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There were two most found genera of plant parasitic nematodes from garlic plantation in Magelang, Central Java, Indonesia which suffered losses due to bulb rot, Aphelenchoides and Helicotylenchus. Polymerase Chain Reaction (PCR) was conducted using a pair of universal nematode primer (D2A/D3B) to determine the Aphelenchoides and Helicotylenchus species from those host. Both genera were amplified at ~780 bp. The Blast-N results for the Aphelenchoides showed high identity to Aphelenchoides varicaudatus from Yunnan China (HQ283353) with 99.47 % identity, while the Helicotylenchus showed 95.22 % identity to Helicotylenchus erythrinae from Colombia (MT321739). From morphological and molecular data, we confirm that the Aphelenchoides species is A. varicaudatus. Based on female morphological character, Helicotylenchus species refers to H. erythrinae. Which is also supported by its nucleotide alignment which has same region character as H. erythrinae (MT321739). This is the first report of molecular characterization of H. erythrinae in Indonesia.

Artificial Insemination (AI) in this study uses the results of sexing liquid semen, which aims to get the calf following the objective of the breeding institution that is producing Bali cows. The study was conducted at Balai Pembibitan Ternak Unggul and Hijauan Pakan Ternak located in Pangyangan, Pulukan Sub district, Jembrana Regency, Bali. The study was conducted on July 7, 2019 until November 7, 2019. The research material was 45 Bali heifers. Bali heifer was synchronized using Enzaprost@, after showing signs of estrus, double doses artificial insemination at 2 hours after estrus and 8 hours after estrus. The Bali heifer was inseminated with non-sexing and sexing liquid semen using andromed diluent, P0 = non-sexing liquid semen, P1 = liquid semen by the Percoll Density Gradient Centrifugation (PDGC) method in the lower layer and P2 = liquid semen by the Egg White Gradient Sedimentation (EWS) method in the upper layer. Pregnancy evaluation is calculated based on Non-Return Rate (NRR) and Conception Rate (CR). The results showed Non-Return Rate (NRR) P0, P1 and P2 = 86.67%, 60% and 53.33%. While the Conception Rate (CR) at P0, P1 and P2 is 53.33%, 13.33% and 26.67%.

Dental gypsum products in Indonesia are mainly imported from countries with non-tropical weather. Mostly, these gypsum products marketed in Jakarta are without adequate packaging, data or manipulative and maintenance instructions, which can cause misuse & abuse in the materials manipulation and handling. The purpose of this study was to evaluate the W/P ratio, setting time and compressive strength of dental stone type III and IV in relation with room temperature condition and relative humidity in Jakarta, Indonesia. One hundred and eighty dental stone Type III (unlabelled Blue Hard Stone; Giludur, Germany: Moldaroc, Germany) and Type IV (New Fujirock, Japan; Glastone, USA; unlabelled Quickstone) specimens were made as recommended by ISO 6873-1983 for setting time (with Vicat needle) and compressive strength determination (Shimadzu mechanical testing machine) with W/P ratio variables of 0.28; 0.29; 0.30 for Type III and 0.20; 0.21; 0.22 for type IV. The tests were conducted in 2 rooms with different temperature and humidity and with and without air-conditioned. Statistical analysis using T-test. The results shows that the increasing of W/P ratio will decrease the dental stone type III and IV setting time. Jakarta condition of high room temperature and relative humidity significantly shorten the setting time of Moldaroc and New Fujirock. The rest of the stones were reduced statistically insignificant. It can be concluded that the temperature and humidity in Jakarta can influence the setting time and compressive strength of dental stone type III and IV. However, since the setting time and strength values are still within the ISO standard, these stones can be accepted and used in Indonesia.

The conversion is accomplished by pyrolyzing plastic bag waste at relatively low temperatures, around 50-225OC, and using a bentonite catalyst. The four products are alternative oils consisting of gasoline, kerosene, diesel, and non-condensable gas. The pyrolysis procedure is as follows: (a). 3 kg of chopped plastic waste mixed with a mass fraction of bentonite catalyst of around 0.035-0.0125 of the weight of plastic waste and then put into the pyrolysator; (b). the pyrolysator is heated with 1.5 kg of liquid petroleum gas (LPG) for 2-3 hours at a temperature ranging from 50-225oC; (c). pyrolysis results are stored separately in 3 pots: gasoline, kerosene, and diesel; (d). to clarify pyrolysis results by adsorption using a sand filter. The variables studied were the polypropylene (PP) and polyethylene (PE) plastic materials type and the effect of the mass fraction of bentonite catalyst ranging from 0.035 to 0.125. The research obtained relatively good results as follows. Pyrolysis of 3 kg of PP plastic waste with the mass fraction catalyst of 0.100 yielded 44.00% alternative gasoline, 10.76% alternative kerosene, 21.07% alternative diesel, and the remaining non-condensable gases. The flash (ASTM D7094) points of alternative gasoline, alternative kerosene, and alternative diesel are 84˚C, 68˚C, and 100˚C, respectively. The calorific value of each fuel product is 10,970 cal/g for alternative gasoline, 10,965 cal/g for alternative kerosene, and 10,816 cal/g for alternative diesel. In addition, the pyrolysis of PE plastic waste with the mass fraction of catalyt of 0.100 produced a yield of 27.65% for alternative gasoline, 17.11% for alternative kerosene, and 43.79% for alternative diesel, and the remaining was non-condensable gases. The respective flash points (ASTM D7094) of alternative gasoline, alternative kerosene, and alternative diesel are 84˚C, 70˚C, and 98˚C. The calorific values are alternative gasoline 10,979 cal/g, alternative kerosene 11,008 cal/g, and alternative diesel 11,027 cal/g.

ABSTRAK Pada penelitian ini telah dilakukan perancangan dan implementasi antena mikrostrip untuk aplikasi generasi kelima (5G) pada frekuensi 3.5 GHz. Parameter yang diinginkan berdasarkan pada posisi kebijakan publik Huawei, posisi kebijakan publik Qualcomm, dan artikel 3rd Generation Partnership Project (3GPP) Rel-15. Antena mikrostrip memiliki bandwidth yang sempit, oleh karena itu beberapa modifikasi digunakan, yaitu teknik proximity coupled dan defected ground structure (DGS). Tahap pertama adalah menghitung dimensi awal antena, kemudian disimulasikan menggunakan HFSS Ansoft. Simulasi dimulai dari simulasi dimensi awal, menambahkan teknik proximity coupled, dan penerapan DGS hingga parameter antena yang diinginkan tercapai. Aktivitas pengukuran dilakukan setelah simulasi dan optimasi telah selesai dikerjakan. Hasil dari pengukuran, gain bertambah menjadi 6.6 dB, bandwidth berkurang sebesar 65.2 MHz, Voltage Standing Wave Ratio (VSWR) dan return loss masing-masing 1.31 dan -17.436 dB. Kata kunci: antena mikrostrip, proximity coupled, DGS, 5G, 3.5 GHz ABSTRACT This research has performed the design and implementation of microstrip antenna for fifth generation (5G) application, at frequency 3.5 GHz. The desired parameters are based on Huawei public policy position, Qualcomm public policy position, and Rel-15 3rd Generation Partnership Project (3GPP) article. Since microstrip antenna has narrow bandwidth, some modification are conducted, namely proximity coupled feeding and defected ground structure (DGS). The first stage is calculating the initial dimension of the antenna, finally the antenna is simulated and optimized. The simulation starts from simulating the initial dimension, then applying the proximity coupled feeding, after that employing the DGS until the desired antenna is achieved. The final stage is fabricate the antenna based on simulation then measure it. The measurement results show that the gain is increased to 6.6 dB, the bandwidth is reduced by 65.2 MHz, the Voltage Standing Wave Ratio (VSWR) and return loss are 1.31 and -17.436 dB. Keywords: microstrip antenna, proximity coupled, DGS, 5G, 3.5 GHz

Abstract Background This study investigated the infant feeding practices of participating mothers who were recruited into a research project aimed at improving the nutritional status of mildly wasted children (< -1.0 to ≥ -1.5 Weight-for-Height Z-scores) aged ≥ 6 to < 60 months on Nias Island, Indonesia. Methods Cross-sectional, questionnaire-based interview of mothers of the index children (n = 215) who were admitted to the community program for mildly wasted children in the study area. Four focus groups and twenty in-depth interviews were conducted to explore further information on infant feeding practices in the study area. Results Retrospective results indicated that 6% of the mothers never breastfed. Fifty two percent of mothers initiated breastfeeding within six hours of birth, but 17% discarded colostrum. Exclusive breastfeeding until 6 months of age was practiced by 12%. Seventy-four percent of the mothers offered supplementary liquids besides breast milk within the first 7 days of life, and 14% of infants received these supplementary liquids from 7 days onwards until 6 months of age. Moreover, 79% of the infants were given complementary foods (solid, semi-solid, or soft foods) before 6 months of age. About 9% of the children were breastfed at least two years. Less than one in five of the mildly wasted children (19%) were breastfed on admission to the community program. Qualitative assessments found that inappropriate infant feeding practices were strongly influenced by traditional beliefs of the mothers and paternal grandmothers in the study areas. Conclusion Generally, suboptimal infant feeding was widely practiced among mothers of mildly wasted children in the study area on Nias Island, Indonesia. To promote breastfeeding practices among mothers on Nias Island, appropriate nutrition training for community workers and health-nutrition officers is needed to improve relevant counseling skills. In addition, encouraging public nutrition education that promotes breastfeeding, taking into account social-cultural factors such as the influence of paternal grandmothers on infant feeding practice, is needed.

Objective: Comparing the clinical outcomes of laparoscopic and abdominal sacrocolpopexy in vaginal vault prolapse post-hysterectomy’s patient. Method: Systematic search data is performed on medical database (PUBMED, Cochrane Database) using keyword:(1) vault prolapse [title] AND (2) laparoscopic[title] AND sacrocolpopexy[title]. Inclusion criteria:(1) randomized controlled trial and observational studies, (2) women with vaginal vault prolapse post hysterectomy, (3) intervention studied: laparoscopic (LSC) and abdominal sacrocolpopexy (ASC), (4) the entire fully accessible papers can be accessed and data can be accurately analyzed. Comparison about clinical outcomes of LSC and ASC was performed using narrative analysis and meta-analysis (RevMan). Results: Three studies compared clinical outcomes of LSC and ASC with a total of 243 samples (118 in LSC and 125 in ASC group). There was no significant difference in the incidence of complications between LSC and ASC (OR 1.10;95%CI 0.58-2.08). LSC was associated with less blood loss (MD 111.64 mL,95%CI-166.13 - -57.15 mL) and shorter length of hospital stay (MD -1.82 days;95%CI -2.52- -1.12 days) but requires a longer operating time (MD 22.82 minutes,95%CI 0.43-45.22 minutes). There was no statistically significant difference to anatomical outcomes (measurement of point C on POP-Q), subjective outcomes measured by PGI-I and reoperation numbers (repeat surgical interventions) for prolapse recurrence between LSC and ASC groups after one year of follow-up. Conclusions: LSC showed similar anatomic results compared to ASC with less blood loss and shorter length of hospital stay in management patient with vaginal vault prolapse.