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Investigation of the effects of clamp depths on the flexural behavior of walls in masonry walls
No full textMasonry structures exhibit brittle behavior because they are made of materials that have low tensile strength such as stone and brick. Fasteners called clamps made of wood or metal elements are used to increase the tensile strength and ductility properties of these structures. There are not enough studies investigating these materials, which have very important effects in terms of building behavior. The purpose of the present study was to experimentally and numerically examine the effects of the clamp depths on the structural behavior. For this reason, an experimental study was conducted on one non-clamped masonry wall, which was called “the reference sample”, and seven clamped masonry walls, whose immersion depth of clamp were considered as variables (10 mm, 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm). Masonry walls were tested in the experimental study under four-point loading according to the EN 846-9 (2016) standard and analyzed with the LUSAS (2020) program. Experiment and analysis results were compared with each other. The results showed that the load carrying capacity of clamped samples increased at least 10.53% compared to the unclamped reference sample. The ratio of the immersion depth of the clamp to the height of the stone was determined as minimum 0.3. It was also determined that a ratio higher than 0.6 reduced the load bearing capacity of the masonry wall
YouTube as a source of information on infantile colic
No full textYouTube is increasingly used by patients and parents as a source of information in the field of health. The aim of the study was to measure the quality and reliability levels of the videos published in English on infantile colic (IC) uploaded on YouTube. Methods: A YouTube search was achieved by two authors using the key words “infantile colic,” “baby”, “colic”, “children” and “treatment”. Along with the general features of the videos, their quality and reliability were evaluated according to the global quality score (GQS), modified DISCERN (mDISCERN) score. Results: Among the 55 videos included in the study, 25 (55.6%) were high quality, 19 (42.2%) medium quality and 11 (2.2%) low quality. The mDISCERN and GQS scores of the videos in the useful group were higher than those in the misleading group (p < 0.001). Videos uploaded by academic institutes and physicians had higher mDISCERN and GQS scores than other groups (p = 0.045, p = 0.005) and positive correlation detected between mDISCERN and GQS scores (p < 0.001). Conclusion: IC videos broadcasted on YouTube, whose usage rates are increasing with the COVID-19 pandemic, are a useful data source for patients/parents. Digital video resources provided by academic institutions, universities and healthcare professionals can assist physicians and parents in IC pathophysiology and treatment
Readıng Verses About Human’s Act In Theır Hıstorıcal Context
Full text linkKur’an miladi yedinci yüzyılda canlı bir dialog ortamda yirmi üç yıllık süreçte peyder pey nazîl olmuş
bir kelamdır. Nâzil olduğu dönemde ayetlerin perde arkası bilindiğinden ilk muhataplar ayetleri anlamakta bir sorun yaşamamışlardır. Ancak Kur’an yazılı olarak iki kapak arasında bir kitap (mushaf)
haline getirilip nüzul döneminden uzaklaşılınca ayetlerin anlaşılmasında sorunlar yaşanmaya başlanmıştır. Zira ayetler genellikle kendi tarihsel bağlamlarından bağımsız olarak lafız-beyan çerçevesinde
anlaşılmaya çalışılmıştır. Yine bu zamanlarda yeni teolojik ve hukuki sorunlar belirmiş ve bu sorunlar
beraberinde farklı eğilime sahip mezheplerin ortaya çıkmasına neden olmuştur. Söz konusu sorunlardan biri de insan fiilleri meselesidir. Bu mesele hakkında İslam geleneğinde üç farklı yaklaşım ortaya
çıkmıştır. Birinci yaklaşım Cebriyye’ye aittir. Bu mezhebe göre insan fiilleri Allah tarafından yaratılmış ve insanın bu fiillerde iradesi ve sorumluluğu söz konusu değildir. İkinci yaklaşım Muʿtezile’ye
aittir. Bu yaklaşıma göre insan fiilleri Allah tarafından yaratılmamıştır. Aksine bizzat insan tarafından
yaratılmış ve insan da faili olduğu bu fiillerinden sorumlu tutulmuştur. Üçüncü yaklaşım ise Mâtürîdî
ve Eşʿarîlere aittir. Bu mezheplere göre insan fiilleri Allah tarafından yaratılmıştır. Bununla birlikte
fiillerinden sorumlu tutulması için kendisine cüz-i irade verilmiş ve ondan meydana gelen bu fillere ise
kesb denilmiştir. Bu çalışmada Eşʿarî ve Mâtürîdî âlimlerin insan fiilleri konusunda refere ettikleri
bazı ayetlerin nüzul dönemindeki anlam ve mesajının tespit edilmesi hedeflenmektedir. Bu çerçevede
öncelikle mezheplerin insan fiilleri konusundaki yaklaşımlarına değinilecektir. Ardından da bu konuda
istidlalde bulundukları ayetlerin nüzul dönemindeki anlam ve mesajının ne olduğu üzerinde durulacaktır.The Qur'an is a word/kalâm that has been gradually revealed in a lively environment in the seventh
century AD over a period of twenty-three years. The first addressees had no problem understanding
the verses since the background of them were known at the time Qur’an was revealed. However, when
the Qur'an was turned into two covers and the period of nuzul was moved away, problems began to
occur in the understanding of the verses. Because the verses are generally tried to be understood within the framework of word-declaration regardless of their historical context. Again, in these times,
new theological and legal problems emerged and these problems led to the emergence of sects with
different tendencies. One of the topics in question is the issue of human acts. Three different approaches have emerged in the Islamic tradition on this issue. The first approach belongs to Jabriyya. According to this sect, human’s act were created by Allah and man has no will or responsibility for these
actions. The second approach belongs to Muʿtezile. According to this approach, human actions were
not created by Allah. On the contrary, it was created by man himself and is responsible for his actions.
The third approach belongs to the Mâtürîdî and Eşʿarîs. According to these sects, human actions were
created by Allah. However, a partial will was given to him to be held responsible for his actions, and
these actions formed from it were called kesb. In this study, it is aimed to determine the meaning and
message of some verses referred to by Ashʿari and Matürîdî scholars on human actions in the period of
nuzul. In this context, first of all, the sectarian approaches of the sects on human actions will be mentioned. Then, the meaning and message of the verses they use on this subject in the period of nuzul
will be emphasized
Robo-Advisors in the Financial Services Industry: Recommendations for Full-Scale Optimization, Digital Twin Integration, and Leveraging Natural Language Processing Trends
No full textRobo-advisors are a digital tool that has become popular in the financial services industry in recent years. These tools are used to manage investment portfolios and provide financial planning services. Robo-advisors have an important place in the relationship between businesses and financial services. Since the last few decades, the financial services industry has witnessed numerous innovative practices leading to the transformation of the sector amidst the rapid growth of disruptive technologies such as artificial intelligence, block chain and cloud technology, augmented reality, and virtual reality. The robotic automation process has further enhanced the ease and speed with which the consumers are being catered. Robo-advisory technology is designed to provide automated investment software for retail investors who lack the capital or expertise to hire a personal financial advisor. Robo-advisors usually evaluate new clients' risk tolerance and construct globally diversified portfolios using the principles of Modern Portfolio Theory. This study utilizes past data, behavioral studies, theories, and current market trends to develop recommendations for the robo-advisory industry in the US and globally. The first recommendation proposes utilizing fullscale optimization during the portfolio construction phase. The second recommendation focuses on incorporating digital twin capabilities into the software to benefit both robo-advisors and their clients. Lastly, the report forecasts the growth of Financial Technology companies improving Natural Language Processing via AI chatbots and how robo-advisors could leverage this trend
Measurement of size-segregated airborne particulate bound polycyclic aromatic hydrocarbons and health risk assessment: a case study in Aksaray atmosphere, Turkey
No full textPolycyclic aromatic hydrocarbons (PAHs) were measured in size-segregated particulate matters (PMs) in a range of 0.43 to 10.0 μm, categorized into two as fine particles (0.43 μm < d < 2.1 μm) and coarse particles (2.1 μm < d < 10.0 μm), during summer and winter seasons in an urban atmosphere of Aksaray, Turkey. The primary purpose of this study was to investigate size distribution, temporal variation, and related health risks of PAHs. During the winter season, concentrations of PAHs in the sampling site were almost ten times higher than in summer, and approximately 85% of the PAHs belonged to the fine PM fraction. On the other hand, it was determined that the emission sources of the detected PAHs in the summer season were traffic-related emissions. The smallest particle size range (0.45–0.63 μm) consisted of the maximum PAH concentration (1.22±0.05 ng m−3) about other particle sizes during the summer season. Fluoranthene (Flt) was the main PAH species determined during winter, indicating that coal combustion is a dominant pollution source. The size distribution properties of PAHs showed similar characteristics for coarse particles, which was also the case for fine particles. In addition, as the ring number of PAHs increases, the height of the peaks decreases in the size distribution plots of coarse particles. Higher molecular weight (HMW) PAHs show higher carcinogenicity potential, mainly found in the fine PM fraction. A health risk assessment was estimated by toxicity equivalent quantity (TEQ) and inhalation cancer risk (ICR), indicating medium risk for the fine PMs and low risk for the coarse PMs
A study on (n, α) reaction cross sections using a new empirical systematic
No full textIn this article, we report a new empirical formula for quick calculation of cross sections of (n, α) reactions with 14–15 MeV neutrons. Cross sections are analysed in terms of the compound nucleus model. A systematic trend for 14–15 MeV neutrons is found in the variation of (n, α) reaction cross sections with the parameters (N − Z + 1), (En+Q)0.5 and N/Z. The empirical relation between the cross sections and these parameters has been obtained, which give fairly good fits with the experimental data. We have also investigated the odd-even effects on (n, α) cross sections considering binding energy systematic of the shell model. The present formula is very useful in predicting of the (n, α) cross sections, where the measurements are not available as well as in testing new experimental data
Evaluation of biological (feed, water), seasonal, and geological factors affecting the heavy metal content of raw milk
No full textIn volcanic regions worldwide, soil and water can be contaminated with heavy metals. Aksaray province is also an important region in this respect. Because this city is located around Hasandağı, an extinct volcanic mountain. In addition, the city is also an important dairy center. In this regard, evaluating the milk produced in Aksaray in terms of heavy metal contamination and studying the effect of feed and water on this contamination is essential. For this purpose, feed, water, and milk samples from 7 milk producers determined in Aksaray province were collected in 3 different seasons within six months. The presence and levels of arsenic (As), aluminum (Al), nickel (Ni), cadmium (Cd), and lead (Pb) were determined by ICP-MS analysis of the 126 samples obtained. The study found varying levels of heavy metals in feed, water, and milk. It was also observed that milk contained considerably lower quantities of metals and metalloids than feed and water. In addition, it has been determined that the distance to Hasandağı does not affect the trace element levels in water, milk, and feed, but there is a significant relationship between seasonal changes and trace elements in the samples. According to the analysis results, the highest level is the feed's aluminum level (298,290.1 µg/kg). However, the aluminum level in milk remained well below this level (96.15 µg/kg). It was determined that the cadmium level in milk reached the highest level in spring (average 0.06 µg/kg), whereas lead levels reached the highest level in summer (average 2.14 µg/kg). On the other hand, the arsenic level showed a relatively small change according to the distance to the volcanic region. The average arsenic level in milk from regions near the volcanic area was measured as 1.01 µg/kg. In remote areas, this amount was measured as 0.94 µg/kg, Furthermore, the highest heavy metal level in the milk was 182.08 µg/kg for nickel during the summer months in the study
Interaction of Nitrergic and Cholinergic Systems on Anxiety and Depression-Like Behaviors in Diabetic Rats with Streptozotocin
No full textInteraction of Nitrergic and Cholinergic Systems on Anxiety and Depression-Like Behaviors in Diabetic Rats with Streptozotocin..
Sturm’s Theorem for Min matrices
No full textIn the present paper, we study Min matrix, where as’s are the elementsof a real sequence {as}. We first obtain a recurrence relation for the characteristic polynomial for matrix Amin, and some relations between the coefficients of its characteristic polynomial. Next, we show that the sequence of the characteristic polynomials of the i× i (i ≤ n) Min matrices satisfies the Sturm sequence properties according to different required conditions of the sequence {as}. Using Sturm’s Theorem, we get some results about the eigenvalues, such as the number of eigenvalues in an interval. Thus, we obtain the number of positive and negative eigenvalues of Min matrix Amin. Finally, we give an example to illustrate our results
Unequal Area Facility Layout Planning with Virtual Departments
No full textThis study proposes a solution approach to the layout problem in facilities with unequal department areas. To organize the layout, a flexible bay structure (FBS) is used as the basis. The FBS is commonly used in the design of production and retail facilities in which, departments are positioned in horizontal bays. Each bay typically includes multiple departments of varying lengths. The proposed approach starts with a randomly generated initial layout. To create the initial layout, the facility block is first divided into horizontal bays. Then, departments are randomly assigned to those bays. The assignment order determines the position of each department within a bay. By using the initial layout as a reference, alternative layouts are generated by two-way exchanges of departments. Relying solely on department swaps limits the variety in alternative generation (e.g., the number of departments in bays remains constant). To overcome this hurdle, we introduce virtual departments with zero areas. Introducing virtual departments enhances the search process by increasing the number and variety of possible solutions. A performance comparison with the standard two-way exchange algorithm on two test cases shows the superiority of the proposed approach