Recent publications
The education is not only a major sector nowadays, but it is also an investment by parents for their children. Thisstudy aims to investigate the effect of the dimensions (reliability, tangibility, responsiveness, assurance andempathy) of service quality in primary education on parent satisfaction. This research is conducted in a publicprimary school and self-administered questionnaire is used to collect the related data. Data is collected based onSERVQUAL model through distributing 400 questionnaires to randomly selected parents in Celal Av?ar PrimarySchool in Turkey. The results of this study show that the tangibility, the reliability, the assurance and the empathyof service quality are important dimensions and they have significant positive effect on parent satisfaction.
The article aims to consider world vision of medieval (VI-IX centuries) Turkic tribes on nature and human being and the issues, which impact on the emergence of their world image on nature, human being as well as their perceptions in this case. In this regard, the paper analyzes the concepts on territory, borders and bound in the Turks` society, the indicator of the boundaries for Turkic tribes and the way of expression the world concept on nature and human being of above stated nations. The research findings show that Turks as their descendants Kazakhs had a distinctive vision on environment and the relationship between human being and nature. Human being and nature were conceived as a single organism. Relationship of Turkic mythic outlook with real historical tradition and a particular geographical location captures the scale of the era of the birth of new cultural schemes. It was reflected in the various historical monuments, which characterizes the Turkic civilization as a complex system. On this basis the ideological model of the Turks was elevated to the rank of law, the observance of which was compulsory.
In recent years, one of the hottest debates on Turkish economy is the conflict on resource allocation between real estate and industry sectors. The debate was so intense that ex-minister of Economy Mr. Ali Babacan declared his opinions. Mr. Babacan’s statements about the creation of fixed capital by the private sector is not promising, and private sector fixed capital expenditures are not in the desired level. This situation is due to the limited economic growth and future economic growth. In this study, we have investigated whether Mr. Babacan’s statement is right or not. We have discussed the reliability of the measurement of real estate output as Gruneberg and Folwell did in 2013 and Ruddock did in 2002. That could be concluded that we agree with ex-minister of Economy Mr. Babacan’s comments regarding to imbalances among sectors are threatening Turkish economy’s stability. The imbalances are favoring residential real estate investments and consequently the country is exposed to currency risk.
Arrogant individuals are individuals who tend to position themselves in the center, both in their daily lives and in organizational life, and their relationships with others. While they exaggerate their importance, they tend to take over success in any case. Arrogance, which has the potential to adversely affect the organizational climate, can turn into an obstacle to the state of collective engagement and have a devastating effect on the science discipline, for example, in the academic community. In this context, this study aims to examine the arrogance orientations of academicians working in universities, which are higher education organizations. For this purpose, phenomenology, which is a qualitative research design, was used, and thirteen participants consisting of undergraduate and graduate students and graduates were reached with the maximum variation sampling method. The data obtained through focus group interviews using semi-structured questions were analyzed in terms of content using the Maxquda qualitative data analysis program. Findings obtained as a result of the analyses reveal that the arrogance orientations of academicians were gathered under the dimensions of individuality, comparison, contempt, and discrediting. Based on these results, it is possible to indicate that it affects the academic organization climate negatively and feeds on individuality. In this context, it can contribute to reducing the potentially destructive effects of arrogance by encouraging collective work in academic organizations.
With additive manufacturing (AM) technologies completely changing the traditional design and manufacturing processes, there is a need for reinterpretation and redefinition of many design methods and constants that have been applied within the scope of the production system and the material used, and new process and design strategies are needed. In this context, in this study, an algorithm has been developed for the laser powder bed fusion (LPBF) system, an industrial metal AM technology, in which the process and its stages are defined. In the algorithm, the stages from the formation of the design idea to the finalization of the production are discussed. The designer and engineer who wants to develop a product to be produced in the LPBF production system can be produced by following the relevant stages through the algorithmic model, and product development is supported without the need for multiple revision stages. With the algorithm, it is aimed to define the approach of AM-LPBF technology that challenges the traditional design theory and methodology within the scope of certain criteria brought by the technology and to systematize the process data. It can be stated that this process modeling and algorithm developed in the field of AM offers innovation within the scope of preventing inefficient revision processes, quality production and fast solution generation. Within the scope of the developed algorithm, it is aimed at the experts in the field to complete the design and production processes that fit the production system with fewer revision stages without compromising product quality.
Today, there is an increasing concern and effort for protection, conservation, and restoration of cultural heritage materials. Non-invasive analytical methodologies such as Raman spectroscopy offers various advantages such as high speed, robust identification, low cost, and in-site analysis. Previous contributions highlighted the potential of Raman spectroscopy combined with multivariate statistics for identification and quality evaluation of cultural heritage materials such as paints, fiber, dyes, woods, stones, inks, and textile materials. Especially, application of chemometrics and multivariate statistics algorithms opens new horizons for scientists and inspectors. In conclusion, the paper provided an overview of the state-of-the-art uses of multivariate statistically equipped Raman spectroscopy methods for evaluation of cultural heritage and art materials with illustrations from previous research studies.
Calixarenes, which can be functionalized in a wide range of derivatives, are one of the chemicals that should be considered for safe energy storage. This research focused on utilization Density Functional Theory (DFT) method to investigate the hydrogen sensing and adsorption characteristics of two distinct calix[4]arene compounds and their corresponding metal complexes. In the study, electronic sensor properties were investigated by using different approaches. In addition, the dynamic stability was determined by Molecular dynamics (MD) calculations. Perturbation theory analysis has revealed the importance of the relationship between Fe and S atoms. The adsorption energy on the C1 structure with the best adsorption ability was calculated as −10.3 kJ/mol. According to RDG analysis, weak van der Waals interactions play a role in adsorption. The C2‐Fe complex with a substantial decrease in the HOMO–LUMO gap has been identified and explained as an applicant material for electronic sensor against hydrogen molecule. Moreover, it was also determined that the C2‐Fe complex has work function type gas sensor property against hydrogen molecule. According to the results, metal‐calixarene complexes can play an important role in hydrogen safety in the future.
Alzheimer's disease (AD), the most common age‐related neurodegenerative condition, is named after Alois Alzheimer and is marked by a progressive deterioration in memory, cognitive function, and behavior. Research has highlighted the importance of nonsteroidal anti‐inflammatory drugs (NSAIDs) in inhibiting the aggregation of amyloid β‐peptide (Aβ), a key feature of AD pathology. Ibuprofen, an NSAID from the propionic acid class, is widely used to manage osteoarthritis and rheumatoid arthritis, exhibiting strong anti‐inflammatory and antipyretic effects. However, the drug's acidic group limits its selectivity for cyclooxygenase (COX) enzymes and contributes to several adverse effects. This study aimed to modify the acidic moiety of ibuprofen into lactone (IBU‐O 1–4) and lactam (IBU‐I 1–3) derivatives to mitigate these side effects. The structural properties of the synthesized imidazolone (IBU‐I 1–3) and oxazolone (IBU‐O 1–4) derivatives were characterized through Q‐TOF LC‐MS, ¹H‐NMR, ¹³C‐NMR, and IR spectroscopy. Molecular docking studies followed by Ellman's method assessed the inhibitory effects of these compounds on acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), while an enzyme immunoassay (EIA) kit was used to evaluate their inhibition of cyclooxygenase‐2 (COX‐2).
Background
Shoulder injuries are prevalent in adolescent water polo (WP) players. Study aimed to determine whether preseason shoulder characteristics (range of motion [ROM], flexibility, and strength) and core endurance can identify athletes at risk of future shoulder injuries.
Hypothesis
Shoulder characteristics, including changes in ROM (internal rotation [IR], external rotation [ER], and total), strength (IR and ER), pectoralis minor flexibility, shoulder capsule flexibility, and core endurance, would be risk factors for shoulder reinjury in athletes with previous overuse injuries compared with noninjured athletes.
Study Design
Prospective cohort study.
Level of Evidence
Level 3.
Methods
At baseline, 53 male youth WP players (mean age, 16.6 ± 3.5 years) were assigned to Group 1 (with previous shoulder injuries [G1, n = 26]) and Group 2 (without previous shoulder injuries [G2, n = 27]). ROM, flexibility, strength, and core muscle endurance were assessed preseason. After a 12-month follow-up, players were again divided into those who developed new shoulder injuries (G3, n = 27) and those who remained healthy (G4, n = 26).
Results
Total of 26 players (49%) had previous shoulder injuries at baseline. At baseline, decreased pectoralis minor flexibility, IR, total ROM, and core endurance were found in players with a previous shoulder injury compared with players without a previous shoulder injury ( P < 0.05).
Conclusion
At baseline, a significant difference was present in proposed risk factors (shoulder and core endurance parameters) between players with and without a previous shoulder injury. Shoulder IR ROM and years of experience were significant predictors of shoulder injury. Early detection of modifiable proposed risk factors may help prevent reinjury in young athletes.
Clinical Relevance
Screening at an early age can help identify and address pre-existing injuries, support youth athletes’ return to sport after a shoulder injury, prevent new injuries, and improve performance.
This research delves into the evolution of Istanbul’s urban agenda, which has become increasingly intricate due to recent challenges. The city's planning paradigm has undergone a discernible shift, with heightened attention concerns like seismic resilience, sustainability, and the climate-change. The planning projections for the city have experienced significant changes, by the earthquakes 1999 and 2023, climate-change, and the pandemic in 2020. Although the pandemic is considered temporary, it has significant in bringing sustainable matters like living airier, greener areas, back to the city planning. In response to the latest challenges, particularly the earthquake, the city confronted an ecological dilemma, prompting proposal to relocate new housing areas to the Northern-forest. The city's northern development axis, planned a century ago by the French architect-urbanist Henri Prost, is being questioned today end to its limits for green-areas. Based on ongoing global discussion, on academical circles on the imperative, the historic city of Istanbul grapples with the contemporary problems sustainability and seismic considerations in its future planning endeavors. This study engages in discursive analyses while concurrently offering practical recommendations to address sustainability through the development of specific zoning arrangements focuses on dual research axis urban-based, and housing-based, laws, and regulations, also housing model, and typologies as missing part of the previous research. This study principally examines this problematic via zoning practices of Istanbul in the Henri Prost period from housing areas to the housing models and typologies. Also, globally, along with the new zoning, the old zoning laws, and regulations can be bring the agenda again in the context of sustainability to promote a balanced relationship between human, nature and sustainability goals. In conclusion, amid the recent challenges in the city, innovative suggestions for advanced zoning applications in pursuit of sustainability reveal a notable gap in the protection of green-areas, planning new settlements. Henri Prost’s master plans stand out for employing distinctive zoning techniques for each district, also offering specific housing models and typologies. Extending this methodology to green-areas presents a bridge the existing void. By presented potential case scenarios at the end of the study emphasizing the merits of integrating historical zoning practices into contemporary planning, it aims to stimulate discussions on holistic and forward-looking urban development strategies.
The goal of this study was to create a fermented probiotic fruit puree for lactose‐intolerant people, vegetarians, and infants over 6 months old. Fermented fruit purees were developed using apples, peaches, and bananas with lactic acid bacteria (LAB) strains: Lactobacillus plantarum subsp. plantarum (S5), Lactobacillus fermentum strain w8 (S10), and Lactobacillus pentosus strain ml104 (S14). Different fruit puree formulations were produced using three strains, two inoculation ratios (4% and 5%), and two fermentation durations (24 and 48 h). The physicochemical parameters (pH, total soluble solids, and color), total phenols content (TPC), total antioxidant capacity, bacterial viability, volatile aroma profile (VAP), and individual phenolic compound profile of fruit puree fermented for both 24 and 48 h were compared with the unfermented (control) purees. The results of VAP were evaluated via PROMETHEE and cluster analysis. Time of fermentation and bacterial cultures at varied concentrations improved color values of samples (L*, a*, and b*) compared to controls. The level of bioactive compounds in several samples (S10 and S14) decreased after fermentation in contrast to S5 samples. The bacterial population in the samples ranged from ∼7.00 to 9.50 log CFU/g after 48‐h fermentation. The fruit puree samples exhibited the presence of two different phenolic compounds and a total of 17 distinct volatile aroma compounds. The control sample scored highest for aromatic components in PROMETHEE, while S14‐II was the most unique sample in cluster analysis. In conclusion, fermented probiotic fruit puree shown high promise as a carrier for live probiotics, and the fermentation process boosted the nutritional content of the fruit puree.
Zeolites are aluminosilicate materials that possess a crystalline structure characterized by an interlinked three-dimensional framework of AlO4 and SiO4 tetrahedra. This framework contains open cavities in the form of channels and cages, leading to the designation of zeolites as molecular sieves. The characteristics of molecular sieves enable zeolites to have high adsorption capacity, ion exchange capability, and catalytic properties, which also contribute to improving indoor environmental quality. Zeolites also exhibit pozzolanic reactivity due to their high silica content. These chemical and physical properties of zeolites offer the potential to produce a lime-based mortar with improved mechanical performance, which can also contribute to the physical conditions of the environment with its hygroscopic behavior. For this purpose, under the scope of the research, the pozzolanic reactivity of zeolite obtained from the Manisa Gördes region of Türkiye has been evaluated first. After establishing the pozzolanic property of zeolite, mortar alternatives with different pozzolan/binder ratios, curing conditions, and aggregate sizes are investigated through a combination of physical and mechanical testing methods. Clinoptilolite-type natural zeolite in the form of powder and aggregates, which vary between 0-7 mm (0-2 mm, 2-4 mm, 4-7 mm) particle size, and class CL 90 – S type slaked lime were used to produce zeolite based lime mortars. The different particle sizes of zeolite aggregates were added to increase the moisture adsorption capacity of the mortar.
The gamma probe is a commonly used detector for localizing sentinel lymph nodes after the injection of radiopharmaceuticals. In recent years, studies have focused on improving the features of gamma probes to achieve more consistent localization of the radiotracer uptake. As part of this effort, a novel gamma probe prototype based on an active shielding was developed, and its characteristics, including sensitivity, resolution and shielding effectiveness, were determined. The prototype integrates trapezoidal-shaped bismuth germanate (BGO) array coupled with a silicon photomultiplier (SiPM) array, accompanied by dedicated electronics and software for stand alone usage. We conducted a thorough characterization, validating experimental observations through Monte Carlo simulations using the GEANT4 simulation package. In scattering environment, with a probe-source distance of 30 mm, the experimental results show that the detector sensitivity is cps/MBq, and the spatial and angular resolutions, in terms of full width at half maximum (FWHM), are mm and , respectively. The shielding effectiveness of the probe was determined to be greater than 95. The prototype with active shielding was found to have comparable performance to conventional gamma probes.
Machine learning is an artificial intelligence method applied to provide a machine with various abilities such as perception, problem-solving, decision-making, and inference that are unique to human intelligence. With this method, the machine is trained using a data set for the problem to be solved and prediction models are created. The resulting model is based on a mathematical relationship that the machine extracts based on the data. This relationship that the machine establishes between data attributes within itself makes it possible to infer new attributes. Machine learning has supervised learning, unsupervised learning, semi-supervised learning, and reinforcement learning options. This method, which has a wide range of applications, has been used effectively in solving many structural engineering problems. In this study, the machine learning method and the studies on its development and applications in the field of structural engineering are described. In addition, a structural engineering study using machine learning is presented.
Regional variation in the historic development of agricultural societies in South-west Asia is increasingly apparent. Recent investigations at the wetland site of Balıklı ( c . 8300–7900 BC) provide new insights into the initial processes of sedentism in Central Anatolia and the interaction of early communities within local and larger-scale networks. Located near major obsidian sources, excellent architectural preservation and faunal and botanical records at Balıklı suggest cultural connections to the upper Middle Euphrates region, yet inhabitants of the site do not appear to have participated in the wider South-west Asian obsidian-exchange networks and largely relied on wild resources.
This article presents a study on strengthening infill walls using composite materials to enhance shear capacity. The cementitious matrix grid (CMG) material was employed for this purpose. Various configurations of the CMG, including single or double layers applied to one or both sides of the wall, with or without anchorage, were tested. The study consisted of two stages. Initially, mechanical properties of the bricks, mortar, and CMG mortar were determined using twenty-seven specimens. In the second stage, ten specimens, divided into five groups with one group left unstrengthened, underwent shear tests. Shear strength and shear strain relationships were determined for each specimen. Comparative analysis between strengthened and unstrengthened specimens revealed the effectiveness of the strengthening technique. The strengthened specimens exhibited superior structural performance compared to the...
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