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Article ; Online: Farklı Derece-Gün Bölgelerindeki Şehirler İçin Optimum Eğim Açısının Belirlenmesi

Ahmet ÇAĞLAR

Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Vol 22, Iss 2, Pp 849-

2018 Volume 854

Abstract: Güneş enerjili sistemlerin tasarımı yapılırken güneş ışınlarından en iyi şekilde yararlanabilmek için güneş kollektörleri güneşe karşı doğru açıda yerleştirilmelidir. Bu şekilde daha fazla güneş ışınımının güneş kollektörü yüzeyine dik gelmesi ... ...

Abstract	Güneş enerjili sistemlerin tasarımı yapılırken güneş ışınlarından en iyi şekilde yararlanabilmek için güneş kollektörleri güneşe karşı doğru açıda yerleştirilmelidir. Bu şekilde daha fazla güneş ışınımının güneş kollektörü yüzeyine dik gelmesi sağlanmaktadır. Güneş geliş açıları, bölgenin coğrafik yapısına ve zamana bağlı olarak değişmektedir. Bu değişimlerin etkisini minimize etmek için güneş kollektörü belirli bir dönem boyunca o döneme uygun olacak şekilde optimum bir açıyla yerleştirilmelidir. Bu çalışmada güneş enerjili sistemlerde kollektörlerden yıl boyunca en iyi şekilde yararlanılabilmesi için kollektörün eğim açılarının çeşitli derece-gün bölgeleri için optimum değerleri hesaplanmıştır. Bunun için farklı derece-gün bölgelerinden dört şehir (İstanbul, Ankara, Erzurum, Adana) seçilmiştir ve her bir şehir için yılın her ayında kullanılabilecek optimum eğim açıları, teorik hesaplama ve Hottel & Woertz metotları ile ayrı ayrı belirlenmiş ve birbirleriyle karşılaştırılmıştır. Sonuçlar incelendiğinde, teorik hesaplama metodu ile bulunan en yüksek optimum eğim açısının 56° ile Aralık ayında Erzurum ilinde, en düşük açının ise 12° ile Haziran ayında Adana ilinde gerçekleştiği görülmektedir. İki ayrı metotla hesaplanan optimum eğim açıları arasında en büyük fark İstanbul ilinde Ocak ayında .3 olarak gerçekleşirken, en düşük fark Ankara ve Erzurum illerinde Temmuz ayında %4 olarak gerçekleşmiştir. Tüm şehirler ve tüm aylar hesaba katıldığında, iki yöntem arasındaki ortalama farkın .64 olduğu görülmüştür.
Keywords	Güneş kollektörü ; Eğim açısı ; Güneş ışınımı ; Teorik hesaplama ; Derece-gün bölgeleri ; Agriculture ; S ; Agriculture (General) ; S1-972 ; Technology (General) ; T1-995
Language	English
Publishing date	2018-08-01T00:00:00Z
Publisher	Suleyman Demirel University
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Investigation of Wind Characteristics for Antalya Region by Using Weibull Distribution

Ahmet Caglar

Cumhuriyet Science Journal, Vol 38, Iss 4, Pp 156-

2017 Volume 164

Abstract: The most widely used statistical method that is used to determine the wind energy potential for a specific region is Weibull distribution or probability function. Using two-parameter Weibull distribution function, wind characteristics such as mean wind ... ...

Abstract	The most widely used statistical method that is used to determine the wind energy potential for a specific region is Weibull distribution or probability function. Using two-parameter Weibull distribution function, wind characteristics such as mean wind speed and mean wind power can be forecasted. In this study, the mean wind speed and wind power potential for Antalya are determined using Graphical, Moment and Maximum Likelihood methods with the help of the data taken from Antalya-Elmalı Meteorological Station. In this way, predicting the wind energy potential of Antalya region, it is discussed whether the possible installation of a wind power plant is feasible or not in this area. The results obtained are evaluated by using error analysis methods that are the Coefficient of Determination (R2) and Root Mean Squares Error (RMSE).
Keywords	rüzgâr hızı ; rüzgâr gücü ; weibull dağılımı ; grafik yöntemi ; moment yöntemi ; wind speed ; wind power ; weibull distribution ; graphical method ; moment method ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Science ; Q ; Science (General) ; Q1-390
Subject code	551
Language	English
Publishing date	2017-12-01T00:00:00Z
Publisher	Cumhuriyet University
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: The effect of personal protective equipment on cardiac compression quality

Muhammet Hacımustafaoğlu / Ahmet Çağlar / Berkant Öztürk / İlker Kaçer / Kemal Öztürk

African Journal of Emergency Medicine, Vol 11, Iss 4, Pp 385-

2021 Volume 389

Abstract: Introduction: Cardiac compression is a cumbersome procedure. The American Heart Association suggests switching of cardiopulmonary resuscitation (CPR) provider every 2 min to prevent any decrease in resuscitation quality. High quality CPR is associated ... ...

Abstract	Introduction: Cardiac compression is a cumbersome procedure. The American Heart Association suggests switching of cardiopulmonary resuscitation (CPR) provider every 2 min to prevent any decrease in resuscitation quality. High quality CPR is associated with improved outcomes. Previous studies have highlighted the difficulties in providing high quality CPR particularly while wearing personal protective equipment (PPE). This study aimed to evaluate the impact of personal protective equipment (PPE) use on CPR quality in prehospital cardiac arrest situations. Methods: In this prospective simulation study, we compared the cardiac compression qualities and fatigue rates among prehospital health care professionals (HCPs) who were or were not using PPE. Results: A total of 76 prehospital HCPs comprising 38 compression teams participated in this study. The mean compression rate was 117.71 ± 8.27/min without PPE and 115.58 ± 9.02/min with PPE (p = 0.191). Overall compression score was 86.95 ± 4.39 without PPE and 61.89 ± 14.43 with PPE (p < 0.001). Post-cardiac compression fatigue score was 4.42 ± 0.5 among HCPs who used their standard uniform and 7.74 ± 0.92 among those who used PPE (p < 0.001). The overall compression score difference between the two conditions was 25.05 ± 11.74 and the fatigue score difference was 3.31 ± 0.98. Discussion: PPE use is associated with decreased cardiac compression quality and significantly higher fatigue rates than those associated with the use of standard uniforms. Routine use of mechanical compression devices should be considered when PPE is required for out-of-cardiac arrests.
Keywords	Cardiac compression ; Fatigue ; Mechanic compression device ; Prehospital cardiac arrest ; Prehospital healthcare professionals ; Medicine ; R ; Medicine (General) ; R5-920
Language	English
Publishing date	2021-12-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
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Article ; Online: Complications, and requirement of opioid use after rib fractures, an analysis of 1074 patients

Kemal Öztürk / Ahmet Çağlar / Mehmet Ali Eryazğan / İlker Kaçer

Journal of Contemporary Medicine, Vol 11, Iss 3, Pp 352-

2021 Volume 356

Abstract: Aim: This study was aimed to evaluate the risk factors, associated complications, opioid requirements, and mortality rates of rib fractures. Materials and Methods: Patients with rib fractures who were admitted to the emergency department between January ... ...

Abstract	Aim: This study was aimed to evaluate the risk factors, associated complications, opioid requirements, and mortality rates of rib fractures. Materials and Methods: Patients with rib fractures who were admitted to the emergency department between January 1, 2016, and December 31, 2020, were retrospectively analyzed. Patients' demographic data, rib fracture characteristics, trauma mechanism, associated complications, length of stay in the hospital, and in-hospital mortality were recorded. Results: A total of 1074 patients were included in the study. Most of the patients were male (n = 748, 69.6%) and the mean age was 53.89 ± 15.31 years. The mean number of fractured ribs was 3.65 ± 2.06. All patients with diaphragm laceration, atelectasis, pneumonia, ARDS, pneumomediastinum, lung herniation, flail chest, and empyema had six or more rib fractures. Comparison of died and survived patients showed statistically significant differences for age, gender, side of rib fracture, number of fractured ribs, and accompanying another organ injury. A moderate-strong correlation was found between the number of fractured ribs and pneumothorax, hemothorax, chest tube, opioid use, and length of stay in the hospital. Conclusion: Increased number of fractured ribs were associated with increased complications, opioid use, and length of stay in the hospital. The mortality rate was 8.8% in patients with 6 or more fractures. In-vehicle traffic accidents were the most common mechanism. Many of the rib fractures can be prevented if the measures are improved.
Keywords	flail chest ; hemothorax ; opioid use ; pneumothorax ; rib fracture ; hemotoraks ; kaburga kırığı ; opioid kullanımı ; pnömotorax ; yelken göğüs ; Medicine ; R
Subject code	610
Language	English
Publishing date	2021-05-01T00:00:00Z
Publisher	Rabia Yılmaz
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Factors Related to Mortality in Occupational Injuries

Ahmet Çağlar / İlker Kaçer / Muhammet Hacımustafaoğlu / Berkant Öztürk / Sema Öztürk / Nazire Belgin Akıllı

Eurasian Journal of Emergency Medicine, Vol 21, Iss 1, Pp 20-

Five-Year Experience

2022 Volume 27

Abstract: Aim:This study aims to evaluate factors related to mortality in occupational injuries admitted to emergency departments (EDs).Materials and Methods:Patients admitted to the ED because of occupational injuries between January 2015 and December 2019 were ... ...

Abstract	Aim:This study aims to evaluate factors related to mortality in occupational injuries admitted to emergency departments (EDs).Materials and Methods:Patients admitted to the ED because of occupational injuries between January 2015 and December 2019 were retrospectively analyzed. The first admission to the ED following each occupational injury was recorded.Results:Three thousand and two hundred and forty patients included in the study. We observed that occupational injuries decreased with age and were more common in males (91.4%), in agriculture (27.6%) and construction (24.9%) industries, and in summer (29.9%) and spring (28%). Additionally, occupational injuries generally occurred due to falling (31.8%) and caused superficial injuries (39.8%). A majority of patients (83.6%) were discharged from the ED. Three hundred and fifty-one and 156 patients were hospitalized in the surgical clinics and intensive care unit respectively. A total of 25 and 18 patients died in ED and intensive care unit, respectively (total 43 deaths, 1.32%). Moreover, increasing age (p=0.000), construction industry (p=0.008), immigration (p=0.037) and working in night shifts (p=0.009) are independent risk factors related to mortality after occupational injuries.Conclusion:The labor conditions of immigrants as well as of those working at night shifts and in construction industry should be supervised. Their job security should be improved and working without social security should not be allowed.
Keywords	construction industry ; emergency department ; immigration ; mortality ; night shift ; occupational injuries ; Medicine ; R ; Medical emergencies. Critical care. Intensive care. First aid ; RC86-88.9
Language	English
Publishing date	2022-03-01T00:00:00Z
Publisher	Galenos Yayinevi
Document type	Article ; Online
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Article ; Online: Clinical Validation and Evaluation of a Colorimetric SARS-CoV-2 RT-LAMP Assay Against RT-PCR.

Erdem, Murat / Andaç-Özketen, Ayşe / Özketen, Ahmet Çağlar / Karahan, Gizem / Tozluyurt, Abdullah / Palaz, Fahreddin / Alp, Alpaslan / Ünal, Serhat

Infectious diseases & clinical microbiology

2023 Volume 5, Issue 2, Page(s) 136–143

Abstract: Objective: Reverse transcriptase loop-mediated isothermal amplification (RT-LAMP) is one of the time-saving, accurate, and cost-effective alternative methods to real-time polymerase chain reaction (RT-PCR). This study aimed to identify the robustness of ...

Abstract	Objective: Reverse transcriptase loop-mediated isothermal amplification (RT-LAMP) is one of the time-saving, accurate, and cost-effective alternative methods to real-time polymerase chain reaction (RT-PCR). This study aimed to identify the robustness of a colorimetric RT-LAMP assay kit that we developed, detecting SARS-COV-2 viral RNA within 30 minutes using a primer set special to the N gene against RT-PCR, the gold standard. Materials and methods: Both symptomatic and asymptomatic subjects were included from a single university hospital and the status of both RT-PCR and RT-LAMP assay results were compared, and the consistency of these two assays was analyzed. Results: We showed that the RT-LAMP and RT-PCR assay results confirmed 90% consistency. When we consider the epidemiologic, clinical, and radiologic evaluation, the consistency reached 97%. Conclusion: The results revealed that the colorimetric RT-LAMP assay was efficient, robust, and rapid to be used as in vitro diagnostic tool to display competitiveness compared with RT-PCR.
Language	English
Publishing date	2023-06-23
Publishing country	Turkey
Document type	Journal Article
ISSN	2667-646X
ISSN (online)	2667-646X
DOI	10.36519/idcm.2023.210
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Article ; Online: Selenophene-Modified Boron Dipyrromethene-Based Photosensitizers Exhibit Photodynamic Inhibition on a Broad Range of Bacteria.

Ozketen, Ahmet Caglar / Karaman, Osman / Ozdemir, Alara / Soysal, Isil / Kizilenis, Caglayan / Nteli Chatzioglou, Aisegkioul / Cicek, Yagiz Anil / Kolemen, Safacan / Gunbas, Gorkem

ACS omega

2022 Volume 7, Issue 38, Page(s) 33916–33925

Abstract: Microorganisms are crucial for human survival in view of both mutualistic and pathogen interactions. The control of the balance could be achieved by use of the antibiotics. There is a continuous arms race that exists between the pathogen and the ... ...

Abstract	Microorganisms are crucial for human survival in view of both mutualistic and pathogen interactions. The control of the balance could be achieved by use of the antibiotics. There is a continuous arms race that exists between the pathogen and the antibiotics. The emergence of multidrug-resistant (MDR) bacteria threatens health even for insignificant injuries. However, the discovery of new antibiotics is not a fast process, and the healthcare system will suffer if the evolution of MDR lingers in its current frequency. The cationic photosensitizers (PSs) provide a unique approach to develop novel, light-inducible antimicrobial drugs. Here, we examine the antimicrobial activity of innovative selenophene-modified boron dipyrromethene (BODIPY)-based PSs on a variety of Gram (+) and Gram (-) bacteria. The candidates demonstrate a level of confidence in both light-dependent and independent inhibition of bacterial growth. Among them, selenophene conjugated PS candidates (BOD-Se and BOD-Se-I) are promising agents to induce photodynamic inhibition (PDI) on all experimented bacteria:
Language	English
Publishing date	2022-09-16
Publishing country	United States
Document type	Journal Article
ISSN	2470-1343
ISSN (online)	2470-1343
DOI	10.1021/acsomega.2c02868
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Article: Puccinia striiformis

Wu, Nan / Ozketen, Ahmet Caglar / Cheng, Yu / Jiang, Wanqing / Zhou, Xuan / Zhao, Xinran / Guan, Yaorong / Xiang, Zhaoxia / Akkaya, Mahinur S

Frontiers in plant science

2022 Volume 13, Page(s) 1012216

Abstract: The obligate biotrophic ... ...

Abstract	The obligate biotrophic fungus
Language	English
Publishing date	2022-11-07
Publishing country	Switzerland
Document type	Journal Article ; Review
ZDB-ID	2613694-6
ISSN	1664-462X
ISSN	1664-462X
DOI	10.3389/fpls.2022.1012216
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Article ; Online: Increased levels of cell wall degrading enzymes and peptidases are associated with aggressiveness in a virulent isolate of Pyrenophora teres f. maculata.

Emir, Mahmut / Ozketen, Ahmet Caglar / Andac Ozketen, Ayse / Çelik Oğuz, Arzu / Huang, Mei / Karakaya, Aziz / Rampitsch, Christof / Gunel, Aslihan

Journal of plant physiology

2022 Volume 279, Page(s) 153839

Abstract: Pyrenophora teres f. maculata (Ptm) is a fungal pathogen that causes the spot form of net blotch on barley and leads to economic losses in many of the world's barley-growing regions. Isolates of Ptm exhibit varying levels of aggressiveness that result in ...

Abstract	Pyrenophora teres f. maculata (Ptm) is a fungal pathogen that causes the spot form of net blotch on barley and leads to economic losses in many of the world's barley-growing regions. Isolates of Ptm exhibit varying levels of aggressiveness that result in quantifiable changes in the severity of the disease. Previous research on plant-pathogen interactions has shown that such divergence is reflected in the proteome and secretome of the pathogen, with certain classes of proteins more prominent in aggressive isolates. Here we have made a detailed comparative analysis of the secretomes of two Ptm isolates, GPS79 and E35 (highly and mildly aggressive, respectively) using a proteomics-based approach. The secretomes were obtained in vitro using media amended with barley leaf sections. Secreted proteins therein were harvested, digested with trypsin, and fractionated offline by HPLC prior to LC-MS in a high-resolution instrument to obtain deep coverage of the proteome. The subsequent analysis used a label-free quantitative proteomics approach with relative quantification of proteins based on precursor ion intensities. A total of 1175 proteins were identified, 931 from Ptm and 244 from barley. Further analysis revealed 160 differentially abundant proteins with at least a two-fold abundance difference between the isolates, with the most enriched in the aggressive GPS79 secretome. These proteins were mainly cell-wall (carbohydrate) degrading enzymes and peptidases, with some oxidoreductases and other pathogenesis-related proteins also identified, suggesting that aggressiveness is associated with an improved ability of GPS79 to overcome cell wall barriers and neutralize host defense responses.
MeSH term(s)	Peptide Hydrolases ; Proteome ; Ascomycota ; Cell Wall ; Hordeum
Chemical Substances	Peptide Hydrolases (EC 3.4.-) ; Proteome
Language	English
Publishing date	2022-11-01
Publishing country	Germany
Document type	Journal Article
ZDB-ID	283647-6
ISSN	1618-1328 ; 0176-1617
ISSN (online)	1618-1328
ISSN	0176-1617
DOI	10.1016/j.jplph.2022.153839
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Article ; Online: In-depth secretome analysis of Puccinia striiformis f. sp. tritici in infected wheat uncovers effector functions.

Ozketen, Ahmet Caglar / Andac-Ozketen, Ayse / Dagvadorj, Bayantes / Demiralay, Burak / Akkaya, Mahinur S

Bioscience reports

2020 Volume 40, Issue 12

Abstract: The importance of wheat yellow rust disease, caused by Puccinia striiformis f. sp. tritici (Pst), has increased substantially due to the emergence of aggressive new Pst races in the last couple of decades. In an era of escalating human populations and ... ...

Abstract	The importance of wheat yellow rust disease, caused by Puccinia striiformis f. sp. tritici (Pst), has increased substantially due to the emergence of aggressive new Pst races in the last couple of decades. In an era of escalating human populations and climate change, it is vital to understand the infection mechanism of Pst in order to develop better strategies to combat wheat yellow disease. The present study focuses on the identification of small secreted proteins (SSPs) and candidate-secreted effector proteins (CSEPs) that are used by the pathogen to support infection and control disease development. We generated de novo assembled transcriptomes of Pst collected from wheat fields in central Anatolia. We inoculated both susceptible and resistant seedlings with Pst and analyzed haustoria formation. At 10 days post-inoculation (dpi), we analyzed the transcriptomes and identified 10550 Differentially Expressed Unigenes (DEGs), of which 6072 were Pst-mapped. Among those Pst-related genes, 227 were predicted as PstSSPs. In silico characterization was performed using an approach combining the transcriptomic data and data mining results to provide a reliable list to narrow down the ever-expanding repertoire of predicted effectorome. The comprehensive analysis detected 14 Differentially Expressed Small-Secreted Proteins (DESSPs) that overlapped with the genes in available literature data to serve as the best CSEPs for experimental validation. One of the CSEPs was cloned and studied to test the reliability of the presented data. Biological assays show that the randomly selected CSEP, Unigene17495 (PSTG_10917), localizes in the chloroplast and is able to suppress cell death induced by INF1 in a Nicotiana benthamiana heterologous expression system.
MeSH term(s)	Fungal Proteins/genetics ; Fungal Proteins/metabolism ; Gene Expression Profiling ; Gene Expression Regulation, Fungal ; Gene Regulatory Networks ; Host-Pathogen Interactions ; Plant Diseases/genetics ; Plant Diseases/microbiology ; Plant Leaves/metabolism ; Plant Leaves/microbiology ; Plant Proteins/genetics ; Plant Proteins/metabolism ; Puccinia/genetics ; Puccinia/metabolism ; Puccinia/pathogenicity ; Secretory Pathway ; Transcriptome ; Triticum/genetics ; Triticum/metabolism ; Triticum/microbiology ; Virulence
Chemical Substances	Fungal Proteins ; Plant Proteins
Language	English
Publishing date	2020-12-04
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	764946-0
ISSN	1573-4935 ; 0144-8463
ISSN (online)	1573-4935
ISSN	0144-8463
DOI	10.1042/BSR20201188
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