The Ultrastructure of the Corpus Luteum of the Goat

The ultra structure of luteal cells and the proportion of the different cell types in the functional corpus luteum of the goat were studied using the electron microscope. Two luteal cell types, large and small, were present in the corpus luteum of this species. The large more rounded luteal cell possessed numerous mitochondria and electron dense membrane- bound granules, extensive agranular endoplasmic reticulum and granular endoplasmic reticulum which at times appeared as stacks of closely packed cisternae. Few lipid droplets were present iri the luteal cell cytoplasma while whorled agranular endoplasmic reticulum was absent. Interspersed amongst the large luteal cells were smaller luteal cells with tapering cytoplasmic processes. These cells differed from the large luteal cells in that they possessed fewer mitochondria and electron dense membrane- bound granules. Occasional nuclei of the small luteal cells contained cytoplasmic inclusion bodies

The Radiographic Anatomy of the Gastrointestinal Tract of the Lesser Mousedeer (Tragulus javanicus)

The radiographic anatomy of the Lesser Mousedeer (Tragulus javanicus) is described. The mousedeer has an extremely large stomach complex which fills the left and the ventral right of the abdomen. No omasum or caudodorsal blind sac were found. The reticulum usually lay cranioventrally on the left side abutting the diaphragm. The abomasal fundus lay caudal and ventral to the reticulum. The rate of passage of radiopaque substances along the alimentary tract is given. Faeces was first noted to form in the spiral colon. Small particles and fluid passed rapidly through the alimentary tract Ix =44.5 hr). Particles with densities approaching that of straw remained in the rumen whilst heavy metals were retained in the reticulum

Topographic Anatomy of the Abdomen of the Lesser Mousedeer (Tragulus javanicus)

A description is given of the gross anatomy supplemented by radiographic studies of the abdominal structures of (T. javanicus). The large sacculated stomach complex is the dominant feature of the abdomen, it occupies most of the left side and extends across to fill the ventral right side. The intestine is primarily relegated to the dorsal caudal quadrant immediately cranial to the cranial pelvic aperture. The multilobed liver lies entirely on the right. The kidneys are not lobed, with the cranial pole of the right kidney abutting the caudate lobe of the liver and the left kidney lying adjacent but immediately caudal to its fellow. The small triangular spleen lies on the dorsal cranial aspect of the dorsal sac of the rumen

Deteksi Antibodi terhadap Mycoplasma gallisepticum pada Serum Ayam dengan Pengujian Serologi Rapid Serum Agglutination (RSA), Kit ELISA Komersil dan inhouseELISA

Mycoplasma gallisepticum (MG) adalah bakteri penyebab penyakit pernapasan kronis pada ayam yang sering disebut sebagai chronic respiratory disease (CRD) dan infectious sinusitis pada kalkun. Kerugian akibat infeksi MG pada industri perunggasan di dunia mencapai lebih dari US $ 780 juta setiap tahun. Deteksi dini dan monitoring secara berkelanjutan sangat dibutuhkan dari hulu yakni hatchery sampai ke hilir di peternakan komersil. Di Indonesia kasus CRD maupun CRD kompleks sampai saat ini masih menjadi permasalahan di peternakan-peternakan ayam. Keberadaan MG dapat dideteksi dengan cara isolasi organisme atau deteksi DNA dari jaringan yang terinfeksi atau sampel swab atau dengan menggunakan pengujian serologi untuk diagnosis penyakit ini. Jenis pengujian serologi yang sudah umum dilakukan adalah dengan Rapid Serum Agglutination (RSA), Enzyme-Linked Immunosorbent Assay (ELISA) dan Haemagglutination Inhibition (HI). Penelitian ini bertujuan untuk mengetahui status antibodi ayam dari beragam kondisi di lapangan dengan uji RSA, ELISA komersil dan inhouseELISA (iELISA). Pengujian serologi dengan menggunakan 3 jenis pengujian memberikan hasil yang berbeda dalam mendeteksi antibodi terhadap MG pada sampel serum ayam dengan status yang bervariasi. Kit ELISA komersil lebih sensitif dalam mendeteksi antibodi terhadap MG, sehingga pengujian ini memberikan hasil positif paling banyak

Characterization of erbium doped photonic crystal fiber

Photonic crystal fibers (PCFs) are a new emerging research area, and have been undergoing rapid development in recent years due to their unique and excellent optical properties and features. Studies on the characteristics of various types of PCFs have been reported. However, characterization on erbium-doped PCF has not previously been investigated. Therefore, in this paper, we have modeled an erbium-doped core PCF which has 7 rings of hexagonal air holes. The PCF structure, with a perfectly matched layer (PML), is modeled and simulated using Finite Element Method (FEM) via COMSOL software. The PML is optimized by varying the radius and thickness of the layer. Modal properties of the PCF have been investigated in terms of its effective index of the supported fundamental mode, confinement loss and thickness of the perfectly matched layer. This erbium-doped PCF has a confinement loss of 1.0E-6 at 1500 nm and a maximum effective refractive index of 1.476. This paper gathers useful data, which could be used for studying the characteristics of a PCF

Sentence Scramble Game: Media Pembelajaran Sintaksis Pada Anak Tunarungu Tingkat Sekolah Dasar

This research aims to produce the software of Sentence Scramble Game (SSG)as a syntax learning media for deaf children. Learning syntax includes the discussionabout sentence structures and functional orders. The method employed in this studyis research and development (R & D) adopting the model development of Borg & Gall,which covers ten steps simplified into six steps, namely: 1) analysis, 2) design, 3)development, 4) expert validation, 5) testing, and 6) disseminations. The subjects inthis research were 7 students of Karnamanohara Type B Special School. The methodsof data collection are direct observation, interview and questionnaires. The data wereanalyzed by descriptively and qualitatively. The results of this research show thatSentence Scramble Games (SSG) are eligible, proven by the results of the materialvalidation test with good category (4.0) and the media expert's trial results with verygood category (4.2). The assessment of the feasibility of the media is also supportedby the trial results of three persons with excellent categories (4.1). A large scale trialby seven people results in the excellent category (4.6)

Window-based channel impulse response prediction for time-varying ultra-wideband channels

This work proposes channel impulse response (CIR) prediction for time-varying ultra-wideband (UWB) channels by exploiting the fast movement of channel taps within delay bins. Considering the sparsity of UWB channels, we introduce a window-based CIR (WB-CIR) to approximate the high temporal resolutions of UWB channels. A recursive least square (RLS) algorithm is adopted to predict the time evolution of the WB-CIR. For predicting the future WB-CIR tap of window wk, three RLS filter coefficients are computed from the observed WB-CIRs of the left wk-1, the current wk and the right wk+1 windows. The filter coefficient with the lowest RLS error is used to predict the future WB-CIR tap. To evaluate our proposed prediction method, UWB CIRs are collected through measurement campaigns in outdoor environments considering line-of-sight (LOS) and non-line-of-sight (NLOS) scenarios. Under similar computational complexity, our proposed method provides an improvement in prediction errors of approximately 80% for LOS and 63% for NLOS scenarios compared with a conventional method

Real measurement study for rain rate and rain attenuation conducted over 26 GHz microwave 5G link system in Malaysia

In this paper, real measurements were conducted to investigate the impact of rain on the propagation of millimeter waves at 26 GHz. The measurements were accomplished using a microwave fifth generation radio link system with 1.3 km path length implemented at Universiti Teknologi Malaysia Johor Bahru, Malaysia. The implemented system consisted of Ericsson CN500 mini E-link, radio unit, rain gauge, and data logger. The measurements were attained and logged daily for a continuous year, with 1-min time intervals. Next, the MATLAB software was used to process and analyze the annual rain rate and rain attenuation, including for the worst month. From the analyzed results, it was found that at 0.01% percentage of time, the rain rate was 120 mm/hr; while the specific rain attenuation was 26.2 dB/km and the total rain attenuation over 1.3 km was 34 dB. In addition, the statistics acquired from the measurements for the worst month were lower than what was predicted by the international telecommunication union (ITU) model; around 51% and 34% for the rain rate and rain attenuation, respectively. The average percentage of error calculated between the measurements and predicted results for the rain rate and rain attenuation were 143% and 159%, respectively. Thus, it can be concluded that the statistics for the worst month in Malaysia is lower than what was predicted by the ITU model