REDD+ as the Future Cooperative Strategy between Korea and Indonesia

( Akhmad Viko Zakhary Santosa ),( Ho Sang Kang ),( Don Koo Lee ),( Go Eun Park ),( Joo Won Park ),( Hoi Jin Kim ),( Victor K. Teplyakov ) 한국임학회 2011 산림과학 공동학술대회 논문집 Vol.2011 No.-

Versatile Surface-coatable IR825-conjugated Fluorescent Polymer as a Dual-functional Biosensor for Synergistic Detection and Eradication of Bacteria

( Akhmad Irhas Robby ),( Sung Young Park ) 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.1

Low Social Support and Risk for Depression in People With Type 2 Diabetes Mellitus: A Systematic Review and Meta-analysis

Akhmad Azmiardi,Bhisma Murti,Ratih Puspita Febrinasari,Didik Gunawan Tamtomo 대한예방의학회 2022 예방의학회지 Vol.55 No.1

Objectives: Depression is a frequent complication of type 2 diabetes mellitus. This study aimed to investigate the relationship between low social support and risk for depression in people with type 2 diabetes through a meta-analysis. Methods: PubMed, ProQuest, SpringerLink, ScienceDirect, Scopus, the Cochrane Library, Embase, and Google Scholar were searched for English-language articles published up to 2021. Pooled adjusted odds ratios (aORs) were calculated using a random-effect model with 95% confidence intervals (CIs). Heterogeneity was evaluated by using the Cochrane Q test and I2 statistics. The risk of publication bias was estimated using a funnel plot, the Egger test, and the Begg test. The Joanna Briggs Institute Critical Appraisal Tools were used to assess the quality of evidence and the risk of bias. Results: Eleven studies were included in this meta-analysis, containing a total of 3151 people with type 2 diabetes mellitus. The pooled analysis showed that people with type 2 diabetes mellitus who had low social support had twice as high a risk of depression as those with high social support (aOR, 2.02; 95% CI, 1.51 to 2.70; p<0.001). A random-effect model was used because the heterogeneity was high (I2= 87%). Conclusions: Low social support was found to increase the risk of depression among people with type 2 diabetes mellitus. Further investigation into factors that may moderate this relationship is required.

Parasitoid wasp communities on oil palm plantation: Effects of natural habitat existence are obscured by lepidopteran abundance

Akhmad Rizali,Sri Karindah,Toto Himawan,Muhamad Luthfie Tri Meiadi,Bambang Tri Rahardjo,Nurindah,Bandung Sahari 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.3

The existence of natural habitat around agroecosystem plays a pivotal role in maintaining the presence of natural enemies especially parasitoids. Natural habitat can fail to support biological pest control in agroecosystem due to a particular condition. The objective of this research was to investigate the effect of natural habitat existence on parasitoid wasp communities in oil palm plantation. The ecological research was conducted in the oil palm plantation located in Central Borneo, Indonesia. Twelve plots of oil palm plantations with different habitat characteristics were selected. Insects were sampled using canopy knockdown fogging with a pyrethroid insecticide. In total, 237 species and 2669 individuals of parasitoid wasps belong to 15 families were collected from all research areas. The results showed that species richness and abundance of parasitoid wasps in oil palm plantation was affected by lepidopteran abundance and not by the existence of natural habitat. However, the distance and area of natural habitat influenced the species composition of parasitoid wasps. We concluded that the existence of natural habitat still can maintain the parasitoid wasps in oil palm plantation. Thus, efforts on maintaining parasitoid wasp diversity for management of biological control in oil palm plantation need to pay attention by conserving the natural habitats.

The Characteristic Eruptions of the Active Volcanoes of Indonesia in the Last Four Decades

Akhmad Zaennudin,Yun, Sung-Hyo 부산대학교 과학교육연구소 2006 교사교육연구 Vol.45 No.-

Indonesia has 129 active volcanoes that are distributed in Sumatra, Java, Lesser Sunda, Banda Arc, Maluku, and Sulawesi islands. It is about 13% active volcanoes that are found whole the world. Active volcanoes of Indonesia are divided into three categories, i.e.: A, B, and C types. A type is the volcanoes that are ever erupted at least once after 1600, B type is the volcanoes which are never erupted after 1600 but they are still active with solfataric activity, and C type is the volcanoes which are never recorded an eruption in historic time and only show fumaroles activities. There are 79 active volcanoes of A type, 29 volcanoes of B type, and 21 volcanoes of C type which are distributed. Every year about 10 to 12 of Indonesian active volcanoes increase in their activities, and two to four volcanoes are erupted with different characters. At least there are four characters of volcanic eruption of Indonesian active volcanoes that can be recognized in the last five decades. The first character is volcanoes with lava domes; the second is with a crater lake; the third is volcanoes with open vent system; the fourth is the volcanoes with gasses eruption, and the last is cones inside a caldera. 인도네시아의 수마트라섬, 자바섬, 소순다열도, 반다 아크 열도, 말루쿠 열도 및 술라웨시 열도 등에는 129좌의 활화산이 존재하며, 이들은 지구상에 있는 활화산의 13%를 차지한다. 인도네시아의 활화산은 3개의 영역 즉, A형, B형과 C형로 구분된다. A형은 1600년부터 한 번 이상 분화한 경험을 가진 활화산체이다. B형은 1600년 이후에는 분화하지 않았지만 현재에도 유황가스와 증기를 뿜어내는 화산체이다. C형은 역사시대에 분출한 경험이 없으며 단지 분기공 활동만이 있는 화산체이다. A형은 79좌, B형은 29좌, C형은 21좌가 분포한다. 매년 10 내지 12좌의 화산체에서 활동도가 증가하고 있으며 2 내지 4좌의 화산체가 서로 다른 활동 양상을 보여준다. 지난 40년동안 활동한 인도네시아의 활화산의 분화 특징은 5가지로 나눌 수 있다. 첫째는 용암돔을 형성한 화산체이며, 둘째는 화구호를 가진 화산체이고, 셋째는 열린 화도계를 가진 화산체이며, 네번째는 가스분화를 하는 화산체이며, 마지막은 칼데라내부의 화산구(丘)이다.

Apply Genetic Algorithm for Single Span Preflex Composite Girder Bridge

Aminullah Akhmad(아크마드아미눌라),Koo Min Se(구민세),Zhang Jiang Tao(장지앙따오),Jung Young Do(정영도) 대한토목학회 2007 대한토목학회 학술대회 Vol.2007 No.10

The effect of peer support in diabetes self-management education on glycemic control in patients with type 2 diabetes: a meta-analysis

Azmiardi Akhmad,Murti Bhisma,Febrinasari Ratih Puspita,Tamtomo Didik Gunawan 한국역학회 2021 Epidemiology and Health Vol.43 No.-

OBJECTIVES: Diabetes self-management education (DSME) programs are a strategy to maintain healthy behaviors. Nevertheless, limited evidence has been reported from systematic evaluations of the effects of DSME integrated with peer support on glycemic control. This study aimed to review the effectiveness of DSME interventions integrated with peer support on glycemic control in patients with type 2 diabetes. METHODS: A systematic search was carried out in electronic databases, including PubMed, Cochrane Library, ProQuest, SpringerLink, Science Direct, Scopus, and Google Scholar, for English-language articles published from 2005 until 2020. The effect size was estimated as the standard mean difference (SMD). The Cochrane Collaboration’s tool was employed to assess the risk of bias. RESULTS: Twelve studies were included in this study. DSME integrated with peer support effectively reduced glycated hemoglobin A1c (HbA1c) levels, with a statistically significant effect (SMD, -0.41; 95% confidence interval [CI], -0.69 to -0.13; p < 0.001). Programs with a sample size < 100 (SMD, -0.45; 95% CI, -0.79 to -0.11; p = 0.009), duration of intervention ≤ 6 months (SMD, -0.52; 95% CI, -0.96 to -0.07; p= 0.020), baseline HbA1c < 8.5% (SMD, -0.42; 95% CI, -0.77 to -0.07; p= 0.020), delivery by group (SMD, -0.28; 95% CI, -0.51 to -0.06; p= 0.010), and high frequency of contact (SMD, -0.29; 95% CI, -0.48 to -0.10; p= 0.003) had statistically significant effects on reducing HbA1c levels in patients with type 2 diabetes. CONCLUSIONS: DSME integrated with peer support effectively enhances glycemic control in patients with type 2 diabetes. Programs with smaller participants groups, shorter interventions, weekly meetings, and closer group sessions improved glycemic control in patients with type 2 diabetes.

DIETARY SILICA EFFECTS ON MINERAL METABOLISM IN LAMBS

Prabowo, Akhmad,Spears, J.W. Asian Australasian Association of Animal Productio 1992 Animal Bioscience Vol.5 No.2

Eighteen wether lambs averaging 32 kg were used to determine the effects of dietary silica, added as silicic acid, on mineral metabolism. Lambs were fed 1200 g daily of a coastal Bermuda grass based diet supplemented with either 0, .5 or 1.5% silicic acid. A 7-d total collection of urine and feces was conducted after lambs had adjusted to the dietary treatments for 19 days. Urinary excretion of silica was higher (p<.01) in lambs fed added silicic acid. Ruminal soluble concentrations of manganese tended to be lower (p<.10) and apparent absorption and retention of manganese were lower (p<.05) in lambs supplemented with silicic acid compared to control lambs. Apparent absorption and retention of calcium were slightly lower (p<.10) in silicic acid fed lambs. No differences in urinary between lambs fed .5 and those given 1.5% silicic acid. Phosphorus, magnesium, iron, zinc and copper absorption and retention were not affected by treatment.

Recyclable metal nanoparticle-immobilized polymer dot on montmorillonite for alkaline phosphatase-based colorimetric sensor with photothermal ablation of Bacteria

Robby, Akhmad Irhas,Park, Sung Young Elsevier 2019 Analytica chimica acta Vol.1082 No.-

<P><B>Abstract</B></P> <P>Development of simultaneous bacteria detection and eradication with simple, rapid, and reusable material is important in addressing bacterial contamination issues. In this study, we utilized the expression of alkaline phosphatase (ALP) from bacteria to design fluorescence ON/OFF system for bacteria detection, also using metal oxide nanoparticle for obtaining antibacterial activity and recyclability. The fluorescent-based biosensor with antibacterial activity was prepared by intercalating ALP-sensitive polymer dot (PD) containing β-cyclodextrin (β-CD) onto montmorillonite (MMT) as loading matrix <I>via</I> ionic exchange reaction, followed by immobilization of magnetic iron oxide (Fe<SUB>3</SUB>O<SUB>4</SUB>) and NIR-responsive cesium tungsten oxide (CsWO<SUB>3</SUB>). The PD-βCD-MMT/Fe<SUB>3</SUB>O<SUB>4</SUB>–CsWO<SUB>3</SUB> nanocomposite exhibited strong fluorescence intensity, which was quenched in the presence of bacterial ALP (0–1000 U/L) due to hydrolysis of <I>p</I>-nitrophenyl phosphate (NPP) into <I>p</I>-nitrophenol (NP) in the hydrophobic site of β-CD. Furthermore, the nanocomposite could detect both gram-negative <I>Escherichia coli</I> and gram-positive <I>Staphylococcus aureus</I> in the range of 10<SUP>1</SUP>–10<SUP>7</SUP> CFU/mL (LOD 5.09 and 4.62 CFU/mL, respectively), and showed high antibacterial activity against bacteria by generating photothermal heat under 5 min NIR irradiation, causing damage to bacterial cells. This material also demonstrated recyclability <I>via</I> magnetic field exposure due to the presence of Fe<SUB>3</SUB>O<SUB>4.</SUB> In addition, the fluorescence can be recovered following pH shock and re-conjugation of β-CD molecules. After 4 cycles, nanocomposite still showed stable photothermal effects and fluorescence-based bacteria detection. Thus, this reusable material offers promising approach for simultaneous bacteria detection and killing, which is simple, rapid, and effective.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Reusable material was designed for fluorometric sensing and photothermolysis of bacteria. </LI> <LI> The fluorescence ON/OFF sensing system was depended on the bacterial ALP activity. </LI> <LI> The LOD of fluorescence-based bacteria detection showed below 10<SUP>1</SUP> CFU/mL. </LI> <LI> Hybrid nanocomposite showed ±100% killing efficiency after 5 min NIR irradiation. </LI> <LI> Antibacterial/bacteria sensing showed excellent performance even after 4 cycles. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Development of Multi-scale Gridded Emission Inventory Mapping System in Indonesia

Driejana,Akhmad Riqqi 한국대기환경학회 2021 한국대기환경학회 학술대회논문집 Vol.2021 No.10

Emission inventory (EI) project had been done in Jakarta since 1990s. Later on, more EI were developed. The largest IE project was undertaken during 2013-2014. As part of the Ministry of Environment (MoE) initiative, EI were conducted in 14 Indonesian big cities, including Jakarta. In the predecessor EI study, the emission spatial distribution was calculated based on administrative boundary For better utilization in air quality management, nowadays grids are usually used to store and display emission data. Grids of 1 km × 1 km were applied in the later projects of the 14 cities. However, the grid origins for each city still were set arbitrarily, based in the outer boundary of the city. While it seemed fine for the 14 cities, the arbitrary origin would cause overlapping problem in the future when the neighboring cities also develop their EI. To resolve this forthcoming problem, an Indonesian Multiscale Grid System (IMGS) were developed to store and maintain environmental data. The main purpose of utilizing IMGS and GIS technology in emission inventory was to produce a spatially resolved emissions inventory for local emission management with an efficient and easily replicated methodology. IMGS is a GIS-based grid system that has a structure of raster data based on square cells. The cells are suitable for storing and visualizing continuous geographic phenomena. It has a national origin point and a numbering system which is compatible to national map index system. IMGS has seven resolutions (1°; 30"; 15"; 7"30’’; 2’30”; 30’’and 5’’) allowing application on local scale (e.g. parts of sub-district within a city); where the grids are nested and can be aggregated to a larger grid for IE in wider scale (e.g. multi-city), up to the national scale. The grid model had been designed to present, collocate, and store spatial data with a matrix structure. The grid system had been tested in Bandung City, where (CO₂) emissions were mapped in a fine scale that showed emission spatial variation on road links3) apping of area source from domestic emissions based on 30”-grid and a multi-city EI in Bandung Metropolitan area. The emission in a wider area can be aggregated to the national scale with larger grids. IMGS grids not only cover land areas but also the seas within Indonesian jurisdiction so it can be used to map emissions of sea and air transport.