Miracle-dz/UniFAR-FTUs huggingface dataset:
Circularly Polarized Microstrip Antenna

Entitled: " Circularly Polarized Microstrip Antenna " and submitted in partial fulfillment of the requirements for the degree of Master of Applied Science Complies with the regulations of this University and meets the accepted standards with respect to originality and quality. Abstract Circularly Polarized Microstrip Antenna Marwa Shakeeb Matching the polarization in both the transmitter and receiver antennas is important in terms of decreasing transmission losses. The use of circularly polarized antennas presents an attractive solution to achieve this polarization match which allows for more flexibility in the angle between transmitting and receiving antennas, reduces the effect of multipath reflections, enhances weather penetration and allows for the mobility of both the transmitter and the receiver. The objective of this thesis is to design a single fed circularly polarized microstrip antenna that operates at 2.4 GHz. Single feeding is used because it is simple, easy to manufacture, low in cost and compact in structure. This thesis presents a new design for a circularly polarized antenna based on a circular microstrip patch. Circular polarization is generated by truncating two opposite edges from a circular patch antenna at 45° to the feed. The truncation splits the field into two orthogonal modes with equal magnitude and 90° phase shift. The perturbation dimensions are then optimized to achieve the low axial ratio required to achieve circular polarization at the desired frequency. This thesis presents three design variations. The first design is fed by microstrip line feed, the second is fed by proximity feeding and the third is fed by aperture feeding. The design of the microstrip fed antenna requires parametric studies on the antenna diameter and the distance between the patch center and the truncation. It also required designing a quarter iv wavelength transformer between the 50 feed line and the patch. The design of the proximity fed antenna requires one additional parametric study on the length of the feed line while the aperture fed antenna requires two additional parametric studies on the length of the feed line and the diameter of the ground slot. Results show that microstrip fed antenna design in this thesis can yield 8.11 dB directive gain, axial ratio and impedance bandwidth 0.83 % and 2.92 % respectively. The proximity fed antenna in this thesis can yield 8 dB directive gain, axial ratio and impedance bandwidth 1.45 % and 5.36 % respectively. The aperture fed antenna in this thesis can yield …
Matroid-Constrained Maximum Vertex Cover: Approximate Kernels and Streaming Algorithms

Given a graph with weights on the edges and a matroid imposed on the vertices, our problem is to choose a subset of vertices that is independent in the matroid, with the objective of maximizing the total weight of covered edges. This problem is a generalization of the much studied max k -vertex cover problem, where the matroid is the simple uniform matroid, and it is also a special case of maximizing a monotone submodular function under a matroid constraint. In this work, we give a Fixed Parameter Tractable Approximation Scheme (FPT-AS) when the given matroid is a partition matroid, a laminar matroid, or a transversal matroid. Precisely, if k is the rank of the matroid, we obtain (1 − ε ) approximation using (cid:0) 1 ε (cid:1) O ( k ) n O (1) time for partition and laminar matroids and using (cid:0) 1 ε + k (cid:1) O ( k ) n O (1) time for transversal matroids. This extends a result of Manurangsi for uniform matroids [26]. We also show that these ideas can be applied in the context of (single-pass) streaming algorithms. Our FPT-AS introduces a new technique based on matroid union, which may be of independent interest in extremal combinatorics. O (( 2 η · kε ) η ) variables. This shows that for the special matroids that we studied of rank k , a weighted coverage function with bounded frequency η can be (1 − ε ) approximated in streaming. This extends a result of [29] to matroids.
FAtNet: Cost-Effective Approach Towards Mitigating the Linguistic Bias in Speaker Verification Systems

Linguistic bias in Deep Neural Network (DNN) based Natural Language Processing (NLP) systems is a critical problem that needs attention. The problem further intensifies in the case of security systems, such as speaker verification, where fairness is essential. Speaker verification systems are intelligent systems that determine if two speech recordings belong to the same speaker. Such human-oriented security systems should be usable by diverse people speaking varied languages. Thus, a speaker verification system trained on speech in one language should generalize when tested for other languages. However, DNN-based models are often language-dependent. Previous works explore domain adaptation to fine-tune the pre-trained model for out-of-domain languages. Fine-tuning the model individually for each existing language is expensive. Hence, it limits the usability of the system. This paper proposes the cost-effective idea of integrating a lightweight embedding with existing speaker verification systems to mitigate linguistic bias without adaptation. This work is motivated by the theoretical hypothesis that attentive-frames could help generate language-agnostic embeddings. For scientific validation of this hypothesis, we propose two frame-attentive networks and investigate the effect of their integration with baselines for twelve languages. Empirical results suggest that frame-attentive embedding can cost-effectively reduce linguistic bias and enhance the usability of baselines. dev set for most of the test sets. It indicates that increasing the size of the training set can help in improving the performance of speaker verification models.
Enhancing Detail Preservation for Customized Text-to-Image Generation: A Regularization-Free Approach

Recent text-to-image generation models have demonstrated impressive capability of generating text-aligned images with high fidelity. However, generating images of novel concept provided by the user input image is still a challenging task. To address this problem, researchers have been exploring various methods for customizing pre-trained text-to-image generation models. Currently, most existing methods for customizing pre-trained text-to-image generation models involve the use of regularization techniques to prevent over-fitting. While regularization will ease the challenge of customization and leads to successful content creation with respect to text guidance, it may restrict the model capability, resulting in the loss of detailed information and inferior performance. In this work, we propose a novel framework for customized text-to-image generation without the use of regularization. Specifically, our proposed framework consists of an encoder network and a novel sampling method which can tackle the over-fitting problem without the use of regularization. With the proposed framework, we are able to customize a large-scale text-to-image generation model within half a minute on single GPU, with only one image provided by the user. We demonstrate in experiments that our proposed framework outperforms existing methods, and preserves more fine-grained details.
A hybrid PML formulation for the 2D three-field dynamic poroelastic equations

Simulation of wave propagation in poroelastic half-spaces presents a common challenge in fields like geomechanics and biomechanics, requiring Absorbing Boundary Conditions (ABCs) at the semi-infinite space boundaries. Perfectly Matched Layers (PML) are a popular choice due to their excellent wave absorption properties. However, PML implementation can lead to problems with unknown stresses or strains, time convolutions, or PDE systems with Auxiliary Differential Equations (ADEs), which increases computational complexity and resource consumption. This article presents two new PML formulations for arbitrary poroelastic domains. The first formulation is a fully-mixed form that employs time-history variables instead of ADEs, reducing the number of unknowns and mathematical operations. The second formulation is a hybrid form that restricts the fully-mixed formulation to the PML domain, resulting in smaller matrices for the solver while preserving governing equations in the interior domain. The fully-mixed formulation introduces three scalar variables over the whole domain, whereas the hybrid form confines them to the PML domain. The proposed formulations were tested in three numerical experiments in geophysics using realistic parameters for soft sites with free surfaces. The results were compared with numerical solutions from extended domains and simpler ABCs, such as paraxial approximation, demonstrating the accuracy, efficiency, and precision of the proposed methods. The article also discusses the applicability of these methods to complex media and their extension to the Multiaxial PML formulation. The codes for the simulations are available for download from \url{https://github.com/hmella/POROUS-HYBRID-PML}.
Active tectonics of Tibet

From an interpretation of Landsat imagery of Tibet the most recent structures appear to be normal faults that trend approximately north-south. Fault plane solutions of 14 earthquakes in the central part of the Tibetan plateau indicate large components of normal faulting. The solutions are not well constrained, but for the most reliable ones the T axes are oriented approximately east-west. Only on the margins of the high plateau, where elevations are lower, do fault plane solutions show active thrust faulting. These observations imply an east-west extension of most of Tibet at the present time. We relate this pattern to the collision of India and Eurasia and to deformation of an especially weak Tibetan crust and upper mantle. India applies a pressure to Eurasia that maintains Tibet at a high uniform altitude, and the hydrostatic head caused by this elevation transmits the pressure northward. Accordingly, Tibet is the pressure gauge of Asia. At the same time a small east-west strain (or flow) of the lower crust and upper mantle of Tibet would stretch the surface layer. Tibet's position relative to India at the present time is analogous to that of a ‘dead’ triangle in a plastic material indented by a rigid indenter (India).
Snow, snowmelt, rain, runoff and chemistry in a Sierra Nevada watershed

• • • • 3 Snow Accumulation and Distribution 3 Water Balance • • • • • • • • • • • • • • • • • • 3 Basin Discharge . 3 Climate and Energy Exchange at the Snow Surface • • • . • • • • • 4 Topographic Distribution of Solar Radiation. • • • • • • • 4 Chemistry of Wet Deposition and Snowmelt Runoff • • • • • • • 4 I. SUMMARY AND CONCLUSIONS 6 A. Snow Accumulation and Distribution 6 B. Water Balance • • • • • • • 7 C. Basin Discharge • • • • • • • • • • • . • • • 8 D. Topographic Distribution of Solar Radiation • • • • • • • • 9 E. Chemistry of Wet Deposition and Snowmelt Runoff • • • • • • • • 10 1. Solute Flux from Wet Deposition 10 2. Storage and Release of Ions in the Snowpack 10 3. Solute Concentrations in Streamwater During Snowmelt Runoff 11 4. Rain-on-Snow Event 12 II. RECOMMENDATIONS • 13 A. Monitoring 13 B. Research 13 C. Policy Recommendations • 14 III. SNOW ACCUMULATION AND DISTRIBUTION 16 A. Introduction • • • • • • • • • 16 B. Factors Affecting Snow Distribution 17 1. Accumulation 17 2. Ablation 19 C. Field Methods • • • • • • 21 1. Snowfall 21 2. Snow Water Equivalence 21 3. Ablation 24 4. Snow Covered Area 25 D. Modeling Methods • 25 E. Results and Discussion 26 1. Accumulation 26 2. Redistribution 28 3. Snow Density from Field Measurements 29
Patient Safety Culture and Factors that Impact That Culture in Tehran Hospitals in 2013

Background: Sufficient evidence is lacking about patient safety culture in Iran. It is only by focusing on the culture of safety within healthcare and treatment institutes that improvements may be made in patient care services. Objectives: The present study aimed to examine patient safety culture and factors that affect that culture in two hospitals in Tehran city. Patients and Methods: A cross-sectional study was conducted in two government teaching hospitals (135- and 650-bed hospitals) in Tehran city in February of 2013 using a proportional stratified sampling method. The participants completed questionnaires with questions concerning their demographics and patient safety culture. Results: Overall, the study participants rated patient safety culture within their healthcare institutions at 64.7%. The highest and lowest patient safety culture subscales were 73.8% and 50.1% for “teamwork within units” and “staffing,” respectively. According to the findings, hospital size (P < 0.001) and hospital area (P < 0.001) had a significant relationship with patient safety culture. Conclusions: Given that “Staffing” was the lowest rated element in patient safety culture, improving this element could help to increase patient safety culture in hospitals in Tehran.
Biosynthesis Characteristic of Silver Nanoparticles Produced by Mine Soil Bacteria Isolation, Kerman, Iran

Background: Biosynthesis of is one of the safe methods in nanoparticles (NP) production where local bacteria of every region can be applied for its better functionality. Among these nanoparticles, the silver nanoparticles (SNP) with high applicability due to their antimicrobial characteristic are the most common. Methods: In the study, the soil samples are collected from metal mines of Kerman province and their bacteria content is screened and purified. Then, the SNP biosynthesis test is run on Biomass and bacterial supernatant. The parameters here consist of two Molarity of silver nitrate (10-2 and 10-3), different temperature effect on biosynthesis of SNP, and light/dark conditions which are assessed here to optimize SNP production rate, and the results are confirmed. Results: From the bacterial isolations, the Pseudomonas Iranica NCBI: KF742672, was able to produce SNP from silver nitrate salt of 20-80 nm at 30°C, In dark condition and 10-2 Molarity. Conclusions: Bacteria can be consumed as a safe and clean element to produce NP, which is in wide use due to new characterizations that are revealed through studies, of course with the safety factor is of major concern.
Essential Spreadsheet Modeling Course for Business Students

Ask any student at the Singapore Management University (SMU) to name one of the most practical and useful courses offered by the university. The answer would inevitably include CAT. CAT stands for the "Computer as an Analysis Tool" course. Originally based on a course of the same title offered by the Wharton Business School, the focus of CAT was shifted to provide business students the essential practical skills and necessary "real-world" exposure to better use personal computers for resolving business problems. The course is basically centered on using the Excel spreadsheet to work on ambiguous ill-defined problems.
Carousel Ads Optimization in Yahoo Gemini Native

Yahoo's native advertising (also known as Gemini native) serves billions of ad impressions daily, reaching a yearly run-rate of many hundred of millions USD. Driving Gemini native models for predicting both click probability (pCTR) and conversion probability (pCONV) is OFFSET - a feature enhanced collaborative-filtering (CF) based event prediction algorithm. The predicted pCTRs are then used in Gemini native auctions to determine which ads to present for each serving event. A fast growing segment of Gemini native is Carousel ads that include several cards (or assets) which are used to populate several slots within the ad. Since Carousel ad slots are not symmetrical and some are more conspicuous than others, it is beneficial to render assets to slots in a way that maximizes revenue. In this work we present a post-auction successive elimination based approach for ranking assets according to their click trough rate (CTR) and render the carousel accordingly, placing higher CTR assets in more conspicuous slots. After a successful online bucket showing 8.6% CTR and 4.3% CPM (or revenue) lifts over a control bucket that uses predefined advertisers assets-to-slots mapping, the carousel asset optimization (CAO) system was pushed to production and is serving all Gemini native traffic since. A few months after CAO deployment, we have already measured an almost 40% increase in carousel ads revenue. Moreover, the entire revenue growth is related to CAO traffic increase due to additional advertiser demand, which demonstrates a high advertisers' satisfaction of the product.
The relationship between knowledge management and organisational performance , mediating role of innovation : the case of public universities in Vietnam

4 ABSTRAKT . 5 LIST OF FIGURES . 8 LIST OF TABLES . 8 LIST OF ABBREVIATIONS . 9 1. INRODUCTION . 10 1.1 Research background . 10 1.2 Research gap . 11 1.3 Research problem . 12 1.4 Research questions . 13 1.5 Research objectives . 13 1.6 Overview of higher education and public universities in Vietnam 14 1.7 Thesis overview . 14 2. LITERATURE REVIEW and Theoretical frameworks. 14 2.2 Theoretical frameworks . 15 2.2. 1 The Knowledge-Based View (KBV) . 15 2.2.2 Social Capital Theory (SCT) . 15 1. CONCEPTUAL FRAMEWORK and HYPOTHESIS GENERATION . 16 4.1 Conceptual framework . 16 4.2 Hypothesis development . 17 5. METHODOLOGY . 20 5.1 Research design . 20 5.2. Research instrumentation . 21 5.2. 1 Measures . 21 5.3 Survey instrument . 21 5.3. 1 Knowledge acquisition . 22 5.3. 2 Knowledge dissemination . 23 5.3. 3 Knowledge utilization . 23 5.3. 4 Administrative innovation . 24
Age-related decline in the expression of GDF9 and BMP15 genes in follicle �uid and granulosa cells derived from poor ovarian responders

Background: Growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15) genes play important roles in folliculogenesis. Altered expression of the two have been found among patients with poor ovarian response (POR). In this prospective cohort study, we have determined the expression of the GDF9 and BMP15 genes in follicle �uid (FF) and granulosa cells (GCs) derived from poor ovarian responders grouped by age, and explored its correlation with the outcome of in vitro fertilization and embryo transfer (IVF-ET) treatment. Methods: A total of 196 patients with POR were enrolled from a tertiary teaching hospital. The patients were diagnosed by the Bologna criteria and sub-divided into group A (< 35 year old), group B (35-40 year old), and group C (> 40 year old). A GnRH antagonist protocol was conducted for all patients, and FF and GCs were collected after oocyte retrieval. Expression of the GDF9 and BMP15 genes in the FF and GCs was determined with enzyme-linked immunosorbent assay (ELISA), quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting. Results: Compared with group C, groups A and B had signi�cantly more two pronuclei (2PN) oocytes and transplantable embryos, in addition with higher rates of implantation and clinical pregnancy (P < 0.05). The expression level of GDF9 and BMP15 genes in the FF and GCs differed signi�cantly among the three groups (P < 0.05), showing a trend of decline along with age. The ratio of GDF9/BMP15 mRNA levels were similar among the three groups (P > 0.05). The relative levels of GDF9 and BMP15 proteins in GCs have correlated with the relative mRNA levels in GCs and protein concentrations in FF (P < 0.05). Conclusions: For poor ovarian responders, in particular those over 40, the expression of GDF9 and BMP15 is declined along with increased age and in accompany with poorer oocyte quality and IVF outcome, whilst the ratio of GDF9/BMP15
The structure and function of yeast centromeres.

INTRODUCTION . 29 THE ISOLATION AND FUNCTIONAL PROPERTIES OF S. CEREVISIAE CENTROMERES . 3 1 Isolation by Chromosome Walking from Nearby Genes . 3 1 Mitotic Stabilization o f Plasm ids b y CEN Sequences. 32 Copy-Number Control and Meiotic Segregation of CEN Plasm ids . 33 The Requirement for a Separate Replicator 35 Linear Plasmids and Minichromosomes Carrying S. cerevisiae Telomeres . 35 The Instability of Minichromosomes . 36 Genomic Substitutions of Centromeres in S. cerevisiae 38 Dicentric Chromosomes and Minichromosomes . 39 The Behavior of S . cerevisiae Centromeres in Other Organisms. 40 THE MOLECULAR STRUCTURE OF S. CEREVISIAE CENTROMERES . 41 Nucleotide Sequences. 4 1 The Functional Boundaries of s. cerevisiae Centromeres . 42 The Effects of Specific Structural Alterations of CEN Sequences 43 The Chromatin Structure of s. cerevisiae Centromeres . 46 CENTROMERE-BINDING PROTEINS . 48 THE TRANSCRIPTION OF DNA ADJACENT TO S. CEREVISIAE CENTROMERES 48 MUTATIONS AFFECTING CHROMOSOME SEGREGATION IN S. CEREVISIAE. 49 THE CENTROMERES OF S. POMBE . 50 CONCLUSIONS . 51
Neuro-BioBehavioral Mechanisms of Placebo and Nocebo Responses : Implications for Clinical Trials and Clinical Practice

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Determinants of the Repeated-Bout Effect After Lengthening Contractions

Objective:Stresses to skeletal muscle often result in injury. A subsequent bout of the same activity performed days or even weeks after an initial bout results in significantly less damage. The underlying causes of this phenomenon, termed the "repeated-bout effect" (RBE), are unclear. This study compared the protective effect of two different injury protocols on the ankle dorsiflexors in the rat. We hypothesized that the RBE would occur soon after the initial injury and persist for several weeks and that the RBE would occur even if the second injury was performed under different biomechanical conditions than the first. Design:In this controlled laboratory study, the dorsiflexor muscles in the left hind limbs of adult male Sprague-Dawley rats (N = 75) were subjected to ten repetitions of large-strain lengthening contractions or 150 repetitions of small-strain lengthening contractions. Results:Both protocols induced a significant (P < 0.001) and similar loss of isometric torque (approximately 50%) after the first bout of contractions. The RBE occurred as early as 2 days after the injury and remained high for 14 days (P < 0.001) but diminished by 28 days and was lost by 42 days. The small-strain contractions offered a protective effect against a subsequent large-strain contraction, but not vice versa. Although the RBE did not occur sooner than day 2, the early recovery after a second large-strain injury performed 8 hrs after the first was 2-fold greater than after a single injury. Conclusions:The RBE is both rapid in onset and prolonged, and some, but not all, injuries can protect against different types of subsequent injury.