Identification of the Students’ Misconceptions about the Digestive System

The aim of this study is to determine the students’ misconceptions about the digestive system. In this quantitative research, the study group comprised totally 259 sixth-, seventh-, and eighth-grade students. The data were collected through a three-tier diagnostic test and analyzed in terms of scientific knowledge, the lucky guess, lack of knowledge, and misconception levels of students on digestive system. According to the findings, 20.1% of the students’ answers were in the scientific knowledge category and 9.1% were in the lucky guess category. On the other hand, 39.7% of the answers were in the lack of knowledge category and 26.0% were in the misconception category. The most prominent findings in the study were the students’ misconceptions in a few questions, especially about physical and chemical digestion. In addition, some students did not fully understand the distinction between the excretory and digestive organs and the functions of some accessory. They also gave incorrect answers about the organs where the digestion of proteins, carbohydrates and fats begins and ends. At the end of the study, suggestions were made to eliminate the misconceptions

ON ABEL CONVERGENT SERIES OF FUNCTIONS

In this paper, we are concerned with Abel uniform convergence and Abel pointwise convergence of series of real functions where a series of functions Σ fn is called Abel uniformly convergent to a function f if for each " > 0 there is a _ > 0 such that jfx(t) 􀀀 f(t)j < " for 1 􀀀 _ < x < 1 and 8t 2 X, and a series of functions Σ fn is called Abel pointwisely convergent to f if for each t 2 X and 8" > 0 there is a _("; t) such that for 1 􀀀 _ < x < 1 jfx(t) 􀀀 f(t)j < "

The Effects of Marketing Capabilities on Export Performance Using Resource-based View: Assessment on Manufacturing Companies

AbstractFor the last years, under increasing intensive competitive conditions, manufacturing firms have been seeking ways to create advantages against their competitors that lead them to change their product-oriented strategy to adopt market-oriented strategy. Thus, it is important for those firms to define their activities better and to use their resources to increase their export performance. In this study, using resource-based view, important resources and marketing capabilities of manufacturing companies which play key roles in their export performance were examined. Then, in order to understand the effects of various defined resources and marketing capabilities on manufacturing firms’ export performance in depth, export activities of 14 Turkish manufacturing firms in different sectors were investigated using critical incident method

A new technique in laparoscopic abdominal access (Evsen Method, Modified Veress Technique)

Objectives: The most important step in laparoscopic surgery is to safely establish the pneumoperitoneum, especially since approximately half of the complications occur during the initial entry into the abdomen. There is a distinct need to modify the available methods to reduce therate of adverse events in laparoscopic entry. In this study, a modified Veress technique (MVT) or Evsen method is introduced.The aim of this article was to present a modified Veress technique for establishing the pneumoperitoneum. Material and methods: The study was conducted at the Dicle University, Faculty of Medicine, Department of Obstetrics and Gynecology, from September 2016 to May 2017. A new laparoscopic entry technique was introduced and compared with the classical Veress technique. A total of 40 cases were included in the study. MVT and the classical Veress method were applied to 26 and 14 patients, respectively. Results: The pneumoperitoneum was established at the first attempt in 23 (88.5%) MVT patients and in 7 (50%) patients from the classical Veress method group. The number of insufflation attempts to establish a successful pneumoperitoneum was lower using MVT and the difference was statistically significant (p: 0.022). As far as time is concerned, a comparison between the groups revealed that the pneumoperitoneum was established in a statistically significantly shorter time using MVT (p < 0.00). Conclusions: The modified Veress technique proved to be superior to the classical Veress method for establishing the pneumoperitoneum. Using the new method, the pneumoperitoneum was established after fewer attempts and in a shorter time

Dilemma in predicting the infarct-related artery in acute inferior myocardial infarction: A case report and review of the literature

The electrocardiogram (ECG) has being used for decades as a reliable and inexpensive tool to diagnose acute myocardial infarction (AMI). ECG diagnosis of an occluded coronary artery is of the utmost importance. We present the case of a 46 year-old man admitted to our hospital for inferior AMI. The ECG findings suggested right coronary artery occlusion. Coronary angiography showed left circumflex artery occlusion. We also briefly review the literature. (Cardiol J 2011; 18, 2: 204-206

N-[2-(4-Bromo­benzo­yl)eth­yl]isopropyl­aminium chloride

The crystal structure of the title compound, C12H17BrNO+·Cl−, is stabilized by N—H⋯Cl and C—H⋯O hydrogen bonds, forming a three-dimensional network. The inter­actions framework is completed by C—H⋯π contacts between a methyl­ene group and the benzene ring of a symmetry-related mol­ecule

Retrospektywna analiza 41 przypadków łożyska wrośniętego – strategie postępowania

Objective: The aim of the study was to evaluate maternal characteristics, surgical treatment options, and morbidity of patients with placenta accreta. Methods: We retrospectively reviewed the medical records of placenta accreta patients who were diagnosed and hospitalized between 2006 and 2010 at the Obstetrics and Gynecology Clinics of the Dicle University Hospital (Center A) and Maternity Hospital (Center B) in Diyarbakir, Turkey. The data were retrieved from medical charts of both hospitals. Maternal demographic features, clinical outcomes, type of surgical intervention, and complicationswere evaluated. Results: The incidence of placenta accreta was 1/426 deliveries in Center A and 1/7573 deliveries in Center B over a 5-year period. Thirty-nine (95.1%) patients had placenta previa, and 32 (78.0%) patients had at least one previous cesarean delivery. Hysterectomy was performed in 28 (68.3%) of 41 women with placenta accreta and uterine preservation was achieved in 13 (31.7%) of them. One (2.4%) maternal death occurred. Estimated blood loss was >2 liters and all patients required blood products transfusion. Conclusion: Placenta accreta is highly associated with the existence of placenta previa, especially in cases with previous cesarean delivery. When placenta accreta is diagnosed or suspected, the patient should be referred to a tertiary center for optimum care, where the obstetrical team should include experienced pelvic surgeons who are capable of performing emergent hysterectomy, internal iliac artery ligation, and uterine devascularization procedures.Cel: Celem badania była analiza czynników matczynych, metod leczenia chirurgicznego i zachorowalności pacjentek z łożyskiem wrośniętym. Metody: Retrospektywnie przeanalizowano historie chorób pacjentek z łożyskiem wrośniętym, które zdiagnozowano i leczono w latach 2006 do 2010 w Klinice Ginekologiczno-Położniczej w Dicle University Hospital (ośrodek A) oraz Maternity Hospital (ośrodek B) w Diyarbakir, Turcja. Dane do analizy uzyskano z dokumentacji obu szpitali. Oceniono czynniki matczyne, demograficzne, wyniki leczenia, rodzaj zastosowanej interwencji chirurgicznej i jej powikłania. Wyniki: Częstość występowania łożyska wrośniętego wynosiła 1/426 porodów w ośrodku A i 1/7573 porodów w ośrodku B w okresie 5 lat obserwacji. Trzydzieści dziewięć (95,1%) pacjentek miało łożysko przodujące a 32 (78%) kobiety podawały co najmniej jedno cięcie cesarskie w przeszłości. Usunięcie macicy wykonano w 28 przypadkach (68,3%) spośród 41 kobiet z łożyskiem wrośniętym, natomiast u 13 z nich (31,7%) udało się zachować macicę. Jedna (2,4%) pacjentka zmarła. Szacowana utrata krwi wynosiła ponad 2 litry i wszystkie pacjentki wymagały przetoczeń preparatów krwi. Wnioski: Łożysko wrośnięte jest istotnie związane z łożyskiem przodującym, zwłaszcza w przypadkach cięcia cesarskiego w wywiadzie. W sytuacji rozpoznania lub podejrzenia łożyska przodującego, należy przekazać pacjentkę do ośrodka trzeciego stopnia referencyjności celem uzyskania optymalnej opieki nad chorą. Do ośrodka, w którym wśród położników będą doświadczeni chirurdzy miednicy mniejszej będący w stanie wykonać natychmiastowe usunięcie macicy, podwiązanie tętnicy biodrowej wewnętrznej i inne procedury zmniejszające unaczynienie macicy