Hilmi kemal Altun

• Adıyaman University

Bu makale doğrudan ve dolaylı olmak üzere iki amacı hedeflemektedir. Bunlardan birincisi ve en önemlisi Mu‘tezile’nin Basra okulundan olduğu bilinen Zemahşerî’nin aynı okulun Behşemî ya da Hüseynî ekollerinden hangisine tabi olduğunu değerlendirmeye yöneliktir. Zira Zemahşerî’nin biyografisine dair kaleme alınan yazılarda onun Mu‘tezile içerisinde...

In the last decade, a growing interest particularly in determining the cardiovascular effects of herbal extracts took place among researchers. Herein, we aimed to investigate the microvascular and blood pressure lowering effects of two differently processed extracts of the same herb, Alchemilla vulgaris (Rosaceaea), which was revealed to contain hi...

Idiopathic atrophoderma of Pasini and Pierini is a rare form of dermal atrophy with unknown etiology. Characteristic lesions of the disease are asymptomatic, violaceous brown, round or oval, depressed atrophic plaques with sharp edges. Symmetrical lesions with diameters ranging from 1- to 10 cms are mainly seen in back and front of the trunk. Altho...

We consider optimal formulations of spread spectrum watermark embedding where the common requirements of watermarking, such as perceptual closeness of the watermarked image to the cover and detectability of the watermark in the presence of noise and compression, are posed as constraints while one metric pertaining to these requirements is optimized...

The compressed sensing (CS) paradigm unifies sensing and compression of sparse signals in a simple linear measurement step. Reconstruction of the signal from the CS measurements relies on the knowledge of the measurement matrix used for sensing. Generation of the pseudo-random sensing matrix utilizing a cryptographic key, offers a natural method fo...

Spread spectrum (SS) modulation is utilized in many watermarking applications because it offers exceptional robustness against several attacks. The embedding rate-distortion performance of SS embedding however, is relatively weak compared to quantization index modulation (QIM). This limits the relative embedding rate of SS watermarks. In this paper...

We consider the interplay between steganographer and the steganalyzer, and develop a steganalysis aware frame-work for steganography. The problem of determining a stego image is posed as a feasibility problem subject to constraint of data communication, imperceptibility, and statistical indistinguishability with respect to ste-ganalyzer's features....

Instruments were used to measure the confidence, attitudes, and self‐image of 34 final year initial student teachers in Turkey in relation to chemistry education. Nineteen items were used to measure the students’ level of confidence in teaching chemistry. Two main concepts, ‘chemistry as a high school subject’ and ‘chemistry in modern society’ were...

This paper reports a survey of lecturers from six Turkish teacher education institutions. The study specifically aimed to investigate the fundamental issues, concerns, and challenges of implementing information technology (IT) in teacher education. The survey consisted of four sections. The first section of the survey comprised several aspects of I...