504 research outputs found

    Perubahan Perilaku Masyarakat Jawa dalam Penyelenggaraan Resepsi Pernikahan di Kota Surakarta

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    The wedding party for the Javanese community is the main event from a series of the wedding events. The wedding reception was held twice in the Javanese community. The reception was held by female (bride) family and male (groom) family. Every event of the wedding has a different ceremonial procession. The purpose of this study was to determine the form of behavioral changes in the Javanese community in organizing wedding receptions or party and the factors which influence the organization of the wedding reception. The subject of this study is Javanese society in Surakarta. This study was descriptive qualitative study and analyzed using behavioral sociological theory by BF Skinner and adapted theory by Robert K. Merton. The data collection in this study was used observation techniques involving 26 informants. The sampling technique used was purposive sampling. Data analysis technique used was an interactive analysis technique that consists of three components. Those are data reduction, data display and conclusion. The results of the study showed that there has been a change in the implementation of a traditional wedding reception in Javanese society. The changes are the result of the adjustment between the old traditions of Javanese culture and modern changes. The changes cannot be separated from the role of couple\u27s parents as organizers. The parent\u27s decisions in this event is a part of the parent\u27s response from the surrounding influences. The adjustments in organizing the reception is due to several factors including the change of parents\u27s mindset, the influence of the environment and others. The changes of series of processions in the wedding ceremony is a proof that Javanese society always changes following the times

    Analisa Faktor-faktor Yang Mempengaruhi Penerimaan Dan Penggunaan Aplikasi Go-jek Menggunakan Unified Theory of Acceptance and Use of Technology (Utaut)

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    Gojek Application is android based application that is the entrance for customers to obtain services provided by PT Gojek Indonesia. This research was conducted to analyze the factors that affect the acceptance and use of the Gojek Application using United Theory of Acceptance and Use of Technology (UTAUT). This reseacrh was conducted on 50 people Gojek Application users are found in several locations of offices, malls, schools, colleges and the environment surrounding the housing in Jakarta. Based on research, it is known that the simultaneous factor performance expectancy, effort expectancy, social influence, and facilitating conditions and significant positive effect on use behavior Gojek Application. While partially, it is known that performance expectancy and social influence which has positive and significant effect on use behavior Gojek Application. While effort expectancy and facilitating condititions not have a positive and significant effect on use behavior Gojek Application

    The mechanical effects of extracorporeal irradiation on bone

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    Extracorporeal irradiation of an excised tumour-bearing segment of bone followed by its reimplantation is a technique used in bone sarcoma surgery for limb salvage when the bone is of reasonable quality. There is no agreement among previous studies about the dose of irradiation to be given: up to 300 Gy have been used. We investigated the influence of extracorporeal irradiation on the elastic and viscoelastic properties of bone. Bone was harvested from mature cattle and subdivided into 13 groups: 12 were exposed to increasing levels of irradiation: one was not and was used as a control. The specimens, once irradiated, underwent mechanical testing in saline at 37°C. The mechanical properties of each group, including Young's modulus, storage modulus and loss modulus, were determined experimentally and compared with the control group. There were insignificant changes in all of these mechanical properties with an increasing level of irradiation. We conclude that the overall mechanical effect of high levels of extracorporeal irradiation (300 Gy) on bone is negligible. Consequently the dose can be maximised to reduce the risk of local tumour recurrence

    Analisis Hasil Tangkapan Arad Modifikasi (Modified Small Bottom Trawl) Di Perairan Ppp Tawang Kendal Jawa Tengah

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    Arad (Small Bottom Trawl) merupakan alat penangkap ikan yang dominan di PPP Tawang, Kendal, Jawa Tengah. Modifikasi arad diperlukan agar arad menjadi alat penangkap ikan yang ramah lingkungan. Tujuan penelitian adalah menganalisis komposisi hasil tangkapan arad modifikasi dan membandingkan dengan arad genuine. Metode yang digunakan adalah experimental fishing yang dilaksanakan pada bulan April 2014 dengan jumlah setting 15 kali pada setiap arad. Komposisi hasil tangkapan dominan yang didapatkan mempunyai jenis spesies yang sama. Hasil tangkapan yaitu Udang Putih (Penaeus merguensis), Udang Ronggeng (Harpiosquilla raphidea), Kepiting (Scylla serrata), Sotong (Sepia oficinalis), Cumi-cumi (Loligo sp), serta jenis-jenis ikan demersal seperti Ikan Tigawaja (Otolithes ruber), Ikan Petek (Leiognathus sp), Ikan Ekor Kuning (Caesio erythrogaster), Ikan Kuniran (Upeneus sulphureus), Ikan Layur (Trichiurus savala). Berat rata-rata hasil tangkapan arad genuine adalah 6500,67 gram dan arad modifikasi adalah 2916,93 gram. Analisis stasistik uji t menunjukkan bahwa berat rata-rata hasil tangkapan arad genuine dan modifikasi berbeda nyata (thit=7,87 > ttabel=2,145). Ukuran panjang total hasil tangkapan dominan arad modifikasi yaitu Udang Putih (Penaeus merguensis) 7,5 – 19 dan Udang Ronggeng (Harpiosquilla raphidea) 6 – 15,5 lebih panjang dibandingkan arad genuine yaitu Udang Putih (Penaeus merguensis) 5 – 19 dan Udang Ronggeng (Harpiosquilla raphidea) 5,5 – 14. Perhitungan efektivitas penangkapan menunjukan arad genuine mempunyai nilai efektivitas 69% lebih besar dibandingkan arad modifikasi 31%. Small Bottom Trawl was a dominant fishing gear used in Fishery Port Beach, Tawang, Kendal Regency, Central Java. Modification of this gear was needed to make small bottom trawl more enviromentally friendly fishing gear. The aim of the research was to analyzed the total catch of the modified small bottom trawl and compared it with the genuine small bottom trawl. The methods used were experimental methods which held on April 2014 with 15 times total settings on each small bottom trawl. Dominant composition of the catch has the same species. The catch are Penaeus merguensis, Harpiosquilla raphidea, Crab (Scylla serrata), Sepia oficinalis, Squid (Loligo sp), and demersal fish species such as Otolithes ruber, Leiognathus sp, Caesio erythrogaster, Upeneus sulphureus, Trichiurus savala. The total catch weight average of genuine small bottom trawl was 6500,67 gram and modified small bottom trawl was 2916,93 gram. T-test statistics analyzed showed that the average weight of genuine and modified were significantly different (tcount=7,87 > ttable=2,145). The dominant catches total length of modified small bottom trawl were Penaeus merguensis 7,5 – 19 cm and Harpiosquilla raphidea 6 – 15,5 cm, these total length was longer than the genuine small bottom trawl total catch Penaeus merguensis 5 – 19 and Harpiosquilla raphidea 5,5 – 14 cm. Catch effectivity counts shoowed that genuine small bottom trawl has 69% effectivity rate, higher than the modified small bottom trawl with 31% effectivity rate

    Dynamo Transition in Low-dimensional Models

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    Two low-dimensional magnetohydrodynamic models containing three velocity and three magnetic modes are described. One of them (nonhelical model) has zero kinetic and current helicity, while the other model (helical) has nonzero kinetic and current helicity. The velocity modes are forced in both these models. These low-dimensional models exhibit a dynamo transition at a critical forcing amplitude that depends on the Prandtl number. In the nonhelical model, dynamo exists only for magnetic Prandtl number beyond 1, while the helical model exhibits dynamo for all magnetic Prandtl number. Although the model is far from reproducing all the possible features of dynamo mechanisms, its simplicity allows a very detailed study and the observed dynamo transition is shown to bear similarities with recent numerical and experimental results.Comment: 7 page

    The mechanical effect of extracorporeal irradiation on bone

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    Extracorporeal irradiation and re-implantation of a bone segment is a technique employed in bone sarcoma surgery for limb salvage in the setting of reasonable bone stock. There is neither consensus nor rationale given for the dosage of irradiation used in previous studies, with values of up to 300Gy applied. We investigated the influence of extracorporeal irradiation on the elastic and viscoelastic properties of bone. Bone specimens were extracted from mature cattle and subdivided into thirteen groups; twelve groups exposed to increasing levels of irradiation and a control group. The specimens, once irradiated, underwent mechanical testing in saline at 37˚C. Mechanical properties were calculated by experimental means which included Young’s Modulus, Poisson’s Ratio, Dissipation Factor, Storage Modulus, Loss Modulus and Dynamic Modulus. These were all obtained for comparison of the irradiated specimens to the control group. We found that the overall effect of increasing irradiation doses up to 300Gy seems to present negligible change, albeit negative, on the behavior of bone. However, the increase in Poisson’s ratio following extracorporeal irradiation treatment was statistically significant. Therefore, it is concluded that the overall mechanical effect of high levels of extracorporeal irradiation (300Gy) is minute, and could be administered to reduce the risk of malignancy recurrence

    Transcutaneous bilirubin level to predict hyperbilirubinemia in preterm neonates

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    Background: Hyperbilirubinemia is common in neonates, with higher prevalence among preterm neonates, which can lead to severe hyperbilirubinemia. Assessment of total serum bilirubin (TSB) and the use of a transcutaneous bilirubinometry (TcB) are existing methods that identify and predict hyperbilirubinemia. This study aimed to determine TcB cut-off values during the first day for preterm neonates to predict hyperbilirubinemia at 48 and 72 hours. Methods: This cohort study was conducted at Dr. Soetomo General Hospital from September 2018 to January 2019 a total of 90 neonates born ≤35 weeks. They were divided into two groups (Group I: 1000-1500 grams; Group II: 1501-2000 grams). The bilirubin levels were measured on the sternum using TcB at the ages of 12, 24, and 72 hours. TSB measurements were taken on the third day or if the TcB level reached phototherapy threshold ± 1.24 mg/dL and if TcB showed abnormal results (Group I: 5.76-8.24 mg/dL; Group II: 8.76-11.24 mg/dL). Hyperbilirubinemia was defined as TSB ≥7 mg/dL for Group I and >10 mg/dL for Group II. Results: In total, 38 Group I neonates and 48 Group II neonates were observed. Almost half of the neonates in Group I (45%) suffered from hyperbilirubinemia at the age of 48 hours, along with 46% of Group II at 72 hours. The best 24-hour-old TcB cut-off values to predict hyperbilirubinemia at 48 hours were calculated to be 4.5 mg/dL for Group I and 5.8 mg/dL for Group II. The determined 24-hour-old TcB value to predict hyperbilirubinemia at 72 hours was 5.15 mg/dL for Group II. Conclusion: TcB values in the early days of life can be used as hyperbilirubinemia predictors on the following days for preterm neonates. Close monitoring should be managed for those with TcB values higher than the calculated cut-off values

    Synergistic Interactions of H\u3csub\u3e2\u3c/sub\u3e and N\u3csub\u3e2\u3c/sub\u3e with Molten Gallium in the Presence of Plasma

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    The present study examines the interaction of hydrogen and nitrogen plasmas with gallium in an effort to gain insights into the mechanisms behind the synergetic effect of plasma and a catalytic metal. Absorption/desorption experiments were performed, accompanied by theoretical-computational calculations. Experiments were carried out in a plasma-enhanced, Ga-packed, batch reactor and entailed monitoring the change in pressure at different temperatures. The results indicated a rapid adsorption/dissolution of the gas into the molten metal when gallium was exposed to plasma, even at a low temperature of 100 °C. The experimental observations, when hydrogen was used, indicate that gallium acts as a hydrogen sink in the presence of plasma. Similar results were obtained with Ga in the presence of nitrogen plasma. In addition, density functional theory calculations suggest a strong interaction between atomic hydrogen and molten gallium. This interaction is described as a high formation of Ga-H species on the surface, fast diffusion inside the metal, and a steady state concentration of the gas in the bulk
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