bluuebunny/crossref_metadata_2025 huggingface dataset:
The watershed transform in pathological image analysis: application in rectiulocyte count from supravital stained smears
Authors: Sanyal Parikshit , Barui Sanghita
Published: February 2019

Background: Morphometric studies based on image analysis are a useful adjunct for quantitative analysis of microscopic images. However, effective separation of overlapping objects if often the bottleneck in image analysis techniques. We employ the watershed transform for counting reticulocytes from images of supravitally stained smears.Methods: The algorithm was developed with the Python programming platform, using the Numpy, Scipy and OpenCV libraries. The initial development and testing of the software were carried out with images from the American Society of Hematology Image Library. Then a pilot study with 30 samples was then taken up. The samples were incubated with supravital stain immediately after collection, and smears prepared. The smears were microphotographed at 100X objective, with no more than 150 RBCs per field. Reticulocyte count was carried out manually as well as by image analysis.Results: 600 out of 663 reticulocytes (90.49%) were correctly identified, with a specificity of 98%. The major difficulty faced was the slight bluish tinge seen in polychromatic RBCs, which were inconsistently detected by the software.Conclusions: The watershed transform can be used successfully to separate overlapping objects usually encountered in pathological smears. The algorithm has the potential to develop into a generalized cell classifier for cytopathology and hematology.
Retrospective study on socio-demographic factors responsible for acceptance of IUCD among postpartum women
Authors: Sable Pavan , Bagul Rajendra , Singh Alokkumar
Published: February 2019

Background: Despite the availability of modern and scientific measures, unacceptably high numbers of maternal deaths still occur in developing countries. Spacing methods of family planning may avoid maternal and infant deaths. The Government of India launched postpartum IUCD (PPIUCD) services in the year 2000; although acceptance of Postpartum IUCD is a real concern.Methods: The retrospective study was conducted in rural government hospital in Maharashtra during 2016 - 2017. We analyzed sociodemographic variables and acceptance of Postpartum IUCD among postpartum women. The sample size was 595 (N=595). The sociodemographic factors studied included age, type of delivery, sex of newborn, socioeconomic status, educational status, etc.Results: The total postpartum women included in the study was 595, out of which, 202 (34%) accepted for postpartum IUCD whereas 393 (66%) rejected for the same. The most common age group was 20-25 years (65%), followed by age group 25-30 years (30%). Primipara was the comment group (45%) and normal vaginal delivery was common (95%). The educational status of both, the postpartum women and their husband, showed statistically significant association with acceptance of postpartum IUCD (p<0.05).Conclusions: The acceptance Postpartum IUCD was low (34%). The women’s and their husband’s educational status is an important factor in acceptance of Postpartum IUCD (p<0.05). Due attention should be given to enhancing educational level of women, also effective counselling both for pregnant woman and her husband during ANC is required.
Histopathology of placenta in intrauterine growth restriction (IUGR)
Authors: Khajuria Ruchi , Sharma Megha
Published: February 2019

Background: Birth of healthy term baby depends on normal placenta. IUGR is a condition associated with placental insufficiency. There is a close relationship between IUGR and placental qualitative changes. The aim of the present study was to evaluate the morphological and histological changes in placentas of IUGR fetuses and in placentas of normal uncomplicated pregnancies and to determine the relationship that exists between morphological change and frequency of IUGR.Methods: In a cross sectional study conducted in the department of Pathology, GMC Jammu, a total of 60 placenta were received, 30 placenta of IUGR fetus (group 1-case) and 30 placenta of uncomplicated pregnancy with normal single fetus (group 2-control). Exclusion criteria: Twin pregnancy, gestational hypertension, diabetes, congenital anomaly, antepartum hemorrhage and systemic disorder.Results: Placental weights in IUGR group were significantly lower than control group. Average placental weight in IUGR group was 425 gms while in the control group (normal placenta) it was 550 gms. Infarction, intervillous thrombosis, chorionic villitis, hemorrhagic endovasculitis, placental intravascular thrombi, perivillous fibrin deposition, fibrinoid necrosis and villous edema were found to be more common in IUGR group (Group 1-case group) than Normal (Group 2- control group).Conclusions: This study highlightened that significant pathological differences were found between the placentas of IUGR fetus and normal fetus. The gross and microscopic measurement of a placenta is a good way to get proper information about IUGR and helps in management of the pregnancy.
PSA density as a parameter in prostate biopsy decision of patients with prostate sized 80 mL or larger
Authors: Ediz Caner , Cimen Serhan , Akan Serkan , Temel Muhammed Cihan , Yilmaz Omer , Koksal Ozlem
Published: February 2019

Background: Patients with high prostate volume (>80 ml) and high PSA levels make it difficult to decide on prostate biopsy. In this study, author aimed to detect of predictive factors to distinguish malignant or benign prostatic lesions in patients with prostate size over 80 ml.Methods: A total of 299 patients underwent TRUSBP at the clinics between 2012-2017. Cases with prostate volume over 80 ml were divided into groups according to the pathology by benign (group 1) or malign (group 2). Author evaluated the predictive factors in two groups. Patient’s age, grading and findings of digital rectal examination, prostate volume, number of received cores, total (tPSA) and free PSA (fPSA) before biopsy, rate of percentage of free to total prostate specific antigen (f/tPSA) and PSA density was compared in both groups.Results: Benign prostate hyperplasia was detected in 217 patients (72.58%) and prostate adenocarcinoma was detected in 82 patients (27.42%). The patient’s age, tPSA, fPSA and PSA density were 63.81 years, 9.71 ng/ml, 1.78 ng/ml and 0.10 g/ml2 in group 1 and 69.10 years, 38.32 ng/ml, 5.86 ng/ml and 0.42 ng/ml2 respectively. Patient’s age, tPSA, fPSA and PSA density was statistically significant between in two groups (p<0,05). Number of received cores and rate of f/tPSA were 14.02-13.84% and 19.06-17.62% in group 1 and 2, respectively and was not statistically significant. In group 2, prostate adenocarcinoma was most common detected with Gleason score 4+3 in 21 of 82 patients (25.6%).Conclusions: High prostate volume (>80 ml) has a significant influence in PSA values and results of the biopsy, PSA density is extremely important in performing prostate biopsy decisions.
Cerebellar infarction complicated with acute hydrocephalus
Authors: Rosyidi Rohadi M. , Priyanto Bambang
Published: February 2019

Acute hydrocephalus is a rare manifestation of posterior circulation strokes. Clinical worsening and coma may occur in addition to these symptoms of cerebellar dysfunction. Timely and careful approach will certainly prove to be life saving when deciding for a shunt procedure in a patient developing obstructive hydrocephalus following cerebellar infarct. The case presented here is a reminder for both this rare complication, and the treatment approach. We present a patient with cerebellar infarct and secondary obstructive hydrocephalus. Forty three year old male patient was brought to the emergency room in our hospital with unconsciousness, before that patient with suddenly developing dizziness, loss of balance and vomiting. His neurological examination showed that he was coma. The patient's brain computed tomography scan showed severe third and lateral ventricular dilation suggestive of obstructive hydrocephalus. Following shunt placement and suboccipital decompression, the patient recovered and was able to walk without assistance. Cerebellar infarcts may cause death as a result of pressure increase in the posterior fossa and pressure on the brain stem due to edema. Moreover, the aquaductus or the fourth ventricle may close because of edema and cause obstructive hydrocephalus and acute intracranial pressure increase. Temporary external ventricular drainage or permanent shunt systems and surgical decompression of the posterior fossa may be considered to prevent progressive neurologic worsening. In conclusion, we wished to point out that a timely surgical procedure in a cerebellar infarct case where acute hydrocephalus developed could be life saving.
Free vascularized fibular graft in patient with skeletal defect after neurofibroma surgical excision of forearm
Authors: Persada Isma Satria Pandu , Budi Santoso Agung Riyanto , Junus Huwae Thomas Erwin Christian , Irsan Istan Irmansyah , Purbiantoro Yudhi
Published: February 2019

The free vascularized ﬁbular graft has been successfully applied as a reconstruction option in patient with large secondary skeletal defects result from excision of pathologic tissue after neurofibroma surgical excision. It provides a strong cortical strut for reconstruction of defects, so that the free vascularized ﬁbular graft is ideal for ulna reconstruction. A 22-year-old male with lump in his right forearm for 3 months previously which become bigger and more painful. There was also sings of ulnar nerve disfunction. From the CPC result, we diagnosed forearm neurofibroma. We performed wide excision and reconstruction using free vascularized fibular graft. On the last follow up, the active and passive ranges of motion (ROM) of 4th and 5th metacarpal was measured with the help of a goniometer. The ulnar neurological state was tested by manual testing and graded on the Medical research council (MRC) scale. Four weeks after surgery, the operation wound at the right forearm and right lower leg was good and no infection signs. The graft viability was good with compromised vascularity. The post-operative passive and active ROM of the 4th and 5th metacarpal able did full extend. The post-operative sensoris level of the ulnar area improved from pre-operative sensoris level.Post-operative follow-up, in the early period (up to 6 weeks) we monitor the graft viability. Our case reported good result in the operation wound, the graft viability, the passive and active ROM of the 4th and 5th metacarpal and the sensoris level of the ulnar area.
Woven Narratives: A Craft Encounter with Tapestry Weaving in a Residential Aged Care Facility
Authors: Pappne Demecs Ilona , Miller Evonne
Published: February 2019

For six months, a tapestry artist/researcher moved her studio into an aged care home to conduct a participatory art project. Drawing on ethnographic-based qualitative approaches, narrative inquiry and researcher-generated photographs, this arts-based research textually and visually documents the impact of introducing the studio-based craft activity of participatory tapestry weaving into an aged care environment. As well as highlighting the joy of creative collaboration and of learning a new skill, this project explores how tapestry weaving facilitated the understanding of the participants’ worlds through stories and reminiscence. This paper also disseminates that craft, as a practice and method, connects materials, ideas and people through engagement, and facilitates wellbeing. Given rapid population ageing, and the fear and stigma surrounding aged care homes, this paper argues that craft practice might help demystify and connect aged care with the broader community, as well as enhancing residents’ quality of life.
Craft, Relational Aesthetics and Ethics of Care
Authors: MacGill Belinda
Published: February 2019

A conceptual framework for looking and listening operates within aesthetic and affective moments when crafting objects. Assembling and modifying Sea Balls into arranged composition is my craft process that I use to access a state of mind play. Each found and modified object represents a key theoretical framework that I connect and re-organize in relation to each other to produce new ways of perceiving. Considerations of Massumi, Fish and Jameson’s (2002) notion of perception and how I experience affect through embodiment in the moment of re-crafting and re-assembling items is central to the practice. Emergent ideas occur through re-crafting found objects in conjunction with broader considerations of relational aesthetics.
Storymaking Belonging
Authors: Bunda Tracey , Heckenberg Robyn , Snepvangers Kim , Phillips Louise Gwenneth , Lasczik Alexandra , Black Alison L.
Published: February 2019

Sometimes data invites more of us. To be physically held and touched, through hands creating and crafting with matter, cultivating a closer connection to the fibres, threads, textures and sinews of data. Through touching and shaping the materiality of data, other beings, places and times are aroused. Here, we share the story of data that invited more of us and how this has spurred the creation of an exhibition titled Stories of Belonging with Indigenous and non-Indigenous artist/scholars for an arts festival in Queensland, Australia. This work by the collective, SISTAS Holding Space, deeply interrogates our ontological positionality as researchers, in particular what this means in the Australian context – a colonised nation populated through waves of migration.  The scars of colonization, migration and shame are held and heard through Black and White Australian women creating and interrogating belonging alongside each other – listening and holding space for each other. We air the pains of ontological destruction, silencing, disconnection and emptiness. Through experimental making research methodology, we argue the primacy of storying and making, and for provoking resonant and entangled understandings of belonging and displacement.
Settling the Soul through Va' (Relational) Ethics: An Ekphrastic Review of Hinekura Smith's "Whatuora: Theorizing 'New' Indigenous Methodology from 'Old' Indigenous Weaving Practice
Authors: Iosefo Fetaui
Published: February 2019

This piece is layered unapologetically with indigenous ways of being as the norm. From Fetaui’s bio, she aligns herself with Hinekura’s decolonization locale. The positioning of the author’s parents also connects and honours Hinekura’s mother who is instrumental in Whatuora.  The migration of Fetaui’s parents from Samoa highlights the importance of our Pacific history and where our ancestors both Māori and Samoa traversed our Moana/Vasa(ocean). This migration and positionality is significant in aligning Samoa as respectful cousins to the land of Māori, Aotearoa, notwithstanding the birth place of her parents and of her ancestors bones in Samoa.  Her chosen life partner and children are also named and her position within higher education is last.  Our whanau/aiga (family) our whenua/fenua (land) are our collective priorities. Our academic credentials are ranked last.
Pākehā Sampler wherein the Crafter Seams Research: An Ekphrastic Review of Christine Rogers's “The Needle as Medium: Using Embroidery to Speak to Ghosts”
Authors: Faulkner Sandra L.
Published: February 2019

This poem is an ekphrastic response to Rogers’s sampler. The author began by studying a photo of the sampler, and then wrote the first and last line of the poem using the following prompt: “Start by noting the emotional state of the artwork and conclude by looking back at the artwork and describing the pervading color.” The author considered their own use of knitting as a way to feel connected to kin, and how knitting as a form of crafting is a way to tell family stories (Faulkner, 2014). The author studied the photo more and wrote more lines that spoke to crafting as research method, imagining the artist as researcher as family story teller. The poem is an embodied presentation of the author’s response to Rogers, as poetry is the author’s art medium, words and language their paintbrush.
An Ekphrastic Poem for Phiona Stanley: Crafting a DIY Campervan and Crafting Embodied, Gendered Identity Performances in a Hyper-masculine Environment
Authors: Burford James
Published: February 2019

The following is an ekphrastic review of Phiona Stanley’s article in this issue: Crafting a DIY Campervan and Crafting Embodied, Gendered Identity Performances in a Hyper-masculine Environment.
Special Issue: Making as Method: Reimagining Traditional and Indigenous Notions of “Craft” in Research Practice
Authors: Fitzpatrick Esther , Reilly Rosemary C
Published: February 2019

In this special issue of “making as method” we aim to help shift the cultural narrative about craft by celebrating a diverse range of creative researchers who disrupt Western ways of knowing, celebrate a reclaiming of Indigenous knowledge and methods, provide space for decolonising practices, and in this digital age, reimagine traditional and Indigenous notions of craft in research. These authors in this issue all theorise their craft and provide, a rich and varied theoretical justification for “making as method.”
Ghanaian Educational System: A Deviation from Cultural and Socioeconomic Structure; A Bane for Unemployment
Authors: Obeng George ,   Department of Accounting Education, Faculty of Business Education, College of Technology Education Kumasi, University of Education, Winneba, Kumasi, Ghana
Published: February 2019

There is a growing concern of youth unemployment among tertiary graduates. Skills acquired in school provide an opportunity to grab. Unemployment sounds unusual in the preindependent colonial era when people learn the trade of the family. After independence, schooling for government jobs became a mantra. There is a shift from the culture and socioeconomic structure to governmental employment structure. This study determines how the population structure is outpacing public government business creating employment deficit and how the curriculum is defeating entrepreneurial development in Ghana. The literature is reviewed, and discussion with students as focused group addresses the unemployment problem. The study concludes that the educational curriculum that is not incorporating the traditional industries is creating unemployment.
Vietnam Game Between USA and China
Authors: Pietrasiak Małgorzata
Published: February 2019

Vietnam tries to respond to changing international situations, while attempting to stay in accordance with its own ambitions. China and the USA, the two superpowers, are the most important partners of Vietnamese strategy, which is determined by these two countries. The most important economic partner and ideological ally is China. But both sides have some serious problems to resolve such as maritime disputes. The situation imposes the need to seek counterbalance, a reliable ally who provides protection for its own interests. So Vietnam looks to balance improved relations with China while seeking deeper and multidimensional relations with the USA. The United States offers many advantages that are attractive to Vietnam. Inevitably, economic ties and new projects e.g. TPP, political, cultural and scientific cooperation make up these advantages. However, the United States can only provide support for the Spratly and Paracel Islands’ dispute and improving cooperative measures in the South China Sea with the presence of U.S. naval vessels and dialogue that assists Vietnam defense. Vietnam has again become an element in the American strategy of pivoting to Asia.
On the valuation of economic goods
Authors: Giza Wojciech
Published: February 2019

The presented study includes an analysis of the category of “good” on the basis of philosophy and economics. Particular attention was paid here to the factors determining the monetary value (price) of an economic good. While achieving the assumed objective of the research, answers to the following questions were sought: What is the difference, therefore, in the interpretation of good as an axiological category and good which economics deals with? What is the basis for the valuation of goods which are the subject of economic analysis? While seeking answers to these questions, an attempt was made to justify the thesis according to which contemporary understanding of the way the market valuates goods is limited to accepting the price understood as a variable representing a kind of relationship set in a given time period.
Quitosano y extractos de Pseudomonas fluorescens para el control de Alternaria alternata en jitomate (Solanum lycopersicum)
Authors: Rodríguez-Romero Víctor Manuel , Villanueva-Arce Ramón , Trejo-Raya Ariadna Berenice , Bautista-Baños Silvia
Published: February 2019

Alternaria alternata es un hongo que ocasiona daños en el cultivo de jitomate, se caracteriza por producir manchas negras y marchitez en plantas y frutos; los fungicidas sintéticos son las principales herramientas para controlar este hongo. El objetivo del estudio fue evaluar el efecto de la aplicación de mezclas de quitosano y extractos de Pseudomonas fluorescens en el control de  A. alternata bajo condiciones in vitro  sobre micelio y conidios, así como  la incidencia y severidad en plantas de jitomate en invernadero. El uso de la mezcla de quitosano 1.5% (p/v) + extracto de P. fluorescens 50% (v/v) resultó en 60 y 100% de inhibición in vitro de crecimiento micelial y germinación de conidios de A. alternata respectivamente. En invernadero, las plantas se inocularon con A. alternata, posteriormente se asperjaron con la mezcla de quitosano 1.5% (p/v) + extracto de P. fluorescens 50% (v/v) cada 7 días hasta la floración. La incidencia fue del 100 %, mientras que la severidad fue 51.8 y 38.9 para 7 días y 16.9 y 16.2% para 60 días, respectivamente. La mezcla utilizada es una opción para el control de A. alternata.
ОСОБЕННОСТИ ИСПОЛЬЗОВАНИЯ ГЕОТЕРМАЛЬНОЙ ЭНЕРГИИ С ПРИМЕНЕНИЕМ ТЕПЛОНАСОСНЫХ УСТАНОВОК В УСЛОВИЯХ НИЗКИХ ТЕМПЕРАТУР ВОЗДУХА
Authors: (Vyacheslav I. Maksimov) Максимов Вячеслав Иванович , (Amer Saloum) Салум Амер
Published: February 2019

Актуальность. Использование низкопотенциальной энергии водоемов с помощью теплонасосных установок в условиях низких температур окружающей среды – воздуха (период времени «осень–зима–весна»), характерных для большей части территории России, связано с возможным обмерзанием трубок испарителя теплонасосных установок, что приводит к изменению режима его работы. Анализ основных закономерностей процессов работы теплообменного оборудования, а также оценка энергоэффективности теплонасосных установок в условиях образования слоя льда на рабочих поверхностях испарителя до настоящего времени не проводились. Цель: экспериментальное изучение основных закономерностей процессов образования льда на рабочих поверхностях трубок испарителя теплонасосных установок, погруженных в воду с температурой, соответствующей условиям осеннего, зимнего и весеннего периодов года для большинства природных водоемов, расположенных в РФ, а также анализ основных характеристик работы ТНУ в таких условиях. Объект: парокомпрессионный тепловой насос, работающий в условиях образования слоя льда на рабочих поверхностях трубок испарителя, помещённых в резервуар с водой, температура которой ниже 280 К. Методы. Значения температур в характерных точках поверхности трубки теплообменника-испарителя и воды, находящейся в этой области, измерялись 15 хромель-алюмелевыми термопреобразователями (ХА термопары), подключенными через АЦП к компьютеру, и регистрировались в реальном времени. На основании полученных данных проводился расчет коэффициента преобразования теплонасосной установки по известной методике. Результаты. Выделен эффект образования льда, толщиной до 10 мм, на поверхности трубок испарителя при температурах воды ниже 280 К и времени работы установки до 8000 сек. Установлено, что этот слой существенно снижает интенсивность передачи теплоты в зону испарения хладагента. Эффективность работы теплонасосной установки при этом снижается до минимума. По результатам выполненных экспериментов сделан вывод о возможности работы теплонасосных установок при частичном покрытии трубки испарителя льдом. Сформулирована гипотеза о механизме процессов теплопереноса и фазовых превращений, протекающих вблизи трубок теплоносителя теплонасосной установки, при температурах воды менее 286 К. Результаты выполненных исследований являются базой для обоснования условий эффективного применения теплонасосных установок в регионах с низкими температурами воздуха в период осени, зимы и весны.
СОВРЕМЕННОЕ СОСТОЯНИЕ ВОЛЬФРАМОВОЙ ПРОМЫШЛЕННОСТИ РОССИИ
Authors: (Vitaly Yu. Khatkov) Хатьков Виталий Юрьевич , (Grigory Yu. Boyarko) Боярко Григорий Юрьевич
Published: February 2019

Актуальность работы обусловлена необходимостью изучения проблем вольфрамовой промышленности России. Цель: изучение динамики товарных потоков (производства, импорта, экспорта, потребления) вольфрамовых продуктов (вольфрамовых концентратов, паравольфрамата аммония, вольфрамового ангидрита, ферровольфрама и металлического вольфрама); выработка рекомендаций по оптимизации товарооборота вольфрамовых продуктов. Методы исследования: статистический, графический, логический. Результаты. Россия обладает достаточной сырьевой базой для обеспечения вольфрамовой продукцией национальных потребителей и поставок на экспорт. Возможно возобновление добычных работ на Тырнаузском ГОКе в Кабардино-Балкарской Республике, Джидинском вольфрамо-молибденовом комбинате в Республике Бурятия и осуществление нового добывающего проекта на Агылкинском месторождении в Республике Саха (Якутия). Российский рынок вольфрамового сырья подвержен резким колебаниям объемов производства, экспорта и импорта, осложняемым несогласованностью интересов добывающих, перерабатывающих и потребляющих вольфрамовую продукцию предприятий. Кроме сокращения добычи вольфрамового сырья вследствие остановки убыточных выработанных рудников возникли встречные импортно-экспортные потоки вольфрамовых концентратов и ферровольфрама, создавая искусственную импортозависимость для их потребителей. Для «оздоровления» российской вольфрамовой промышленности необходима консолидация предприятий, добывающих вольфрамовое сырье, и перерабатывающих предприятий в вертикально интегрированные холдинги с привлечением состоятельных инвесторов, реанимация закрытых добывающих производств на крупных и уникальных месторождениях с бедными рудами на основе улучшения технологий обогащения, поиски и освоение новых месторождений с богатыми вольфрамовыми рудами.
ПОДХОД К АВТОМАТИЗИРОВАННОМУ ФОРМИРОВАНИЮ НОРМ ВРЕМЕНИ НА ТЕХНИЧЕСКОЕ ОБСЛУЖИВАНИЕ СРЕДСТВ КИПиА, АСУ ТП И СООРУЖЕНИЙ СВЯЗИ ПРЕДПРИЯТИЙ НЕФТЕГАЗОВОЙ ОТРАСЛИ
Authors: (Aleksey O. Savelev) Савельев Алексей Олегович , (Vladimir P. Komagorov) Комагоров Владимир Петрович , (Sergey S. Mikhalevich) Михалевич Сергей Сергеевич
Published: February 2019

Актуальность исследования обусловлена необходимостью постоянного обновления и пересмотра стратегии повышения общей экономической эффективности предприятий нефтегазовой отрасли путем оптимизации затрат на проведение мероприятий технического обслуживания критически важных контрольно-измерительных приборов и автоматики (КИПиА), оборудования автоматизированных систем управления технологическим процессом (АСУ ТП) и сооружений связи. Цель: разработать научно обоснованный подход к автоматизированному формированию норм времени на техническое обслуживание оборудования КИПиА, АСУ ТП и сооружений связи предприятий нефтегазодобывающей отрасли, позволяющий сократить время и повысить общую эффективность процесса планирования технического обслуживания. Объекты: технологические установки добычи нефти и газа, подготовки, перекачки и хранения нефти и газа, поддержания пластового давления, трубопроводного транспорта, контролируемые и управляемые с помощью оборудования АСУ ТП, оснащенные различными приборами КИПиА; сооружения связи: радиорелейные и спутниковые системы связи, проводные системы связи, волоконно-оптические линии связи, телефонные станции, транковые системы связи, системы видеонаблюдения и сигнализации. Методы. Для автоматизации процесса формирования норм трудозатрат на техническое обслуживание нового оборудования используется метод классификации оборудования по категориям технической сложности. Результаты. Разработана методика автоматизированного расчета нормативов трудозатрат на техническое обслуживание оборудования предприятий нефтегазовой отрасли, основанная на категориях технической сложности. Определены требования к модулю формирования базовых норм трудозатрат информационной системы управления техническим обслуживанием, выполнена соответствующая программная реализация. На основе предложенной методики сформированы базовые нормы трудозатрат на техническое обслуживание средств АСУ ТП, КИПиА и сооружений связи ОАО «Томскнефть» ВНК.
Experiencia formativa y percepciones de estudiantes universitarios frente a la formación humana
Authors: Silva Ramírez Lina Marcela , Muñoz Gañán Gicela , Sepúlveda Zapata Catalina María
Published: February 2019

Este artículo presenta los resultados de una investigación desarrollada en la Corporación Universitaria Minuto de Dios, seccional Bello, que tuvo como objetivo comprender las percepciones que tienen los estudiantes universitarios frente a la formación humana, específicamente respecto al curso Proyecto de Vida. La metodología utilizada fue cualitativa, de enfoque investigación-acción, y se utilizaron técnicas como observación participante y grupos de discusión e instrumentos como bitácoras, relatorías y registro audiovisual. Los hallazgos permitieron identificar la valoración de la experiencia a través de categorías como sensaciones, aprendizajes, momentos significativos; adicional a ello, se lograron identificar las estrategias que los estudiantes consideraron favorables y sus percepciones antes y después del curso. Su pertinencia social radicó en la generación de rutas que afianzaron la reflexión de los estudiantes, para proyectar un aporte en las metodologías y tendencias de la formación humana en el ámbito universitario.
La ciencia: experiencia amigable con la lectura y la escritura
Authors: Briceño Espinosa Laura Liliana , Acuña Agudelo María Piedad
Published: February 2019

This research aimed to promote reading and writing processes in a public institution, using scientific thinking skills. An educational classroom project was proposed for seventh-grade students with the purpose of developing in them thought processes through scientific skills as an integrating field between natural sciences, reading comprehension, and textual production, in response to the low levels achieved by this educational institution in the Saber tests in the last five years. The qualitative methodology used allowed approaching contextual reality through reflections on pedagogical practices.
Özel Gereksinimli Çocuğa Sahip Ebeveynlerin Okul Rehberlik Servisinden Beklentileri İle İlgili Görüşleri
Authors: BENGİSOY Ayşe , YILMAZ İbrahim
Published: February 2019

Bu
araştırmada, Gazimağusa bölgesinde özel gereksinimli çocuğa sahip ebeveynlerin
okul rehberlik servisinden beklentilerinin belirlenmesi amaçlanmıştır.
Araştırmada ebeveynlerin rehberlik servisinden beklentilerini belirlemek için
hazırlanan yarı yapılandırılmış görüşme soruları kullanılmıştır. Çalışmada
Gazimağusa Özel Eğitim Merkezinde kayıtlı 68 öğrenci ebeveyninden 7 kadın, 5
erkek toplam 12 ebeveynle görüşme yapılmıştır. Araştırmada elde edilen
verilerin, betimsel analiz yöntemi kullanılarak değerlendirilmesi yapılmıştır.Araştırma
sonucunda ebeveynlerin, okul rehberlik servisinden beklentileri incelendiğinde;
rehberlik servisiyle düzenli görüşebilme, kaygıları gidermeye yönelik destek,
sosyal etkinliklere katılım, okul personeli çocuk ve ailelerin katılımıyla
gerçekleşecek etkinliklerin yapılması, ailenin tüm üyelerini bilgilendirmeye
yönelik etkinlikler, bilgi ve deneyim paylaşımının yapılabileceği ortam, kurum
çalışanları ve veliler arasında iletişim ve işbirliği, ekonomik durumu düzeyi
ailelere yönelik yardımsever kişiler ve yardım kuruluşları ile bağlantı
kurulması, aile eğitimlerinin, çocuğun ihtiyacına göre belirlenerek düzenli ve
sistemli yapılması, gereksinimleri ortaya cıkmıştır. Ebeveynlerin çocuklarına
yönelik beklentileri incelendiğinde, öğretmen, sınıf ve sınıf arkadaşlarının
belirlenmesinde çocuklarının ve kendilerinin görüşlerinin alınması, çocuğun gün
içinde daha uzun süre okulda kalması ve tatillerin kısa tutulması, çocuğun
güvenini artırıcı ve korkularını giderici etkinliklere ağırlık verilmesi,
çocukların okul ortamından farklı ortamlara götürülmesi ve bununla ilgili
davranışlar kazanması gereksinim olarak belirlenmiştir. Ebeveynlerin çevreye
yönelik beklentileri ise, özel gereksinimli bireyler hakkında çevre bilincinin
artırılmasına yönelik, toplantı, seminer ve kitle iletişim araçları
kullanılarak uzman kişilerce yapılacak bilgilendirmeler şeklinde
belirlenmiştir.
Ebeveynlerin Çocukların Bilişim Teknolojileri Kullanımına Yönelik Tutumları Üzerine Bir Ölçek Geliştirme Çalışması
Authors: TÜREL Yalın Kılıç , GÜR Duygu
Published: February 2019

Okul
çağındaki bireylerin bilişim teknolojileri kullanımı gerek öğretmenler gerekse
veliler tarafından önemli bir problem olarak görülmektedir. Özellikle ergenlik
öncesi dönemde bu problemin veliler tarafından nasıl algılandığının
değerlendirilmesi araştırmanın çıkış noktasını oluşturmaktadır. Dolayısıyla bu
araştırmanın amacı, ortaokul öğrenci ebeveynlerinin çocuklarının bilişim teknolojileri
kullanımlarına yönelik tutumlarını, davranışlarını, denetimlerini ve
getirdikleri sınırlamaları ortaya koyacak bir ölçek geliştirmektir. Ölçek
geliştirme sürecinde öncelikle literatür taraması yapılarak ve uzman görüşü
alınarak ölçek formu oluşturulmuş, uygun örnekleme yöntemi ile belirlenen iki
devlet okulunda 6. ve 7. Sınıflarda öğrenim gören 294 öğrenci ebeveynlerine
yönelik pilot uygulama gerçekleştirilmiş ve elde edilen veriler analiz edilerek
ölçek üzerinde düzeltmeler yapılmıştır. Yapılan bu analiz işlemleri sonucunda üç faktörlü ölçek yapısı
oluşturulmuş (Eğitimde Kullanımı, Denetim ve Sınırlamalar, Olumsuz Etkileri),
bu üç faktöre ilişkin toplam varyansın %52,07; her bir faktör için ölçeğin
Cronbach Alpha güvenirlik katsayısının sırasıyla 0,83, 0,80 ve 0,70 olduğu tespit edilmiştir. Daha
sonra 354
öğrenci ebeveynine yönelik ikinci uygulama gerçekleştirilerek doğrulayıcı
faktör analizi yapılmış ve yapısal eşitlik modelinde yer alan uyum
indeksleri değerleri incelenerek maddelerin genel olarak kabul edilebilir ve
iyi düzeyde uyum gösterdiği görülmüştür. Yapılan bu faktör analizi ve
güvenirlik çalışmaları ardından Likert tipinde 18 maddeden oluşan ölçeğe son
şekli verilmiştir. Bu ölçeğin ebeveynlerin çocuklarının
teknoloji kullanımlarına yönelik tutum ve davranışlarının üç farklı boyutta ele
alınarak kapsamlı bir şekilde irdelenmesini sağlayacak yeterlikte olduğu
söylenebilir.
Olumlu Annebabalık Eğitimi Programı’nın (Positive Parenting Program-Triple P) Ailenin Ruh Sağlığına Etkisi
Authors: ARKAN Burcu
Published: February 2019

Araştırmanın amacı montessori okulunda okuyan çocukların ebeveynlerine uygulanan Triple P-Olumlu Anne Babalık Eğitim Programı’nın ebeveyn tutumu, ebeveyn ruh sağlığı ve çocuk davranışına etkisini incelemektir. Araştırma yarı-deneysel olarak planlanmıştır. Araştırma Bursa’da özel bir anaokulunda yapılmıştır. Eğitimler Aralık 2014-Ocak 2016 tarihleri arasında gerçekleştirilmiştir. Araştırmanın örneklemini araştırmaya katılmayı kabul eden, 3-6 yaş aralığında çocuğu olan, 74 anne baba araştırmanın örneklemini oluşturmuştur. Araştırmada veriler Sosyo-Demografik Veri Toplama Formu, Aile Hayatı ve Çocuk Yetiştirme Tutumu Ölçeği, Genel Sağlık Anketi–12, Güçler ve Güçlükler Anketi, Memnuniyet Anketi ile toplanmıştır. Anne babalara 8 hafta süren Olumlu Anne-Babalık Programı (Group Triple P) uygulanmıştır. Eğitimden sonra toplanan veriler t-testi analizi kullanılarak değerlendirilmiştir. Montessori okulunda okuyan çocukların ebeveynlerine uygulanan Triple P-Olumlu Anne-Babalık Eğitim Programı anne baba tutumlarını, ebeveynlerin ruh sağlığı düzeyini değiştirmede etkili olduğu, çocukların problemli davranışlarını azalttığı saptanmıştır. Elde edilen sonuçlar daha büyük örneklemde, randomize kontrollü ve ileriye dönük izlemin yapıldığı yeni çalışmaların planlanması, Triple P-Olumlu Anne-Babalık Eğitim Programı ve ülkemizde mevcut uygulanan programların sonuçların karşılaştırıldığı araştırmaların yapılması ve bu programın tüm ülkede yaygınlaştırılması önerilmektedir.
İlkokul Öğrencilerinin Matematik Kaygılarının İncelenmesi Ve Metaforik Algılarının Sınıf Öğretmenleri İle Karşılaştırılması
Authors: ÖZDEMİR Emine , SEZGİNSOY ŞEKER Burcu
Published: February 2019

Bu çalışmada karma araştırma deseni kullanılarak yöntem çeşitlemesi yoluna gidilmiştir. Araştırmanın çalışma grubunu Balıkesir ili Karesi merkez ilçesine bağlı basit tesadüfi örnekleme yöntemi ile seçilen iki ilkokulda yer alan 150 dördüncü sınıf öğrencisi ve 15 sınıf öğretmeni oluşturmuştur. Nicel veriler Matematik Kaygısı-Endişesi Ölçeği ile, nitel veriler açık uçlu sorulardan oluşan bir görüşme formu ile toplanmıştır. Araştırmanın sonuçlarına göre; öğrencilerin cinsiyet/okul değişkenlerine göre matematik kaygılarının farklılık göstermediği, öğrencilerin ve öğretmenlerin matematiğe ilişkin metaforik algılarının benzerlik gösterdiği, öğrencilerin en fazla matematiğe yönelik olumlu tutum geliştirme alt teması için metafor ürettiği ve matematiğe ilişkin algılarını en çok oyun, bulmaca, eğlence, işlem, ders, uzay, yaşam metaforları ile açıkladıkları tespit edilmiştir. Öğrencilerin matematik kaygılarının nedenlerine ilişkin görüşlerinin yaklaşık % 25’ inin öğrenci-ilişkili, % 75’ inin öğretim-ilişkili olduğu tespit edilmiştir. Sınıf öğretmenlerinin matematiğe ilişkin olumlu görüşe sahip oldukları ortaya konmuştur.
Göçmen Olan ve Olmayan Annelerin Tutumları İle Çocuklarının Medya Kullanımının Çeşitli Değişkenler Açısından İncelenmesi
Authors: ŞAHİN ZETEROĞLU Elvan , HALAVURT Hande
Published: February 2019

Bu çalışmanın amacı, Türkiye’de yaşayan göçmen olan ve olmayan annelerin tutumları ile çocuklarının medya kullanım durumlarının çeşitli değişkenler açısından incelenmesidir. Çalışmada betimsel tarama yöntemi kullanılmıştır. Çalışma grubunu çocukları okulöncesi eğitim kurumuna devam eden göçmen 130 anne ve göçmen olmayan 130 anne olmak üzere toplam 260 anne oluşturmaktadır. Çalışmada anne tutumlarını ölçmek için “Anne-Babalık Stilleri ve Boyutları Ölçeği” (Parenting Styles and Dimensions Questionnaire- PSDQ) kullanılmıştır. Okulöncesi dönem çocukların medya kullanımına yönelik davranışlarını belirlemek için araştırmacılar tarafından hazırlanan anket kullanılmıştır. Hazırlanan ankette, okul öncesi dönem çocuklarının hangi medya araçlarını kullandıkları, kullandıkları medya araçlarını ne sıklıkla kullandıkları, annelerin çocuklarının medya kullanımı ile ilgili görüşlerini belirlemeye yönelik sorular yer almaktadır. Göçmen olan ve olmayan annelerin tutumları ile çocukların medya kullanımları arasında istatistiksel olarak anlamlı bir farklılık bulunmamıştır. Anlamlı bir farklılık olmamakla beraber göçmen ailelerin medya kullanımı konusunda daha dikkatli oldukları söylenebilir.
Beyin Temelli Öğrenmenin Fen Bilimleri Dersinde Öğrencilerin Akademik Başarıları Ve Başarıya Yönelik Duyguları Üzerine Etkisi
Authors: ÜÇÜNCÜ Gökşen , SAKIZ Gönül
Published: February 2019

Beyin temelli öğrenme, öğrenme sürecinde duyular kadar duyguların da önemini ele alan yaklaşımlardandır. Bu çalışmada, beyin temelli öğrenmeye uygun olarak tasarlanmış bir öğrenme ortamında gerçekleştirilen fen bilimleri dersinin, ilkokul öğrencilerinin akademik başarıları, başarı duygularından dersten zevk alma, dersten sıkılma ve dersten endişe duyma düzeyleri üzerine etkisinin incelenmesi amaçlanmıştır. Cinsiyete bağlı potansiyel farklılaşmalar da ayrıca incelenmiştir. Araştırma deney ve kontrol gruplu yarı deneysel desenin nitel veriler ile desteklendiği karma desene göre tasarlanmıştır. Çalışma, 2015-2016 yılı güz döneminde İstanbul ili Beykoz ilçesinde yer alan bir devlet ilkokulundaki iki dördüncü sınıfın fen bilimleri dersi Maddeyi Tanıyalım Ünitesi’nde toplam 68 öğrenci üzerinde gerçekleştirilmiştir. Nicel veriler Split-plot ANOVA; nitel veriler ise içerik analizi ile analiz edilmiştir. Çalışma sonucunda, deney ve kontrol grupları arasında akademik başarı düzeyinde deney grubu lehine anlamlı bir farklılaşma bulunmuştur. Dersten zevk alma düzeyinde anlamlı bir farklılaşma tespit edilemezken, dersten sıkılma ve endişe duyma düzeylerinde ise deney grubu lehine negatif yönde anlamlı bir farklılaşma tespit edilmiştir. Deney grubu öğrencilerinde cinsiyet değişkenine bağlı yapılan analizde, dersten sıkılma ve endişe duyma düzeylerinde anlamlı bir değişim bulunmazken, dersten zevk alma düzeyinde erkek öğrenciler lehine pozitif yönde bir farklılaşma tespit edilmiştir. Bu sonuç nitel veriler ile detaylandırıldığında, genel olarak öğrencilerin dersleri eğlenceli bulmakla birlikte bazı kız öğrencilerin sınıf ortamını düzensiz buldukları, sıra düzeni olan sınıf ortamını daha olumlu gördükleri ve bunun sonucu olarak ortamdan hoşlanmadıkları; erkek öğrencilerin ise sınıf içindeki hareketli ortamdan hoşlandıkları sonucuna varılmıştır. Bununla birlikte hem kız hem erkek öğrenciler öğrenme ortamının etkileşim odaklı olduğuna, öğretmenin olumlu bir sınıf iklimi oluşturduğuna ve ders içindeki etkinliklerin zorlayıcı ancak başarılabilir olduğuna yönelik görüş bildirmişlerdir. Bu durumun deney grubundaki öğrencilerin dersten sıkılma ve endişe duyma düzeylerinin düşük olmasına katkı sağladığı düşünülmektedir.
Relapse Following Allogeneic Hematopoietic Cell Transplantation for Acute Myeloid Leukemia Apparently Due to Somatic Cell Evolution via Epigenetic Variation and Immune Selection
Authors: Greenspan Neil S.
Published: February 2019

In this brief commentary, I discuss a recently published study that documents the role of immune escape in relapse of acute myeloid leukemia (AML) after hematopoietic cell transplantation (HCT). Of particular interest, the mechanism identified by the authors for the ability of the malignant cells to evade destruction by host T cells is the loss of cell surface expression of HLA class II molecules based on processes other than mutation. The authors labeled this mechanism for altered cell surface display of HLA class II antigens “epigenetic.” This study should be of strong interest for immunologists, oncologists and even specialists in infectious diseases for several reasons. First, the results extend the range of examples for which epigenetic mechanisms can play a critical role in resistance to therapy in oncology or infectious disease. Second, findings relating to decreased cell surface display of HLA class II molecules motivate investigation of novel approaches using cytokines to increase the numbers of HLA class II proteins on malignant myeloid cell membranes and reduce the extent of immune escape by these cells. Third, the data presented suggest experimental directions intended to clarify detailed molecular mechanisms underlying the cases of AML post-HCT relapse and raise questions relating to why some mechanisms of somatic cell evolution and not others are operative in different clinical settings.
Clinico-Histopathological and Immunohistochemistry Study of Ruminant’s Cutaneous Papillomavirus in Al-Muthanna Veterinary Hospital/ Iraq
Authors: Al-Dabhawi Ahmed H. , Al-Salihi karima A. , Erzuki Ibrahim A. , Ali Tho Alfiqar H.
Published: February 2019

Background: Papillomaviruses (PVs) are double-stranded DNA viruses and are more common in skin of ruminants in Iraq. A P53 (tumor suppressor protein) reveals an essential role in cell cycle control. This study aimed to describe the clinical, histopathological and immunohistochemical aspects of naturally occurring cutaneous ruminant’s papillomatosis. Methods: Samples were collected from totally, 10 animals (3 cattle, 3 goats and 4 sheep) with multiple papillomatosis lesions. Results: Clinically, exophytic multiple, cauliflower-like growths (warts) of varying sizes (0.5-11 cm) were found in different areas of the animal’s bodies. Histopathological features were various degrees of koilocytosis, ortho and parakeratotic, hyperkeratosis, hypergranulosis in granular layer and acanthosis. Immunohistochemical (IHC) investigations revealed some nuclei in the granular and basal layers of the epidermis with intense positivity for papillomavirus antigen. All tumor samples were positive for p53 expression that appeared as a strong cytoplasmic and perinuclear staining mainly in the basal and parabasal layers. Conclusion: this study described the papillomavirus lesions in bovine, ovine and caprine, that located in different anatomical areas with minor variations in histopathological features. The tumor samples showed positive results for PV antigen and P53 expression that considered as the useful markers in the diagnosis of cutaneous papilloma.
ANTI-PROLIFERATIVE AND ANTIOXIDANT ACTIVITY OF FOUR INDIGENOUS SOUTH AFRICAN PLANTS.
Authors: Rademan Sunelle , Anantharaju Preethi G. , Madhunapantula SubbaRao V. , Lall Namrita
Published: February 2019

Background: Cancer is a major cause of death worldwide. Limitations of current cancer therapies necessitate the search for new anticancer drugs. Plants represent an immeasurable source of bioactive compounds for drug discovery. The objective of this study was to assess the anti-proliferative and antioxidant potential of four indigenous South African plants commonly used in traditional medicine. Materials and Methods: The anti-proliferative activity of the plant extracts were assessed by the 2,3-Bis-(2-Methoxy-4- Nitro-5-Sulfophenyl)-2H-Tetrazolium-5-Carboxanilide (XTT) assay on A431; HaCat; HeLa; MCF-7 and UCT-Mel 1 cells and sulforhodamine-B (SRB) assay on HCT-116 and HCT-15 cell lines. Antioxidant activity was determined using the 2, 2-diphenyl-1-picrylhydrazyl (DPPH), nitric oxide (NO) and superoxide scavenging assays. Results: Three of the plant extracts (Combretum mollefruit, Euclea crispa subsp. crispa leaves and stems and Sideroxylon inerme leaves and stems showed anti-proliferative activity on the A431 cells with IC50values ranging between 26.9 - 46.7 μg/ml. The Euclea crispa subsp. crispa extract also showed anti-proliferative activity on the MCF-7 cell line (45.7 μg/ml). All of the plant extracts (Combretum molle leaves and fruit, Euclea crispa subsp. crispa leaves and stems, Sideroxylon inerme leaves and stems and Terminalia prunioides leaves and stems) showed DPPH scavenging activity with IC50 values ranging from 1.8 μg/ml to 11.5 μg/ml. Conclusion: These results indicate that the active extracts of Combretum molle, Euclea crispa subsp. Crispa and Sideroxylon inerme warrants further investigation to determine the mechanism of anti-proliferative activity against cancerous cells. These plant extracts also show potential for further evaluation in the prevention and treatment of cancer.
DUKKU AND BAEKAM SPRINGWATER INHIBIT THE UREASE ACTIVITY OF HELICOBACTER PYLORI
Authors: Choi SungSook , Lee HaeKyung , Kim JinWoo , Yu JiHan , Choi HyunHo , Kim HyungKeun , Kim SangWoo , Chae Hiun Suk
Published: February 2019

Background: Springwater (SW) contains many kinds of minerals such as sodium, potassium and copper. These metallic ions may influence the activity of metallo-enzymes such as urease via competitive inhibition. In this study, we investigated the effect of SW on the inhibition of Ni-containing urease activity, which is essential for the colonization of Helicobacter pylori (H. pylori) in the human stomach.Materials and Methods: We studied the growth inhibition of H. pylori by SW. We evaluated ammonia production to detect urease activity and performed western blot analysis of UreA and UreB for enzyme production.Results: SW had no significant effect on bacterial growth. Western blot analysis also showed that SW did not affect the translation of UreA and UreB, but it significantly reduced the urease activities of the Jack bean as well as that of H.pylori from 50 to 75%.Conclusion: These results might indicate that the consumption of SW may prevent the colonization of H. pylori andameliorate the toxic effect on gastric mucosa via the inhibition of urease activity.