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Police visibility and fear of crime: Results of a study in Malatya, Turkey
Sener Uludag,Osman Dolu,Zakir Gul 한국형사법무정책연구원 2023 International Journal of Criminal Justice Vol.5 No.2
Despite mixed research findings, increasing police visibility has long been assumed to reduce crime and citizen fear of crime. Surveying 1,175 respondents from Malatya, a midsize city in Turkey, this paper examines the effects of citizens’ perceptions of police visibility and success on fear of crime during the daytime and at night. Consistent with some previous research, ordered logistic regression analyses revealed that perceived police visibility had no effect on citizens’ fear of crime. However, perceived police success significantly reduced fear of crime at night. Consistent with previous research, females were more likely than males to fear crime during the day, and this effect increased exponentially at night. Previous personal crime victimization was a strong predictor of fear of crime during daytime but not at night, and reading local newspapers increased fear of crime during daytime only, suggesting that victims of personal crimes are more likely to limit their exposure to nighttime contexts. Limitations and implications for future research are discussed.
Sener, Azize,Yardimci, Turay Korean Society for Biochemistry and Molecular Biol 2005 Journal of biochemistry and molecular biology Vol.38 No.3
Gamma-glutamyltransferase (GGT, EC 2.3.2.2) which hydrolyzes glutathione (GSH), is required for the maintenance of normal intracellular GSH concentration. GGT is a membrane enzyme present in leukocytes and platelets. Its activity has also been observed in human neutrophils. In this study, GGT was purified from Triton X-100 solubilized neutrophils and its kinetic parameters were determined. For kinetic analyses of transpeptidation reaction, $\gamma$-glutamyl p-nitroanilide was used as the substrate and glycylglycine as the acceptor. Apparent $K_m$ values were determined as 1.8 mM for $\gamma$-glutamyl p-nitroanilide and 16.9 mM for glycylglycine. The optimum pH of GGT activity was 8.2 and the optimum temperature was $37^{\circ}C$. It had thermal stability with 58% relative activity at $56^{\circ}C$ for 30 min incubation. L-serine, in the presence of borate, was detected as the competetive inhibitor. Bromcresol green inhibited neutrophil GGT activity as a noncompetetive inhibitor. The neutrophils seem to contain only the isoenzyme that is present in platelets. We characterized the kinetic properties and compared the type of the isoenzyme of neutrophil GGT with platelet GGT via polyacrylamide gel electrophoresis (PAGE) under a standart set of conditions.
Recanalization before Thrombectomy in Tenecteplase vs. Alteplase-Treated Drip-and-Ship Patients
Pierre Seners,Jildaz Caroff,Nicolas Chausson,Guillaume Turc,Christian Denier,Michel Piotin,Manvel Aghasaryan,Cosmin Alecu,Olivier Chassin,Bertrand Lapergue,Olivier Naggara,Marc Ferrigno,Caroline Arqui 대한뇌졸중학회 2019 Journal of stroke Vol.21 No.1
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Recurrence Risk and Prognostic Parameters in Stage I Rectal Cancers
Cihan, Sener,Kucukoner, Mehmet,Ozdemir, Nuriye,Dane, Faysal,Sendur, Mehmet Ali Nahit,Yazilitas, Dogan,Urakci, Zuhat,Durnali, Ayse,Yuksel, Sinemis,Aksoy, Sercan,Colak, Dilsen,Seker, Mehmet Metin,Taskoy Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.13
Background: The standard therapy for stage I rectum cancer is surgical resection. Currently, there is no strong evidence to suggest that any type of adjuvant therapy is beneficial. The risks of local relapse and distant metastasis are higher in rectal tumors. Therefore, while there is no clearly defined absolute indication for adjuvant therapy in lymph node negative colon cancers, rectum tumors that are T3N0 and higher require adjuvant treatment. Due to the more aggressive nature of rectal cancers, we explored the clinical and pathologic factors that could predict the risk of relapse in Stage I (T1-T2) disease and whether there was any progression-free survival benefit to adjuvant therapy. Materials and Methods: This multicenter study was carried out by the Anatolian Society of Medical Oncology. A total of 178 patients with rectal cancers who underwent curative surgery between January 1994 and August 2012 in 13 centers were included in the study. Patient demographics, including survival data and tumor characteristics were obtained from medical charts. Results: The median age was 58 years (range 26-85 years). Most tumors were well or moderately differentiated. For adjuvant treatment, 13 patients (7.3%) received radiotherapy alone, 12 patients (6.7%) received chemotherapy alone and 15 patients (8.4%) were given chemoradiotherapy. Median follow up was 29 months (3-225 months). Some 42 patients (23.6%) had relapse during follow up; 30 with local recurrence (71.4%) whereas 12 (28.6%) were distant metastases. Among the patients, 5-year DFS was 64% and OS was 82%. Mucinous histology and receiving adjuvant therapy were found to have statistically insignificant correlations with relapse and survival. Conclusions: In our retrospective analysis, approximately one quarter of patients exhibited either local or systemic relapse. The rates of relapse were slightly higher in the patients who had no adjuvant therapy. There may thus be a role for adjuvant therapy in high-risk stage I rectal tumors.
Aysun Sener Geduk,Fatma Zengin 한국식품과학회 2021 Food Science and Biotechnology Vol.30 No.9
The main objective of this study was to examinethe phenolic compounds and the antibacterial, antioxidant,anti-a-glucosidase and anti-a-amylase activities of thedifferent extracts (methanol, ethanol and hexane) of Musacavendishii collected from the Anamur district in Turkey. LC–MS/MS was used to identify phenolic compounds. Quinic acid, acotinic acid, hesperidin and amentoflavonewere identified in methanol extract. These phenolic compounds,excluding hesperidin, were also identified in theethanol extract. Methanolic extract appeared the mostactive in all enzyme inhibition, antibacterial and antioxidativeactivity assays which is mainly due to its richphenolic content. The methanol extract of banana showedthe highest anti-a-glucosidase and anti-a-amylase activitieswith IC50 values of 5.45 ± 0.39 mg/mL, 9.70 ± 0.29 mg/mL, respectively. This study showed that methanol andethanol extract, especially the methanol extract, havepotential for use in the development of functional foods forreducing the diabetes and bacterial risks.
Alkaloids from Amaryllidaceae III. Alkaloids from the Bulbs of Pancratium maritimum
Bilge Sener,Sakine Konukol,Cornelis Kruk,Upendra K. Pandit 한국생약학회 1998 Natural Product Sciences Vol.4 No.3
The extract from the bulbs of Pancratium maritimum L. afforded 12 alkaloids belonging to the skeletally six different groups of the Amaryllidaceae allcaloids. In this paper, the isolation and identification of (-)-N-dernethyl-galanthamine (1), (+)-tazettine (2) and (-)-2-O-demethylmontanine (3) are described. Their structures have been determined by using extensive spectroscopic techniques. This is the first report describing the occurrence of 1 and 3 in this plant.
G. Sener,O. Sacan,R. Yanardaca,G. Ayanoallu-Dulger 한국식품영양과학회 2002 Journal of medicinal food Vol.5 No.1
In diabetes mellitus, increased free radical formation raises the incidence of atherosclerosisand cardiovascular diseases. Regardless of the type of diabetes, the objective of the therapyis to achieve normoglycemia and to prevent or delay the complications. Chard (Beta vulgarisL. var. cicla) is used as a hypoglycemic agent by diabetic patients in Turkey. The aim of thisstudy was to investigate the effect of feeding chard on diabetes-induced free radical medi-ated injury in rat aorta and heart tissues. Female Swiss albino rats were randomly dividedinto four groups: control, diabetic, chard, and diabetic 1 chard. Rats were subjected to in-traperitoneal streptozotocin (STZ, 65 mg/kg) to induce diabetes. Chard extract (2 g/kg) wasgiven for 28 days beginning on the 14th day of the study. Aorta and heart tissue lipid perox-idation and glutathione levels as well as blood glucose levels were determined. The resultsof the present study indicate that lipid peroxidation was increased and glutathione levelswere decreased in both aorta and heart tissue of the diabetic rats. However, treatment withchard extract reversed the effects of diabetes on blood glucose and tissue lipid peroxidationand glutathione levels.37
Acute Generalized exanthematous pustulosis Due to oral Use of Blue Dyes
( Osman Sener ),( Osman Kose ),( Ozgur Kartal ),( Mukerrem Safali ) 대한내과학회 2011 The Korean Journal of Internal Medicine Vol.26 No.3
Acute generalized exanthematous pustulosis is a rare severe pustular cutaneous adverse reaction characterized by a rapid clinical course with typical histological findings. It is accompanied by fever and acute eruption of non-follicular pustules overlying erythrodermic skin. The causative agents are most frequently antibacterial drugs. We present a patient with acute generalized exanthematous pustulosis caused by methylene blue and indigotin dyes.