High-Performance Robust Latches

First, a new high-performance robust latch (referred to as HiPeR latch) is presented that is insensitive to transient faults affecting its internal and output nodes by design, independently of the size of its transistors. Then, a modified version of the HiPeR latch (referred as HiPeR-CG) is proposed that is suitable to be used together with clock gating. Both proposed latches are faster than the latches most recently presented in the literature, while providing better or comparable robustness to transient faults, at comparable or lower costs in terms of area and power, respectively. Therefore, thanks to the good trade-offs in terms of performance, robustness, and cost, our proposed latches are particularly suitable to be adopted on critical paths

Impact of Bias Temperature Instability on Soft Error Susceptibility

In this paper, we address the issue of analyzing the effects of aging mechanisms on ICs' soft error (SE) susceptibility. In particular, we consider bias temperature instability (BTI), namely negative BTI in pMOS transistors and positive BTI in nMOS transistors that are recognized as the most critical aging mechanisms reducing the reliability of ICs. We show that BTI reduces significantly the critical charge of nodes of combinational circuits during their in-field operation, thus increasing the SE susceptibility of the whole IC. We then propose a time dependent model for SE susceptibility evaluation, enabling the use of adaptive SE hardening approaches, based on the ICs lifetime

Modeling and Detection of Hotspot in Shaded Photovoltaic Cells

In this paper, we address the problem of modeling the thermal behavior of photovoltaic (PV) cells undergoing a hotspot condition. In case of shading, PV cells may experience a dramatic temperature increase, with consequent reduction of the provided power. Our model has been validated against experimental data, and has highlighted a counter-intuitive PV cell behavior, that should be considered to improve the energy efficiency of PV arrays. Then, we propose a hotspot detection scheme, enabling to identify the PV module that is under hotspot condition. Such a scheme can be used to avoid the permanent damage of the cells under hotspot, thus their drawback on the power efficiency of the entire PV system

Design Analysis, Installation and Performance Evaluation of a Hydraulic Ram Pump System with a Modified Waste Valve

Hydraulic ram pump is one of the oldest mechanical devices used for water lifting. A hydraulic ram pump has two moving parts which are the waste valve and delivery valve. As a lot of studies had been carried out investigating parameters possibly affecting the performance of a hydraulic ram pump, this study aimed to design and­ fabricate a modified waste valve for a hydraulic ram pump with parts made from locally available off-the-shelf materials. Results revealed that varying the height of the waste valve’s stroke significantly affected the relivery flow rate thus affecting its overall all efficiency.

Low Cost NBTI Degradation Detection and Masking Approaches

Performance degradation of integrated circuits due to aging effects, such as Negative Bias Temperature Instability (NBTI), is becoming a great concern for current and future CMOS technology. In this paper, we propose two monitoring and masking approaches that detect late transitions due to NBTI degradation in the combinational part of critical data paths and guarantee the correctness of the provided output data by adapting the clock frequency. Compared to recently proposed alternative solutions, one of our approaches (denoted as Low Area and Power (LAP) approach) requires lower area overhead and lower, or comparable, power consumption, while exhibiting the same impact on system performance, while the other proposed approach (denoted as High Performance (HP) approach) allows us to reduce the impact on system performance, at the cost of some increase in area and power consumption

Les Roses Grand Waltz

https://digitalcommons.library.umaine.edu/mmb-ps/2125/thumbnail.jp

Peran persepsi keterlibatan orangtua dan peran sosial guru dengan efikasi diri akademis siswa dalam pembelajaran online di masa pandemi

This study aimed to determine: 1) The correlation between perceptions on parental involvement and students' academic self-efficacy in online learning; 2) The correlation between perceptions on teacher’s social role and students' academic self-efficacy in online learning; 3) The correlation between perceptions on parental involvement and perceptions on teacher’s social role with students' academic self-efficacy in online learning. The subjects were 900 senior and junior high school students in Buleleng Regency, Bali who took online learning during the Covid-19 pandemic. The data collection tools used were scale of student's academic self-efficacy, scale of perception on parental involvement, and scale of the perception on teacher's social role. The simple regression technique was used to analyze the first and second hypotheses, while the multiple regression technique was used to tests the third hypothesis. The results indicated that; 1) There was a positive relationship between perceptions on parental involvement with students' academic self-efficacy in online learning during pandemic period, 2) there was a positive relationship between perceptions on teacher’s the social role and students' academic self-efficacy 3) there was a positive relationship between perceptions on parental involvement and perceptions on teacher’s social role with students' academic self-efficacy in online learning during pandemic

KAJIAN PSIKOLOGIS WATAK TOKOH DALAM NOVEL KORUPSI KARYA PRAMOEDYA ANANTA TOER SERTA RELEVANSINYA TERHADAP PEMBELAJARAN BAHASA INDONESIA DI PERGURUAN TINGGI

Penelitian ini bertujuan untuk mendeskripsikan: (1) pandangan secara psikologi mengenai korupsi; (2) pemaknaan masyarakat mengenai korupsi; (3) bagaimana watak seorang koruptor dalam novel; (4) relevansi kajian psikologis watak tokoh dalam novel korupsi karya Pramoedya Ananta Toer dengan pembelajaran bahasa Indonesia di perguruan tinggi. Untuk mencapai tujuan tersebut penulis melakukan pengumpulan data dengan teknik studi pustaka. Analisis data dilakukan dengan teknik analisis isi. Adapun manfaat penelitian ini untuk memperkaya pengkajian dan pengapresiasian karya sastra Indonesia, membantu pembaca memahami gambaran unsur korupsi dalam novel korupsi karya Pramoedya Ananta Toer, menghubungkan novel korupsi karya Pramoedya Ananta Toer dengan psikologi sastra, serta relevansinya dengan pembelajaran bahasa Indonesia. Hasil analisis menerangkan bahwa: 1) psikologi mempengaruhi seseorang melakukan tindakan korupsi; 2) korupsi merupakan tindakan pencurian uang demi kepentingan pribadi maupun kelompok; 3) watak seseorang memicu suatu tindakan korupsi; dan (4) relevansi kajian psikologis watak tokoh dalam novel korupsi karya Pramoedya Ananta Toer dengan pembelajaran bahasa Indonesia di perguruan tinggi

Possible genetic implications in the response to cardiac resynchronisation therapy in a patient affected by heart failure

This report presents a case of a patient with idiopathic dilated cardiomyopathy and severe left ventricular systolic dysfunction who underwent cardiac resynchronisation therapy (CRT). During the follow-up a progressive increase in left ventricular ejection fraction was observed, as well as clinical improvement. No cardiovascular events occurred during the follow-up, except for appropriate Implantable Cardioverter Defibrillator (ICD) bursts for fast ventricular tachycardia. Genotyping for adrenoceptor gene polymorphisms detected that the patient was Glu27Glu homozygous carrier. There’s a large interindividual variability in response to CRT. Despite attempts to identify factors having an impact on this therapy, only QRS duration is accepted according to guidelines. Beta-adrenoceptors polymorphisms, modulating sympathetic drive in heart failure and left ventricular remodelling, may have a role in identifying patients with a better response to CRT, in order to target and individualise the patients’ treatment

Abnormal liver function tests in acute heart failure: relationship with clinical characteristics and outcome in the PROTECT study

Aims: Episodes of acute heart failure (AHF) unfavourably affect multiple organs, which may have an adverse impact on the outcomes. We investigated the prevalence and clinical consequences of abnormal liver function tests (LFTs) in AHF patients enrolled in the PROTECT study. Methods and results: The LFTs comprised serial assessment of aspartate aminotransferase (AST), alanine aminotransferase (ALT) and albumin at baseline and during follow-up (daily until discharge, on days 7 and 14). The prevalence of abnormal LFTs (above upper limit of normal for AST and ALT or below lower limit of normal for albumin) was: at baseline AST 20%, ALT 12%, albumin 40%; and at day 14: AST 15%, ALT 9%, albumin 26%. Abnormal LFTs at baseline were associated with a higher risk of in-hospital death with odds ratios [95% confidence interval (CI)] of 3.5 (1.7–7.3) for AST, 3.9 (1.8–8.4) for ALT, and 2.8 (1.3–5.9) for albumin (all P < 0.01). Abnormal baseline and discharge LFTs had an unfavourable impact on 180-day mortality with hazard ratios (95% CI) for baseline AST, ALT, and albumin of 1.3 (1.0–1.7), 1.1 (1.0–1.2), 1.4 (1.1–1.8), respectively, and 1.5 (1.1–2.0), 1.5 (1.0–2.2), and 1.6 (1.2–2.1), for discharge AST, ALT, albumin, respectively (all P < 0.05). Analysis of LFTs trajectories (calculated as changes in LFTs over time) revealed that increasing AST and ALT on day 3 as well as decreasing albumin on day 4 were independent prognosticators of 180-day outcome (all P < 0.05). Conclusions: Abnormal LFTs are frequent in AHF at baseline and during hospital stay and predict worse outcomes. Whether this association is causal and what are the underlying mechanisms involved require further study