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Showing 1 to 20 of 39 for “"MGA"”.
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Sex and ancestry estimation methods in modern Filipino crania (Mga paraang pagsusuri ng kasarian at lahi mula sa bungo ng mga kasalukuyang Pilipino)
Diversity has been a central focus within anthropology since its disciplinary origins. In forensic anthropology this has come to include understanding the wide range of physical variation present in the human species across the spectra of geographies, generations, life stages, sexes, and different …
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Transcriptional Regulation of the MGA Virulence Regulon in Streptococcus Pyogenes
… GAS possesses a transcriptional regulator called Mga, or the multiple gene regulator of the GAS, that responds to growth phase and environmental signals to activate virulence genes necessary for colonization, internalization, and immune evasion of the bacterium. In previous studies, Mga-binding …
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The Role of Mga in the Survival of Pluripotent Cells During Peri-implantation Development
The dual specificity transcription factor Mga contains both a T-box binding domain and a basic helix-loop-helix zipper (bHLHZip) domain. Loss of Mga leads to embryonic lethality by E5.5. In vitro blastocyst culture and embryonic stem (ES) cell culture identify a lack of pluripotent inner cell mass …
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Global Optimization of MGA-DSM Problems Using the Interplanetary Gravity Assist Trajectory Optimizer (IGATO)
<p>Interplanetary multiple gravity assist (MGA) trajectory optimization has long been a field of interest to space scientists and engineers. Gravity assist maneuvers alter a spacecraft's velocity vector and potentially allow spacecraft to achieve changes in velocity which would otherwise be …
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Follicular dynamics, estradiol-17[beta] concentrations, and luteinizing hormone release following norgestomet implant insertion during estrus synchronization with melengestrol acetate
… insertion following melengestrol acetate (MGA) administration altered LH pulse frequency and follicular dynamics. Multiparous Angus cows were randomly assigned to receive MGA (.5 mg*cow⁻¹*d⁻¹ ; MGA; n = 14) for 18 d or to receive MGA (.5 mg*cow·⁻¹ l*d⁻¹; MGA-N; n = 11) for 15 d and a …
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Differential effect of melengestrol acetate or progesterone-releasing intravaginal devices on follicular development, progesterone and estradiol-17β concentrations and patterns of luteinizing hormone release during the bovine estrous cycle
Two studies were conducted to determine if 7-d MGA or PRID treatment initiated on d 17 of the estrous cycle altered: 1) follicular development, 2) estradiol-17β (E2) and progesterone (P4) concentrations, and 3) patterns of release of luteinizing hormone (LH). In both studies, Angus, Angus x …
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Melengestrol acetate and norgestomet for the induction of synchronized estrus in seasonally anovular ewes
… products for cattle, melengestrol acetate (MGA) and norgestomet (SMB) , were evaluated for their ability to induce synchronized estrus in anovulatory ewes. Seasonally anestrous ewes (n=232; determined by blood serum progesterone concentration) of mixed breeding were randomly assigned within …
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Functional Domains in the Multigene Regulator of the Group A Streptococcus
… The multigene regulator of the GAS, or Mga, has been shown to bind DNA and activate transcription of virulence genes implicated in colonization and immune evasion in response to environmental conditions. Several different avenues of investigation were undertaken in the present study with …
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Effect of Timing of Insemination and Synchronization of Estrus Method on Artificial Insemination (AI) Pregnancy Rates in Beef Heifers
… and synchronization with melengestrol acetate (MGA) plus prostaglandin (PG) or progesterone insert (CIDR) plus PG on AI pregnancy rate in beef heifers (n = 662) during Fall or Spring. Fall heifers (n = 349) received MGA-PG (MGA for 14 d followed by PG on d 18) or CIDR-PG (CIDR for 7 d, PG …
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Methods for Generating Alternative Solutions to Environmental Planning Problems
… Modeling to generate alternatives (MGA) is designed to serve this purpose. Several MGA methods, a random method, a generating and screening (G&S) method and a Fuzzy HSJ method, are developed in this dissertation. This work also provides an assessment of the potential use of these MGA …
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CcpA-Mediated Carbon Catabolite Repression of Virulence in the Group A Streptoccus
… the promoter for the virulence gene regulator, Mga. CcpA was shown to specifically bind to this cre, and activate the transcription of mga. In addition, both transcription of mga and expression of Mga were reduced in a ccpA mutant strain; however, the expression of the Mga-regulated genes were …
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Synchronization of estrus, conception rate, and embryonic mortality in beef cattle following treatment with progesterone-releasing intravaginal devices or melengestrol acetate in conjunction with PGF₂α
… to receive either melengestrol acetate for 7 d (MGA-PGF; .5 mg/hd/d, n=136) or progesterone releasing intravaginal device for 7 d (PRID-PGF; n=139) or to serve as untreated controls (n=116). All animals in MGA and PRID treated groups coincidentally received 25 mg prostaglandin F₂α (PGF) on the …
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Automated trajectory planning for multiple-flyby interplanetary missions
… of each flyby. These Multiple Gravity Assist (MGA) trajectories are optimized using a cooperative algorithm of Differential Evolution (DE) and Particle Swarm Optimization (PSO). The second class of trajectories, known as Multiple Gravity Assist with one Deep Space Maneuver (MGA-DSM), also use …
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A ROLE FOR ANGIOTENSIN-(1-7) TO ATTENUATE ADVANCED GLYCATION END PRODUCT -INDUCED MYOFIBROBLAST TRANSITION IN THE NRK-52E RENAL PROXIMAL TUBULE CELL LINE
… (AGEs) including methylglyoxal-modified albumin (MGA) may contribute to the development and progression of diabetic nephropathy via activation of the receptors for AGE (RAGE) and the RAS. The RAS is functionally partitioned into the angiotensin II (Ang II)-angiotensin type 1 receptor (AT1R) and …
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A Novel Automatic History Matching Method and Upscaling Study of Cyclic Solvent Injection Process for Post-Chops Heavy Oil Reservoirs
… algorithm (GA) based history matching method (MGA) was validated by history matching three tests. This MGA method was developed by integrating a population database and orthogonal array with the GA to improve the efficiency and effectiveness of the algorithm. Because of the existence of a …
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Chip-scale quadrupole mass filters for a Micro-Gas Analyzer
… better, and cheaper. The Micro-Gas Analyzer (MGA) project attempts to leverage MEMS capabilities to create a low-cost, high-performance, portable mass spectrometer. Batch-fabrication of various components for the MGA has been demonstrated to date, but the mass filter component still has room …
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Development of Novel Attention-Aware Deep Learning Models and Their Applications in Computer Vision and Dynamical System Calibration
… In essay 2, we present a mask-guided attention (MGA) classifier for COVID-19 classification on lung CT scan images. The MGA classifier incorporates lesion masks to improve both the accuracy and interpretability of the model, outperforming state-of-the-art models with limited training data. …
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The chronology of Waikato pā: A spatio-temporal investigation of pā in the middle Waikato basin
… (MA1), Lake Mangakaware 2 (MA2), Lake Mangahia (MGA), Taraheke Pā (TAR), Te Uapata Pā (TEU) and Lake Rotokauri (ROT). The local scale analysis utilised these felling dates to track the development of the identified palisade defences over time, identifying multiple palisade construction phases, …
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Applying genetic algorithms to multi-objective land-use planning.
… two multi-objective genetic algorithms (mGAs) were implemented based on the proposed representations. The goal of these mGAs was to search for a set of solutions defining the structure of the relationship between two or more objectives. To achieve this goal, modifications are required to …
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Progestin regulation of follicular dynamics in beef cattle
Progestins, such as melengestrol acetate (MGA) and Controlled Internal Drug Release (CIDR), can inhibit ovulation and synchronize estrus in cattle. However, long-term MGA treatment, in the absence of a corpus luteum, results in the formation of a persistent follicle (PF). Fertilization of a oocyte …
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