63 research outputs found

    Sistem Penghawaan Alami Ruang Produksi Batik Barong Gung Di Tulungagung

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    Kabupaten Tulungagung merupakan salah satu daerah penghasil batik yang memiliki potensi kecepatan angin cukup tinggi yang dapat dimanfaatkan untuk memenuhi Kenyamanan ventilasi pekerja melalui penurunan suhu ruang akibat suhu pemanasan yang mencapai 800C dari aktivitas nglorod dan mengeringkan pola batik printing. Pada penelitian ini akan dilakukan pengukuran pada kondisi eksisting ruang produksi yang meliputi kecepatan angin, suhu dan prosentase luas bukaan terhadap luas lantai. Hal tersebut dilakukan untuk mengetahui sistem penghawaan alami pada eksisting telah memenuhi Standart Nasional Indonesia (SNI) 03-6572-2001 atau belum. Dari kajian ini diketahui penghawaan alami pada ruang produksi batik dapat diwujudkan melalui pengaturan layout area aktivitas dan bukaan. Faktor tersebut akan saling mempengaruhi untuk memenuhi Kenyamanan ventilasi di dalam ruang yaitu suhu 28 0C dan kecepatan angin 0,6 m/s yang masih berada pada rentang suhu dan kecepatan angin yang disyaratkan oleh SNI 03-6572-2001 dan Keputusan Menteri Kesehatan Republik Indonesia Nomor 1405/MENKES/SK/XI/2002 tentang Persyaratan Kesehatan Lingkungan Kerja Perkantoran dan Industri. Program ANSYS digunakan untuk mengetahui kontur suhu dan kecepatan angin di dalam ruang

    Morphological Study of an Undescribed Additional Head of Quadriceps Femoris: A Cadaveric and Radiological Study

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    BACKGROUND: The quadriceps femoris (QF) consists of rectus femoris and the three vasti. Recently, an additional muscle head of QF was described. But the description and knowledge regarding the attachments, variability and morphometry of the additional muscle head of the quadriceps femoris is lacking in South Indian population. AIM OF THE STUDY: To confirm the presence of an undescribed additional head of quadriceps femoris by anatomical dissection and radiological techniques OBJECTIVES: Cadaveric Study: 1. To locate the attachments of the additional head of quadriceps femoris muscle. 2. To describe the morphology of the additional head. 3. To study the motor innervation pattern and vascular supply of the additional muscle head. Radiological Study: To study the incidence of the additional head of quadriceps in MRI. MATERIALS AND METHODS: Ethical approval was obtained from the institutional review board. Forty one human lower limbs were dissected to sought out the presence of the additional muscle head of QF by retracting the vastus lateralis laterally. Branches of the femoral artery and femoral nerve supplying the additional muscle head were traced. The anatomy of the additional muscle head, if present, was studied with respect to its location, origin, its aponeurosis and neurovascular bundle. Retrospective analysis of 102 MR images of the patients was done. Since fourteen MR images were used for pilot study, the data was analysed for 88 MR images. As the additional muscle head of quadriceps femoris was not reported earlier using MR imaging, high resolution MRI scan was done on 12 cadaveric lower limbs to look for the presence of the additional head of quadriceps femoris and followed by anatomical dissection to confirm its presence or absence. Data was entered in Microsoft excel and statistical analysis was performed using STATA. V.13.1. Descriptive analysis was done to find out mean, median and standard deviation of the variables. Fisher’s exact test was done to find out whether there were any gender differences in the incidence of additional muscle head in cadavers. Pearson Chi-square test was done to find out whether there is any significant difference between the right and left side of the cadaver. RESULTS: The additional muscle head was present in 43.9% of the lower limbs and was constantly located in between the vastus lateralis and the vastus intermedius. It inserted either as a muscle belly or as an aponeurosis into vastus lateralis (22.22%) or vastus intermedius (55.56%) or directly into the base of patella. There was no gender discrimination in the length, breadth and thickness of the additional muscle head. The additional muscle head received its vascular supply from the lateral circumflex femoral artery and was innervated by the femoral nerve. The incidence of the additional head of QF analyzed by MR imaging was 30.68%. The cadaveric MRI showed 100% concordance rate. CONCLUSION: This study demonstrated the presence of additional muscle head of quadriceps femoris - 43.9% by cadaveric dissection and 30.68% by radiological techniques

    Caldera resurgence during the 2018 eruption of Sierra Negra volcano, Galápagos Islands.

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    Recent large basaltic eruptions began after only minor surface uplift and seismicity, and resulted in caldera subsidence. In contrast, some eruptions at Galápagos Island volcanoes are preceded by prolonged, large amplitude uplift and elevated seismicity. These systems also display long-term intra-caldera uplift, or resurgence. However, a scarcity of observations has obscured the mechanisms underpinning such behaviour. Here we combine a unique multiparametric dataset to show how the 2018 eruption of Sierra Negra contributed to caldera resurgence. Magma supply to a shallow reservoir drove 6.5 m of pre-eruptive uplift and seismicity over thirteen years, including an Mw5.4 earthquake that triggered the eruption. Although co-eruptive magma withdrawal resulted in 8.5 m of subsidence, net uplift of the inner-caldera on a trapdoor fault resulted in 1.5 m of permanent resurgence. These observations reveal the importance of intra-caldera faulting in affecting resurgence, and the mechanisms of eruption in the absence of well-developed rift systems

    Acceptability of Condom Promotion and Distribution Among 10-19 Year-Old Adolescents in Mpwapwa and Mbeya Rural Districts, Tanzania.

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    \ud The HIV/AIDS pandemic remains a leading challenge for global health. Although condoms are acknowledged for their key role on preventing HIV transmission, low and inappropriate use of condoms persists in Tanzania and elsewhere in Africa. This study assesses factors affecting acceptability of condom promotion and distribution among adolescents in Mpwapwa and Mbeya rural districts of Tanzania. Data were collected in 2011 as part of a larger cross-sectional survey on condom use among 10-19 year-olds in Mpwapwa and Mbeya rural districts of Tanzania using a structured questionnaire. Associations between acceptability of condom promotion and distribution and each of the explanatory variables were tested using Chi Square. Multivariate logistic regression model was used to examine independent predictors of the acceptability of condom promotion and distribution using STATA (11) statistical software at 5% significance level. Mean age of the 1,327 adolescent participants (50.5% being males) was 13.5 years (SD = 1.4). Acceptance of condom promotion and distribution was found among 37% (35% in Mpwapwa and 39% in Mbeya rural) of the adolescents. Being sexually active and aged 15-19 was the strongest predictor of the acceptability of condom promotion and distribution (OR = 7.78, 95% CI 4.65-12.99). Others were; not agreeing that a condom is effective in preventing transmissions of STIs including HIV (OR = 0.34, 95% CI 0.20-0.56), being a resident of Mbeya rural district (OR = 1.67, 95% CI 1.28-2.19), feeling comfortable being seen by parents/guardians holding/buying condoms (OR = 2.20, 95% CI 1.40-3.46) and living with a guardian (OR = 1.48, 95% CI 1.08-2.04). Acceptability of condom promotion and distribution among adolescents in Mpwapwa and Mbeya rural is low. Effect of sexual activity on the acceptability of condom promotion and distribution is age-dependent and was the strongest. Feeling comfortable being seen by parents/guardians buying or holding condoms, perceived ability of condoms to offer protection against HIV/AIDS infections, district of residence and living arrangements also offered significant predictive effect. Knowledge of these factors is vital in designing successful and sustainable condom promotion and distribution programs in Tanzania.\u

    New physical characterization of the Fontana Lapilli basaltic Plinian eruption, Nicaragua

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    The Fontana Lapilli deposit was erupted in the late Pleistocene from a vent, or multiple vents, located near Masaya volcano (Nicaragua) and is the product of one of the largest basaltic Plinian eruptions studied so far. This eruption evolved from an initial sequence of fluctuating fountain-like events and moderately explosive pulses to a sustained Plinian episode depositing fall beds of highly vesicular basaltic-andesite scoria (SiO2 > 53 wt%). Samples show unimodal grain size distribution and a moderate sorting that are uniform in time. The juvenile component predominates (> 96 wt%) and consists of vesicular clasts with both sub-angular and fluidal, elongated shapes. We obtain a maximum plume height of 32 km and an associated mass eruption rate of 1.4 × 108 kg s−1 for the Plinian phase. Estimates of erupted volume are strongly sensitive to the technique used for the calculation and to the distribution of field data. Our best estimate for the erupted volume of the majority of the climactic Plinian phase is between 2.9 and 3.8 km3 and was obtained by applying a power-law fitting technique with different integration limits. The estimated eruption duration varies between 4 and 6 h. Marine-core data confirm that the tephra thinning is better fitted by a power-law than by an exponential trend

    Drawing firmer conclusions: autistic children show no evidence of a local processing bias in a controlled copying task

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    Drawing tasks are frequently used to test competing theories of visuospatial skills in autism. Yet, methodological differences between studies have led to inconsistent findings. To distinguish between accounts based on local bias or global deficit, we present a simple task that has previously revealed dissociable local/global impairments in neuropsychological patients. Autistic and typical children copied corner elements, arranged in a square configuration. Grouping cues were manipulated to test whether global properties affected the accuracy of reproduction. All children were similarly affected by these manipulations. There was no group difference in the reproduction of local elements, although global accuracy was negatively related to better local processing for autistic children. These data speak against influential theories of visuospatial differences in autism

    Mid-Sea and Land Based Wind Measurement for Technology Demonstrator

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