Judul: Efek Paparan Insektisida Deltametrin Pada Kerbau  Terhadap Angka Gigitan Nyamuk Anopheles vagus pada Manusia
Abstrak: Study was carried out to observe the effect of deltamethrin insecticide application against the biting activity of Anopheles vagus, on human being at Cikarawang, Bogor, since September to November 2004. Insecticide (deltamethrin) was used as lotion and rubbed over the buffaloes body followed by observation the biting activity of mosquitoes (with emphasize on Anopheles mosquitoes group) indoor and outdoor as well. The efficacy of delthamethrin against the Anopheles mosquitoes was observed on the buffaloes prior of trials. Eigth species of Anopheles was collected namely, A. vagus, A. indefinitus, A.aconitus, A.nigerimus, A. annularis, A. barbirostris, dan A. tesselatus. A. vagus is dominant and collected for 743 (84,82 %) over the all collections. The protection period of deltamethrin on the body of buffaloes reached out of 95 % for only 3 days. The protection on the humans body was only observed for Anopheles vagus. Utilization of systemic insecticides on the buffaloes should be attempted to gain the optimal results, in protecting the mosquitoes biting activity.
Keyword: 

Judul: Pemanfaatan Ternak dalam Pengendalian Nyamuk Vektor Penyakit
Abstrak: Mosquitoes are insects that cause the most health problems in society, as nuisance insects and vector of various diseases such as malaria, dengue hemorrhagic fever, chikungunya, Japanese Encephalitis, dirofilariasis, filariasis, St. Louis Encephalitis and West Nile Virus. Application of zooprophylaxis as the utilization of cattle to divert mosquito bite from human to animal has not been done in Indonesia. This study was aimed to determine the effect of the placement of cattle around houses to reduce mosquitoes biting to human. Mosquitoes collection on human were done by Bare Leg Collection (BLC) around the houses with and without cattle placement. In the meantime, mosquitoes which come to cattle caught by Magoon trap. The result showed that the density of Cx. sitiens which known as vector of Japanese Encephalitis was 12,05 mosquitoes/man/hour at the houses with cattle and was 16,31 mosquitoes/man/hour at houses without cattle, and very high in cattle was 54,38 mosquitoes/cattle/hour. Density of Anopheles which known as vector of malaria did not show the difference between around houses with and without cattle placement. An. vagus density at house with or without cattle were same (0,01 mosquitoes/man/hour), but very high at cattle (6,12 mosquitoes/cattle/hour). This research showed that placement of cattle as zooprophylaxis application has good potency to reduce mosquito contact to human, which is means it could reduce mosquitoes borne diseases transmission.
Keyword: Bogor Agricultural University (IPB), Zooprophylaxis, Magoon trap, Culex, Cattle, Bare Leg Collection, Anopheles

Judul: Characterizations of low alloy steel sae 4422  plated with chromic acid (Cro3)
Abstrak: Characterizations of low alloy steel SAE 4422 plated with chromic acid (CrOrO3) was use Optical Microscopy (OM), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), RD),Energy Dispersive Analysis of X-Ray (EDAX), Hardness Test and Roughness Test. Microstructures analysis exhibits cracks and grain boundaries microcracks as a characteristics of chrome metal found at plating metal. Perlite and Ferrite as grains of steel found at base metal with grain boundaries around it. Phase analysis of plating metal appropriate to chrome metal with lattice constant (a) is 2.559 Å and phase analysis of base metal appropriate to iron ferrite with lattice constant (a) is 3.318 Å. Both plating and base metal have cubic system. Chemical analysis of plating metal at surface section exhibits that cracks area have highest value of carbon element compare with grains and grains boundaries area. While chemical analysis of base metal at cross section exhibits that perlite have highest value of carbon element compare with ferrite and grain boundaries. The hardness value of plating metal at surface section and cross section are 753 and 637 VHN. While, the hardness value of base metal and interface area at cross section are 205 and 373 VHN. The roughness value at measurement points of chrome surface for as received sample are 0.445 μm. Observation used Optical Microscopy and Scanning Electron Microscopy exhibits surface irregularities combine to form surface texture of plating metal at surface section.
Keyword: