Miracle-dz/UniFAR-FTUs huggingface dataset:
Experimental measurements of the seakeeping characteristics of fast displacement catamarans in long-crested head-seas

The report describes an experimental investigation into the seakeeping properties of catamarans. Three geometrically similar hull forms were tested covering a range of Length:Displacement ratio from 7.4 to 9.5. The hulls are of round bilge transom stern form and are based on the NPL round bilge series. A number of hull configurations, including monohull and two catamaran demihull spacings, were tested at three Froude numbers (F subscript n = 0.2, 0.53, 0.8) and over a range of wavelengths. Long-crested head-seas were used for all experiments. Measurements of heave, pitch, vertical acceleration at two stations and added resistance in waves were made. Response functions have been calculated from both regular and irregular wave experiments.
Distributed algorithms for maximizing the lifetime of wireless sensor networks

Wireless sensor networks (WSNs) are emerging as a key enabling technology for applications domains such as military, homeland security, and environment. However, a major constraint of these sensors is their limited battery. In this dissertation we examine the problem of maximizing the duration of time for which the network meets its coverage objective. Since these networks are very dense, only a subset of sensors need to be in “sense” or “on” mode at any given time to meet the coverage objective, while others can go into a power conserving “sleep” mode. This active set of sensors is known as a cover. The lifetime of the network can be extended by shuffling the cover set over time. In this dissertation, we introduce the concept of a local lifetime dependency graph consisting of the cover sets as nodes with any two nodes connected if the corresponding covers intersect, to capture the interdependencies among the covers. We present heuristics based on some simple properties of this graph and show how they improve over existing algorithms. We also present heuristics based on other properties of this graph, new models for dealing with the solution space and a generalization of our approach to other graph problems. INDEX WORDS: Wireless sensor networks, Target coverage, Lifetime, Scheduling
An Exploratory Evaluation of the Employment Role of Commercial Cart Pushing in Metropolitan Lagos

This paper is an evaluation of the employment role of Cart Pushing in Metropolitan Lagos and how it sustains the operators and by extension family members. Currently, Lagos accommodates 65% of industries in Nigeria, which account for the attraction of people from every part of Nigeria in search of jobs. The consequence could be daily observed in the ever growing number of unemployed people aimlessly roaming the streets of Lagos. The reality of not having a job by these migrants has stimulated so many innovations; one of such is the ever growing number of commercial cart pushers with various types and designs meant for different purposes. Data used for this paper was collected through the use of structured questionnaires administered on commercial cart pushers that operate within the Okokomaiko/Mile2 traffic corridor. The paper evaluated some of the factors that significantly influence the profit profile of operators through Pearson Correlation Coefficient. The paper has captured the various types of carts, their designs, volumes and the different wares they move and their modes of operations. The paper revealed the ethnic dimension of this business and observed that most of the operators are of northern extraction. The paper examined its contribution to the GDP of the state through payment of taxes and other levies. Finally the paper posits that improved management of this line of business could take the form of increased availability of carts through reinjection of profit into operations, improved finances through soft loans from the various micro finance banks.
Effect of Academic Supervision and School Culture on Teacher’s Teaching Quality in Public Islamic Senior High School Banjarmasin

The research aimed at analyzing the effect of school principals' academic supervision, the effect of school culture and the effect of both of them the simultaneous influence of both on the teacher teaching quality in all MAN at Banjarmasin city is conducted through quantitative methods. Statistical data shows 93.90% of teachers believe that the school principal has implemented supervision well. 99.40% believe that the school culture encourages the existence of good teaching quality and 99.95% believe that the teachers' teaching quality is already good. Regression analysis provides conclusion that (1) there is an effect of school culture on the teachers' teaching quality in all MAN at Banjarmasin, (2) there is an influence of school culture on teachers' teaching quality in MAN at Banjarmasin, and (3) there is a simultaneous effect of principal academic supervision and school culture on the teachers' teaching quality in all MAN at Banjarmasin. Based on these data, researchers suggest that principals should implement academic supervision continuously. Principals and teachers should maintain a conducive culture at school because both have an effect which improves the teachers' teaching quality
Theory and measurement

Volume 1: part I, introduction part II, theoretical considerations measurement issues. Volume 2: part I, surveys of the impact of training part Ii, public sector training - A, experimental evaluations, B, non-experimental evaluations part III, private sector training - A, evidence form the United States, B, evidence from the United Kingdom.
Digital Teaching Platforms: Customizing Classroom Learning for Each Student. Technology & Education, Connections (TEC).

Digital Teaching Platforms is an essential read for those who believe that education needs to be reimagined to prepare students for tomorrow. Dede and Richards provide a compelling collection of some of the best minds in education and education technology to describe how educators, policymakers, and the public should be thinking about these disruptive technologies that hold the promise of individualizing learning. --Keith R. Krueger, CEO, Consortium for School Networking (CoSN) In their remarkable collection, Dede and Richards illuminate a powerful category of educational technologies in the emerging world of pervasive 1:1 computing. This book will change the discourse on 21st century education. --Roy Pea, David Jacks Professor of Education and Learning Sciences, Stanford UniversityThe Digital Teaching Platform (DTP) brings the power of interactive technology to teaching and learning in classrooms. In this authoritative book, top researchers in the field of learning science and educational technology examine the current state of design and research on DTPs, the principles for evaluating them, and their likely evolution as a dominant medium for educational improvement. The authors examine DTPs in light of contemporary classroom requirements, as well as current initiatives such as the Common Core State Standards, Race to the Top, and the 2010 National Educational Technology Plan.
The Road to Nissan: Flexibility, Quality, Teamwork

Written from the inside, The Road to Nissan goes beyond the superficial and describes the worldwide influences on Nissan's initiatives. It explodes many stereotypes about Japanese management but distills those elements which are transferable and shows how this can be achieved. The author also vigorously challenges much recent Western management thinking, offering specific remedies and proposing a totally integrated strategy aimed at achieving mutual trust and commitment with everyone working towards a common goal.
Flame Balls in a non-uniform reactive mixture: preferential diffusion, heat-loss and stability

The paper examines the existence and stability of axisymmetric flame balls in a non-uniform reactive mixture corresponding to a mixing layer taking into account preferential diffusion and volumetric heat-loss. The mixture's non-uniformity is measured with a non-dimensional parameter ε which is inversely proportional to the square root of the Damköhler's number. The investigation is carried out analytically in the limit of large activation energy and small values of ε, and numerically in the general case. New simple formulas accounting for preferential diffusion are derived which determine in particular the thermal energy and location of the flame ball; these may be argued to represent the minimum ignition energy and optimum spark location for a successful forced ignition of the diffusion flame in the mixing layer. A new free boundary problem (FBP) with two dependent variables is derived which describes non-adiabatic flame balls subject to volumetric heat-loss from the burnt gas. For small ε, the analytical solution to the FBP shows that the main effect of weak non-uniformity can be understood in a simple way if the volume of the distorted flame ball is characterised by an equivalent radius which is plotted versus a heat-loss parameter κ. Specifically, the curve is the same inverse-C shaped curve found in the literature in the uniform case () but shifted to the left by an amount, proportional to , which explicitly accounts for all parameters. The numerical investigation addresses the existence of the axisymmetric flame balls and their stability within two models familiar in studies on flame balls in uniform mixtures, namely the ‘far-field losses model’ where heat-losses from the burnt and unburnt gas are accounted for, and the ‘near-field losses model’ adopted in our analytical investigation, where heat-loss from the unburnt gas is neglected. Typically four regions are determined in the κ-ε plane for fixed Lewis numbers which identify conditions for the existence of either the flame ball, the diffusion flame or of both. This subdivision is argued to provide useful insight regarding the possible modes of burning in the mixing layer. A particularly interesting type of solutions identified for moderate values of ε corresponds to ring-shaped flame balls, termed ‘flame rings’, in regions where the diffusion flame cannot exist. As for the stability of the flame balls, we have found these to be typically unstable, as expected for their spherical counterparts. However, we have also determined these to be stable in special circumstances requiring low Lewis numbers and the presence of heat-losses and depending on the non-uniformity parameter ε. Furthermore, an increase in ε was found to play a stabilising effect, at least for the cases considered.
Patchy Micelles with a Crystalline Core: Self-Assembly Concepts, Properties, and Applications

Crystallization-driven self-assembly (CDSA) of block copolymers bearing one crystallizable block has emerged to be a powerful and highly relevant method for the production of one- and two-dimensional micellar assemblies with controlled length, shape, and corona chemistries. This gives access to a multitude of potential applications, from hierarchical self-assembly to complex superstructures, catalysis, sensing, nanomedicine, nanoelectronics, and surface functionalization. Related to these applications, patchy crystalline-core micelles, with their unique, nanometer-sized, alternating corona segmentation, are highly interesting, as this feature provides striking advantages concerning interfacial activity, functionalization, and confinement effects. Hence, this review aims to provide an overview of the current state of the art with respect to self-assembly concepts, properties, and applications of patchy micelles with crystalline cores formed by CDSA. We have also included a more general discussion on the CDSA process and highlight block-type co-micelles as a special type of patchy micelle, due to similarities of the corona structure if the size of the blocks is well below 100 nm.
Interaction between the Renin–Angiotensin System and Enteric Neurotransmission Contributes to Colonic Dysmotility in the TNBS-Induced Model of Colitis

Angiotensin II (Ang II) regulates colon contraction, acting not only directly on smooth muscle but also indirectly, interfering with myenteric neuromodulation mediated by the activation of AT1 /AT2 receptors. In this article, we aimed to explore which mediators and cells were involved in Ang II-mediated colonic contraction in the TNBS-induced rat model of colitis. The contractile responses to Ang II were evaluated in distinct regions of the colon of control animals or animals with colitis in the absence and presence of different antagonists/inhibitors. Endogenous levels of Ang II in the colon were assessed by ELISA and the number of AT1/AT2 receptors by qPCR. Ang II caused AT1 receptor-mediated colonic contraction that was markedly decreased along the colons of TNBS-induced rats, consistent with reduced AT1 mRNA expression. However, the effect mediated by Ang II is much more intricate, involving (in addition to smooth muscle cells and nerve terminals) ICC and EGC, which communicate by releasing ACh and NO in a complex mechanism that changes colitis, unveiling new therapeutic targets.
The Effectiveness of Virtual Reality for Rehabilitation of Parkinson Disease: An Overview of Systematic Reviews and Meta-Analyses

Background: An increasing number of systematic reviews (SRs) and meta-analyses (MAs) of clinical trials have begun to investigate the effects of virtual reality (VR) in patients with Parkinson disease (PD). The aim of this overview of was to systematically summarize the current best evidence for the effectiveness of VR therapy for the rehabilitation of people with PD.Methods: We searched SRs/MAs based on randomized controlled trials (RCTs) for relevant literature in PubMed, Embase and Cochrane library databases from inception to December 5, 2020. The methodological quality of included SRs/MAs was evaluated with the Assessing the Methodological Quality of Systematic Reviews 2 (AMSTAR-2), and the evidence quality of outcome measures with the Grading of Recommendations, Assessment, Development and Evaluation (GRADE). Results: A total of nine SRs/MAs were included. The evaluation with AMSTAR-2 showed that all included SRs/MAs but one were rated as low or critically low quality studies. The GRADE criteria revealed 19 studies with very-low-quality evidences, 20 with low-quality evidences, 8 with moderate-quality evidences, and 1 with high-quality evidence. Effectiveness evaluation showed that VR therapy had greater improvement of stride length compared with control groups. However, there were inconsistent results (better or similar effects) regarding to gait speed, gait ability, balance, global motor function, activities of daily living, quality of life, postural control, cognitive function, and neuropsychiatric symptoms.Conclusions: VR therapy appears to be a promising and effective treatment for PD, but there is still a lack of high-quality evidence. In the future, rigorous-designed, high-quality RCTs with larger sample sizes are needed to further verify the effectiveness of VR therapy in the treatment of PD.
Aviation Security: A Case for Risk-Based Passenger Screening

Abstract : Since September 11, 2001, the United States has invested considerable resources to improving aviation security. Despite technology and procedural improvements, passenger screening remains subject to much criticism. Challenges to the current approach include the assumption that all passengers pose a risk; the reactive responses to new threats that are applied broadly to all passengers; high levels of threat uncertainty; a focus on objects versus people; and time constraints on completing the screening process. Combined, these challenges adversely impact performance and result in poor public acceptance of government efforts to protect the commercial aviation sector from terrorist attacks. Questions persist regarding the long-term efficacy and sustainability of the current approach and the availability of a better model. The approach used by Israel and a risk-based approach that calibrates security measures to groups of passengers based on risk are two frequently offered alternative screening models. This thesis evaluates the current and alternative models using security effectiveness, risk mitigation, constitutional permissibility, social acceptance, and political feasibility as evaluation dimensions. This evaluation of policy options allows a side-by-side comparison of the three models and demonstrates that adopting a risk-based security approach to passenger screening is the best option for the U.S. government to pursue.
Effects of Spacing and Geometry of Distributed Roughness Elements on a Two-Dimensional Turbulent Boundary Layer

Abstract : This thesis is a study of the effects of distributed roughness elements on a two-dimensional turbulent boundary layer. Measurements were taken on a total of ten rough wall configurations: four involving Gaussian spikes, and six with circular cylindrical posts. Rough wall flows are particularly suited to study with Laser Doppler Velocimetry (LDV) due to the fact that measurements are required near a solid surface, as well has in highly turbulent fluid. The LDV system used in this study is a fine resolution (50pm), three-component, fiber-optic system. All mean velocities, Reynolds stresses, and triple products are measured. This study is unique in the range and variety of roughness cases for which data was taken. The data show that flow over a rough wall is characterized by high levels of turbulence near the roughness element peaks at the interface between low-speed, near-wall fluid and the higher speed fluid above. Behind an element, high-momentum fluid sweeps toward the wall, and there is a small region of ejection of low-momentum fluid. Cylindrical elements typically have larger magnitudes of turbulent stresses at their peaks compared to Gaussian elements. Trends in mean velocity profile parameters such as displacement height, roughness effect, and wake parameter are examined with respect to roughness element geometry and spacing.
The management of ambidexterity: an intellectual capital approach

In this thesis I propose that the literature on ambidexterity does not fully explore the detailed practices by which organisations and managers may achieve both exploitation and exploration. A systematic review identifies that studies have focused principally at the organisation-level, and there is a lack of both empirical and theoretical work at the micro-level of analysis highlighting how ambidexterity may be achieved in practical, complex, working structures. The research addresses these micro-mechanisms in the context of the management of projects, a suitable area in that it can be considered as using defined processes together with the flexibility to overcome particular issues that arise. The contribution of the thesis is that it presents an insight into the management of ambidexterity in such an environment, and identifies how multiple knowledge resources are utilised, together with the underlying managerial practices. The level of analysis is the project (specifically, IT-services projects in a major multinational organisation), using the manager as the unit of analysis. The research question is ‘How is ambidexterity achieved at the level of the project? ’ This is an opportunity to explore a practical as well as a theoretical gap, in an increasingly important area of business operations. The first stage of the research examines the managerial role in terms of intellectual capital, using a variety of projects. This shows that the sub-components of IC (human, social and organisational/project capital) can each be understood as having co-existing, orthogonal, exploitative and exploratory elements, an important extension of existing theory. The forms of intellectual capital are interwoven not only with each other, but also with the processes of exploitation and exploration, and to conceive of them as separate is an insufficient theorisation. The findings from the qualitative approach are used to investigate the duality of these concepts and bring greater clarity to our understanding of their operationalisation. This is followed by eight case studies, each using between three and five managerial respondents, together with project data, used to develop a more fine-grained understanding of ambidexterity in a wide range of industrial settings. This shows different managerial configurations (including ‘distributed’ and ‘point’ ambidexterity – an addition to current theory), together with five key managerial practices to enable project-level ambidexterity, identified in the context of project complexity, critical events and constraints.
A fully convolutional network with channel and spatial attention for hyperspectral image classification

ABSTRACT Deep learning method has achieved great success in the hyperspectral image (HSI) classification. However, the existing deep learning methods with local HSI patch as input can only use the local spatial-spectral information to determine the class of samples. In this paper, the fully convolutional network framework is proposed to classify the whole HSI scene. The whole HSI is taken as input of the deep network, and then the classification result of the whole HSI scene is output. In this way, there is no need to slice the original data cube, and the processing efficiency is greatly improved. In order to make better use of the global context information, we introduce channel and spatial attention model to enhance the discriminability of features. The classification experiments on two real HSI datasets show that the proposed method could achieve higher classification accuracy than the patch-based deep learning method, and the training and testing speed are faster.
Histomorphological Spectrum of Ovarian Masses in a Tertiary Centre of Eastern Nepal

Aims: To analyze the trends of ovarian masses in a tertiary centre in eastern Nepal. Methods: This was a retrospective cross sectional study conducted in Department of Pathology at Nobel Medical College and teaching hospital, Biratnagar, Nepal. Database of two years from April 2019 to April 2021 was searched. Gross and microscopic findings of cases including demographic details of patients with ovarian mass were analyzed and presented by descriptive parameters. Results: Out of 127 cases of ovarian masses studied, 95 (74.8%) were neoplastic. The common types were Germ cell tumors were (47; 37%), epithelial tumors (43; 33.9%) and endometriotic cyst (23; 18.1%). Mean age was 38.1 (range: 17-77) years in benign, 47.1 (30 – 70) years in malignant and 36.9 (21-53) years in non-neoplastic tumors; 11 cases were malignant and 63.6% were solid; and 23.8% of serous tumors were bilateral. Conclusions: Benign neoplastic lesions were the most common lesions and presented earlier than borderline and malignant lesions. Endometriotic cysts comprised the most common non- neoplastic lesions. The non-neoplastic lesions were predominantly cystic and the malignant lesions were predominantly solid. Most of the benign lesions were solid-cystic. Most mucinous tumors and all the sex-cord stromal tumors were unilateral while the seromucinous tumor and a significant number of serous tumors were bilateral.
Negative Side Effects and AI Agent Indicators: Experiments in SafeLife

Positron emission tomography (PET) using O-(2-[18F]fuoroethyl)-L-tyrosine (18F-FET) PET has been shown to be a useful tool for differentiating radiation therapy outcomes, such as brain metastasis recurrence or radiation necrosis. We present the case of a female patient with brain metastases from pulmonary mucinous adenocarcinoma with suspicion of tumor recurrence on follow-up magnetic resonance imaging (MRI) after radiosurgery. 18F-FET PET/computed tomography (CT) was indicative of radiation necrosis. Due to the patient’s medical history and the discrepancy between the brain MRI and PET/CT results, surgical biopsies were decided, which were positive for brain metastasis recurrence. The diagnosis of metastasis recurrence may also be challenging on 18F-FET PET/CT. In case of discrepancies between MRI and PET/CT results, false-negative 18F-FET PET/CT remains a possibility and requires careful follow-up or biopsy