more general MAPt/Pht/∞ queueing system and multiclass [MAPt/Pht/∞]K queueing network. The MAPt is more general than the Pht arrival process in that it allows for stationary nonrenewal point processes, as well as the time-dependent generalization of nonrenewal point processes. Modeling real-world systems with bursty arrival processes such as those in telecommunications and transportation, for example, necessitate the use of nonrenewal processes. Finally, we show that the covariance of the number of entities at different nodes and times may be described by a single closed differential equation. The online supplement is available at https://doi.org/10.1287/ijoc.2016.0736 .
Surgical treatment of acetabular fractures in the elderly: a systematic review of the results
Authors: Capone Antomio , Peri Marcella , Mastio Michele 
Published: April 2017

We performed a systematic review of the literature involving a number of databases to identify studies that included outcomes of surgical treatment of acetabular fractures in patients aged > 55 years. An initial search identified 1564 studies. After exclusion by two independent reviewers, 15 studies met the inclusion criteria. All studies were case series and the mean Coleman Methodology score for methodological quality assessment was 43.7 (standard deviation 12.3). There were 354 patients with acetabular fractures. Pooled analysis revealed a mean age of 71.6 years (55 to 96) and a mean follow-up of 43 months (20 to 188). Complex fractures were reported in 70.1% of patients. Seven studies presented the results of open reduction and internal fixation (ORIF); in eight other studies a total hip arthroplasty (THA), alone or combined with different internal fixation techniques, was the chosen treatment. In the ORIF sub-group, conversion to THA was performed at a mean of 25.5 months with anatomical reduction in 11.6% and imperfect and poor reduction in 22.3%. In the THA sub-group, an acetabular ring or cage with a cemented acetabular component was used in four studies (52 patients) and a cementless acetabular component was implanted in five studies (78 patients). Six patients (4.9%) underwent revision at a mean of 39 months after the index procedure. The analysis of intra-operative and post-operative parameters showed a statistical difference between the two sub-groups with regards to the mean operating time (236 mins ORIF vs 178 mins THA), the mean blood loss (707 mL ORIF vs 974 mL THA) and the mean mortality rate at one year (22.6% ORIF vs 8.8% THA). Based on the current data available, acute THA (alone or in combination with internal fixation) may have a role in the treatment of older patients with complex acetabular fractures. Despite the wide heterogenecity of fracture types and patient co-morbidities, THA procedures were associated with lower rates of mortality and further surgery when compared with the ORIF procedures. Cite this article: EFORT Open Rev 2017;2:97-103. DOI: 10.1302/2058-5241.2.160036
Fighting food waste towards a new social food chain: The Egg of Columbus workshop
Authors: Campagnaro Cristian , Ceraolo Sara 
Published: April 2017

Abstract
From 29 February to 4 March 2016, seventeen students of Design and one student of Educational Studies designed and tested recipes for fruit and vegetables with the aim of recycling unsold food. The goal of the experimentation was to verify the strategies aimed at improving homeless people’s access to a certain and healthy daily meal. The workshop was named ‘The Egg of Columbus’ and it was led by two designers and one chef. It took place in a non-professional kitchen, inside a municipal building, which is a location for social inclusion and interdisciplinary education projects. Some homeless adults with prior kitchen experiences actively participated in the workshop, offering their knowledge and collaborating with the students at every stage of the project. The group successfully produced and tested nineteen food transformation strategies. These were recipes that promoted transformation of the surplus produce, preserving its nutritional values and making it available to the deferred consumption. The food design experience offered new perspectives about the food chain for night shelters focusing on the issues of right to food, sustainability and circular economy.
Food design and food studies: Discussing creative and critical thinking in food system education and research
Authors: Massari Sonia 
Published: April 2017

Abstract
In the past 20 years, two new disciplines have been created and have evolved, first as two separate subjects, and now more and more interconnected: food studies and food design studies. The motive behind the recent success and popularity of education in the agri-food sector lies in the fact that everywhere in the world, the boundaries around the world of food and nutrition have widened. More attention is dedicated to communication, proximity, connections, social and cultural values, and the construction of new food systems. There is a growing need to find new ways to defeat food paradoxes (malnutrition, non-sustainable production systems and the battle against food waste, to name a few). In the past 10 years, the design method has been consolidating into the field of food. Participatory design and co-creation in food experience design became popular along with the discipline of food design. However, the interest in emerging and innovative forms of teaching models in academic and non-academic scenarios in agri-food education is increasing and becoming a challenging issue in food studies pedagogy. The learning objectives of food system education are continuously redefined with the aim of providing food experts with the necessary skills to change food systems and support more sustainable and healthier food value chains. In this article four case studies are presented in which a design approach was applied into different food system education programmes. The author of this article has personally been involved in each of the four scenarios, as a teacher and as a designer. Complex questions concerning the intersection of food system educational contexts, collaboration skills, critical knowledge production and creative approaches are considered in this article. The author presents the dimensions of critical/creative thinking in the scenarios and concludes with a discussion of the challenges and resources for food studies and design educators. The lessons learned in this article provide a starting point for discussing creativity in food system learning and education. On the basis of the analysis carried out in this article, design appears to be an interesting research method to apply to food system education, capable of creating innovative interactions between disciplines and new critical and creative mindsets for food experts. Increasing creativity and critical thinking as learning objectives in food system education will generate more sustainable food cultures and communities.
Dispositivo didáctico para la enseñanza de la estadística en la carrera de Medicina Veterinaria de la UNVM
Authors: Cabrera Gabriela , Asinari Marianela 
Published: April 2017

Dispositivo didáctico para la enseñanza de la estadística en la carrera de Medicina Veterinaria de la UNVM Gabriela Cabrera y Marianela Asinari ResumenEn el presente documento se propone la implementación de un dispositivo didáctico que integra aportes del aprendizaje situado, la clase reflexiva, la teoría antropológica de lo didáctico, el aprendizaje ubicuo, las simulaciones informáticas, uso de las TIC y la elaboración y lectura de hipertextos. Esta configuración se diseña con el objetivo de propiciar en los estudiantes la construcción de un pensamiento estadístico, la conciencia del valor de la estadística como tecnología de la investigación y herramienta para la toma de decisiones bajo incertidumbre y la reflexión sobre limitaciones y potencialidades en sus aplicaciones al ámbito de las ciencias veterinarias. Se aplicó un instrumento de recolección de datos con el objetivo de conocer la percepción de los estudiantes con relación al impacto de dicho dispositivo didáctico en sus aprendizajes. Se obtuvo para todos los ítems considerados el 80 % o más de respuestas favorables. Estos resultados son alentadores y sientan las bases para continuar con el proceso de retroalimentación y mejora del dispositivo didáctico propuesto.
The Role of Traditional Communities n the Management of Diversity of Sheep Populations in Caras - Severin County
Authors: Sandu Mariana , Mantea Stefan 
Published: April 2017

Abstract
Modernization of agriculture has led to the erosion of biodiversity of agroecosystems with implications for productivity in the sector. Degradation of genetic resources of plants, animals, insects and soil organisms causing economic losses threatening the food security of the population.
This study is based on biodiversity in sheep populations in Caras - Severin and brings attention to traditional practices in the management of animal genetic resources. In the agroecosystem, maintaining the biodiversity is a guarantee for future challenges (growth and diversification of consumer demand, climate change, possible calamities) provided that at the consumer level there is an increased preference to traditional and organic products.
From this point of view, it is remarkable the effort of private breeders in Caras - Severin to maintain the rustic varieties of sheep, but we think it requires a more resolute stand of the government and academic organisations for identification, preservation and support of such genetic resources valuable for all species.
In Caras-Severin County, diversity of sheep populations is maintained in household or pastoral system in small and medium farms, the animal selection being based on the interest and preferences.
Observations Regarding the Growth and Exploitation of “Turcana” Breed Sheep on Small and Medium Farms
Authors: Moise Lavinia 
Published: April 2017

Abstract
The exploitation directions in sheep race is determined by the national economic demanding, and the achievement possibilities by the productive potential of the races and also by the system and growth technology, improvement and exploitation of the races. The necessity of combining knowledge which contains a fundamental scientific profile with the applicative knowledge led to an approach of the complex applicative knowledge led to an approach of the complex aspects of the development and modernization of growth and exploitation technologies in import sheep race. Ţurcana continues to be the race that has the highest proportion of about 40% of the total. Milk production, birth weight of lambs, wool production and meat production were analized. Morpho characteristics of the breed Turcan highlights skills towards wool, milk, meat, and leather, which may improve the ability of the existence of a significant variability especially regarding the quantity and quality of milk and wool.
Copernicus Program of the European Union for Environmental Monitoring and Civil Security
Authors: Loghin Vasile 
Published: April 2017

Abstract
Copernicus is an operational program of the European Union for environmental monitoring and civil security. It provides services for collecting, processing and distributing data from Earth observation satellites and network measurements (records) onsite. Copernicus services covers six thematic areas: atmosphere, climate, oceans and seas, the continental emergencies and civil security.
Information can be accessed free of charge on specific websites (www.copernicus.eu) by public institutions / national and international organizations, the scientific community, to be used in developing appropriate policies on the environment and civil security.
Agro-Meteorological Drought in Boian Plain (Romania). Case Study: Years 2008–2013
Authors: Murărescu Ovidiu , Murătoreanu George , Nouaceur Zeineddine , Frînculeasa Mădălina 
Published: April 2017

Abstract
Boian Plain is a subunit of the Romanian Plain affected, at least in the last 20 years, by periods of dryness and agro-meteorological drought with non-uniformity fall precipitation and warm air masses invasions from North Africa. For 2008-2013 timeframe, such phenomena with agro-climatic risk were recorded each year. The reduction of water resources in the first 20 cm of the soil affected crops, in particular those of cereal crops specific for this region. This thing had negative repercussions on the quantity and quality of agricultural production.
Conservation of Fruit Tree Genetic Resources and Their Use in the Breeding Process
Authors: Botu Mihai , Botu Ion , Achim Gheorghe , Preda Silvia , Scutelnicu Anca , Giura Simona 
Published: April 2017

Abstract
Conservation of fruit tree biodiversity is important for the mankind according to the Convention on Biological Diversity. In Romania, due to favorable environmental conditions, numerous genetic resources of plum, apple, walnut, hazelnut, sweet chestnut and other
fruit crops are present. Identification, evaluation and conservation of fruit genetic resources activities were launched in 1970’ in order to limit the loss of the biodiversity due to erosion and genetic vulnerability. Fruit Growing Research & Extension Station (SCDP) of Valcea, which is belonging now to the University of Craiova, was assigned to deal with conservation of genetic resources for the Prunus, Juglans, Corylus and Castanea genera. As result, national hazelnut collection, the sweet chestnut collection and a part of the plum and walnut national collections are located here. Genetic resources of Malus, Pyrus, Sambucus, Carya and Salix are hold in the active collections too. The ex situ collections include 1160 accessions, out of those 48 species, 533 cultivars and 565 other types like hybrids, biotypes, mutants, etc. Autochthonous or ‘original’ accessions include 173 local cultivars and 565 other genotypes. Breeding activity based on valuable germplasm conducted to releasing of a total number of 31 cultivars and 8 rootstocks registered in the Romanian Official Catalogue for Varieties, 15 varieties have been patented in Romania and for one by CPVO. Identification, in situ evaluation, collection, ex situ evaluation, propagation and regeneration activities regarding fruit tree genetic resources have to be continued in order to conserve the local fruit tree biodiversity and to value it through breeding and use of the new varieties in the orchards.
Focus group interaction in evaluation research
Authors: Jung Hanbyul 
Published: April 2017

AbstractAs multiparty activities focus groups afford participants opportunities to interact with each other rather than only with the moderator. The methodological literature recommends focus groups for data generation precisely for these structural affordances, but few studies examine how the interaction in ongoing focus groups evolves. Consequently it remains largely obscure how focus groups produce disciplinary knowledge. Addressing this gap from the perspective of conversation analysis, the study examines focus group interaction as the participants’ joint accomplishment, with particular attention to the interactional practices that exhibit the participants’ orientation to the institutional activity and its agenda. The focus groups were conducted as part of a program evaluation study with Korean teachers of English who participated in a study-abroad teacher development program in the U.S. The analysis reveals how the participants contingently initiate activity and topic shifts in keeping with the institutional purpose and invoke their collective identity as an epistemic community as they jointly construct responses to the moderator’s questions. The conversation-analytic lens reveals how the focus groups generate profound, nuanced, and grounded knowledge about the program under evaluation from the perspective of the key stakeholders and by implication about the topical concerns for which the focus groups were conducted in the first place.
Block Power Method for SVD Decomposition
Authors: Bentbib A. H. , Kanber A. 
Published: April 2017

Abstract
We present in this paper a new method to determine the k largest singular values and their corresponding singular vectors for real rectangular matrices A ∈ Rn×m. Our approach is based on using a block version of the Power Method to compute an k-block SV D decomposition: Ak = Uk∑kVk
T , where ∑k is a diagonal matrix with the k largest non-negative, monotonically decreasing diagonal σ1≥ σ2 ⋯ ≥ σk. Uk and Vk are orthogonal matrices whose columns are the left and right singular vectors of the k largest singular values. This approach is more efficient as there is no need of calculation of all singular values. The QR method is also presented to obtain the SV D decomposition.
A Classifier For Ideal Unimodular Singularities
Authors: Binyamin Muhammad Ahsan , Khan Junaid Alam , Mahmood Hasan 
Published: April 2017

Abstract
In this article we characterize the ideal unimodular singularities in terms of their invariants. On the basis of this characterization we give an implementation of a classifier for ideal unimodular singularities in the computer algebra system SINGULAR.
A new class of generalized contraction using P-functions in ordered metric spaces
Authors: Amor Sana Hadj , Karapınar Erdal , Kumam Poom 
Published: April 2017

Abstract
In this paper, we introduced and studied a new class of mappings in ordered metric spaces that is inspired from the concept of a P-function introduced in Chaipunya et. al. [10]. With our new class, we furnish fixed point theorems for continuous, noncontinuous, monotonic, and nonmonotonic mappings in various kinds of the ordering structures.
On Chasles' Property of the Helicoid in Tri-Twisted Real Ambient Space
Authors: Ho Peter T. , Odom Lucy H. , Suceavă Bogdan D. 
Published: April 2017

Abstract
An elementary property of the helicoid is that at every point of the surface the following condition holds: cot θ = C · d; where d is the distance between an arbitrary point to the helicoid axis, and θ is the angle between the normal and the helicoid’s axis. This rigidity property was discovered by M. Chasles in the first half of the XIXth century. Starting from this property, we give a characterization of the so-called tri-twisted metrics on the real three dimensional space with the property that a given helicoid satisfies the classical invariance condition. Similar studies can be pursued in other geometric contexts. Our most general result presents a property of surfaces of rotation observing an invariance property suggested by the analogy with Chasles’s property.
Projective parameterized linear codes
Authors: González Sarabia Manuel , Rentería Márquez Carlos , Sarmiento Rosales Eliseo 
Published: April 2017

Abstract
In this paper we estimate the main parameters of some evaluation codes which are known as projective parameterized codes. We find the length of these codes and we give a formula for the dimension in terms of the Hilbert function associated to two ideals, one of them being the vanishing ideal of the projective torus. Also we find an upper bound for the minimum distance and, in some cases, we give some lower bounds for the regularity index and the minimum distance. These lower bounds work in several cases, particularly for any projective parameterized code associated to the incidence matrix of uniform clutters and then they work in the case of graphs.
Spectral characterization and Schrödinger operator of space-like submanifolds
Authors: Shu Shichang , Zhu Tianmin 
Published: April 2017

Abstract
In this paper, we would like to study space-like submanifolds in a de Sitter spaces Sp
n+p(1). We define and discuss three Schrödinger operators LH, LR, LR/H and obtain some spectral characterizations of totally umbilical space-like submanifolds in terms of the first eigenvalue of the Schrödinger operators LH, LR and LR/H respectively.
Water Supply in the Republic of Serbia – State and Perspectives
Authors: Langovic Marko , Dedjanski Vojislav 
Published: April 2017

Abstract
Water supply has pronounced priority, over other forms of water use. The term water supply includes the ensure of high quality water in general terms, for households, public needs and economic activities. The Republic of Serbia disposes with considerable underground and surface water resources, which are used for supplying, but it is required their rational utilization. The aim of this study is to show the current state of water supply on the territory of Serbia based on the analysis of the different indicators. One of the goal is to scan prevalent conditions and problems related to it and to propose optimal solutions. The survey includes an explanation of the long - term needs of the Republic of Serbia for fresh water (as well as share of different sources in the total water supply) and estimation of the possibility of satisfying that needs from available resources. On the base of that, there are adopted conclusions about basic directions of further development in the field of water management and water supply in Serbia.