scholarly journals HUBUNGAN SANITASI KANDANG SAPI DENGAN KEPADATAN LALAT DI KECAMATAN SOKARAJA KABUPATEN BANYUMAS

2021 ◽  
Vol 40 (1) ◽  
Author(s):  
Alfian Gifari Ardi ◽  
Budi Triyantoro ◽  
Teguh Widiyanto
Keyword(s):  
Musca Domestica ◽  
Cross Sectional

Kesehatan lingkungan adalah suatu kondisi lingkungan yang mampu menopang keseimbangan dinamis antara manusia dan lingkungan, serta melindungi kesehatan manusia melalui pencegahan penyakit yang diakibatkan oleh lingkungan. Salah satu vektor penyakit yang sering menimbulkan masalah dalam lingkungan, yaitu lalat. Lalat  sangat menyukai tempat yang kotor, salah satunya adalah kandang ternak. Kandang sapi juga pada umumnya kotor dan berbau, sehingga lalat banyak dijumpai di kandang ter-sebut, seperti lalat rumah (Musca domestica). Tujuan Penelitian yaitu untuk menganalisis hubungan sanitasi kandang dengan kepadatan lalat di Kecamatan Sokaraja Kabupaten Banyumas. Jenis penelitian ini adalah observasional yang bersifat dengan pendekatan Cross Sectional, penelitian ini dilakukan pada peternakan sapi yang ada di Kecamatan Sokaraja, untuk menilai sanitasi kandang sapi dan menganalisis kepadatan lalat di kandang sapi. Hasil observasi menunjukkan 10 kandang sapi, terdapat 7 kandang sapi yang memenuhi syarat dan 3 kandang yang tidak memenuhi syarat, sedangkan kepadatan lalat menunjukkan bahwa dari 10 kandang sapi terdapat 10 kandang sapi dengan kepadatan lalat sedang. Hasil analisis menggunakan uji  Korelasi Sperman rank  Korelasi Koefisien sebesar 0,076 0,05 artinya HA ditolak dan H0 diterima, yang berarti tidak ada hubungan sanitasi kandang dengan kepadatan lalat di kandang sapi, dari 10 kandang sapi terdapat 3 kandang tidak memenuhi syarat sanitasi. Kepadatan lalat di kandang sapi dikategorikan sedang sampai dengan tinggi. Perlu adanya, upaya meningkatkan sanitasi kandang sapi dalam hal pemberian desinfeksi, penggunaan APD, pencegahan kepadatan lalat, pembersihan kandang, pengelolaan limbah.

The Deposition of Airborne Droplets on dead House-flies (Musca domestica L.)

1959 ◽  
Vol 50 (2) ◽  
pp. 327-332 ◽  
Author(s):  
R. T. Jarman
Keyword(s):  
Musca Domestica ◽  
Collection Efficiency ◽  
Theoretical Calculations ◽  
Droplet Diameter ◽  
Cascade Impactor ◽  
House Fly ◽  
Cross Sectional ◽  
House Flies ◽  
Collecting Efficiency ◽  
Filtering Effect

An experimental laboratory study of the deposition of droplets on dead house-flies (Musca domestica L.) was made, using a spinning-top sprayer to produce a spray of uniformly sized oil droplets and a cascade impactor to measure the concentration of the spray of droplets, which were dyed. The deposits obtained on a dead house-fly and a cascade-impactor slide when these were exposed in turn to a wind of 1 m. per sec. in a wind tunnel were compared colorimetrically, and determinations thus made of the collection efficiency of the flies, defined as the volume of liquid deposited on an object expressed as a percentage of the volume that would have passed through the same cross-section as the object had that not been there.The measured collecting efficiency of a fly varied from about 70 per cent. (droplet dia. 27μ) to about 200 per cent. (droplet dia. 75μ), and was approximately twice that of a sphere with a cross-sectional area twice the projected frontal area of the fly. From theoretical calculations of the filtering effect of different elements of the vegetation, it is concluded that the optimum droplet diameter for deposition on flies in woodland is 20–40μ.

Localization of the clock controlling circadian rhythms in the first neuropile of the optic lobe in the housefly

2001 ◽  
Vol 204 (19) ◽  
pp. 3303-3310
Author(s):  
Monika Bałys ◽  
Elżbieta Pyza
Keyword(s):  
Circadian Rhythms ◽  
Musca Domestica ◽  
Compound Eye ◽  
Optic Lobe ◽  
Continuous Light ◽  
Constant Darkness ◽  
Cross Sectional ◽  
Circadian Oscillators ◽  
L1 And L2 ◽  
The Brain

SUMMARYThe visual system of a fly expresses several circadian rhythms that have been detected in the photoreceptors of the compound eye and in the first neuropile, the lamina, of the underlying optic lobe. In the lamina, axons of two classes of interneuron, L1 and L2, exhibit cyclical size changes, swelling by day and shrinking by night. These rhythmic size changes may be generated by circadian oscillators located inside and/or outside the optic lobe. To localize such oscillators, we have examined changes in the axonal cross-sectional areas of L1 and L2 within the lamina of the housefly (Musca domestica) under conditions of 12 h of light and 12 h of darkness (LD12:12), constant darkness (DD) or continuous light (LL) 24 h after the medulla was severed from the rest of the brain. After the lesion, the axon size changes of L1 and L2 were maintained only in LD conditions, but were weaker than in control flies. In DD and LL conditions, they were eliminated. This indicates that circadian rhythms in the lamina of a fly are generated central to the lamina and medulla neuropiles of the optic lobe. Cyclical changes of light and darkness in LD conditions are still able, however, to induce a weak daily rhythm in the axon sizes of L1 and L2.

scholarly journals IDENTIFIKASI JAMUR PADA LALAT DI YAYASAN TUNAS MULIA BANTAR GEBANG

2019 ◽  
Vol 2 (1) ◽  
pp. 1-6
Author(s):  
Ika Nurfitrianti ◽  
Maulin Inggraini ◽  
Noor Andryan Ilsan
Keyword(s):  
Aspergillus Niger ◽  
Aspergillus Fumigatus ◽  
Fusarium Oxysporum ◽  
Aspergillus Flavus ◽  
Musca Domestica ◽  
Cross Sectional

Pendahuluan: Yayasan Tunas Mulia, Bantar Gerbang merupakan sekolah alam yang terdapat di daerah Bantar Gebang. Siswa Yayasan Tunas Mulia tinggal didaerah TPST Bantar Gebang sehingga banyak ditemukan lalat di sekitar tempat tinggal mereka. Kelompok lalat yang sering kita temui di lingkungan yaitu lalat rumah, lalat hijau dan lalat daging. Lalat dapat menularkan berbagai macam penyakit terutama penyakit yang disebabkan oleh jamur. Tujuan penelitan ini adalah untuk mengidentifikasi jamur pada lalat di Yayasan Tunas Mulia Bantar Gebang. Metode: Metode penelitian ini secara Cross Sectional yaitu mencuplikan seekor sampel lalat dalam satu waktu. Objek penelitian adalah Lalat yang ditangkap di Yayasan Tunas Mulia Bantar Gebang. Hasil: Hasil yang diperoleh dari penelitian ini adalah didapatkan dua jenis spesies lalat yaitu Musca domestica dan Chrysomya megachepala. Jamur yang di dapatkan pada permukaan tubuh lalat Musca domestica yaitu Aspergillus niger, Aspergillus flavus, Fusarium oxysporum, dan pada permukaan tubuh lalat Chrysomya megachepala yaitu Aspergillus fumigatus dan Aspergillus flavus Kesimpulan: Perlu dilakukan penelitian lanjutan untuk mengetahui penyakit yang disebabkan oleh jamur dari penyebaran lalat dilingkungan masyarakat.

Automated Image Analysis Of Nuclear And Cytoplasmic Changes In Exfoliated Cells From Tracheas Treated With Carcinogen

1977 ◽  
Vol 35 ◽  
pp. 220-221
Author(s):  
S.F. Stinson ◽  
J.C. Lilga ◽  
M.B. Sporn
Keyword(s):  
Image Analysis ◽  
Pattern Analysis ◽  
Relative Proportion ◽  
Automated Image Analysis ◽  
Image Analyzer ◽  
Cross Sectional ◽  
Exfoliated Cells ◽  
Neoplastic Lesions ◽  
Analysis System ◽  
Morphologic Criterion

Increased nuclear size, resulting in an increase in the relative proportion of nuclear to cytoplasmic sizes, is an important morphologic criterion for the evaluation of neoplastic and pre-neoplastic cells. This paper describes investigations into the suitability of automated image analysis for quantitating changes in nuclear and cytoplasmic cross-sectional areas in exfoliated cells from tracheas treated with carcinogen.Neoplastic and pre-neoplastic lesions were induced in the tracheas of Syrian hamsters with the carcinogen N-methyl-N-nitrosourea. Cytology samples were collected intra-tracheally with a specially designed catheter (1) and stained by a modified Papanicolaou technique. Three cytology specimens were selected from animals with normal tracheas, 3 from animals with dysplastic changes, and 3 from animals with epidermoid carcinoma. One hundred randomly selected cells on each slide were analyzed with a Bausch and Lomb Pattern Analysis System automated image analyzer.

X-Ray Replication of Submicrometer Linewidth Patterns

1977 ◽  
Vol 35 ◽  
pp. 136-137
Author(s):  
Henry I. Smith ◽  
D.C. Flanders
Keyword(s):  
Electron Beam Lithography ◽  
Cross Sectional ◽  
X Ray ◽  
Electron Backscattering ◽  
Spatial Frequencies ◽  
Cross Sectional Profile ◽  
Carbon Foils ◽  
Sectional Profile ◽  
And Control ◽  
Soft Radiation

Scanning electron beam lithography has been used for a number of years to write submicrometer linewidth patterns in radiation sensitive films (resist films) on substrates. On semi-infinite substrates, electron backscattering severely limits the exposure latitude and control of cross-sectional profile for patterns having fundamental spatial frequencies below about 4000 Å(l),Recently, STEM'S have been used to write patterns with linewidths below 100 Å. To avoid the detrimental effects of electron backscattering however, the substrates had to be carbon foils about 100 Å thick (2,3). X-ray lithography using the very soft radiation in the range 10 - 50 Å avoids the problem of backscattering and thus permits one to replicate on semi-infinite substrates patterns with linewidths of the order of 1000 Å and less, and in addition provides means for controlling cross-sectional profiles. X-radiation in the range 4-10 Å on the other hand is appropriate for replicating patterns in the linewidth range above about 3000 Å, and thus is most appropriate for microelectronic applications (4 - 6).

A Field Emission System For Transmission Electron Microscopy

1973 ◽  
Vol 31 ◽  
pp. 298-299
Author(s):  
Michel Troyonal ◽  
Huei Pei Kuoal ◽  
Benjamin M. Siegelal
Keyword(s):  
Electron Microscope ◽  
Field Emission ◽  
Optical System ◽  
High Vacuum ◽  
Ultra High Vacuum ◽  
Objective Lens ◽  
Electron Optical System ◽  
Cross Sectional ◽  
Transmission Electron ◽  
Emission System

A field emission system for our experimental ultra high vacuum electron microscope has been designed, constructed and tested. The electron optical system is based on the prototype whose performance has already been reported. A cross-sectional schematic illustrating the field emission source, preaccelerator lens and accelerator is given in Fig. 1. This field emission system is designed to be used with an electron microscope operated at 100-150kV in the conventional transmission mode. The electron optical system used to control the imaging of the field emission beam on the specimen consists of a weak condenser lens and the pre-field of a strong objective lens. The pre-accelerator lens is an einzel lens and is operated together with the accelerator in the constant angular magnification mode (CAM).

Microstructural characterization of CoPtCr/Cr thin film disks by cross-section TEM and elongated probe micro-diffraction

1991 ◽  
Vol 49 ◽  
pp. 762-763
Author(s):  
M.A. Parker ◽  
K.E. Johnson ◽  
C. Hwang ◽  
A. Bermea
Keyword(s):  
Magnetic Recording ◽  
Electron Probe ◽  
Microstructural Characterization ◽  
Crystallographic Structure ◽  
Recording Media ◽  
Layer By Layer ◽  
Cross Sectional ◽  
New Techniques ◽  
Polished Side

We have reported the dependence of the magnetic and recording properties of CoPtCr recording media on the thickness of the Cr underlayer. It was inferred from XRD data that grain-to-grain epitaxy of the Cr with the CoPtCr was responsible for the interaction observed between these layers. However, no cross-sectional TEM (XTEM) work was performed to confirm this inference. In this paper, we report the application of new techniques for preparing XTEM specimens from actual magnetic recording disks, and for layer-by-layer micro-diffraction with an electron probe elongated parallel to the surface of the deposited structure which elucidate the effect of the crystallographic structure of the Cr on that of the CoPtCr.XTEM specimens were prepared from magnetic recording disks by modifying a technique used to prepare semiconductor specimens. After 3mm disks were prepared per the standard XTEM procedure, these disks were then lapped using a tripod polishing device. A grid with a single 1mmx2mm hole was then glued with M-bond 610 to the polished side of the disk.

Computer Reconstruction of the Cellular Architecture of the Daphnia Magna Optic Ganglion

1975 ◽  
Vol 33 ◽  
pp. 284-285
Author(s):  
E. R. Macagno ◽  
C. Levinthal
Keyword(s):  
Daphnia Magna ◽  
Genetic Background ◽  
Compound Eye ◽  
Synaptic Connectivity ◽  
Serial Sections ◽  
Cross Sectional ◽  
Small Crustacean ◽  
Optic Ganglion ◽  
Structural Invariance ◽  
High Degree

The optic ganglion of Daphnia Magna, a small crustacean that reproduces parthenogenetically contains about three hundred neurons: 110 neurons in the Lamina or anterior region and about 190 neurons in the Medulla or posterior region. The ganglion lies in the midplane of the organism and shows a high degree of left-right symmetry in its structures. The Lamina neurons form the first projection of the visual output from 176 retinula cells in the compound eye. In order to answer questions about structural invariance under constant genetic background, we have begun to reconstruct in detail the morphology and synaptic connectivity of various neurons in this ganglion from electron micrographs of serial sections (1). The ganglion is sectioned in a dorso-ventra1 direction so as to minimize the cross-sectional area photographed in each section. This area is about 60 μm x 120 μm, and hence most of the ganglion fit in a single 70 mm micrograph at the lowest magnification (685x) available on our Zeiss EM9-S.

Mass Determination by Direct Measurement of Electron Scattering

1975 ◽  
Vol 33 ◽  
pp. 240-241
Author(s):  
M. K. Lamvik ◽  
A. V. Crewe
Keyword(s):  
Cross Section ◽  
Electron Scattering ◽  
Mass Density ◽  
Variable Mass ◽  
Scattering Cross Section ◽  
Mass Determination ◽  
Number Density ◽  
Cross Sectional ◽  
Thin Slice ◽  
Scattering Cross

If a molecule or atom of material has molecular weight A, the number density of such units is given by n=Nρ/A, where N is Avogadro's number and ρ is the mass density of the material. The amount of scattering from each unit can be written by assigning an imaginary cross-sectional area σ to each unit. If the current I0 is incident on a thin slice of material of thickness z and the current I remains unscattered, then the scattering cross-section σ is defined by I=IOnσz. For a specimen that is not thin, the definition must be applied to each imaginary thin slice and the result I/I0 =exp(-nσz) is obtained by integrating over the whole thickness. It is useful to separate the variable mass-thickness w=ρz from the other factors to yield I/I0 =exp(-sw), where s=Nσ/A is the scattering cross-section per unit mass.

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