467 research outputs found

    Low Power and Efficient Re-Configurable Multiplier for Accelerator

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    Deep learning is a rising topic at the edge of technology, with applications in many areas of our lives, including object detection, speech recognition, natural language processing, and more. Deep learning's advantages of high accuracy, speed, and flexibility are now being used in practically all major sciences and technologies. As a result, any efforts to improve the performance of related techniques are worthwhile. We always have a tendency to generate data faster than we can analyse, comprehend, transfer, and reconstruct it. Demanding data-intensive applications such as Big Data. Deep Learning, Machine Learning (ML), the Internet of Things (IoT), and high- speed computing are driving the demand for "accelerators" to offload work from general-purpose CPUs. An accelerator (a hardware device) works in tandem with the CPU server to improve data processing speed and performance. There are a variety of off-the-shelf accelerator architectures available, including GPU, ASIC, and FPGA architectures. So, this work focus on designing a multiplier unit for the accelerators. This increases the performance of DNN, reduced the area and increasing the training speed of the system

    Studi Deskriptif Kejadian Demam Berdarah Dengue (DBD) dengan Pendekatan Spasial di Kota Kupang (Analisis Data Sekunder Tahun 2010-2011)

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    Background :Dengue Haemorrhagic Fever (DHF), an endemic disease in Kupang, has been an enormous healthissue throughout years, as it frequently causes outbreak. The risk factors of the disease, according to certainvariables; time, location, civil and population density, climate, precipitation, temperature, humidity, and diseaseincidence, are still remaining unknown. Therefore, no predictive agent to estimate the DHF outbreak in Kupang hasbeen found.Methode : The research is a obsevasional study, with a spatial approach. The research variables were inspectedat same time and the samples were taken from the whole population; all secondary data on Health Departmentregistration record of Kupang. The data was presented on tables and were analyzed by descriptive method.Result : The result of the secondary data analysis indicated that the endemic trend of DHF profile in Kupang hasbeen decreasing over the last 2 years, however the number of exposed area towards DHF endemic increases. DHFIR showed decreasing trend; particular decline was noted on 2011 (55.45 per 100.000 people) compared to 2010.Highest proportion of DHF patient was found on age 5 – 9 years, followed by age 1 – 4 years, and age 15-19 years.There was changed phenomenon in time, distribution pattern and age; from younger age into productive age,with increasing proportion. There were 6 kecamatan and 44 kelurahan that proned to DHF. DHF IR reached thehighest point at 2010, in Kecamatan Kota Raja (122.80 per 100.000 people), the lowest point indicated atKecamatan Kelapa Lima 50.55 per 100.000 people. In 2011, highest IR was indicated at Kecamatan Kota Lama(84.64 per 100.000 people) while the lowest IR indicated at Kecamatan Alak (35.40 per 100.000 people). Certainfactors are believed to take effect on DHF incidence, these factors are; population density, location, precipitation,air temperature and humidity

    Ultramafic xenoliths from the Bearpaw Mountains, Montana, USA: evidence for multiple metasomatic events in the lithospheric mantle beneath the Wyoming craton

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    Ultramafic xenoliths in Eocene minettes of the Bearpaw Mountains volcanic field (Montana, USA), derived from the lower lithosphere of the Wyoming craton, can be divided based on textural criteria into tectonite and cumulate groups. The tectonites consist of strongly depleted spinel lherzolites, harzburgites and dunites. Although their mineralogical compositions are generally similar to those of spinel peridotites in off-craton settings, some contain pyroxenes and spinels that have unusually low Al2O3 contents more akin to those found in cratonic spinel peridotites. Furthermore, the tectonite peridotites have whole-rock major element compositions that tend to be significantly more depleted than non-cratonic mantle spinel peridotites (high MgO, low CaO, Al2O3 and TiO2) and resemble those of cratonic mantle. These compositions could have been generated by up to 30% partial melting of an undepleted mantle source. Petrographic evidence suggests that the mantle beneath the Wyoming craton was re-enriched in three ways: (1) by silicate melts that formed mica websterite and clinopyroxenite veins; (2) by growth of phlogopite from K-rich hydrous fluids; (3) by interaction with aqueous fluids to form orthopyroxene porphyroblasts and orthopyroxenite veins. In contrast to their depleted major element compositions, the tectonite peridotites are mostly light rare earth element (LREE)-enriched and show enrichment in fluid-mobile elements such as Cs, Rb, U and Pb on mantle-normalized diagrams. Lack of enrichment in high field strength elements (HFSE; e.g. Nb, Ta, Zr and Hf) suggests that the tectonite peridotites have been metasomatized by a subduction-related fluid. Clinopyroxenes from the tectonite peridotites have distinct U-shaped REE patterns with strong LREE enrichment. They have 143Nd/144Nd values that range from 0·5121 (close to the host minette values) to 0·5107, similar to those of xenoliths from the nearby Highwood Mountains. Foliated mica websterites also have low 143Nd/144Nd values (0·5113) and extremely high 87Sr/86Sr ratios in their constituent phlogopite, indicating an ancient (probably mid-Proterozoic) enrichment. This enriched mantle lithosphere later contributed to the formation of the high-K Eocene host magmas. The cumulate group ranges from clinopyroxene-rich mica peridotites (including abundant mica wehrlites) to mica clinopyroxenites. Most contain >30% phlogopite. Their mineral compositions are similar to those of phenocrysts in the host minettes. Their whole-rock compositions are generally poorer in MgO but richer in incompatible trace elements than those of the tectonite peridotites. Whole-rock trace element patterns are enriched in large ion lithophile elements (LILE; Rb, Cs, U and Pb) and depleted in HFSE (Nb, Ta Zr and Hf) as in the host minettes, and their Sr–Nd isotopic compositions are also identical to those of the minettes. Their clinopyroxenes are LREE-enriched and formed in equilibrium with a LREE-enriched melt closely resembling the minettes. The cumulates therefore represent a much younger magmatic event, related to crystallization at mantle depths of minette magmas in Eocene times, that caused further metasomatic enrichment of the lithosphere

    Identifying Organizational Stressors That Could Be a Source of Discomfort in Police Officers: A Thematic Review

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    The aim of this paper is to highlight the organizational factors that might influence perceived discomfort in police officers. The studies included in the thematic review referred to specific factors, not the general terms “organizational stressors” or “workplace stressors”. It is important to emphasize this distinction because most studies use the general term “organizational stressor” (referring to context) to distinguish from “operational stressor” (referring to content, such as exposure to danger, threat, and trauma). For our purposes, we selected the studies that examined specific organizational factors. The results indicate that organizational social support, organizational culture, leadership, and bureaucracy are the organizational factors associated with police officers’ perceived discomfort. These organizational factors could have negative impacts on individuals, perceptions of stigma when contacting support services, anxiety and depressive symptoms, burnout, PTSD, and suicidal thoughts, among others

    Hopelessness in Police Officers and Its Association with Depression and Burnout: A Pilot Study

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    Hopelessness is a particularly critical condition and a risk factor for suicide. Many studies have reported that this condition is common in some occupations and is associated with high stress that is not properly managed. This study examined the prevalence of hopeless status (HS) in a sample of police officers (POs) and the association of hopelessness with depression, burnout, and suicidality. In total, 127 out of 231 POs participated in the survey; they were assessed with the Beck Hopelessness Scale, the Beck Depression Scale, and the Maslach Burnout Inventory. A total of 26.5% of POs reported hopelessness, and a significant association was found with depression and burnout; in individual cases, these conditions were associated with suicidal thoughts. In a multivariate logistic regression model adjusted for confounding variables, depression, emotional exhaustion, and reduction of personal accomplishment were significantly associated with HP status. Depression (OR = 3.02, 95% CI: 1–9.12) and emotional exhaustion (OR = 1.88, 95% CI: 1.06–3.32) significantly increased the risk of hopelessness, while personal accomplishment (OR = 0.57, 95% CI: 0.32–1) was a protective factor. Hopelessness appears to be a very important factor to consider when assessing POs’ mental health

    The Asymmetric Wind in M82

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    We have obtained detailed imaging Fabry-Perot observations of the nearby galaxy M82, in order to understand the physical association between the high-velocity outflow and the starburst nucleus. The observed velocities of the emitting gas in M82 reveal a bipolar outflow of material, originating from the bright starburst regions in the galaxy's inner disk, but misaligned with respect to the galaxy spin axis. The deprojected outflow velocity increases with radius from 525 to 655 km/s. Spectral lines show double components in the centers of the outflowing lobes, with the H-alpha line split by ~300 km/s over a region almost a kiloparsec in size. The filaments are not simple surfaces of revolution, nor is the emission distributed evenly over the surfaces. We model these lobes as a composite of cylindrical and conical structures, collimated in the inner ~500 pc but expanding at a larger opening angle of ~25 degrees beyond that radius. We compare our kinematic model with simulations of starburst-driven winds in which disk material surrounding the source is entrained by the wind. The data also reveal a remarkably low [NII]/H-alpha ratio in the region of the outflow, indicating that photoionization by the nuclear starburst may play a significant role in the excitation of the optical filament gas, particularly near the nucleus.Comment: 42 pages AASTeX with 16 figures; accepted for publication in ApJ; figures reformatted for better printin

    Nocturnal hypoglycaemia in type 1 diabetic patients, assessed with continuous glucose monitoring: frequency, duration and associations

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    WSTĘP. W niniejszej pracy określono ilościowo częstość występowania i czas trwania epizodów nocnej hipoglikemii u chorych na cukrzycę typu 1, leczonych ciągłym podskórnym wlewem insuliny (CSII) lub za pomocą wielokrotnych wstrzyknięć insuliny (MIT), wykorzystując ciągły podskórny pomiar glukozy z zastosowaniem czujnika. METODY. Czujnik mikrodializacyjny był noszony w warunkach domowych przez 24 pacjentów leczonych CSII (średnie stężenie HbA1c 7,8 ± 0,9%) oraz przez 33 pacjentów, u których stosowano MIT (średnie stężenie HbA1c 8,7 ± 1,3%) przez 48 godzin. Oceniano częstość występowania i czas trwania epizodów hipoglikemii oraz związek między stężeniem HbA1c, czasem trwania cukrzycy, sposobem jej leczenia (CSII vs. MIT), wartościami glikemii na czczo oraz przed spoczynkiem nocnym, całkowitą dobową dawką insuliny, a także średnimi wartościami glikemii w nocy a częstością występowania i czasem trwania epizodów hipoglikemii. WYNIKI. Epizody nocnej hipoglikemii z wartościami glikemii ≤ 3,9 mmol/l wystąpiły u 33,3% pacjentów w obu grupach - zarówno w grupie leczonej CSII (8/24), jak i stosującej MIT (11/33). średni czas trwania hipoglikemii (± SD; mediana, przedział międzykwartylowy) wynosił 78 min na noc (± 76; 57, 23-120) u chorych poddanych CSII oraz 98 min na noc (± 80; 81, 32-158) u pacjentów stosujących MIT. W analizie metodą regresji wieloczynnikowej wykazano, że glikemia przed spoczynkiem nocnym najsilniej wiąże się z częstoœcią (p = 0,026) oraz czasem trwania (p = 0,032) epizodów nocnej hipoglikemii. WNIOSKI. Ciągłe monitorowanie glikemii z wykorzystaniem metody mikrodializy umożliwiło bardziej precyzyjne określenie ilościowe częstoœci występowania i czasu trwania epizodów nocnej hipoglikemii u chorych na cukrzycę typu 1. Parametry te wiążą się głównie z wartościami glikemii przed spoczynkiem nocnym.AIMS. We quantified the occurrence and duration of nocturnal hypoglycaemia in individuals with type 1 diabetes treated with continuous subcutaneous insulin infusion (CSII) or multiple-injection therapy (MIT) using a continuous subcutaneous glucose sensor. METHODS. A microdialysis sensor was worn at home by 24 patients on CSII (mean HbA1c 7.8 ± 0.9%) and 33 patients on MIT (HbA1c 8.7 ± 1.3%) for 48 h. Occurrence and duration of nocturnal hypoglycaemia were assessed and using multivariate regression analysis, the association between HbA1c, diabetes duration, treatment type (CSII vs. MIT), fasting and bedtime blood glucose values, total daily insulin dose and mean nocturnal glucose concentrations, and hypoglycaemia occurrence and duration was investigated. RESULTS. Nocturnal hypoglycaemia ≤ 3.9 mmol/l occurred in 33.3% of both the CSII- (8/24) and MITtreated patients (11/33). Mean (± SD; median, interquartile range) duration of hypoglycaemia ≤ 3.9 mmol/l was 78 (± 76; 57, 23-120) min per night for the CSII- and 98 (± 80; 81, 32-158) min per night for the MIT-treated group. Multivariate regression analysis showed that bedtime glucose value had the strongest association with the occurrence (p = 0.026) and duration (p = 0.032) of nocturnal hypoglycaemia. CONCLUSIONS. Microdialysis continuous glucose monitoring has enabled more precise quantification of nocturnal hypoglycaemia occurrence and duration in type 1 diabetic patients. Occurrence and duration of nocturnal hypoglycaemia were mainly associated with bedtime glucose value
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