Mobile inquiry and inquiry-based science learning in higher education: advantages, challenges, and attitudes

Inel-Ekici, Didem,Ekici, Murat 서울대학교 교육연구소 2022 Asia Pacific Education Review Vol.23 No.3

This exploratory study investigated higher education student experiences on the effects and limitations of mobile inquiry-based and inquiry-based science learning applications. A total of 80 pre-service science and elementary school teachers from a public university in Turkey were recruited in the study using availability sampling. Participants were randomly assigned to one of two groups; one group participated in face-to-face inquiry-based learning (IBL) and the other participated in mobile inquiry-based learning (m-IBL). Data were collected using semi-structured interviews after 6 weeks of inquiry. Three main categories arose from the data analysis: the effects of m-IBL and IBL applications, problems encountered in the applications, and attitudes toward the application process. It was found that both IBL and m-IBL activities contributed to the meaningful learning of the science subjects, an understanding of scientific research, and the development of thinking skills, such as scientific process skills and problem-solving.

On Fuzzy Irresolute Functions

Ekici, Erdal,Park, Jin-Han Korean Institute of Intelligent Systems 2005 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.5 No.2

As a generalization of the notions of fuzzy $\alpha-irresolute$, fuzzy preirresolute, fuzzy irresolute and fuzzy $\beta-irresolute$ functions, we introduce the notion of fuzzy $\beta\alpha-continuous$ functions and investigate the relationships between fuzzy $\beta\alpha-continuous$ functions and fuzzy separation axioms.

Do Leukocyte and Platelet Counts Have Benefit for \Preoperative Evaluation of Endometrial Cancer?

Ekici, Huseyin,Malatyalioglu, Erdal,Kokcu, Arif,Kurtoglu, Emel,Tosun, Migraci,Celik, Handan Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.13

Purpose: The aim of this study was to investigate the association between preoperative leukocyte and platelet counts and the stage of the disease in patients with endometrial cancer. Materials and Methods: Data for 100 patients undergoing total abdominal hysterectomy and bilateral salpingoophorectomy for benign uterine diseases and 177 patients surgically staged for endometrial cancer at Ondokuz Mayis University, Department of Gynecology and Obstetrics between 2005 and 2013, with preoperative complete blood count in the week prior to surgery including WBC, platelet count, pathologic evaluation for both benign and malign endometrium lesions, tumor stage and presence of lymphovascular space invasion (LVI), were retrospectively analyzed. Results: The preoperative leukocyte count was significantly higher in patients with endometrial cancer when compared to the patients with benign diseases. However, there were no significant differences in platelet counts between the groups. Patients with advanced stage endometrial cancer had higher preoperative leukocyte counts when compared to the early stage disease whereas there was no difference in platelet count. Multivariate regression analysis identified preoperative leukocytosis as an independent prognostic factor for endometrial cancer. The optimal cut-off point for WBC was calculated as 10,500 to differentiate stage 1-2-3 and 4 with 88.9% sensitivity and 86.3% specificity (AUC: 0.901, 95% CI: 0.829-0.973, p<0.001, PPV: 25.8%, NPV: 99.3%). Conclusions: Preoperative leukocytosis is independently associated with advanced endometrial cancer.

ON FUZZY FUNCTIONS

EKICI ERDAL Korean Mathematical Society 2005 대한수학회논문집 Vol.20 No.4

In 1998, Thakur and Singh introduce the concept of fuzzy $\beta$-continuity (Fuzzy Sets and Systems, 98(1998), 383-391). In this paper we introduce and study the notion of fuzzy slightly $\beta$-continuity. Fuzzy slightly $\beta$-continuity generalize fuzzy $\beta$-continuity. Moreover, basic properties and preservation therems of fuzzy slightly $\beta$-continuous functions are obtained.

Surgical Management of Cervical Spinal Epidural Abscess Caused by Brucella Melitensis : Report of Two Cases and Review of the Literature

Ekici, Mehmet Ali,Ozbek, Zuhtu,Gokoglu, Abdulkerim,Menku, Ahmet The Korean Neurosurgical Society 2012 Journal of Korean neurosurgical society Vol.51 No.6

Spinal epidural abscess, if especially caused by Brucellosis is a very rare disease which is usually a consequence of spondylodiscitis. The spinal column can be affected at any joint; however, the lumbar spine is the most common region, especially at the level of the L4-5 and L5-S1. The frequency of spinal involvement usually seen at the lumbar, thoracic and cervical spine respectively. As an occupational disease in farmers, veterinaries, butchers, laboratory staff and shepherds, brucellosis can also occur by direct contact to animals and infected materials or ingestion of raw cheese, milk or unpasteurized milk products. In this study, we presented two cases with cervical spinal epidural abscess caused by brucella melitensis, which was successfully treated by surgical approach. Initial treatment was combined with antibiotic therapy after the surgery for 3 months.

ON PC^⋆-CLOSED SETS

Ekici, Erdal,Tunc, A. Nur Chungcheong Mathematical Society 2016 충청수학회지 Vol.29 No.4

In this paper, the concept of $PC^{\star}$-closed sets is introduced. $PC^{\star}$-closed sets contain $pre^*_I$-open and $pre^*_I$-closed sets, ${\mathcal{RPC}}_I$ and $pre^*_I$-closed sets, ${\mathcal{RPC}}_I$ and weakly $I_{rg}$-closed sets.

On Almost Continuity

EKICI, ERDAL 대한수학회 2006 Kyungpook mathematical journal Vol.46 No.1

A new class of functions is introduced in this paper. This class is called almost δ-precontinuity. This type of functions is seen to be strictly weaker than almost precontinuity. By using δ-preopen sets, many characterizations and properties of the said type of functions are investigated.

On Almost Continuity

Ekici, Erdal Department of Mathematics 2006 Kyungpook mathematical journal Vol.46 No.1

A new class of functions is introduced in this paper. This class is called almost ${\delta}$-precontinuity. This type of functions is seen to be strictly weaker than almost precontinuity. By using ${\delta}$-preopen sets, many characterizations and properties of the said type of functions are investigated.

Collapsed L4 Vertebral Body Caused by Brucellosis

Ekici, Mehmet Ali,Ozbek, Zuhtu,Kazanci, Burak,Guclu, Bulent The Korean Neurosurgical Society 2014 Journal of Korean neurosurgical society Vol.55 No.1

Brucellosis is caused by gram-negative, aerobic, non-motile, facultative, intracellular coccobacilli belonging to the genus Brucella. A 50-year-old man working as an employee was admitted to neurosurgery clinic with severe low back, radicular right leg pain and hypoesthesia in right L4-5 dermatomes for 2 months. Brucella tube agglutination (Wright) test was positive in serum sample of the patient with a titer of 1/640. Brucella melitensis was isolated from blood culture. X-ray and MRI of the lomber spine showed massive collapse of L4 vertebral body. Neural tissue was decompressed and then posterior L3-5 short segment transpedicular screw fixation and stabilization was performed. Brucella melitensis was isolated from microbiologic culture of pathologic specimen. Antibiotic therapy was given as doxycycline 200 mg/day and rifampicin 600 mg/day for 6 months. Brucellosis is a systemic zoonotic infection and still an important public health problem in many geographical parts of the world. Vertebral body collapse caused by brucellosis occurs very rarely but represents a neurosurgical emergency because of its potential for causing rapidly progressive spinal cord compression and permanent paralysis. Neurosurgeons, emergency department personnel as well as infectious disease specialists should always keep a high index of suspicion and include brucellosis in the differential diagnosis of vertebral body collapse.

ON SOME TYPES OF CONTINUOUS FUZZY MULTIFUNCTIONS

Ekici, Erdal Korean Mathematical Society 2004 대한수학회보 Vol.41 No.4

In this paper, by using operations, some characterizations and some properties of fuzzy lower and upper continuous multifunctions and its weaker and stronger forms including fuzzy lower and upper weakly continuous, fuzzy lower and upper ${\theta}-continuous$, fuzzy lower and upper strongly ${\theta}-continuous$, fuzzy lower and upper almost strongly ${\theta}-continuous$, fuzzy lower and upper weakly ${\theta}-continuous$, fuzzy lower and upper almost continuous, fuzzy lower and upper super continuous, fuzzy lower and upper ${\delta}-continuous$, are presented.