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Assessment Of Global Scrap Iron Trade Relations Using Social Network Analysis Method
No full textThe fact that the world's scarce resources will one day run out leads countries to use
these resources more efficiently. Due to the high energy and resource consumption
during the extraction and processing of iron ore from the soil, the trade of scrap iron has
gained importance in recent years. In this study, it is aimed to examine the international
scrap iron trade relations. With the social network analysis method, trade relations in
this field were revealed and the prestigious countries of the network were determined
and evaluations were made. As a result of the analysis, Germany, the Netherlands and
Belgium in 2010; In 2020, it has been observed that Turkey, the USA and the
Netherlands are the most central countries in the network. Turkey is the country with
the most inbound connections of the network in both 2010 and 2020. This situation
makes the country the most important export market. The USA and Germany are the
countries with the most outgoing connections and are the most important suppliers in
the scrap iron trade
Rapid molecular detection and isolation of canine distemper virus in naturally infected dogs
No full textThe canine distemper virus (CDV), which infects dogs and a broad range of animal species, remains a serious concern in Türkiye and across the world. The current study shows that CDV can be detected and isolated rapidly and specifically in naturally infected dogs. Whole blood, nasal swab, ocular swab, rectal swab, and urine samples from 50 stray dogs were used in the study (n = 250). The presence of the CDV genome was confirmed in 105 (42%) samples using one-Step real-time RT-PCR. In total, 39 dogs were diagnosed with CDV infection based on the detection of cytopathic effects in MDCK, which was verified by the fluorescent antibody technique. A total of 12 one-Step real-time RT-PCR negative samples, consisting of 4 rectal swabs and 8 urine samples, were found to be positive by virus isolation. Blood, nasal swab, ocular swab (P<0.01, r = 1), rectal swab (P<0.01, r = 0.844), and urine samples (P<0.01, r = 0.697) all showed positive correlations in the tests for viral genome detection and virus isolation. CPE levels of high 37 (31.62%), medium 26 (22.23%) and low 54 (46.15%) were detected in a total of 117 (46.8%) samples with viral growth in cell culture. The highest CPE levels detected by FAT were for rectal swab and urine samples. In conclusion, the one-step real-time RT-PCR method on rectal swab samples proved to be a very sensitive method for the rapid and reliable CDV detection. Besides, non-modified MDCK can be used to isolate CDV from naturally infected dogs
Diverse Task Classification from Activation Patterns of Functional Neuro-Images Using Feature Fusion Module
No full textOne of the emerging fields in functional magnetic resonance imaging (fMRI) is the decoding of different stimulations. The underlying idea is to reveal the hidden representative signal patterns of various fMRI tasks for achieving high task-classification performance. Unfortunately, when multiple tasks are processed, performance remains limited due to several challenges, which are rarely addressed since the majority of the state-of-the-art studies cover a single neuronal activity task. Accordingly, the first contribution of this study is the collection and release of a rigorously acquired dataset, which contains cognitive, behavioral, and affective fMRI tasks together with resting state. After a comprehensive analysis of the pitfalls of existing systems on this new dataset, we propose an automatic multitask classification (MTC) strategy using a feature fusion module (FFM). FFM aims to create a unique signature for each task by combining deep features with time-frequency representations. We show that FFM creates a feature space that is superior for representing task characteristics compared to their individual use. Finally, for MTC, we test a diverse set of deep-models and analyze their complementarity. Our results reveal higher classification accuracy compared to benchmarks. Both the dataset and the code are accessible to researchers for further developments
A Scale Development Study To Determıne Psychosocıal Evaluatıons For Seafarers
No full textSeafarers who spend long periods at sea and therefore have little contact with life on
land face various difficulties because of their strenuous working conditions. While
identifying those challenges and carrying out psychosocial interventions has the
potential to increase the psychosocial well-being of seafarers, there is no scale to
determine the psychosocial risks that seafarers contend with in the course of their work.
This study was conducted with the aim of identifying the elements of the psychosocial
risks they face so such a scale can be developed. A preliminary form was prepared for
that purpose. Once the validity reliability rate of the form was determined on the basis
of feedback, it was submitted to 735 members of the Turkish Seafarers ' Union residing
in Istanbul and the resultant data was analyzed with SPSS and AMOS. As a result of the
exploratory factor analysis, 3 factors named “Psychological/Spiritual Problems”,
“Problems Related to Family and Environment” and “Problems Related to Work
Environment” and 26 items were determined. It was determined that the total variance
explained was 60.02%. In the confirmatory factor analysis performed, the structure
consisting of 26 items and 3 sub-dimensions provided good fit values. As a result, it was
concluded that a 3-factor Psychosocial Evaluation Scale for Seafarers consisting of 26
items is a valid and reliable scale
Acute Kidney Injury Is Associated with Higher Serum Cys-C and NGAL Concentrations, and Risk of Mortality in Premature Calves with Respiratory Distress Syndrome
No full textSimple Summary This study aimed to evaluate hypoxic acute kidney injury in premature calves with respiratory distress syndrome using kidney-specific biomarkers. Ten-term healthy calves and 70 premature calves with respiratory distress syndrome were included in the study. At admission and 72 h, arterial blood gas analysis to evaluate hypoxia and serum blood urea nitrogen, creatinine, phosphorus, cystatin-C, neutrophil gelatinase-associated lipocalin, uromodulin, and liver-type fatty acid-binding protein concentrations were measured for evaluation of kidney functions. Acute renal failure developed in 38.5% of premature calves with respiratory distress syndrome. The mortality risk in premature calves with acute renal failure was four times higher than in those without acute kidney injury. In addition, serum cystatin-C and neutrophil gelatinase-associated lipocalin concentrations were significantly higher in calves with acute kidney injury than those without. In conclusion, it causes acute renal failure in premature calves with respiratory distress syndrome. Cystatin-C and neutrophil gelatinase-associated lipocalin were found to be useful markers of hypoxic-acute kidney injury in premature calves with respiratory distress syndrome. The purpose of the present study was to establish the development of acute kidney injury (AKI) and evaluate the usefulness of kidney-specific biomarkers in diagnosing AKI in premature calves with respiratory distress syndrome (RDS). Ten-term healthy and 70 premature calves with RDS were enrolled. Clinical examination, blood gases, and chemical analysis were performed at admission and 72 h. Serum concentrations of blood urea nitrogen (BUN), creatinine (Cre), phosphorus (P), cystatin-C (Cys-C), neutrophil gelatinase-associated lipocalin (NGAL), uromodulin (UMOD), and liver-type fatty acid-binding protein (L-FABP) were measured to evaluate kidney injury. Our findings showed that 38.5% of the premature calves with RDS developed AKI. The RDS-AKI group had a 4-fold higher mortality risk than the RDS-non-AKI group. Cys-C, with 90% and 89% specificity, and NGAL, with 100% sensitivity and 85% specificity, were the most reliable biomarkers to determine AKI in premature calves. The usefulness of any biomarker to predict mortality was not found to be convincing. In conclusion, AKI can develop as a consequence of hypoxia in premature calves and may increase the risk of mortality. In addition, serum Cys-C and NGAL concentrations may be useful in the diagnosis of AKI in premature calves with RDS
A case of Monkeypox in a baby monkey
No full textDespite having a low fatality rate in monkeys, monkeypox remains an important disease because of its zoonotic potential. The aim of this study is to describe the clinical, pathological, ultrastructural and virological findings of the first monkeypox case diagnosed in a baby monkey in Türkiye with unknown transmission. A monkeypox infection was detected in a 1-month-old, female, baby monkey born in Antalya Zoo and died with skin lesions. It was reported that the baby's mother did not care for and caregivers took care of the cub, and skin lesions on the hands of the caregivers and responsible veterinarian were reported. Necropsy, histopathology, electron microscopy and chorioallantoic membrane (CAM) test were performed. Typical cutaneous and pulmonary poxvirus finding in a baby monkey was described in this case. CAM results firstly reported in a monkeypox case. Because of the zoonotic potential of illness, monkey colonies, particularly in zoos, must be controlled with vigilance. This is the first monkeypox report in a baby monkey in Türkiye
Expression and distribution of GPR55 and GPR119 during the development of rat testis
No full textG Protein-Coupled Receptors, GPR55 and GPR119 are widely distributed throughout the body and exert important biological functions. However, little is known about their roles in testis. This study aimed to examine the expression and distribution of GPR55 and GPR119 during the development of the rat testis. Sixty male Sprague Dawley rats (180–240 g) were divided into 10 groups as 7, 14, 21, 28, 35, 42, 49, 56, 63, and 70 postnatal days of age (PND) (six animals per group). The testicular expression of GPR55 and GPR119 has been investigated by immunohistochemistry, Western blot, and quantitative RT-PCR methods. We observed that GPR55 and GPR119 are expressed throughout the rat testis development from PND 7 to 70. However, no difference was observed between the groups in terms of expression levels, except for GPR55 mRNA expression in the group of PND 7. Immunohistochemistry analysis showed that GPR55 is expressed in spermatids and spermatocytes in the mid-term tubules and spermatocytes in the late-stage tubules in groups of PND 56, 63, and 70. For GPR119, very intense positivity was observed only in spermatids in the mid-term (stage VII-VIII) tubules in the groups of PND 56, 63, and 70. No significant difference was observed in the number of GPR55 and GPR119 positive cells in testes from PND 56 through PND 70. Taken together, both GPR55 and GPR119 receptors are expressed throughout the rat testis development (PND 7 to 70). These results suggest that GPR55 and GPR119 are involved in the modulation of male reproductive function
Mediating Role Of Optimism In The Effect Of Informal Communication On Business Skill
No full textIn this study, it is aimed to investigate the mediating role of optimism in the effect of
informal communication on job resourcefulness. In the study, a questionnaire was
applied to 84 people through convenience sampling to the employees of a shopping
center operating in Isparta. Data were analyzed using SPSS 25.0 Package Program.
Descriptive analyzes, t-test, anova, correlation, regression analyzes were performed and
the mediation effect was examined with Bootstrapp Regression analysis with SPSS
Process Module. According to the results of the analysis; on business resourcefulness of
informal communication; It has been determined that informal communication has a
significant and positive effect on optimism and optimism on job resourcefulness.
Informal communication, business resourcefulness and optimism, which cover the
subjects of the study, have been studied together with different subjects in other studies,
but the study is unique in that it covers these three subjects together. As a result of the
study, it was determined that optimism had a mediating role in the effect of informal
communication on job resourcefulness
Effects of Climate Change on the Habitat Suitability and Distribution of Endemic Freshwater Fish Species in Semi-Arid Central Anatolian Ecoregion in Turkiye
No full textClimate change is affecting freshwater ecosystems globally, particularly those in semi-arid and arid regions. The Central Anatolian Ecoregion (CAE) in Turkiye has a semi-arid climate and is home to numerous endemic fish species. We used species distribution modelling to elucidate the distribution of sixteen endemic fish species in CAE and predicted their potential distributions for 2041-2060 and 2081-2100 based on the CMIP6 climate model. Half of the species are predicted to experience a significant loss of climatically suitable areas. Anatolichthys fontinalis, Gobio gymnostethus, Gobio hettitorum, and Pseudophoxinus burduricus will face a complete loss of suitable areas by 2081-2100 under a high emissions climate scenario, whereas Cobitis bilseli, Egirdira nigra, Gobio intermedius, and Squalius anatolicus will experience a significant loss. The other eight species can potentially benefit from climate warming if all other stressors remain equal. Anthropogenic stressors, such as water abstraction for irrigation, pollution, invasive species introductions, and dam construction, are already putting endemic fish populations in CAE under extreme pressure. Climate change is expected to exacerbate these threats. Regular monitoring of freshwater ecosystems and fish fauna in the CAE and protecting the region from key anthropogenic stressors are recommended to successfully conserve these endemic freshwater fishes under climate change
Characterization of bipolar ultrametric spaces and fixed point theorems
No full textUltrametricity condition on bipolar metric spaces is considered and a geometric characterization of bipolar ultrametric spaces is given. Also embedding a bipolar ultrametric space into a pseudo-ultrametric space is discussed and, some conditions are found to be able to embed them into an ultrametric space. Finally, some fixed point theorems on bipolar ultrametric spaces are proven