Acoustic charge transport technology investigation for advanced development transponder

Acoustic charge transport (ACT) technology has provided a basis for a new family of analog signal processors, including a programmable transversal filter (PTF). Through monolithic integration of ACT delay lines with GaAs metal semiconductor field effect transistor (MESFET) digital memory and controllers, these devices significantly extend the performance of PTF's. This article introduces the basic operation of these devices and summarizes their present and future specifications. The production and testing of these devices indicate that this new technology is a promising one for future space applications

Metalloendoprotease inhibitors that block fusion also prevent biochemical differentiation in L6 myoblasts.

The effect of metalloendoprotease inhibitors on the biochemical differentiation of the rat skeletal muscle line, L6, was investigated. Confluent unfused L6 cells exposed briefly to 1,10-phenanthroline, a chelator of divalent metal cations, or continuously to dipeptide amide metalloendoprotease substrates that are blocked at the NH2-terminals, N-carbobenzyloxyserylleucyl amide and N-carbobenzyloxyglycylleucyl amide, did not fuse or express creatine kinase, myosin heavy chain, or alpha-actin. These effects were reversible and dose-dependent. Exposure to N-carbobenzyloxylglycylglycyl amide, which is not a metalloendoprotease inhibitor, had no effect. As the differentiation in a culture progressed, 1,10-phenanthroline became less effective in blocking the accumulation of creatine kinase and myosin heavy chain. Exposure of partially fused cultures to N-carbobenzyloxyserylleucyl amide prevented any further accumulation of muscle-specific proteins. In confluent cultures where cell division was blocked before the onset of differentiation, N-carbobenzyloxyserylleucyl amide still prevented fusion and the induction of creatine kinase. This indicates that these inhibitors do not act by interfering with the cell cycle. Experiments that measured DNA synthesis rates, plating efficiencies, and the effects of sequential dipeptide and dimethyl sulfoxide treatments indicate that L6 myoblasts do not irreversibly withdraw from the cell cycle when exposed to N-carbobenzyloxyserylleucyl amide. These results are consistent with the role of a metalloendoprotease in initiating the terminal differentiation of cultured muscle cells

Nasal profile changes after orthodontic tooth extraction in Class II, Division 1 malocclusion patients: A retrospective study

Introduction: This study aimed to investigate changes in the facial soft -tissue profile, especially the nose, following fixed orthodontic treatment, with or without tooth extraction, in individuals diagnosed with dental Class II malocclusion. Materials and methods: Cephalometric images of 81 individuals with dental Class II malocclusion who underwent fixed orthodontic treatment were assessed before and after treatment. The participants were categorized into three groups: non -extraction; upper first premolar extraction; and four first premolar extractions. The parameters measured were: upper lip height, upper lip to E -plane, lower lip to E -plane, lower lip height, nasolabial angle, nasomental angle, facial convexity, lower anterior face height, soft -tissue facial convexity, nasal tip angle, nasal bridge length, N0 -nasal bridge point, nasal bone length, nasal bone angle, nasal depth, columella convexity, and nose height. Results: Within the upper two extraction group, there were significant increases at the start and end periods in nasolabial angle (P = 0.023), nasal depth Pr to Ac (P = 0.027), and nasal depth Pr to N-Prn (P = 0.040); and decreases in columella convexity (P = 0.010), upper lip to E -plane (P = 0.009), and nasomental angle (P = 0.009). There were significant results in comparisons between measurements based on the extraction status in the mean nasolabial angle (P = 0.011), mean columella convexity (P = 0.028), and mean lower lip to E -plane (P = 0.045). Conclusion: Orthodontic treatment involving tooth extraction may potentially affect the nasolabial angle and nasal depth. During treatment planning, it is crucial to consider the potential changes that may occur to the nose and any alterations that may be needed to achieve the desired esthetic outcome. (c) 2023 The Author(s). Published by Elsevier Masson SAS. This is an open access article under the CC BY licens

Mineral compositions of some selected centaurea species from Turkey

Centaurea calolepis Boiss., Centaurea lydia Boiss. and Centaurea polyclada DC. were investigated for major minerals and trace elements by X-ray fluorescence spectrometry. Calcium and potassium were found in maximum concentrations in Centaurea species. The results revealed that the concentrations of iron, manganese and zinc were found to be high in C. calolepis. On the other hand, copper, magnesium and phosphorous were found in higher concentrations in C. polyclada. Mineral composition of Centaurea species, will be descriptive in terms of the traditional use of this species. In addition, C. calolepis, C. lydia and C. polyclada may be utilized in nutraceuticals as potential natural sources of major minerals and trace elements

Natural interaction framework for pedestrian navigation systems on mobile devices

Mobile Augmented Reality applications base on navigation frameworks try to promote interaction beyond the desktop by employing wearable sensors, which collect user's position, orientation or diverse types of activities. Most navigation frameworks track location and heading of the user in the global coordinate frame using Global Positioning System (GPS) data. On the other hand, in the wearable computing area researchers studied angular data of human b o y segments in the local coordinate frame using inertial orientation trackers. We propose a combination of global and local coordinate frame approaches and provide a context-aware interaction framework for mobile devices by seamlessly changing Graphical User Interfaces (GUIs) for pedestrians wandering in urban environments. The system is designed and tested on a Personal Digital Assistant (PDA) based handheld prototype mounted with a GPS receiver and inertial orientation tracker. It introduces a method to estimate orientation of a mobile user's hand. The recognition algorithm is based on state transitions triggered by time-line analysis of pitch angle and angular velocity of the orientation tracker. The prototype system can differentiate between three postures successfully. We associated each posture with different contexts which are of interest for pedestrian navigation systems: investigation, navigation and idle. Thus, we introduce the idea that once orientation trackers became part of mobile computers, they can be used to create natural interaction techniques with mobile computers. The prototype is tested successfully in two urban environments: Sabanci University campus area, . 9th International Istanbul Biennial venues in Beyoglu, Istanbul

A systematic review of studies on online education for autism spectrum disorder

The novel coronavirus (2019-nCoV) outbreak caused a paradigm change in education and made it necessary to conduct educational activities through online learning environments (OLEs). This sudden shift also affected special education practices for learners with autism spectrum disorder (ASD). The present study aims to investigate the current issues in online education studies relating to individuals with or involved with (i.e., parents or teachers) ASD. For this purpose, a literature search was carried out to review the relevant studies conducted from 2010 to 2019, and 19 studies were selected based on predefined research criteria. Content analysis was performed to analyze the reviewed articles considering the following domains: publication year, country, field, purpose, research methods, instruments, results, and suggestions. Results indicated that the publication rates of studies pertaining to individuals with ASD, their parents and teachers increased after 2014, and although OLEs are found to be beneficial in meeting the needs of the target group, several improvements are needed to make them more useful and adaptable

Turkey's accession to the European Union: a two level game analogy

The legitimacy crisis that the European Union (EU) is in today has become apparent in the aftermath of the rejection of the Constitutional Treaty in mid 2005 by some member states. The longstanding lack of democratic accountability in the EU decision making mechanism is one of the major problems of the EU that has not yet been resolved. The current crisis and Turkey's accession bid, which has officially begun with 3 October decisions, are in a considerable level of interaction due to the fact that Turkey is one of the reference points of the EU publics and member state governments with respect to the legitimacy crisis of the Union. Turkey's membership to the EU will be subject to inter-state bargaining in the Intergovernmental Conferences during accession negotiations. The hesitation amongst government leaders regarding Turkey's prospective membership is evident and will shape EU decisions to a great extent in the forthcoming years. The European citizens' resistant attitudes matter very much in this sense, which seems to be very hard to be overcome

Struggle over Macedonia : Florina 1906, according to the records of Rumeli Inspectorship

Ankara : The Department of History, Bilkent Univ., 2003.Thesis (Master's) -- Bilkent University, 2003.Includes bibliographical references.The Macedonian Question was one of the diplomatic problems that statesmen and the international public opinion were mostly concerned with at the end of the nineteenth and the beginning of the twentieth century. The expansionist and irredentist desires of the Balkan states Greece, Serbia, and especially Bulgaria lay at the core of the problem.These states encouraged, and even organised terrorist activities in Macedonia. The Great Powers-Austria-Hungary, Russia, Great Britain, France, Germany, and Italy-, meanwhile, viewed the issue in terms of their own political and economic interests. These powers, while supporting this or that Balkan state in various ways and pressurising the Sublime Porte to conduct reforms so as to improve the lives of Christian communities in the European lands of the empire, also wanted the Ottoman Empire to preserve its territorial integrity. Under these circumstances, during the first decade of the twentieth century life in Macedonia was highlighted by anarchy, terror, insecurity and disorder. This thesis deals with certain aspects of the Macedonian Question. The activities of the influence agents of the states that considered Macedonia within their national boundaries and aspired to annex the land, and put forth claims accordingly, such as the bands of Macedo-Bulgarian organisations or the Greek bands, are studied. In addition, the Greek and Bulgarian activities in the kaza of Florina, which is in the vilayet of Manastır, in 1906 are examined in particular with reference to the documents of Rumeli Inspectorship; attempting to construct a micro-history of the region.Kayalar, AnılM.S

Organi̇zati̇onal ci̇ti̇zenshi̇p behavi̇or and health sector

Örgütler, etkinlik ve verimlilik bağlamında başarıya giden yolun insan kaynağından geçtiğinin bilincinde artık. İyi vatandaş, örgüt içinde de biçimsel görev tanımı dışında fazladan çaba harcayarak örgüt performansını artıran kişidir. Örgüt üyelerinin görev tanımı ve sorumlulukları haricinde örgüt yararına gösterdiği, gönüllülük esasına dayalı olarak gösterdiği bu çaba, literatürde Örgütsel Vatandaşlık Davranışı olarak geçmektedir. Yapı, işlev ve büyüklük açısından hangi türde olursa olsun örgütlerde Örgütsel Vatandaşlık Davranışı sergileyen çalışanların olması önemli bir nimettir. Özellikle sağlığın korunması, hastalıkların tedavisi ve rehabilitasyonunda, topluma hizmet üreten sağlık sektöründe bu davranış tipi önemli bir gerekliliktir. Sağlık sektöründe verimli ve kaliteli hizmet üretilmesi, iç ve dış müşteri memnuniyeti için çalışanların bilgi, beceri ve yeteneklerle donanmış olması kadar Örgütsel Vatandaşlık Davranışı sergilemeleri de bireysel ve örgütsel amaçlara ulaşmada altın yoldur. Çalışmanın amacı, örgütsel yaşamda önemli kabul edilen Örgütsel Vatandaşlık Davranışı'nı tüm yönleri ile ortaya koymak ve sağlık sektörüne yanılsamalarını incelemek. Ayrıca Örgütsel Vatandaşlık Davranışı'nın öncülleri ve çıktıları hakkında açıklayıcı bilgiler sunarak çalışan ve yöneticilerin farkındalık düzeylerini artırmak.The road to success in the context of human activity and productivity organizations source has, so it is no longer conscious. Good citizens out of the formal definition of the task within the organization by spending the extra Money to increase the performance of the organization.The responsibilities of the members of the organization for the benefit of the organization ,except for the task definitions ,and is a volunteer effort ,referred to as organizational citizenship behaviour in the literature.Structure function and what types of organizations,regardless of size ,in terms of organizational citizenship behaviour of the employees is a godsend.Especially,health production,disease treatment and rehabilitation, community service is an important requirement in the health care sector that produces this type of behaviour.In the health sector and the production of efficient and quality service to internal and external customer satisfaction ,employees must be armed with the knowledge,skills and capabilities as much as organizational goals,achieving gold way. The aim of the study all aspects of organizational life and Organizational Citizenship Behaviour are considered impotant to the health sector to examine the images.In addition,the outputs of the predecessors and by providing descriptive information about Organizational Citizenship Behaviour employees and managers to increase the level of awareness