Shared Memory-contention-aware Concurrent DNN Execution for Diversely Heterogeneous System-on-Chips

Two distinguishing features of state-of-the-art mobile and autonomous systems are 1) there are often multiple workloads, mainly deep neural network (DNN) inference, running concurrently and continuously; and 2) they operate on shared memory system-on-chips (SoC) that embed heterogeneous accelerators tailored for specific operations. State-of-the-art lacks efficient performance and resource management techniques necessary to either maximize total system throughput or minimize end-to-end workload latency. In this work, we propose HaX-CoNN, a novel scheme that characterizes and maps layers in concurrently executing DNN inference workloads to a diverse set of accelerators within a SoC. Our scheme uniquely takes per-layer execution characteristics, shared memory (SM) contention, and inter-accelerator transitions into account to find optimal schedules. We evaluate HaX-CoNN on NVIDIA Orin, NVIDIA Xavier, and Qualcomm Snapdragon 865 SoCs. Our experimental results indicate that HaX-CoNN minimizes memory contention by up to 45% and can improve latency and total throughput by up to 32% and 29%, respectively, compared to the state-of-the-art approaches

AVALIAÇÃO DE INICIATIVAS DE ADMINISTRADORES ESCOLARES PARA OBJETIVOS DE DESENVOLVIMENTO SUSTENTÁVEL

The concept of sustainable development is defined as a form of development that aims to meet the needs of the present without compromising the needs of future generations. The increasing importance of sustainable development is beginning to show itself in the education curriculum. One of the most important goals pointed out by UNESCO, it is important that school administrators, who are the most important actors of education, have educational knowledge, skills and attitudes for sustainable development. In this research, it is aimed to evaluate the opinions of school administrators in vocational high schools on sustainable development goals and to determine the deficiencies in this subject and to contribute in this direction by collecting the necessary data for taking the right steps. Qualitative research methods were applied in the research, and 15 school administrators working in Northern Cyprus vocational high schools participated in the research. The semi-structured interview form prepared by the researcher was used for data collection. The data obtained in the research were analyzed with the content analysis method. As a result of the research, it is seen that school administrators have knowledge about sustainable development. Among the opinions of school administrators who put forward their views on the 17th article of sustainable development, providing equal rights to the society, providing economic contributions, providing access to clean water and energy, recycling, ensuring the sustainability of agricultural development, and cooperation with stakeholders come to the fore.O conceito de desenvolvimento sustentável é definido como uma forma de desenvolvimento que visa a atender às necessidades do presente sem comprometer as necessidades das gerações futuras. A crescente importância do desenvolvimento sustentável está começando a se manifestar no currículo educacional. Como uma das metas mais importantes apontadas pela UNESCO, é importante que os administradores escolares, que são os atores mais importantes da educação, tenham conhecimentos, habilidades e atitudes educacionais para o desenvolvimento sustentável. Nesta pesquisa, o objetivo é avaliar as opiniões dos administradores escolares de escolas de ensino médio profissionalizante sobre as metas de desenvolvimento sustentável, determinar as deficiências nesse assunto e contribuir nessa direção coletando os dados necessários para tomar as medidas certas. Os métodos de pesquisa qualitativa foram aplicados na pesquisa, e 15 administradores escolares que trabalham em escolas de ensino médio profissionalizante do norte do Chipre participaram da pesquisa. O formulário de entrevista semiestruturado preparado pelo pesquisador foi usado para a coleta de dados. Os dados obtidos na pesquisa foram analisados com o método de análise de conteúdo. Como resultado da pesquisa, observou-se que os administradores escolares têm conhecimento sobre desenvolvimento sustentável. Entre as opiniões dos administradores escolares que expuseram seus pontos de vista sobre o 17º artigo do desenvolvimento sustentável, destacam-se o fornecimento de direitos iguais à sociedade, as contribuições econômicas, o acesso a água limpa e energia, a reciclagem, a garantia da sustentabilidade do desenvolvimento agrícola e a cooperação com as partes interessadas

Investigation of the presence of pregnancy rhinitis in the third trimester with rhinomanometry

Aim: Pregnancy rhinitis (PR) is characterized with nasal symptoms during pregnancy without any signs of respiratory infection and it usually disappears within 2 weeks after delivery. We aimed to investigate the relationship between pregnancy rhinitis and findings derived from anterior rhinoscopy (AnR), anterior rhinomanometry (ARM) and subjective nasal obstruction score (SNOS). Methods: This prospective, controlled study was performed in otorhinolaryngology and obstetrics and gynecology departments of our tertiary care center. A total of 30 pregnant women in the third trimester and 30 non-pregnant women were involved. All participants underwent otorhinolaryngology examination, as well as clinical evaluation for AnR, ARM and SNOS. Results: Pregnancy rhinitis was detected in 66.7% of the pregnant women. The mean AnR was 3.60 ± 1.35 in pregnant women and 0.77 ± 0.73 in the control group. Total nasal inspiratory resistance (TNID) was 0.46±0.23 in pregnant women and 0.27±0.06 in the control group. The mean SNOS was 1.37±0.72 in pregnant women and 0.57±0.63 in the control group. AnR, ARM and SNOS findings were significantly higher in pregnant women (p<0.05). There is a low positive and significant correlation between AnR, ARM, and SNOS values in pregnant women (p<0.05). Conclusion: Our data yielded that nasal obstruction and pregnancy rhinitis were common in pregnant women.  Nasal symptoms and complaints must be carefully examined during pregnancy. Further prospective, controlled, randomized trials on larger series are warranted to elucidate the clinical and pathophysiological features of pregnancy rhinitis

The Role of E-Transformational Leadership in Intergenerational Cooperation for School Culture

In transforming society and the new education system, there is significant need to know more about new generation expectations and the characteristics in order to form future actions. This study aims to reveal the role of e-transformational leadership in intergenerational cooperation for the better school practice and culture. The literature pays attention on transformation in education however literature needs to put forward to expanding practical knowledge on entrepreneurship, cooperation and transformational leadership by concentrating on intergenerational learning and exchange of knowledge in school culture. The study has qualitative nature that self-reports of headmaster and teachers in school context provided qualitative data in order to discover emic perspective on e-transformational leadership and intergenerational cooperation. Thematic analysis was employed to reveal the perceptions and experiences of headmasters and teachers in respect to research focus. The findings showed that the situation of transformational leadership of headmasters, intergenerational cooperation on school culture and efficient use of information technology are key terms to be considered for the development of school culture

Protective Role of Genistein in Acute Liver Damage Induced by Carbon Tetrachloride

Aim. In the present study, we investigated the protective effect of genistein in experimental acute liver damage induced by CCl4. Method. Forty rats were equally allocated to 5 groups. The first group was designated as the control group (group 1). The second group was injected with intraperitoneal CCl4 for 3 days (group 2). The third group was injected with subcutaneous 1 mg/kg genistein for 4 days starting one day before CCl4 injection. The fourth group was injected with intraperitoneal CCl4 for 7 days. The fifth group was injected with subcutaneous 1 mg/kg genistein for 8 days starting one day before CCl4 injection. Plasma and liver tissue malondialdehyde (MDA) and liver glutathione levels, as well as AST and ALT levels were studied. A histopathological examination was conducted. Results. Liver tissue MDA levels were found significantly lower in group 3, in comparison to group 2 (P < .05). Liver tissue MDA level in group 5 was significantly lower than that in group 4 (P < .001). Liver tissue glutathione levels were higher in group 5 and 3, relative to groups 4 and 2, respectively (P > .05 for each). Inflammation and focal necrosis decreased in group 3, in comparison to group 2 (P < .001 for each). Inflammation and focal necrosis in group 5 was lower than that in group 4 (P < .001). Actin expression decreased significantly in group 5, relative to group 4 (P < .05). Conclusion. Genistein has anti-inflammatory and antinecrotic effects on experimental liver damage caused by CCl4. Genistein reduces liver damage by preventing lipid peroxidation and strengthening antioxidant systems

Expression of Ghrelin and GHSR-1a in Long Term Diabetic Rat's Kidney

The aim of this work was to study the relative ghrelin and growth hormone secretagogue receptor (GHS-R)1a gene expression in the kidney of long-term diabetic rats. Forty male Wistar albino rats were divided into four groups: C- control group, DI- one month diabetic rats group, DII- two months diabetic rats group, and DIII- three months diabetic rats group. Diabetes was induced by streptozotocin STZ (40mg/kg i.p). The rats were decapitated under ketamine anesthesia and their kidney tissues were removed. Tissue GHS-R mRNA levels, ghrelin expression, and histopathological damage scores were compared. Dilatation in the distal tubules, epithelial desquamation into the lumen of the tubules and transparent tubules showing glycogen vacuolation were observed in all the diabetic groups. Ghrelin immunoreactivity was significantly higher in group DI compared to group C, whereas in groups DII and DIII, ghrelin immunoreactivity was similar with group C. GHSR-1a mRNA level in group DIII was significantly lower than in group C. As a result, ghrelin immunoreactivity increased at the beginning of diabetes; however, with increase in the duration of diabetes ghrelin immunoreactivity approached to the control values. The expression of GHSR-1a mRNA decreased with increase in diabetes duration. It seemed that down-regulation of GHSR-1a contributed to the renal damage induced by long-term diabetes