bluuebunny/crossref_metadata_2025 huggingface dataset:
Features of the Profile Correction of Formers for Tooling the End Surfaces of Pipes
Authors: Blinov I A , Ovsyannikov A V , Keldyshev A A
Published: October 2018

Рассмотрен вопрос об особенностях проектирования инструмента для подрезки торцевых поверхностей труб. Для крупносерийного и массового производства целесообразно вместо последовательной либо многоинструментальной обработки применять обработку фасонными резцами. Токарные фасонные резцы применяют в качестве основного вида режущего инструмента для обработки фасонных поверхностей деталей в крупносерийном и массовом производстве при частичной или полной автоматизации процессов механической обработки. Они обеспечивают высокую производительность, точную форму и размеры однотипных деталей в больших партиях, что облегчает взаимозаменяемость деталей и обеспечивает бесперебойный процесс сборки изделий. Однако имеются некоторые трудности при проектировании фасонных резцов, заключающиеся в определении геометрических параметров режущей кромки. И если для радиальных и тангенциальных резцов этот вопрос подробно описан в технической литературе, то для осевого инструмента наблюдается дефицит информации. В связи с этим была разработана методика расчета профиля режущей кромки осевых фасонных резцов для обработки торцевых поверхностей труб. Создана математическая модель, с помощью которой, основываясь на исходных данных (наружный и внутренний диаметр трубы, параметры фасок или скруглений, углов резания), можно построить контур режущей части инструмента. Предложенная методика коррекции профиля осевого фасонного резца использована для составления программы расчета профилей резцов для обработки торцевых поверхностей трубного проката, изготавливаемого на АО «Чепецкий механический завод» (г. Глазов).
Estimating the Risk Factors of the State Defense Orders Implementation at the Concern Structure
Authors: Movtyan B A , Danilaev D P
Published: October 2018

Для полного и своевременного выполнения гособоронзаказа предприятиями ОПК верхний уровень менеджмента промышленного концерна осуществляет контроль и управление производственной деятельностью, в том числе перераспределение различных ресурсов, интегрируемых в структуре концерна. Контроля экономической эффективности выполнения контрактов оказывается недостаточно. Особенность контроля производственной и научно-технической эффективности выполнения гособоронзаказа на уровне управляющей компании концерна заключается в различии проектов, множестве показателей, сложности оценки рисков выполнения и пр. Необходимо введение промежуточного контроля производственной и научно-технической эффективности на этапах выполнения контрактов. На корпоративном уровне и уровне предприятий этот контроль осуществляют соответствующие службы в рамках предоставленных им полномочий. Возникает достаточно большой объем собранной информации по показателям, которые, с одной стороны, дополняют друг друга, с другой - требуют согласования между собой. Эта информация является избыточной и сложной для анализа на верхнем уровне менеджмента с целью принятия управляющих решений. Оценки рисков основаны на многокритериальном анализе и носят нечеткий характер из-за нестабильности и изменчивости внешней среды и условий организации производственной деятельности. Для снижения неопределенности, повышения достоверности информации, а также ее представления в обобщенном виде предложен метод экспертных оценок факторов риска. В работе предложены группы факторов риска, по которым осуществляется экспертная оценка. При этом отмечено, что в корпорации необходимо согласовывать и регламентировать перечень показателей, предоставляемых для анализа, формы отчетности, критерии, методику расчета и периодичность предоставления информации. Для оценки достоверности информации и определения обобщенных факторов риска целесообразно использовать аппарат нечеткой логики.
Development of Methods for Assessment of Integration Performance for Information and Analytic Instruments of Infrastructure Support for Small Enterprises in the Business-Incubation Process
Authors: Matveeva I V , Khomenko E B , Smirnov S V
Published: October 2018

Одним из основных институтов инфраструктурной поддержки малого предпринимательства является бизнес-инкубатор. В его задачи входит не только оказание имущественной поддержки в виде сдачи в аренду помещений, оборудования и т. д., но также содействие развитию малых предприятий путем предоставления информационно-аналитических услуг. В качестве основных информационно-аналитических инструментов инфраструктурной поддержки малых предприятий авторы выделяют консалтинг, обучение, проектную экспертизу и событийный мониторинг. Для успешной реализации информационно-аналитической поддержки малого предпринимательства необходим постоянный мониторинг результатов интеграции информационно-аналитических инструментов инфраструктурной поддержки малых предприятий в процесс бизнес-инкубирования. В настоящее время не существует единой методики, позволяющей оценить результативность информационно-аналитической поддержки малого предпринимательства. Авторами предложена универсальная методика оценки результативности интеграции информационно-аналитических инструментов инфраструктурной поддержки малых предприятий в процесс бизнес-инкубирования, основанная на методах анализа иерархий и экспертных оценок. Предлагаемая методика включает показатели результативности каждого из пяти выделенных уровней оценки результативности интеграции информационно-аналитических инструментов в процесс бизнес-инкубирования. Показатели вышестоящего уровня рассчитываются на основе показателей нижестоящего уровня, каждому из которых в результате применения метода анализа иерархий и метода экспертных оценок присваивается свой нормализованный вектор приоритетов - коэффициент важности данного показателя. Для каждого из показателей авторами были установлены нормальные значения и выведены формулы для расчета. Практическое использование предложенной методики будет способствовать решению следующих проблем: во-первых, сопоставления действующих бизнес-инкубаторов; во-вторых, выбора малыми предприятиями лучшего на их взгляд бизнес-инкубатора в качестве института поддержки; в-третьих, установления плановых показателей развития информационно-аналитической поддержки.
Choice of Optimum Operational Regime for Total Stations upon Making Geodetic Surveys under Heavy Aerosol Atmosphere Pollution
Authors: Verdiyev S. B.
Published: October 2018

The possibility to use multi-wavelength regime of total stations operation for making surveys under heavy aerosol atmosphere pollution is researched. The actuality of single- and multi-wavelength regimes rational choice under heavy aerosol atmosphere pollution is grounded. The task on researching the matter of operational regime choice for total stations is formulated. The method for solution of the formulated task is suggested. The theoretical modelling and experimental researches are held to formulate the criterion for choice of single- or multi-wavelength regimes. The practical recommendations for such a choice are formulated. The practical recommendations are formulated for choice of measurements regime. According to formulated recommendations if a single-wavelength total station operates in the field of longer wavelengths (R) of visible band and a three-wavelengths one operates with bias to shorter (B, G, R) wavelengths, the single-wavelength total station should be preferred. But if the single-wavelength total station operates in the field of shorter wavelengths (B) and the three-wavelengths one operates with bias to longer wavelengths (B, G, R) then the multi-wavelengths total station should be preferred. The recommendation described in this article are relevant for both the regimes of measurements with- and without reflector and can be useful for users of total stations.
Checking Decimeter Intervals of the Trimble Levelling Rods’ Bar-Code Scale
Authors: Vinogradov A.V. , Voytenko A.V. , Petrov S.N.
Published: October 2018

Russian regulation documents permit using telescopic rods made of duralumin for III and IV class leveling. The authors provided information from the leveling instruction on the need to perform metrological testing the rods before work and during the measurements. The article focuses on two most important checkouts
Assessment of Hazardous Exogenous Processes of the Mondy Depression Based on Morphometric and Landscape Analysis
Authors: Bezgodova O.V. , Istomina E.A. , Ovchinnikova E.V.
Published: October 2018

The authors consider the application of geoinformation mapping in the analysis of hazardous processes using space images, digital terrain models, as well as comparative analysis of the landscape map and the map of hazardous exogenous processes. As a result, a large-scale map of hazardous processes within the Mondy depression was created. At the first stage, space images, physical and geographical conditions were analyzed, as well as the morphometric indicators of the territory. On the basis of that analysis classes of hazardous exogenous processes that affected the landscapes of the depression were identified. Further the classes of hazardous exogenous processes were compared with landscape facies, within the contours of which hazardous processes of different intensity are common. Calculation of hazardous exogenous processes using the data of morphometric indicators was made, the information on the long-term change in the main elements of the climate of the study area obtained. The method of spatial analysis in geographic information systems on a vector basis marked the main hazardous exogenous processes that have developed in the territory of the Mondy depression. The gravitational-slope class, represented by collapses and screes, is most widespread in the investigated area. Fluvial class of the dangerous exogenous processes is mostly indicated by mudflows in the valleys of small and temporary watercourses. Cryogenic class of these processes is least developed.
The role of regional anesthesia in the postoperative analgesia in pediatric patients
Authors: Simic Dusica , Simic Irena , Stevic Marija , Jovicic Nevena , Mitrovic Maja , Budic Ivana , Milenovic Miodrag , Marjanovic Vesna , Milicic Biljana
Published: October 2018

Introduction/Objective. Pain is a disturbing experience associated with existing or potential tissue damage, with a sensory, emotional, cognitive, and social component. The aim of this study was to show the efficiency of regional anesthetic techniques in postoperative pain in children. Methods. The retrospective cohort study was conducted on a group of 564 pediatric patients during the period from 2013 to 2016. Types of regional anesthesia were classified into the following six groups: caudal, epidural, spinal block, upper limb blocks, lower limb blocks, and truncal nerve block. From statistical methods, we used descriptive statistical methods of absolute and relative numbers, measurements of variability, central tendencies for numerical features, and methods of inferential statistics. We used the ?2 test for the attributive features of observations. Results. In relation to the postoperative time when an analgesic was required, a statistically significant difference was observed in the age of children (p = 0.000), disease diagnosis (p = 0.000), type of block (p = 0.000), type of local anesthetic (p = 0.000), and type of anesthesia or sedation preoperatively (p = 0.005). Conclusion. Postoperative analgesia was most needed by older children and children who were awake during surgery. Children with injuries and tumors need postoperative analgesia the earliest. The longest postoperative analgesia was recorded in patients who received caudal block. The longest postoperative analgesia can be seen in patients who received levobupivacaine, bupivacaine or levobupivacaine combined with lidocaine to perform the block.
Performance of a calculator for diagnosing the cause of liver damage
Authors: Petrovic-Subic Narcisa , Kojic Miroslav , Jankovic Slobodan , Stefanovic Srdjan
Published: October 2018

Introduction/Objective. Making a calculator that would recognize patterns of abnormal liver function tests and link them to the most probable etiology could help clinicians in their initial orientation towards a definitive diagnosis in patients with liver damage. The aim of our study was to design, construct, and validate a calculator that based on a pattern of abnormalities in liver function tests of a patient with liver damage would propose the most probable etiology. Methods. Patterns of abnormal liver function tests for certain etiology of liver damage were extracted from distributions of actual values taken from reports in medical literature about patients whose etiology of liver damage was proven by reliable diagnostic tests. After setting up the calculator with the patterns extracted, its diagnostic value was checked under real-life conditions, on a sample of patients with liver damage whose etiology was established by the gold standard of diagnostics (biopsy or else). The calculator validation study was carried out at the Military Medical Academy in Belgrade during a two-year period (2015?2016). Results. For all tested diagnoses, the calculator demonstrated a highly significant difference between the area under the receiver-operator curves? values and the value of 0.5 (p < 0.001), and high level of sensitivity (more than 90%, except for the model for chronic hepatitis) as well as relatively high specificity (more than 75%) were noted, indicating good ability of the calculator to detect etiology of liver damage. Conclusion. New calculators showed satisfactory sensitivity and specificity for revealing major liver damage etiologies.
Electroclinical characteristics of MRI negative focal epilepsy: A video-EEG study
Authors: Ristic Aleksandar , Arsic Aleksandra , Trajkovic Goran , Berisavac Ivana , Kisic Bojana
Published: October 2018

Background/Aim. Epileptogenic lesions carry intrinsic epileptogenicity or epileptogenic potential in their close vicinity. One third of patients with focal epilepsy have no epileptogenic lesions magnetic resonance imaging [MRI(-)]. The aim of this study was to determine the epileptogenic zone investigating electrical and clinical properties of MRI- patients. Methods. In 180 patients with focal epilepsy we analyzed 1,712 seizures for interictal and ictal electroencephalography (EEG) and seizure semiology. If multiple seizures occurred we took the best seen on video as an example, with secondary generalized tonic-clonic seizures (GTCS) if it occurred. Brain MRI was focused to investigate the zone of ictal EEG onset. Electroclinical properties of the MRIpatients were compared to lesion positive patients [MRI(+)]. Results. A single epileptogenic lesion was identified in 68.89% [hippocampal sclerosis (HS) in 58, focal cortical dysplasia (FCD) in 28 and other pathologies in 38 patients]. MRI(-) patients had significantly less interictal epileptiform abnormalities, and presented more often (p < 0.001) with secondary GTCS as the only seizure. Eye opening, hypermotor seizure, bilateral asymmetric clonic seizure, vocalization, and contralateral body turning occurred more frequently in the MRI- group compared to the MRI+ one. MRI- patients share some semiological features with FCD as opposed to HS patients. Conclusion. MRIepilepsy patients frequently present with electroclinical features seen in frontal lobe epilepsy or in epilepsy associated with FCD.
The use of mobile-aided learning in education of local anesthesia for the inferior alveolar nerve block
Authors: Mladenovic Rasa , Pereira Leonardo , Djordjevic Filip , Vlahovic Zoran , Mladenovic Kristina , Cvetkovic Andrijana , Martinovic Brankica , Mladenovic Jovan , Popovski Julie
Published: October 2018

Background/Aim. Dental education has developed over the years, and various technologies have been included. Considering the fact that mobile devices are an imperative of modern time, the aim of our research was to evaluate effectiveness of Mobile-Aided Learning on practical administering the inferior alveolar nerve block (IANB). Methods. This prospective study involved 34 students who were randomly divided into two groups: G1 (control) group with 16 students and G2 (study) group with 18 students. Students of both groups previously successfully completed theoretical and practical training provided by the curriculum. For the purpose of additional education, students of the G2 group used a mobile application for 3D simulation of local anesthesia (Mobile-Aided Learning) outside the dental office for a period of one semester. After that, all students completed a post-clinical questionnaire. Results. The average time for performing anesthesia by participants in the G1 group was 70.54 ? 20.16 seconds, while in the G2 group it was 57.13 ? 17.45 seconds, which was significantly shorter (p ? 0.05). A successful anesthesia application was higher in the G2 group (83.3%) compared to the G1 group (75%). The results of the post-clinical test questionnaire also indicated difference in the mean values of the responses to all questions, which was in favor of the G2 group participants. Conclusion. Application of Mobile-Aided Learning showed a significantly higher efficiency in student education for practical implementation of the IANB.
Evaluation of dental health among adolescents with mental disorders
Authors: Djordjevic Vladan , Jovanovic Mila , Colic Sanja , Stasevic Milena , Asotic Amina , Cakic Sasa , Stasevic-Karlicic Ivana , Todorovic Ljubomir , Todorovic Ljubomir
Published: October 2018

Background/Aim. According to the World Health Organization (WHO), there is an increasing prevalence of mental disorders among children and adolescents worldwide. Previous studies have shown that people with mental disorders, regardless age, have an increased prevalence of dental caries due to several reasons. The aim of this study was to determine prevalence of dental caries in adolescents with mental disorders and to consider possible risk factors that might contribute to their current dental health status. Methods. The study was conducted as an observational cross-sectional study. The study group comprised 70 randomly selected hospitalized adolescents with mental disorders. The control group comprised 70 randomly chosen mentally healthy adolescents. They were matched to the study group by gender and age. All the participants were subjected to targeted dental examination according to criteria recommended by the WHO. Collection of data related to mental disorders of the study group was obtained from the patient?s medical records. All collected data were organized and analyzed by descriptive statistical parameters and regression models. Results. Majority of the study group patients were diagnosed with schizophrenia, schizotypal and delusional disorders (F20-F29), as well as behavioral and emotional disorders usually occurring in childhood and adolescence (F90-F98). Almost 90% of them were treated with antipsychotics of the second generation, as monotherapy or in combination with first-generation antipsychotics. Adolescents with mental disorders had significantly more carious and extracted teeth and three times less filled teeth than mentally healthy adolescents in the control group. The mean value of the decay-missing-filled teeth (DMF) index in the study group patients was also significantly higher than the mean value of DMF index in the control group subjects. Conclusion. It seems that mental disorder among adolescents mainly affects oral health indirectly, decreasing motivation of patients in maintaining oral hygiene.
Aortoduodenal fistula after abdominal aortic aneurism resection: Two case reports
Authors: Tomic Aleksandar , Marjanovic Ivan , Kostic Zoran , Mitrovic Miroslav , Slavkovic Damjan , Vaskovic Igor , Jevtic Aleksandar , Sekulic Dragan
Published: October 2018

Introduction. Aortoenteric fistula (AEF) is rare and extremely difficult complication of aortic surgery. We presented two cases of secondary aortoduodenal fistula (SADF) as complication after aortic surgery. Case reports. In the first patient SADF happened 11 years after open abdominal aneurysmal resection with gastrointestinal tract (GIT) bleeding. After negative esophagogastroduodenoscopy (EGDS) we performed multislice computed tomography (MSCT) which revealed contrast leakage in duodenum from 10 cm wide visceral aortic aneurysm. The patient was treated with graft excision, aneurysmal reduction, sewing of proximal and distal aortal stumps, bowel repair followed by axillobifemoral bypass (AxFF). The patient dismissed on 30th postoperative day. The second case of ADF happened five months after endovascular reconstruction of abdominal aorta with GIT bleeding and fewer. During following 8 days, he had three negative EGDS. On MSCT we found signs of endoleak, free air in aneurysmal sac, and signs of blood in the intestine. On urgent operation we extracted stent graft, sewed proximal and distal aortal stumps, performed bowel repair and AxFF. The patient died a day after operation with signs of sepsis and multiple organ failure syndrome. Conclusion. Conventional treatment of ADF means extraanatomic AxFF with complete excision of infected graft or stent graft, with closure of aorta?s proximal and distal stumps and duodenal repair. Because of high mortality, prompt diagnostic evaluation and quick decision of an adequate operative treatment is necessary. Although European Society of Vascular Surgery recommendations, as a guide, are very helpful, there is no unique attitude about management of AEF, so each patient should be specifically treated.
Autoantibodies to the IA-2 Extracellular Domain Refine the Definition of “A+” Subtypes of Ketosis-Prone Diabetes
Authors: Mulukutla Surya N. , Acevedo-Calado Maria , Hampe Christiane S. , Pietropaolo Massimo , Balasubramanyam Ashok
Published: October 2018

OBJECTIVE

Autoantibodies directed against tyrosine phosphatase IA-2 antibody (IA-2 Ab) are diagnostic for autoimmune type 1 diabetes. Conventional assays target the intracellular domain of IA-2. Among patients with ketosis-prone diabetes (KPD), characterized by presentation with diabetic ketoacidosis (DKA), >60% of adults lack three classic islet autoantibodies—IA-2, GAD65, and ZnT8 Abs—associated with type 1 diabetes. We aimed to determine whether apparently autoantibody-negative (“A−”) KPD patients possess occult IA-2 Ab directed against full-length IA-2 (IA-2FL) or its extracellular domain (IA-2EC).

RESEARCH DESIGN AND METHODS

We developed an assay that targets IA-2FL and IA-2EC and used it to analyze 288 subjects with A− KPD.

RESULTS

Ten A− KPD patients were positive for IA-2EC Ab (3.5%), and three were also positive for IA-2FL Ab (1.0%), similar to frequencies in type 1 and type 2 diabetes.

CONCLUSIONS

Measurement of IA-2FL Ab and IA-2EC Ab improves the accuracy of the Aβ classification of KPD patients.
The Past is a Horny Country: Porn Movies and the Image of Archaeology
Authors: Almansa Sánchez Jaime
Published: October 2018

Do you watch porn? Most people lie when answering this question.The pornographic industry would not be as big as it is if nobodyconsumed it. As with other cultural expressions, archaeology andthe past are also represented in porn movies, affecting the publicimage of our discipline as it does advertising, literature, or cinema.This paper explores and analyses the multiple references to thepast and our profession found within the context of pornographicmovies and other erotic products, highlighting the potential ofpornography as another tool for informal education.
Lies, damned lies, and archaeologists: Antiquities trafficking research as criminology and the ethics of identification
Authors: Yates Donna
Published: October 2018

By definition, our interactions with those that we consider to be ‘extradisciplinary’ are predicated on our own self-identification as archaeologists. It isn’t news that some stakeholders react negatively to archaeologists. To them, we are not neutral, well-meaning stewards of the past, but rather a competing group that doesn’t compromise and stifles dissent by claiming a mandate on defining ‘the public good’. How can I effectively engage with such groups when my identity as an archaeologist is unforgivable?Perhaps the archaeologist must leave archaeology.This paper is about transitioning from a PhD in archaeology to apost doctoral fellowship in a criminology department. As part of theUniversity of Glasgow’s Trafficking Culture project, I study the looting of archaeological sites and the illicit trafficking of cultural property. For half a century archaeologists have clashed with antiquities intermediaries, collectors, and dealers leaving wounds and scars on both sides. These folks will not engage with an ‘archaeologist’, but they are willing to talk to a ‘sociologist’ or even a ‘criminologist’ which is how I now present myself.This paper will focus on the ethical issues of disciplinary labelling. What are the primary benefits of presenting myself as ‘extra-archaeological’? Of not asserting archaeological expertise? Am I obliged to reveal my archaeological background? Does this change of discipline have a tangible effect on the research that I conduct? Do I protect cultural property or protect informants? Am I still an archaeologist?
Can 3000 schoolchildren make history? How to involve a community in exploring its late medieval roots; field report from an ongoing slow archaeology project
Authors: Traaholt Anne , Fønsteilen Kjartan
Published: October 2018

Many archaeological excavations leave behind great amounts ofunresearched cultural layers ready to be cleared when the bulldozers move in to start new construction at the site. This can be due to parts of site falling outside the main scientific focus or soil removed due to development without any prior proper excavation taking place. These soils, often rich in artefacts are later lost when new area use takes place. The project presented here shows how such cultural layers can provide valuable teaching grounds for young people even when they have been removed from the site. By creating a program where large numbers of schoolchildren from the region near to a particular site annually participate in excavations of a cultural layers rescued after the scientific researchers have left the site, we have put local history on the agenda. The children come with their teachers to a local museum and they all become ‘archaeologist for a day’ by participating in sifting through the soil, catalog the artefacts and add their understanding of their region’s history. All guided by archaeologists on the spot.Involving schoolchildren in a long lasting excavation project gives a rare opportunity to develop a constructive relationship with a community.
Civilizational Dimension of World Politics: Problems and Opportunities
Authors: YAKOVLEV A. I.
Published: October 2018

The article considers the civilizational dimension of world politics. In the conditions of the transitional era, the crisis of the Western industrial model of development, the demographic transition and the change in the technological order, the deep foundations of societies that belong to this or that civilization remain important. Religious and cultural factors began to exert a more marked influence on international political and economic processes in both East and West. Examples of this can be seen not only in the countries of the Arab East, but also in Western Europe. The transformation of the world system today is determined by the parameters of globalization and regionalization: on the one hand, the desire of Western countries led by the US to maintain its dominant position in the world, and on the other, the growing importance of nonWestern countries (BRICS, SCO, etc.). An important aspect of the ongoing confrontation is the civilizational differences, in particular, the religious and secular worldview. This circumstance does not make the “clash of civilizations” inevitable, but encourages them to cooperate and more adequately take into account the cultural and civilizational factor in international relations.
The Elephant's Footprint: An Ancient Indian Logic Diagram
Authors: Wujastyk Dominik
Published: October 2018

A seminal article by Margaret Baron, published in 1969, explored the history of set diagrams (Venn diagrams). However, Baron did not look beyond the evidence of European sources. This article presents evidence of a literary simile from ancient India that exemplifies the idea of a larger circle including within it many smaller circles, each circle standing for an ethical concept. The simile – an elephant's footprint enclosing the footprints of smaller animals – first appears in the Buddhist Canon, and it was used occasionally in South Asian literature through the following millennia until the eighteenth century. I argue that the Elephant's Foot simile can be added to Baron’s catalogue of historical cases where ancient authors were using language that implied a simple concept of logical sets.
Towards Building Reuse-Based Digital Libraries for National Universities in Patagonia
Authors: Cechich Alejandra , Buccella Agustina , Manrique Daniela , Perez Lucas
Published: October 2018

This article presents a case study exploring the use of software product lines and reference models as mechanisms of a reuse-based design process to build digital libraries. As a key component in a modern digital library, the reference architecture is responsible for helping define quality of the resulting repository. It is true that many efforts have been addressed towards providing interoperability; however, repositories are expected to provide high levels of reuse too, which goes beyond that of simple object sharing. This work presents the main steps we followed towards building a reusable digital library capable of accommodating such needs by (i) providing mechanisms to reuse resources, and (ii) enabling explicit sharing of commonalities in a distributed environment.
Nouvelles observations de Malva arborea (L.) Webb et Berthel. sur le littoral algerien
Authors: Amari Dalil , Moulaï Riadh , De Belair Gérard , Vela Errol
Published: October 2018

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Una muestra del herbario de algas de Odón de Buen (1863-1945) en una cromolitografía de 1907
Authors: Pérez-Rubín Juan
Published: October 2018

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Sinopsis de Ipomoea L. y Merremia Dennst. Ex Endl. (Convolvulaceae) en el norte del Perú (Lambayeque y territorios adyacentes). Synopsis of Ipomoea L. and Merremia Dennst. ex Endl. (Convolvulaceae) in the North of Peru (Lambayeque and surrounding areas)
Authors: Alarcón-Bravo Luciana , Torres-Reaño Gabriela , Austin Daniel F. , Rojas-Idrogo Consuelo , Delgado-Paredes Guillermo E.
Published: October 2018

Español. El objetivo principal de este trabajo es identificar y comentar los registros anteriores y nuevos de los géneros Ipomoea y Merremia en el departamento de Lambayeque (Perú) y zonas circundantes. Se describen 18 especies de Ipomoea y 3 especies de Merremia: Ipomoea alba, I. asarifolia, I. hederifolia, I. indica, I. nil e I. wrightii. I. aristolochiifolia, I. batatas, I. cairica, I. carnea, I. incarnata, I. parasitica, I. piurensis, I. purpurea, I. tiliacea, Merremia aegyptia, M. quinquefolia y M. umbellata son nuevos registros para la flora de Lambayeque. Incluso Ipomoea amnicola, I. dumetorum e I. quamoclit se reportan como nuevos registros en el departamento adyacente de Cajamarca. Se presentan claves para identificar las especies y los grupos intergenéricos. La distribución de cada especie es también presentada para mostrar su biogeografía.English. The main of this paper is to identifie and to comment previous and new records of Ipomoea and Merremia in Lambayeque Department (Peru) and surrounding areas. 18 species of Ipomoea and 3 species of Merremia are reported: Ipomoea alba, I. asarifolia, I. hederifolia, I. indica, I. nil e I. wrightii. I. aristolochiifolia, I. batatas, I. cairica, I. carnea, I. incarnata, I. tiliacea, I. parasitica, I. piurensis, I. purpurea, Merremia aegyptia, M. quinquefolia y M. umbellata are new records for the Lambayeque flora. Even, I. amnicola, I. dumetorum and I. quamoclit were found as new records in the adjacent Cajamarca Department. Keys are provided for to identifie species and infrageneric groups. Distribution of each species is also presented in order to show their biogeography
Observaciones sobre gramíneas del centro de la Península Ibérica. Observations on grasses from central Iberian Peninsula.
Authors: Hernández Palacios Gonzalo
Published: October 2018

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Consideraciones sobre el género Hedypnois (Asteraceae) y tipificación de dos especies descritas por Willdenow. Considerations in the genus Hedypnois (Asteraceae) and typification of the two described species by Willdenow.
Authors: Talavera María , Berjano Regina , Jímenez Francisco Javier , Talavera Salvador
Published: October 2018

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Frequency of thiopurine S-methyltransferase gene variations in Turkish children with acute leukemia
Authors: Akın Dilara Fatma , Aşlar-Öner Deniz , Kürekçi Emin , Akar Nejat
Published: October 2018

In this study we aim to determine the genotype distribution and allele frequencies of common TPMT (*2, *3A, *3B and *3C) polymorphisms in Turkish children with acute leukemia. The study population consisted of 169 patients aged between 1 and 15 years who were admitted to Losante Pediatric Hematology and Children`s Hospital with the diagnosis of acute leukemia. Genotyping of TPMT polymorphisms was screened with real-time PCR using fluorescence melting curve detection analysis. We found that the frequencies of four allelic variants of TPMT are *2 (238 G > C) (0,0%), *3A (460G > A and 719A > G) (1.7%), *3B (460G > A) (1,7%) and *3C (719A > G) (2.4%). Frequency of TPMT alleles increases the efficacy of leukemia treatment. Thus, TPMT genotyping can be useful for optimizing 6-MP therapy.
Acute pancreatitis in children: A single center experience over ten years
Authors: Sağ Elif , Kaya Gülay , Bahat-Özdoğan Elif , Karahan Süleyman Caner , İmamoğlu Mustafa , Sarıhan Haluk , Çakır Murat
Published: October 2018

Acute pancreatitis (AP) is an inflammatory disease characterized by sudden onset abdominal pain together with elevation of pancreatic enzymes and radiographic changes. Increased incidence of AP in children have been reported in recent reports. In this study; we aimed to analyze the demographic characteristics, etiology, outcome and incidence of AP among hospitalized children in our center. Medical records of the children with AP since January 2005 were analyzed from hospital files (N=63). Major etiologies were systemic diseases (14.3%), trauma (11.1%), cholelithiasis (9.5%); 54% (N=34) of the patients had mild AP, while 28.6% (N=18) had moderately severe AP and 17.4% (N=11) had severe AP. Organ dysfunction was found in 11 patients (17.4%) at initial examination. During the follow-up period (68.1±24.3 months), 10 patients (15.9%) experienced 24 recurring AP (RAP) attacks. Male gender, presence of local pancreatic or systemic complications at initial attack, metabolic and hereditary diseases were associated with the increased risk of RAP (p < 0.05 for all). The mortality rate associated with AP was 4.84%. There was an increase in the incidence of AP since 2010 (9.57 in 2009-2010 vs. 39.17/10,000 patients in 2015-2016 years; p=0.0002; OR: 4.1) among the hospitalized patients. Our results indicate that AP is a mild disease in children and the incidence is increasing among hospitalized children. Male gender, presence of local pancreatic or systemic complications at initial attack, metabolic diseases and hereditary diseases were associated with the increased risk of RAP.
Positional installation of contrast (PIC) and Redo-PIC cystography for diagnosis of occult vesicoureteral reflux
Authors: Karadeniz-Cerit Kıvılcım , Thomas David Terence , Ergun Raziye , Yıldız Nurdan , Alpay Harika , İnanir Sabahat , Dağlı E Tolga , Tuğtepe Halil
Published: October 2018

To evaluate the value of Positional Installation of Contrast (PIC) and Redo-PIC cystography in patients with febrile recurrent urinary tract infection (f-UTI) where voiding cystourethrogram (VCUG) was negative. Patients with recurrent f-UTI with no reflux on VCUG referred to the outpatient clinic of Pediatric Urology, between June 2011 and June 2016 were included in the study. A PIC cystography was performed in all patients. When reflux was found, subureteric injection was performed. Urinary cultures were used for follow-up. Patients that continued having f-UTI, received redo-PIC cystography. PIC cystography was performed on 42 patients. The average age of patients was 8.0±3.6 years. Vesicoureteral reflux (VUR) was detected in 41 patients. Average follow-up time after PIC cystography was 44.6 months. Thirty-three patients (80.5%) were free of f-UTI after PIC cystography and concurrent subureteric injection. Eight patients continued to have recurrent f-UTI. Six of these patients underwent redo-PIC cystography and PIC-VUR was demonstrated in all patients. After an average follow up of 30.9 months, no f-UTI was seen in these patients. The success rate of 80.5% (33/41) after 1st PIC cystography and subureteric injection increased to 95.1% (39/41) after redo-PIC cystography in six patients. Patients with recurrent f-UTIs without VUR on VCUG are an important challenge. PIC cystography is an important tool in demonstrating occult VUR in these patients. We advise that PIC cystography is performed in all patients with recurrent f-UTI with negative VCUG and redo-PIC cystography in patients who continue to have f-UTI after 1st PIC cystography and subureteric injection.
Low hemoglobin A1c levels in a patient with diabetic ketoacidosis: Fulminant type 1 diabetes mellitus
Authors: Keskin Melikşah , Savaş-Erdeve Şenay , Çetinkaya Semra , Aycan Zehra
Published: October 2018

Fulminant type 1 diabetes mellitus (FT1DM) is a clinical condition that is characterized by remarkably rapid and complete pancreatic β-cell destruction, rapid onset of hyperglycemic symptoms followed by ketoacidosis. In most cases this process takes a few days. Although rare, there have been clinical manifestations with a prolonged progress that lasts longer than one week. This study focused on the case of a 35-monthold boy who was referred to our clinic with the diagnosis of diabetic ketoacidosis, and later had a modest elevation in hemoglobin A1c (HbA1c) levels (6.7 %) incompatible with his significantly elevated blood glucose levels. The autoantibodies against pancreatic β-cells were negative. On the basis of these above mentioned findings, our patient was then diagnosed with fulminant type 1 diabetes mellitus. If patients with diabetic ketoacidosis have no elevation in HbA1c levels, they should be assessed for possible clinical factors that can lead to lower detectable levels of HbA1c. Furthermore, FT1DM which is characterized by very rapid and potentially fatal progression should be considered as a differential diagnosis in these patients.
Stuck tunneled central venous catheters in children: Four cases removed by angiography assistance
Authors: Ateş Ufuk , Yağmurlu Aydın , Bingöl-Koloğlu Meltem , Uçar Tayfun , Can Özlem Selvi , Göllü Gülnur , Ergün Ergun , Mammadov Fuad , Taştekin Nil Yaşam , Aktuğ Tanju
Published: October 2018

Adherent tunneled catheters can usually be removed by a surgical cut down, but in some cases the line can become stuck to the wall of the central veins. In such cases, forceful traction can cause vascular injury, or fracture of the catheter. We present four cases of fixated cuffed tunneled catheters. Three children had acute lymphoblastic leukemia and one had an immunodeficiency syndrome. All catheters were made from polyurethane. Indwelling times were 12-24 months. All patients` catheters were removed with great difficulty by trans-femoral access. The angiography-assisted technique is safe and easily-applied for the removal of stuck catheters in pediatric patients. These cases raise important questions concerning the maximum indwelling time and the choice of catheter material when implanting permanent central venous catheters (CVCs) in children.
Ogilvie syndrome presenting with septic shock
Authors: Özsoylu Serkan , Akyıldız Başak Nur , Dursun Adem
Published: October 2018

Acute colonic pseudo-obstruction (ACPO) is also known as Ogilvie`s. We report a 10-year-old child with an unremarkable past history who presented with septic shock including hypotension, prolonged capillary refill time, decreased urine output ( < 0.5 ml/kg/h), metabolic acidosis, liver failure, respiratory failure. The symptoms resolved with supportive therapy. In our patient septic shock contributed to Ogilvie syndrome. Although it is a rare condition in pediatric population, pediatricians should be aware of children with abdominal distention; supportive management is successful and morbidity/mortality is minimal.
Co-optimization of oil recovery and CO2 storage for cyclic CO2 flooding in ultralow permeability reservoirs
Authors: Sun Lili , Hao Xining , Dou Hongen , Daniel Adenutsi Caspar , Li Zhiping , Zhang Yunjun
Published: October 2018

Cyclic CO2 flooding is an efficient method to enhance oil recovery in ultralow permeability reservoirs. As the demand for low carbon economy development, co-optimization of CO2 storage and utilization should be considered. In this research, initially a comprehensive optimization method was proposed, which co-optimize oil recovery and CO2 storage by different weighting factors. Then, a series of core flooding experiments were performed using the core samples collected from Changqing oilfield, which is a ultralow permeability reservoir with heterogeneity and micro-cracks, CO2 injection parameters of slug size and Injection-Soaking Time Ratio (ISR) were optimized. The results revealed that the optimal injection parameters changed for different optimization objectives. In the case where equal important to oil recovery and CO2 storage were considered, the optimum CO2 injection parameters in the ultralow permeability reservoirs were 0.03PV for slug size and 1:1 for ISR. Comparing the method of oil recovery optimization (ω
1 = 1) to co-optimization of oil recovery and CO2 storage (ω
1 = ω
2 = 0.5), oil recovery was reduced by 8.93%, CO2 storage was significantly increased by 25.85%. The results provide an insight into parameter optimization of CO2 enhanced oil recovery design.
Effect of reservoir and production system integration on field production strategy selection
Authors: Filho João C. V. Hohendorff , Schiozer Denis J.
Published: October 2018

In petroleum engineering studies, the integration of reservoir and production system models can improve production forecasts. As the integration increases computation time, it is important to assess when this integration is necessary and how to choose a suitable coupling methodology. This work analyzes the influence of this integration, for a petroleum field in the development phase, evaluating the effects on the production strategy parameters. We tested a benchmark model based on an offshore field in Brazil so we could validate the solution in a reference known model. This work continues the research of Von Hohendorff Filho and Schiozer (2014, 2017) and aims to improve step 11 of the 12-step reservoir development and management methodology by Schiozer et al. (2015). The solution is tested in a reference model. Using the integrated production system and reservoir models from step 11 of the methodology, we re-optimize the production strategy of a standalone production development, while evaluating net present value as the objective function. We adapted an assisted workflow to include the optimization of new variables, such as pipe diameters of the well systems and gathering systems, platform positions, and artificial lift application, and compared these with the production strategy obtained from the same benchmark in a standalone approach. Comparing the integrated standalone and integrated production strategies, we observed important changes that indicate the need to integrate reservoir and production models. The optimized integrated systems resulted in significantly increased net present values, maintaining the same oil recovery factor while requiring lower initial investment. We implemented the best integrated production strategy and the integrated production strategy derived from the standalone case in the reference model which, in this case, represents a real field (emulating a real situation). Integration in the implementation step impacted the production forecast more than the optimization step, demonstrating the benefits of integrating reservoir and production systems to increase project robustness.
ALGILANAN ÖRGÜTSEL DESTEK VE ÖRGÜTSEL ÖĞRENMENİN İÇ GİRİŞİMCİLİK DÜZEYİ ÜZERİNE ETKİSİ: KIRIKKALE BELEDİYESİNDE BİR ARAŞTIRMA
Authors: ÇİFTÇİ Gamze Ebru , HIRLAK Bengü , DOĞAN Lütfi
Published: October 2018

Bu
araştırmada, çalışanların örgütsel destek algılarının ve örgütsel öğrenme
düzeylerinin iç girişimcilik davranışları üzerindeki etkisinin belirlenmesi
amaçlanmıştır. Bu amaçla, Kırıkkale Belediyesinde çalışan toplam 100 çalışan
üzerinde bir araştırma yapılmıştır. Araştırmada veri toplama yöntemi olarak
anket kullanılmıştır. Anket soruları, literatürde güvenilirliği kanıtlanmış
ölçeklerden alınmıştır. Anket sonucu elde edilen veriler SPSS programı
kullanılarak analiz edilmiştir. Araştırma sonuçlarına göre; örgütsel öğrenme
boyutlarından açık fikirliliğin, yenilikçilik, risk alma, özerklik ve bireysel
ağları genişletme üzerinde olumlu yönde etkisi olan bir boyut olduğu tespit
edilmiştir. Yine örgütsel öğrenme boyutlarından sadece öğrenme taahhüdünün ve
paylaşılan vizyonun proaktiflik üzerinde olumlu yönde etkisi olan boyutlar
olduğu belirlenmiştir. Ayrıca örgütsel destek algısının yenilikçilik ve
proaktiflik üzerinde olumlu yönde etkisi olan değişken olduğu tespit
edilmiştir.
KOBİ’LERDE UYGULANAN İNOVASYON STRATEJİLERİNDE YÖNETİCİLERİN DÖNÜŞÜMCÜ LİDERLİK ÖZELLİĞİNİN ROLÜ
Authors: YILDIRIM M. Halit , SUNMAN Gözde , ORUÇ Şükran
Published: October 2018

Bu çalışmanın amacı, yöneticilerin dönüşümcü liderlik özelliklerinin
KOBİ’lerde inovasyon (yenilik) stratejilerinin uygulanmasında etkili olup
olmadığını belirlemektir. Nicel araştırma yöntemi esas alınarak hazırlanan bir
anketle Aksaray OSB’de faaliyet gösteren KOBİ’lerdeki 149 üst düzey
yöneticilerden kolayda örnekleme yöntemiyle veri toplanmıştır. Toplanan veriler
korelasyon, ANOVA, regresyon analizine tabi tutulmuştur. Yapılan analiz
sonuçlarına göre, yöneticilerin dönüşümcü liderlik özelliklerinin inovasyon
stratejilerinin uygulanmasında etkili olduğu belirlenmiştir. Ayrıca, dönüşümcü
liderlik özelliğinin, inovasyon stratejilerinin alt boyutları olan agresiflik
ve risk alma boyutları üzerinde etkisinin olmadığı sonucuna ulaşılmıştır. Buna
karşılık; analiz, savunmacılık, gelecek odaklılık ve proaktiflik alt boyutları
üzerinde etkisi olduğu belirlenmiştir. Bu sonuç, yöneticilerin sahip olduğu
dönüşümcü liderlik özellikleri sayesinde KOBİ’lerde inovasyon stratejilerini
uygulayabildiklerini göstermektedir.