Citizen satisfaction and influential factors of e-government services during the COVID-19 crisis : a Turkish case study

This study aimed to evaluate citizen satisfaction with e-Government (eGov) services in Turkey amid the COVID-19 pandemic and identify the key factors influencing satisfaction levels. Data were collected from a random sample of 396 citizens residing in Usak, Turkey, who utilized eGov services throughout the crisis. Factor analysis and multiple linear regression methods were employed to examine the gathered data. The results revealed that the performance of eGov services and citizens' trust in the government were significant predictors of satisfaction with eGov services in the context of a pandemic. These findings offer valuable insights into enhancing eGov implementation in Turkey and suggest potentially beneficial strategies for nations with similar eGov infrastructures and socio-economic development. The broader implications of these findings for both practical applications and future research are subsequently explored in this study.peer-reviewe

İNTRAVENÖZ SIVI TEDAVİSİ UYGULANAN TERM YENİDOĞAN BEBEKLERDE KULLANILAN FARKLI SIVI İÇERİKLERİNİN KLİNİK VE LABORATUVAR DEĞİŞKENLERE ETKİLERİNİN DEĞERLENDİRİLMESİ: ULUSAL ÇOK MERKEZLİ GÖZLEMSEL NEOFLUİD ÇALIŞMASI

AMAÇ: Term bebeklerin tedavilerinde standart bir yaklaşım olmayıp farklısodyum içeriklerine sahip intravenöz sıvılar uygulanmaktadır. Bu çalışmadakiamacımız intravenöz sıvı tedavisi verilen term bebeklerde uygulanan sıvılarınklinik ve laboratuvar değişkenliklere etkilerini değerlendirmektir.MATERYAL-METOT: Çok merkezli, prospektif, gözlemsel ilaç çalışmasıolarak planlanan çalışmaya trials-network üzerinden bildirilen, dahil edilme vedışlanma kriterlerine uyan hastalar alınmıştır. Bu hastalara verilen sıvıtedavileri sodyum içeriklerine göre hipotonik (&lt;130 mEq/L) ve izotonik (154mEQ/L) olarak gruplandırılıp, gruplar arasında sıvı tedavisi altında saatlik sodyumdeğişimleri, hiponatremi (&lt;135 mEq/L) ve hipernatremi (&gt;145 mEq/L)gelişimleri, klinik olarak önemli Na değişimleri (&gt;0,5mEq/sa)karşılaştırıldı. BULGULAR: Çalışmaya 25 merkezden toplam 420 hasta dahil edildi. 302hastaya hipotonik, 96 hastaya izotonik sıvı verildi. Bu iki grup arasında tedaviöncesi demografik, klinik ve planlanan tedavi miktarları arasında istatistikselolarak anlamlı fark saptanmadı. Hipotonik sıvı alan grupta saatlik sodyum değişiminin negatif yönde olduğu,izotonik sıvı alan grupta bu değişimin pozitif yönde olduğu ve farkınistatistiksel olarak anlamlı olduğu saptandı. [-0,07±0,03 (95%Cl:-0,13- -0,02); 0,04±0,03(95%Cl:-0,02- 0,09), p:0,04]. Gruplar arasında hipernatremi gelişimi ve klinikolarak önemli sodyum artışı açısından fark yokken, hiponatremi gelişenhastaların ve klinik olarak önemli sodyum düşüşü olan hastaların hipotonik sıvıgrubunda anlamlı olarak daha fazla olduğu saptandı [7,9% vs 1,2% (OR:6,5,p:0,03)]; [12,2% vs 4,2% (OR:2,9, p:0,03)]. Sıvı tedavisi devam eden hastalardatedavi 24. saatinden sonra gruplar arasında anlamlı bir fark saptanmadı.SONUÇ: Günlük ihtiyacının yarısından fazlası intravenöz olarak verilenyenidoğanlarda hiponatremik içerikli sıvılar verildiğinde tedavinin özellikleilk 24 saatinin içinde hiponatremi riski yaratmaktadır. İlk günden sonra olasıfizyolojik değişiklikler nedeniyle bu risk görülmeyebilmektedir.</p

Solution processed aluminum-doped ZnO thin films for transparent heater applications

A study was carried out to tailor the properties of ultrasonic spray pyrolysis deposited Al-doped ZnO (AZO) thin films suitable for transparent heater applications. For this purpose, the influences of solvent/precursor type and molarity, Al-doping concentration, nozzle to substrate distance, solution flow rate, carrier gas flow, substrate temperature, and post-deposition annealing on the microstructure, electrical, optical properties, and heating/ deicing behaviors of the films were investigated. The optimized heaters were produced on 50 x 75 mm(2) glass substrates at 400 degrees C with 750 nm thickness and annealed under forming gas for 90 min. This sample revealed a good sheet resistance value of 38.7 Omega/square and 83% transmittance in the visible region. Heating/deicing tests showed that the maximum achievable surface temperature was 76 degrees C under an applied potential of 12 V and all ice/water can be removed completely within 250 s. In addition, the AZO heater exhibited a very high thermal resistance value (409 degrees C cm(2)/Watts) with stable and reversible heating behavior

MeltdownDetector: a runtime approach for detecting meltdown attacks

In this work, we present a runtime approach, called MeltdownDetector, for detecting, isolating, and preventing ongoing Meltdown attacks that operate by causing segmentation faults. Meltdown exploits a hardware vulnerability that allows a malicious process to access memory locations, which do not belong to the process, including the physical and kernel memory. The proposed approach is based on a simple observation that in order for a Meltdown attack to be worthwhile, either a single byte of data located at a particular memory address or a sequence of consecutive memory addresses (i.e., sequence of bytes) need to be read, so that a meaningful piece of information can be extracted from the data leaked. MeltdownDetector, therefore, monitors segmentation faults occurring at memory addresses that are close to each other and issues a warning at runtime when these faults become “suspicious.” Furthermore, MeltdownDetector flushes the cache hierarchy after every suspicious segmentation fault, which, in turn, prevents any information leakage. In the experiments, MeltdownDetector successfully detected all the attacks and correctly pinpointed all the malicious processes involved in these attacks and did so without issuing any false alarms and without leaking even a single byte of data. Furthermore, the runtime overhead of the fastest MeltdownDetector implementation was about 1%, on average

MeltdownDetector: a runtime approach for detecting meltdown attacks

In this work, we present a runtime approach, called MeltdownDetector, for detecting, isolating, and preventing ongoing Meltdown attacks that operate by causing segmentation faults. Meltdown exploits a hardware vulnerability that allows a malicious process to access memory locations, which do not belong to the process, including the physical and kernel memory. The proposed approach is based on a simple observation that in order for a Meltdown attack to be worthwhile, either a single byte of data located at a particular memory address or a sequence of consecutive memory addresses (i.e., sequence of bytes) need to be read, so that a meaningful piece of information can be extracted from the data leaked. MeltdownDetector, therefore, monitors segmentation faults occurring at memory addresses that are close to each other and issues a warning at runtime when these faults become “suspicious.” Furthermore, MeltdownDetector flushes the cache hierarchy after every suspicious segmentation fault, which, in turn, prevents any information leakage. In the experiments, MeltdownDetector successfully detected all the attacks and correctly pinpointed all the malicious processes involved in these attacks and did so without issuing any false alarms and without leaking even a single byte of data. Furthermore, the runtime overhead of the fastest MeltdownDetector implementation was about 1%, on average

Phylogenetic and phylogeographic analysis of Myrmeleotettix maculatus (Orthoptera: Acrididae: Gomphocerinae) species group in Anatolia

Six Anatolian and one European populations of the Myrmeleotettix maculatus species group, which contains M. maculatus and M. ethicus species, have been studied by using molecular genetics methods with mitochondrial COI gene. Myrmeleotettix ethicus is an Anatolian endemic species with local distribution whereas M. maculatus is distributed in western Palearctic. The phylogenetic analysis (ML and BI analyses) of the M. maculatus species group in Anatolia reveals that it consistently recovered two well-supported main clades and four different lineages. Molecular time estimates suggest that the diversification of the M. maculatus species group took place between the Late Tortonian (around 8-9 My) and the Middle of Pliocene-Pleistocene (around 4.3 My-present) periods and the current distribution of the genetic diversity has been affected by the uplifting of the Central Anatolian plateau, the termination of the Messinian salinity crisis, and the Quaternary climatic changes. Copyright © 2021 Magnolia Press.AR.15, NKUBAP.00.10This study has been supported by the Research Fund of the Tekirdag Namik Kemal University (Project numbers: NKUBAP.00.10.AR.15. 01).for their help in collecting specimens. We are also grateful to Dr. Petru Golban (Tekirdağ Namık Kemal University, English Language and Literature) for improving the English of the manuscript and to Dr. Can YILMAZ (Hakkari University) for help in preparing GIS-based map of study area. We also thank to two anonymous reviewers for their constructive critiques. This study has been supported by the Research Fund of the Tekirdağ Namık Kemal University (Project numbers: NKUBAP.00.10.AR.15. 01)

Can Early Haemoglobin Level and Number of Blood Transfusions Predict Bronchopulmonary Dysplasia ?

Background: Currently, no practical biomarker has been discovered for early recognition of the development of bronchopulmonary dysplasia(BPD). This study aimed to evaluate the predictive value of early complete blood count (CBC) indices along with red blood cell transfusion(RBCT) frequency for the development of moderate/severe BPD, and to identify a promising predictive risk model for BPD.Methods: In this cross-sectional study, one-hundred-sixty-two neonates born before the 32nd weeks of gestation were retrospectively. Predictive role of CBC parameters in the first three postnatal days(PD) and the number of RBCTs on weekly basis were evaluated by univariate/multivariate analysis as well as multivariate data mining processing.Results: Despite several factors affected BPD development in univariate analysis, gestational age, PD3 haemoglobin level and frequency of RBCT were found to be the independent predictors of BPD in multivariate analysis. The haemoglobin&lt;155 g/L in the PD3 predicted moderate/severe BPD with 60% sensitivity and 88% specificity(AUC 0.80). Having received at least one RBCT during the first three postnatal weeks had AUC 0.81(sensitivity 0.91,and specificity 0.81). During hospitalisation, more than four RBCT predicted moderate/severe BPD with 0.83 sensitivity and 0.93 specificity(AUC0.96). A model including gestational age, PD3 haemoglobin value, and number of RBCT predicted BPD risk with 87% sensitivity and 86% precision using data mining methods.Conclusion: Results emphasise that even just one blood transfusion in the first weeks is an independent risk factor for BPD. Even though BPD is multifactorial, initial haemoglobin value and RBCT frequency may serve as non-invasive and practical parameters to estimate BPD development risk.</p

Novel Uses of Red Mud in Textile Wastewater Treatment, Dyeing, and Concrete Production

Optimum conditions for the reusability of red mud were explored testing both dried and HCl-activated red mud as a coagulant in the treatment of dyehouse wastewater. Treated dyehouse wastewater was further reused in five dyebaths with different mixture ratios of distilled water (D) and treated wastewater (W) for dyeing fabrics at three color strengths of three reactive dyes. Sludge obtained from the optimum dosage of HCl-activated red mud was tested for its reuse potential in the production of concrete. The best color removal efficiency occurred using 1 g/L dried red mud at pH 12 and 120 mg/L HCl-activated red mud at pH 12. The best color yield was obtained with a textile dyeing treatment of D50/W50 with 2% color strength when dyehouse wastewater was treated with HCl-activated red mud. Concrete samples with an addition ratio of 2% HCl-activated red mud sludge had the slightly highest compressive strength. The reuses of HCl-activated red mud and its sludge appear to be a promising alternative to some conventional treatments of dye wastewater, dyeing, and concrete production.Namik Kemal UniversityNamik Kemal University [NKUBAP 00.17.AR.12.02]Authors would like to thank Namik Kemal University for funding this research (Project grant no: NKUBAP 00.17.AR.12.02) and two anonymous reviewers for their invaluable suggestions