bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of incidence and prevalence of hypokalemic periodic paralysis
Authors: Dungdung Ajith , Jalawadi Vishwanath Malkappa , Yadav Upendra Prasad
Published: February 2019

Background: Hypokalemic periodic paralysis (HPP) is a rare autosomal dominant channelopathy characterised by muscle weakness or paralysis when there is a fall of potassium level in the blood. In individuals with mutation, attack begins during adolescents and most commonly occurs after sleep on awakening, rest after strenuous exercise, high carbohydrate diet and meal with high sodium content. This study was conducted to analyse the age of incidence and prevalence of HPP with various clinical presentations, diagnosis and its effective treatment.Methods: A retrospective analysis of 50 patients of Hypokalemic periodic paralysis was analysed in tertiary care centre “Rajendra institute of medical science” Ranchi, Jharkhand, India, with reference to its clinical presentation, age of incidence and prevalence with laboratory parameters and treatment outcomes.Results: Incidence of attack is more common in men between 26-35 years of age. Sudden onset of flaccid quadriparesis was the most common presentation with history of high carbohydrate diet on the background of strenuous work during summer season. Around 60% had similar history of attacks in the past and most of the patients had serum potassium levels between 2.1-3.0mEq/L. Electrocardiography (ECG) abnormalities associated with hypokalemia had been observed in 90% of patients, and also significant clinical, biochemical changes have been observed as well.Conclusions: Early diagnosis not only helps in definitive management with potassium replacement, but also prevents patient going for life threatening respiratory failure.  Patients recover completely without any clinical sequelae. Therefore, it is imperative for physicians, particularly those working in acute care settings, to be aware of this condition. Further management depends on the cause, frequency of attacks, severity of symptoms and the duration of the illness.
Early postoperative outcomes of dunking pancreatojejunostomy
Authors: Shiva Kumar Shashikiran M. , Rajan Ramesh , Sadasivan Nair Sindhu R. , Natesh Bonny , S. Raviram
Published: February 2019

Background: There is no gold standard method for pancreatico-enteric reconstruction.  In our department, dunking pancreatojejunostomy (DPJ) and Duct to mucosa PJ technique are done as per surgeon’s choice.  In this study, authors evaluate the early postoperative outcomes following DPJ based on ISGPS (2007).Methods: A Retrospective analysis of prospectively collected data from January 2008 to December 2015. Detailed information on these patients was maintained on a prospectively held computerized database. Routine drain amylase estimations are being done on POD 3and 5 for all patients undergoing pancreatic resections and on all subsequent days if output is suggestive of pancreatic fistula. Details of patients who have undergone pancreatic resection with duct to mucosa type of pancreato-intestinal anastomosis during the same period (64 patients) were also collected prospectively and analysed. DPJ and Duct to mucosa groups were not comparable with respect to age, duct size, pancreatic gland texture and co-morbidities. Hence direct comparison between the two groups has not been carried out.Results: A total of 75 of 139 pancreatic resections with pancreatointestinal anastomosis who had dunking PJ and fulfilled the study criteria were analysed; none were excluded for analysing early outcomes. 19 out of 75 (25.5%) developed grade ‘A’ POPF, five out 75 (6.6%) developed Grade ‘B’ POPF and three out 75 (3.3%) developed Grade ‘C’ POPF. 20 out 75 (26.6%) had grade ‘A’ DGE, five out of 75(6.6%) had grade ‘B’ DGE. PPH occurred in four out of 75 (5.3%), two out of four were early PPH, one was managed by coiling and other by re-laparotomy, two were late PPH both managed by coiling of the pseudo aneurysms. There was no 30-day mortality.Conclusions: Dunking (invagination) pancreatojejunostomy has acceptable early outcomes with clinically significant/relevant postoperative pancreatic fistula, delayed gastric emptying and post pancreatectomy haemorrhage rates of 10.4% (grade B and C), 33.2% and 5.3% respectively. The outcomes are comparable with those of Duct-to-Mucosa PJ mentioned in literature.
MSCT imaging of various shunts and grafts in post operative cases of congenital heart diseases
Authors: Patel Dinesh L. , Rana Yashpal R. , Sheth Megha M. , Patel Samir G. , Garachh Milin N. , Parikh Kamal K.
Published: February 2019

Background: Multi-slice computed tomography (MSCT) plays an important role in clinical practice in assessing post-operative patients with complex CHD when echocardiography is not contributory.  Despite the great capabilities of MR imaging for anatomic and functional assessment of the heart, it is time-consuming and may require a lengthy period of patient sedation; hence its use in seriously ill or uncooperative patients is often limited. CT has the advantages of widespread availability and short acquisition times. It is imperative for a radiologist to be aware of various palliative as well as corrective procedures and their various imaging findings. Aim of this article is to demonstrate and make one aware of various checklists and imaging findings in paediatric patients who have undergone various shunts and grafts at our tertiary cardiac care centre, their immediate as well as long term complications.Methods: We studied a total of 100 paediatric patients (<12 years old), who had undergone some sort of palliative or corrective shunt or graft placement, on MSCT during the period 2014 to 2018 at our tertiary cardiac care centre.Results: We try to outline details of various shunts and grafts used in congenital heart diseases correction, MSCT technique and imaging appearances and appearances of abnormal post-operative findings.Conclusions: Advances in computed tomography (CT) scanners and electrocardiographic gating techniques have resulted in superior image quality of the aorta and pulmonary arteries for evaluating postoperative congenital heart disease. MSCT is an excellent non-invasive modality for post-operative evaluation of various shunts and grafts.
Study on factors affecting mortality in nonagenarian patients in orthopaedic surgery
Authors: Edipoglu Ipek Saadet , Chousein Chasan Memet , Balci Halil Ibrahim , Buget Mehmet Ilke
Published: February 2019

Background: With medicine advancing, population is aging in the world. We encounter elderly patients in operating rooms more often. In this study, the aim was to investigate mortality and morbidity rates of patients 90 years of age or older within 1 year from the date of operation due to fractures.Methods: The study was performed retrospectively in the 3rd stage health institution. All patients that had fracture operation in the operating rooms of the orthopaedics department between 2011 and 2017 and that were 90 years or older on the day of operation were included in the study. Patients who were operated twice were excluded from the study.Results: Around 83 patients of which were included in the study. The mean age of the patients was 92.89±2.84. In-hospital mortality rate was 8.4%. The mortality rate within 3 months from the operation was 18.1%, 25.3% within 1 year, and 61.4% within 5 years or above. Author found that the mean survival period for the total of the surviving patients was 23.87±18.96 months. Author found that there was a meaningful causation between morbidity developing post-operation and in-hospital mortality, 3-month mortality, and 1-year mortality (p<0.05).Conclusions: Author think that it was important to recognize the fact that despite being more vulnerable, patients 90 years of age or older have a significant life expectancy post-hospital discharge. Author think that post-operation acute morbidity affects mortality rates and it was important to avoid factors that may cause acute morbidity in patients 90 years of age and older.
Patient satisfaction of outpatient department at ESIS hospital, Nagpur, India
Authors: Deshmukh Meena A. , Upadhye Jayshree J.
Published: February 2019

Background: Employee state insurance scheme (ESIS) is a multidimensional social security system providing medical facilities to the insured persons and their family through large network of hospitals and dispensaries all over India. The present study was done to measure the satisfaction of OPD (Outpatient Department) patients.Methods: A descriptive cross-sectional study was conducted in ESI Hospital, Nagpur, Maharashtra, India on 500 patients attending OPD. Patients were approached at the end of their OPD visits to know their perceptions towards the public health facilities, during the months of September and October 2017. Data collected was analyzed.Results: In present study, out of 500 patients, 210 (42%) said that crowd was average, 270 (54%) were satisfied with queue system, 390 (78%) were satisfied with the availability of drugs, 380 (76%) were satisfied with the behaviour of pharmacist.205 (41%) patients said it was not overcrowded, 310 (62%) patients were happy with the behaviour of registration clerk, 330 (66%) were satisfied with the seating arrangements for the patients and attendants, 265 (53%) were satisfied with the cleanliness, 205 (41%) were satisfied with the condition of toilets.390 (78%) patients said that doctor was available, 270 (54%) said that waiting time was less, 325 (65%) said that doctor listened to the problem attentively, 435 (87%) said that the doctor explained nicely about the disease while 425 (85%) were satisfied with the time given by the doctor.Conclusions: Almost half of the patients were satisfied with the registration facilities, basic amenities, service by doctor and pharmacy services. Mostly, patients chose this hospital as it was free for them due to their insurance and as it was near their house. Still, there is scope for improvement.
Cutaneous tumours of vascular origin: two rare entities
Authors: Prakash Annu E. , Sulochana Gopalan , Thankappan Thundiparampil , Oommen Annamma M.
Published: February 2019

Skin and subcutaneous tissue are the most common location of benign and malignant vascular tumors. The benign or malignant nature of the lesion may not always be identified clinically because of the varying presentations. The histology of the lesion, especially in malignancies may not exhibit definite vascular pattern.  In such cases, clinical presentation has to be correlated with histopathological picture as well as immunohistochemical characteristics to reach a specific diagnosis. Judicious use of immunohistochemical markers proves to be invaluable.  Two rare cases of cutaneous vascular tumors which presented at our institution are cited, the diagnosis of which involved correlation of these modalities.
Quilt/cARTography: Using Craftivism to Explore Food Insecurity on a College Campus
Authors: Reagan Allison Ray
Published: February 2019

Quilt/cARTography emerged from an arts-based inquiry method for research dissemination. I used quilt-making as an embodied craft and metaphor to illustrate how crafting research is similar to piecing together neighborhood food environment data in an undergraduate social statistics course. As an innovative pedagogical tool, cARTographical quilts transform data into accessible tactile mediums that cross disciplinary boundaries and educational levels to explore hunger on a college campus.
The Quilt Speaks: Crafting Gender and Cultural Norms in Hawaii
Authors: Kimokeo-Goes Una
Published: February 2019

When protestant missionaries first arrived in Hawaii in the early nineteenth century one of their first concerns was the nudity of the indigenous population and the introduction of cloth and sewing was an early priority. Their hope was that sewing would help turn these savages into appropriate Christians. However, with the introduction of fabric, thread, and metal needles, unexpected skills developed. Feminist scholars have often recognized that so-called “women’s crafts” hold important values. Quilting allows women to work collectively, to reflect on cultural and national values, and to offer political challenges. Analyzing the history of sewing in Hawaii and using the quilts themselves as texts, we can understand how Hawaiian quilts were able to fulfill many of the missionaries’ norms about Christian women, but also subvert aspects of the missionary belief system. Although the West gained influence in the islands, the Hawaiian quilt continued to voice the beliefs of native identity.
Pathology: A Diffractive Encounter of Machine/Body
Authors: Gullion Jessica Smartt
Published: February 2019

I’ve been thinking about poems and about college as rhizomes (Deleuze and Guattari 1987), and as diffractive techniques (Barad 2007; Gullion 2018) for thinking about the social world. This project emerged as a way for me to understand my embodied experience of abdominal surgery. I began with the creation of an art journal, and then wrote a poem to accompany the images. I created the images and the text while thinking about my experience of undergoing surgery and diffracting that through Haraway’s (2016) ideas about cybernetics and machine bodies.
The Needle as Medium: Using Embroidery to Speak to Ghosts
Authors: Rogers Christine
Published: February 2019

As an adoptee, I am haunted by what Lifton (2009) calls the Ghost Kingdom, a place filled with the spectres of the ancestors I have been disconnected from. Derrida (1993), with his notion of hauntology, tells us that we must learn to speak to ghosts, and that by doing so we will learn to live. I am on a journey to speak to the ancestors of my birth father who were Ngāi Tahu (Māori), and through this, to make meaning in my present and future (Carsten, 2000). I am using embroidery as a medium to speak to, and with, my great-great-grandmother, Elizabeth (Fitzpatrick & Bell, 2016), working in a craft vernacular that would have been deeply familiar to her. This paper will discuss how the methodology of autoethnography, informed by adoption scholarship and feminist studies of craft, has led me to stitch work that engages with craft tradition, and speaks to loss, identity and belonging.
Crafting Identities: Folding and stitching the self
Authors: Grushka Kathryn , Van Gestel Michelle , Skates Clare
Published: February 2019

This article tells the story of two fibre artists, Kathryn and Clare, who craft their intergenerational autoethnographic insights through the creation of textile artworks. It explores the collaborative journey of both artists, who came together to create an exhibition titled “Stitching Identities.” The artists have embraced the Deleuzian idea of the folding act in artmaking as a process of continuous and complex revealing of narratives and intuitive insights about self, a bringing of the inside to the outside and into material aesthetic form. It also embeds the writing of a colleague artist/educator, Michelle,  who worked with them on the writing of the article and in addition draws on the critical, reflective and philosophical writing of education theorist Inna Semetsky (https://columbia.academia.edu/InnaSemetsky) who wrote the “Stitching Identities” exhibition catalogue essay. Their artmaking is their method, a way of crafting for meaning, a way to research and explore the self and the formation of their current identities.
Effect of 8-week Swimming training and garlic intake on serum ICAM and VCAM adhesion molecules in male obese rats.
Authors: ریاحی ملایری شاهین , کاکا عبداله شیرازی سولماز , بهدری رضا , موسوی ساداتی سید کاظم
Published: February 2019

مقدمه: تمرین شنا و مصرف سیر می توانند از عوامل پیشگیری کننده از بیماری عروق کرونر باشد. بنابراین، هدف این پژوهش تاثیر هشت هفته تمرین شنا و مصرف سیر بر مقادیر intercellular cell adhesion molecule (ICAM)  و vascular cell adhesion molecule (VCAM)  سرمی در موش های نر چاق است.
روش بررسی: در این مطالعه تجربی، 28 سر موش صحرایی نر نژاد ویستار (میانگین وزن۹/۵ ±۲۸۱ گرم) به طور تصادفی به چهار گروه (کنترل، مکمل سیر ، تمرین شنا، تمرین شنا + مکمل سیر) تقسیم شدند. سپس گروه های تمرین به مدت 8 هفته و هر هفته 3 جلسه تحت تاثیر تمرین و گروه های دریافت کننده مکمل و تمرین+ مکمل، روزانه یک میلی لیتر عصاره محلول سیر به ازای هر کیلوگرم وزن بدن دریافت کردند. داده ها با استفاده از نرم افزار آماري  SPSS v 16و روش آماری تحلیل واریانس یک طرفه و سطح معنی داری (۰۵/۰ ≥ P) ارزیابی شد.
نتایج: یافته های پژوهش نشان داد هشت هفته تمرین و مصرف سیر بر مقادیرICAM موش‌ها کاهش معنی‌داری داشت  (05/0 >P). با این حال بر مقادیر VCAMموش ها نر چاق تاثیر معنی‌داری نداشت (05/0<P).
نتیجه‌گیری: به نظر می‌رسد ترکیب دو عامل تمرین شنا و مصرف مکمل عصاره سیر یا تمرین ورزشی به تنهایی، به کاهش سطوح مولکول های چسبان می انجامد و استفاده از آن توصیه می شود. هرچند به منظور مشخص شدن  تاثیر آن به یژوهش های بیشتری در نمونه های انسانی نیازمندیم.
Hypopituitarism Post-Traumatic Brain Injury
Authors:   Yuliana ,   Department of Anatomy, Udayana University, Bali, Indonesia
Published: February 2019

Traumatic brain injury often causes disability and death among adults and children. The injury may have a significant long-lasting effect to the neuroendocrine system. One of the most common effects is hypopituitarism. It can affect the quality of life and increase healthcare burden. This review is made to understand the hypopituitarism post-traumatic brain injury. The review was done by searching journal literature published in the last 10 years. Hypopituitarism can be found in the acute or chronic phase. Sometimes patients come with specific symptoms such as amenorrhea, infertility, precocious puberty, or even diabetes insipidus. A severe case of Addisonian crisis patient may end in an intensive care unit. Hypopituitarism post-traumatic brain injury will impair rehabilitation. Therefore, traumatic brain injury patient should be assessed for pituitary function examination in 6-12 months post injury to prevent further deterioration and improve the quality of life.
China as the Strategic Competitor in the Debate on TPP in the United States
Authors: Matera Paulina
Published: February 2019

The Trans-Pacific Partnership (TPP) was negotiated with participation of the U.S. representatives from 2008. It was discussed not only in terms of the economic consequences of it. The proponents of signing TPP claimed that it would strengthen the alliances in Asia-Pacific region, curtail the Chinese influences and let the U.S. establish the global trade rules for the future. The debate on this issue took place in the Congress, also the front runners of the presidential elections of 2016 expressed their standpoints. The attitude of public opinion will be also presented as well as the position of Donald Trump which resulted in the withdrawal of the United States from the agreement once he became the President of the U.S.
The institutional context of rationality
Authors: Godłów-Legiędź Janina
Published: February 2019

In the last three decades, mainstream economics has been influenced by authors associated with new institutional economics and new behavioral economics. The dispute over rationality as an assumption of economic theories is becoming particularly evident and is taking new forms. The aim of this article is to examine the connections between the institutional and behavioral approaches as well as between researchers’ ideas as to what rationality is and their beliefs regarding an optimal economic system. It will demonstrate that so-called behavioral and institutional economists have more in common than not. Institutions play a key role in the arguments of behavioural economists, whereas the argument of institutional economists is almost always based on the issue of human cognitive abilities and emotions. What directly links the two trends is the attention given to the rationality of actions that an individual takes as a premise of economic choices and as an assumption of economic theories. Differences in views relate to the understanding of rationality and exist within the framework of behavioral economics itself. At the core of the dispute is the distinction between two concepts of rationality: constructivist and ecological. This distinction serves as a starting point for the second matter discussed in the article. The author argues that the concept of constructivist rationality is related to the vision of the top-down creation of social order, while the proponents of the ecological approach to rationality stress the importance of market institutions. Interestingly, from the perspective of cognitive psychology and the heuristics of Daniel Kahneman, it can be presumed that the convictions of a scholar about the “ideal system” can influence his or her arguments on the essence of human rationality.
Causality and inference in economics: An unended quest
Authors: Maziarz Mariusz
Published: February 2019

The aim of this article is to point to the unsolved research problems connected to causation in the philosophy of economics. First, the paper defines causation and discusses two notable approaches, i.e. the realist theory of causation and the instrumentalist theory of causation. Second, it offers a review the current research activity focusing on the problem of causation in economics. Third, it discusses several case studies. On the grounds of comparison of the research practice of economists and the current issues undertaken by the philosophers of economics, the paper concludes that there is a gap between the research practice and the normative methodological analyses and indicate the research questions that need to be addressed.
Utilitarianism: Doctrinal analysis evolution of thought
Authors: Górecki Olgierd
Published: February 2019

Utilitarianism as an innovative and original stream of ethical and political thought has enriched the philosophical discourse of the last three centuries. Utilitarian thinkers claim that maximization of pleasure correlated with minimization of pain is the correct way to create an objective catalog of rules or behaviors that result in the formation of the highest utility for a society and its individuals. From a methodological perspective, there are differences among the utilitarian philosophers on issues such as: happiness, pleasure or utility guide to diametrical disaccord on an ethical or institutional area. The present analysis of the utilitarian thought represents some of the interesting differences in interpretation of this doctrine. However, utilitarianism does not include logical or intellectually strong arguments for the protection of an individual’s rights against the interest of people at large. Thus, this doctrine during the 18th and the 19th centuries postulated the political egalitarianism. Nowadays, utilitarianism has lost its strong ethical position. In the past, utilitarianism was a political instrument to protect most of the people in a society from an arbitrary reigning of small elite groups. In recent times, this thought legitimizes the coercion of the majority will regardless of the fact that other smaller groups may have different political views. Such thinking allows to objectify the individual man which is only identified with instrumentality to maximization of utility. The author analyzes the writings of Jeremy Bentham, John Stuart Mill and Herbert Spencer, and compares their doctrines with the scientific literature and forwards a basic thesis on the universal principles of utilitarianism. The author argues that the actual rules of political ethics under conditions of limitation theory of utility append the law of inviolability of the natural rights of an individual.
МИНЕРАЛОГИЯ И ГЕОХИМИЯ ТОНШТЕЙНОВ В УГЛЯХ БЕЙСКОГО МЕСТОРОЖДЕНИЯ МИНУСИНСКОГО БАССЕЙНА
Authors: (Alexey V. Vergunov) Вергунов Алексей Викторович , (Sergey I. Arbuzov) Арбузов Сергей Иванович , (Victor M. Sobolenko) Соболенко Виктор Михайлович
Published: February 2019

Актуальность исследования обусловлена необходимостью оценки влияния вулканогенного пирокластического материала на формирование геохимического фона редких элементов в угле. Цель: изучить минералого-геохимические особенности тонштейнов и вмещающих углей черногорской свиты Бейского месторождения Минусинского бассейна. Объекты: тонштейны и вмещающие угли черногорской свиты Бейского месторождения Минусинского угольного бассейна. Методы: опробование угольных пластов черногорской свиты Бейского месторождения; химический состав определен методами масс-спектрометрии с индуктивно связанной плазмой (ICP MS), инструментальным нейтронно-активационным анализом, рентгенофлуоресцентным анализом; минеральный состав изучен методами оптической микроскопии, петрографического анализа, сканирующей электронной микроскопии, рентгеновской дифрактометрии. Результаты. Рассмотрены минералого-геохимические особенности тонштейнов черногорской свиты Бейского месторождения Минусинского угольного бассейна. Среди тонштейнов Бейского месторождения выделяются две разновидности: 1. тонштейны каолинитового (70–100 %) состава, 2. тонштейны смешанного состава. Единичные каолинитовые прослои характеризуются содержаниями P2O5 до 20 %. Комплексный минералого-геохимический подход позволил определить состав исходного пеплового материала, послужившего источником для формирования тонштейнов. Среди изученных прослоев преобладают тонштейны, образованные из кислой вулканогенной пирокластики, менее распространены тонштейны, образовавшиеся из вулканического пепла среднего состава. Редко встречаются тонштейны, сформированные при участии вулканогенного пирокластического материала основного и щелочно-основного составов. Исследования показали существенный вклад вулканогенного пирокластического материла в накопление РЗЭ, Zr, Hf, Ta, Nb, Y, Th и U в углях черногорской свиты Бейского месторождения. Рассмотрен вопрос о возможных источниках пеплового материала, из которого сформировались тонштейны.
ПРИМЕНЕНИЕ МЕТОДОВ КОМПЬЮТЕРНОГО МОДЕЛИРОВАНИЯ ЗОН ЗАТОПЛЕНИЯ ПРИ МАКСИМАЛЬНЫХ РАСЧЕТНЫХ УРОВНЯХ ВОДЫ ДЛЯ РЕШЕНИЯ ПРОЕКТНЫХ ЗАДАЧ ПРИ РЕКУЛЬТИВАЦИИ НАРУШЕННЫХ ЗЕМЕЛЬ, А ТАКЖЕ ПРОЕКТИРОВАНИИ ЗДАНИЙ И СООРУЖЕНИЙ ВБЛИЗИ ВОДНЫХ ОБЪЕКТОВ
Authors: (Roman V. Romanovskiy) Романовский Роман Владимирович
Published: February 2019

Актуальность моделирования зон максимального разлива рек (зон затопления) при проведении инженерных изысканий для проектирования и строительства объектов хозяйственной деятельности, разработки проектов рекультивации нарушенных земель в зонах непосредственного влияния водных объектов связана с тем, что в современных условиях, при постоянно растущих требованиях к безопасности и бесперебойности работы проектируемых сооружений, существующие методики оценки опасности затопления не всегда дают удовлетворительный результат, чтобы в полной мере оценить наличие или отсутствие риска для проектируемого сооружения. Цель работы: анализ отечественного и зарубежного опыта моделирования зон затопления при максимальных уровнях воды рек для практического решения задач инженерного проектирования, оценка достоинств и недостатков основных подходов в практике изысканий, демонстрация возможностей одного из способов моделирования при решении конкретной инженерной задачи. Методы. При подготовке исходных данных для создания цифровой модели рельефа применялся метод анализа пространственных данных при помощи геоинформационных систем, для расчета максимальной зоны затопления – метод численного моделирования зоны затопления р. Иня и расположенной по левому берегу отработанной карьерной выемки в рамках производства работ по подготовке проекта рекультивации нарушенных земель. Численное моделирование выполнялось при помощи моделирующей системы HEC-RAS версии 5.0.5. Результаты. Произведен обзор существующей мировой и отечественной практики численного моделирования зон затопления рек при решении задач в области инженерного проектирования, приведена собственная модель расчетной зоны затопления на примере участка рекультивации «Моховское поле», показан пример оценки влияния на рекультивируемый объект при реализации наиболее негативного сценария (вероятное затопление карьерной выемки в период прохождения максимального расхода воды 1 % обеспеченности), описаны достоинства и недостатки применения разных подходов на практике.
ЛИТОЛОГИЧЕСКИЕ ОСОБЕННОСТИ И ОРГАНИЧЕСКОЕ ВЕЩЕСТВО ОСАДОЧНЫХ ОТЛОЖЕНИЙ ЮГО-ВОСТОЧНОЙ ЧАСТИ МОРЯ ЛАПТЕВЫХ (МЫС МУОСТАХ)
Authors: (Tatyana G. Perevertaylo) Перевертайло Татьяна Геннадьевна , (Malika Z. Kazhumukhanova) Кажумуханова Малика Зейнеллаевна , (Natalya V. Nedolivko) Недоливко Наталья Михайловна , (Andrey A. Grinko) Гринько Андрей Алексеевич , (Natalia E. Shakhova) Шахова Наталья Евгеньевна , (Oleg V. Dudarev) Дударев Олег Викторович , (Elena V. Gershelis) Гершелис Елена Владимировна , (Alexey K. Mazurov) Мазуров Алексей Карпович , (Igor P. Semiletov) Семилетов Игорь Петрович
Published: February 2019

Актуальность исследования продиктована необходимостью изучения современных изменений климата, которые рассматриваются как последствия парникового эффекта, обусловленного ростом содержания в атмосфере основных парниковых газов – двуокиси углерода и метана. Для изучения этой проблемы и построения модели климата необходимо проведение комплексных исследований в системе суша–шельф–атмосфера на Арктическом шельфе, включая оценку потенциала морей Восточной Арктики в контексте особенностей литологического состава и трансформации органического вещества в углеводороды в процессе диагенетических и катагенетических преобразований. Цель: изучение литологического и минералогического составов, изменчивости содержания органического вещества (Сорг), молекулярного и изотопного состава углерода (δ13C) в отложениях ледового комплекса побережья моря Лаптевых (мыс Муастах). Объект: пробы современных донных осадков, отобранных в ходе проведения экспедиционных работ 2015 г. в юго-восточной части моря Лаптевых. Методика исследования донных отложений включает в себя пробоподготовку, лабораторно-аналитические исследования (хроматомасс-спектрометрия, пиролиз, изотопия, рентгенофазовый анализ, методы обработки и интерпретации результатов). Результаты. Изучен минералогический состав глинистой фракции, установлена зональность распределения глинистых минералов. Выявлены особенности состава органического вещества на молекулярном и изотопном уровнях. Получены первые результаты по потенциалу генерации углеводородов из органического вещества осадков ледового комплекса, которые доминируют в мелководной части Восточно-Сибирского шельфа. Результаты исследований, полученные по данным пиролиза и хроматомасс-спектрометрии, имеют высокую степень корреляции и отражают комплекс биохимических процессов, сопровождающих превращение органического вещества на различных стадиях литогенеза. Кроме того, приведены первые оценки потенциала генерации легких углеводородов из Сорг исследуемых осадков.
ЭКСПЕРИМЕНТАЛЬНАЯ ОЦЕНКА СТЕПЕНИ ОЧИСТКИ ИЗОТОПОВ САМАРИЯ ОТ ЩЕЛОЧНЫХ И ЩЕЛОЧНОЗЕМЕЛЬНЫХ ЭЛЕМЕНТОВ ПРИ ОСАЖДЕНИИ ГИДРООКИСЕЙ МНОГОВАЛЕНТНЫХ МЕТАЛЛОВ
Authors: (Sayan E. Salmenbaev) Сальменбаев Саян Елеусизович , (Sergey V. Makarychev) Макарычев Сергей Владимирович , (Alisa A. Stepanova) Степанова Алиса Александровна , (Nazgul K. Nurgaysinova) Нургайсинова Назгуль Кадирбековна
Published: February 2019

Актуальность исследования обусловлена необходимостью создания методической базы по определению содержания 151Sm на территории бывшего Семипалатинского испытательного полигона. В настоящее время информация об уровнях содержания данного радионуклида в объектах окружающей среды отсутствует, что не позволяет учитывать его влияние на дозовую нагрузку населения ведущего хозяйственную деятельность на территории полигона и потребляющего продукты данной сельскохозяйственной деятельности. Цель: оценить степень очистки изотопов самария от щелочных и щелочноземельных элементов при осаждении гидроксидов многовалентных металлов, в рамках разработки методики радиохимического определения 151Sm в почвенном покрове на территории бывшего Семипалатинского испытательного полигона. Объект: раствор на основе азотной кислоты концентрацией 3 моль/л, моделирующий состав раствора, получаемого после кислотной обработки почвы. Для приготовления раствора использовались основные макро- и микроэлементы, входящие в состав почвы, а также такие элементы, как: висмут, свинец, таллий, радиоактивные изотопы которых входят в радиоактивные семейства урана и тория. Методы: измерение рН растворов на приборе МАРК-901; измерение концентрации химических элементов с использованием квадрупольного масс-спектрометра Agilent 7700x и атомно-эмиссионного спектрометра с индуктивно-связанной плазмой iCAP 6300 Duo. Результаты. Представлены результаты исследований по оценке степени очистки изотопов самария от щелочных и щелочноземельных элементов при осаждении гидроксидов. Предложено наиболее оптимальное значение рН, при котором захват примесей незначителен, а выход изотопов самария максимален. Очистка от щелочных элементов составила в среднем 90 %, от щелочноземельных 80 %.
ОБОСНОВАНИЕ ТЕХНОЛОГИИ ИНТЕНСИФИКАЦИИ ДОБЫЧИ ГАЗА ИЗ ПРОДУКТИВНЫХ ПЛАСТОВ С РАЗЛИЧНЫМИ ТИПАМИ КОЛЛЕКТОРОВ В УСЛОВИЯХ МЕСТОРОЖДЕНИЙ МОРСКОГО ШЕЛЬФА
Authors: (Vladimir I. Smurygin) Смурыгин Владимир Иванович , (Ruslan U. Rabaev) Рабаев Руслан Уралович , Sergey A. Blinov Блинов Сергей Алексеевич , (Timur B. Bakishev) Бакишев Тимур Бегайдарович , (Shamil Kh. Sultanov) Султанов Шамиль Ханифович
Published: February 2019

Актуальность исследования заключается в том, что в настоящее время проблема поддержания уровней добычи углеводородов характеризуется, в том числе, недостаточной эффективностью существующих методов стимуляции и восстановления проницаемости продуктивного пласта вследствие малого охвата продуктивного пласта реагентами, как по толщине, так и по глубине проникновения, а также низкой эффективностью освоения. В этих условиях большое значение приобретают эффективные методы освоения скважин, а также методы интенсификации добычи, которые позволяют реанимировать и улучшить фильтрационные характеристики коллектора в призабойной зоне пласта. Особенно это актуально для месторождений Черноморского шельфа, где ряд эксплуатационных объектов представлен пластами-коллекторами терригенного и карбонатного состава, разрабатывающимися одновременно и где встречаются разрезы скважин с высокой неоднородностью геологических параметров. Цель: предложить и обосновать технологию интенсификации добычи газа для скважин, разрабатывающих газонасыщенные пласты с различным типом коллектора, а также обосновать применение предложенного состава для обработки скважины и технологию обработки скважин. Объект: скважина № 1 газоконденсатного месторождения Черноморского шельфа. Методы. С целью качественного обоснования технологии воздействия на призабойную зону пласта выполнен геолого-промысловый анализ разработки, на керновом материале проведены лабораторные исследования по подбору оптимального кислотного состава. Результаты. Обоснована технология интенсификации добычи газа для скважин, разрабатывающих газонасыщенные пласты с различным типом коллектора, в условиях месторождений морского шельфа. Оценена эффективность применения кислотного состава на основе 24 % соляной кислоты, и предложена технология проведения обработки скважины, включающая последовательную закачку кислотного раствора и отклонителя.
Caracterización de la evaluación y su relación con el desarrollo de competencias cognitivas dentro del proceso de enseñanza y aprendizaje en los estudiantes de noveno grado del Instituto Técnico Nacional de Comercio, Cúcuta, Colombia
Authors: Yáñez Meneses Sandra Patricia
Published: February 2019

This work documents the re-search carried out at the Instituto Técnico Nacional de Comercio in Cúcuta (Colombia) with ninth-grade students and their tea-chers, seeking to characterize the current state of evaluation methods and their rela-tionship with the development of cognitive skills among students, in order to design a proposal that helps to improve teaching and learning processes related to evaluation and cognitive skills. The research proposes the application of all types of instruments of evaluation, as required according to the time, place, type of students, and type of knowledge to be evaluated, in order to deve-lop, in the same way and at the same level, the cognitive skills of interpretation, argu-mentation, and proposition.
Lourenço Filho: contribuciones para una teoria de la administración escolar en Brasil
Authors: Estrada Adrian Álvarez , Barboza Jaqueline Lima
Published: February 2019

In 1963, Manoel Bergström Lourenço Filho (1897-1970) published his work entitled Organization and School Administration, which defined him as one of the pioneer authors in the systematization of the theory of school administration in Brazil. Thus this article aims to analyze the contribution of Lourenço Filho to the development and dissemination of precepts on this subject, by identifying the principles proposed by the author to make the actions of the organizers and administrators of school services more efficient.
Lamba Parlaklığını Etkileyen Değişkenler ile Değişkenleri Belirlemenin Öğretiminde Analoji Kullanımının Etkisi
Authors: HARMAN Gonca , ÇÖKELEZ Aytekin
Published: February 2019

Bu araştırmada lamba parlaklığını etkileyen
değişkenler ile değişkenleri belirlemenin öğretiminde analoji kullanımının
öğrenme ve kavram yanılgılarının giderilmesi üzerindeki etkisi incelenmiştir.
Araştırmaya ortaokul beşinci sınıfta öğrenim görmekte olan 98 öğrenci
katılmıştır. Araştırmada yarı deneysel yöntem çeşitlerinden eşitlenmemiş
kontrol gruplu ön ve son test yöntemi kullanılmış, yarı yapılandırılmış
görüşmeler yapılmıştır. Uygulama sürecinde deney grubunda analoji, kontrol
grubunda ise analoji kullanılmadan ders işlenmiştir. Araştırmada 9 sorudan
oluşan bir veri toplama aracı kullanılmıştır. Elde edilen veriler içerik
analizi ile çözümlenmiştir. Araştırma sonucunda analoji kullanımının öğrenme ve
kavram yanılgılarının giderilmesi üzerinde etkili olduğu saptanmıştır.
Okul Öncesi Öğretmenlerinin Etkinliklerde Kullandıkları Dikkat Çekme ve Dikkati Sürdürme Şekillerinin Öğretmen Görüşlerine Göre İncelenmesi
Authors: BARTAN Murat
Published: February 2019

Bu araştırma; okul öncesi öğretmenlerinin etkinlikler sürecinde çocukların dikkatlerini çekme ve dikkatlerini sürdürme şekillerini belirleme amacıyla yapılmıştır. Araştırma modeli olarak temel nitel araştırma yöntemi seçilmiştir. Araştırmaya, Kütahya ilinde Milli Eğitime bağlı resmi anaokulları ile ilköğretim bünyesindeki anasınıflarında görev yapan 36 okul öncesi öğretmeni katılmıştır. Araştırma verileri yarı yapılandırılmış görüşme soruları ile toplanmıştır. Veriler içerik analizi yapılarak kategorileştirilmiştir. Araştırma bulgularına göre okul öncesi öğretmenleri dikkat olgusunu öğrenmenin ilk şartı olarak görmekte, çocukların dikkatlerini dağıtan faktörlerin başında diğer arkadaşları, fizyolojik ihtiyaçları ile fiziki ortam olduğunu belirtmektedirler. Öğretmenlerin dikkati çekme şekillerine ilişkin bulgulara bakıldığında, öğretmenlerin seslerini ve beden dilini en fazla kullandıkları belirlenmiştir. Öğretmenler, sözel ve sözel olmayan uyarıcıları kullanarak dikkati sağlamaya çalıştıklarını, dikkatin en fazla dağıldığı etkinlik olarak Türkçe ve okuma yazmaya hazırlık etkinlikleri belirtmişlerdir.
Anjos e pastores: tópicas e intertextualidade no oratório de Alberto Nepomuceno
Authors: Teixeira Thiago Plaça
Published: February 2019

O presente artigo propõe a realização de uma análise da peça Em Bethleem, para coro e orquestra, de Alberto Nepomuceno (1864-1920). Tal obra emprega textos da obra Pastoral, do escritor brasileiro Henrique Maximiano Coelho Neto (1864-1934), e foi composta para ser encenada no Natal de 1903 na cidade de Campinas/SP, cabendo a Nepomuceno também a regência na estreia. Procurou-se considerar neste artigo os aspectos estilísticos gerais da obra e identificar elementos de tópicas e de intertextualidade musicais. A análise demonstra o emprego de procedimentos compositivos típicos da tópica pastoril no Prelúdio, elementos representativos no Coro dos Anjos e categorias de intertextualidade musical na Cantilena
Diophantine Equations with a Finite Number of Solutions: Craig Smorynski's Theorem, Harvey Friedman's Conjecture and Minhyong Kim's Guess
Authors: Tyszka Apoloniusz
Published: February 2019

Matiyasevich's theorem states that there is no algorithm to decide whether or not a given Diophantine equation has a solution in non-negative integers. Smorynski's theorem states that the set of all Diophantine equations which have at most finitely many solutions in non-negative integers is not recursively enumerable. We prove: (1) Smorynski's theorem easily follows from Matiyasevich's theorem, (2 ) Hilbert's Tenth Problem for Q has a negative solution if and only if the set of all Diophantine equations with a finite number of rational solutions is not recursively enumerable.
Protein-Encoding RNA-to-RNA Information Transfer in Mammalian Cells: Principles of RNA-Dependent mRNA Amplification
Authors: Volloch Vladimir
Published: February 2019

The transfer of protein-encoding genetic information from DNA to RNA to protein, a process formalized as the “Central Dogma of Molecular Biology”, has undergone a significant evolution since its inception. It was amended to account for the information flow from RNA to DNA, the reverse transcription, and for the information transfer from RNA to RNA, the RNA-dependent RNA synthesis. These processes, both potentially leading to protein production, were initially described only in viral systems, and although RNA-dependent RNA polymerase activity was shown to be present, and RNA-dependent RNA synthesis found to occur, in most, if not all, mammalian cells, its function was presumed to be restricted to regulatory. However, recent results, obtained in several systems, strongly indicate the occurrence of protein-encoding RNA to RNA information transfer in mammalian cells. It can result in the rapid production of the extraordinary quantities of specific proteins as was seen in cases of terminal cellular differentiation and during cellular deposition of extracellular matrix molecules. A malfunction of this process may be involved in pathologies associated either with the deficiency of a protein normally produced by this mechanism or with the abnormal abundance of a protein or of its C-terminal fragment. It seems to be responsible for some types of familial thalassemia and may underlie the overproduction of beta amyloid in sporadic Alzheimer’s disease. The potential physiological, therapeutic and bioengineering significance of this process appears to be substantial. The aim of the present article is to systematize the current knowledge and understanding of RNA-dependent amplification of mammalian mRNA. The outlined framework introduces unexpected features of the mRNA amplification such as its second Tier, a physiologically occurring intracellular PCR, iPCR, a “Two-Tier Paradox” and RNA “Dark Matter”. It also describes novel experimental bioengineering designs and may serve as a basis for new directions of investigations into the mechanisms underlying the mammalian mRNA amplification processes.
The Fundamental Theorems of Hyper-Operations
Authors: Barrett Renny
Published: February 2019

We examine the extensions of the basic arithmetical operations of addition and multiplication on the natural numbers into higher-rank hyper-operations also on the natural numbers. We go on to define the concepts of prime and composite numbers under these hyper-operations and derive some results about factorisation, resulting in fundamental theorems analogous to the Fundamental Theorem of Arithmetic.
Land Deals, Labour and Everyday Politics
Authors: Gyapong Adwoa Yeboah
Published: February 2019

This study presents empirical evidence on the nature of the political struggles for inclusion on an oil palm land deal in Ghana. It examines the employment dynamics and the everyday politics of workers on an oil palm plantation in a predominantly migrant and settler society of the north-eastern part of Ghana, where large-scale production has only been introduced within the past decade. It shows that by the nature of labour organization, as well as other structural issues, workers do not benefit equally from the land deals and therefore express everyday forms of resistance against exploitation, and for better terms of incorporation. Particularly, they express agency through absenteeism and non-compliance, which especially, enables them to maintain their basic food sovereignty/security. Nonetheless, these everyday politics is not necessarily liberating in confronting the everyday peasant problems and unfavourable agrarian transitions associated with capitalist agriculture. Overall, this paper contributes to the land grab literature by providing context-specific dynamics of impacts and politics and how are they are shaped by a multiplicity of factors- beyond class.
Retrieval of Sea Surface Wind Speeds from Gaofen-3 Full Polarimetric Data
Authors: Zhang Tianyu , Li Xiao-Ming , Feng Qian , Ren Yongzheng , Shi Yingni
Published: February 2019

In this paper, sea surface wind speed (SSWS) retrieval from Gaofen-3 (GF-3) quad-polarization stripmap (QPS) data in vertical-vertical (VV), horizontal-horizontal (HH) and vertical-horizontal (VH) polarizations is investigated in detail based on 3,170 scenes acquired from October 2016 to May 2018. The radiometric calibration factor of the VV polarization data is examined first. This calibration factor generally meets the requirement of SSWS retrieval accuracy with an absolute bias of less than 0.5 m/s but shows highly dispersed characteristics. These results lead to SSWS retrievals with a small bias of 0.18 m/s but a rather high root mean square error (RMSE) of 2.36 m/s compared with the ERA-Interim reanalysis model data. Two refitted polarization ratio (PR) models for the QPS HH polarization data are presented. Based on a combination of the incidence angle- and azimuth angle-dependent PR model and CMOD5.N, the SSWS derived from the QPS HH data shows a bias of 0.07 m/s and an RMSE of 2.26 m/s relative to the ERA-Interim reanalysis model wind speed. A linear function relating SSWS and the normalized radar cross section (NRCS) of QPS VH data is derived. The SSWS data retrieved from the QPS VH data show good agreement with the WindSat SSWS data, with a bias of 0.1 m/s and an RMSE of 2.02 m/s. We also apply the linear function to the GF-3 Wide ScanSAR data acquired for the typhoon SOULIK, which surprisingly yields a very good agreement with the model results. A comparison of SSWS retrievals among three different polarization datasets is also presented. The current study and our previous work demonstrate that the general accuracy of the SSWS retrieval based on GF-3 QPS data has an absolute bias of less than 0.3 m/s and an RMSE of 2.0 ±0.2 m/s relative to various datasets. Further improvement will depend on dedicated radiometric calibration efforts.
Cyclic Voltammetry Study of Mediated Electrochemical Oxidation Using Platinum Wire, Pt/Co(OH)2 and Pt/Co Electrodes In Various Supporting Electrolytes
Authors: Herlina Herlina , Zulfikar Muhammad Ali , Buchari Buchari
Published: February 2019

Amoxicillin is one of β-lactam antibiotic in penicillin groups which their presence in surface water and wastewater not only affects water quality but also causes long-term adverse effects on ecosystems and human health due to their resistance to natural biodegradation. The processing of organic waste electrochemically has the advantage of cheap and efficient cost, exhaust gas that does not contain toxic and hazardous materials. We have studied the process of amoxicillin electro-oxidation mediated by a cobalt (III) ion called an electrochemical oxidation process mediated (MEO) in a voltammetry study using a platinum working electrode, Pt/Co(OH)2 and Pt/Co in various supporting electrolytes such as  KNO3, NaClO4, Na2SO4 and phosphate buffer solution with concentrations 0.10 M. The results show that the amoxicillin oxidation peaks using the above-mentioned working electrode in various electrolyte solutions are in the potential range of 500-670 mV (Ag/AgCl). The presence of cobalt ions forming complex compounds with amoxicillin causes the oxidation current decreasing that indicates the presence of degradation to amoxicillin.