Miracle-dz/UniFAR-FTUs huggingface dataset:
Generalized Berezin-Toeplitz quantization of Kähler supermanifolds

We extend the construction of generalized Berezin and Berezin-Toeplitz quantization to the case of compact Hodge supermanifolds. Our approach is based on certain super-analogues of Rawnsley's coherent states. As applications, we discuss the quantization of affine and projective superspaces. Furthermore, we propose a definition of supersymmetric sigma-models on quantized Hodge supermanifolds. The corresponding quantum field theories are finite and thus yield supersymmetry-preserving regularizations for QFTs defined on flat superspace.
Whole hand modeling using 8 wearable sensors: biomechanics for hand pose prediction

Although Data Gloves allow for the modeling of the human hand, they can lead to a reduction in usability as they cover the entire hand and limit the sense of touch as well as reducing hand feasibility. As modeling the whole hand has many advantages (e.g. for complex gesture detection) we aim for modeling the whole hand while at the same time keeping the hand's natural degrees of freedom (DOF) and the tactile sensibility as high as possible while allowing for manual tasks like grasping tools and devices. Therefore, we attach motion sensor boards (accelerometer, magnetometer and gyroscope) to the human hand. We conducted a user study and found the biomechanical dependence of the joint angles between the fingertip close joint (DIP) and the palm close joint (PIP) in a relation of DIP = 0.88 PIP for all four fingers (SD=0.10, R2=0.77). This allows the data glove to be reduced by 8 sensors boards, one per finger, three for the thumb, and one on the back of the hand as an orientation baseline for modeling the whole hand through. Even though we found a joint flexing relationship also for the thumb, we decided to retain 3 sensor units here, as the relationship varied more (R2=0.59). Our hand model could potentially serve for rich handmodel-based gestural interaction as it covers all 26 DOF in the human hand.
Erupting Cataclysmic Variable Stars in the Nearest Globular Cluster, NGC 6397: Intermediate Polars?

NGC 6397 is the closest globular cluster and hence the ideal place to search for faint stellar populations such as cataclysmic variables (CVs). Hubble Space Telescope (HST) and Chandra observers have identified nine certain and likely CVs in this nearby cluster, including several magnetic CV candidates. We have combined our recent UV imagery with archival HST images of NGC 6397 to search for new CV candidates and especially to look for dwarf nova–like eruptive events. We find remarkable and somewhat unexpected dwarf nova–like eruptions of the two well-known cataclysmic systems CV2 and CV3. These two objects have been claimed to be magnetic CVs, as indicated by their helium emission-line spectra. Magnetic fields in CVs are usually expected to prevent the disk instability that leads to dwarf nova eruptions. In fact, most field magnetic CVs are observed to not undergo eruptions. Our observations of the dwarf nova eruptions of CV2 and CV3 can be reconciled with these objects' He II emission lines if both objects are infrequently erupting intermediate polars, similar to EX Hya. If this is the case for most globular cluster CVs, then we can reconcile the many X-ray and UV-bright CV candidates seen by Chandra and HST with the very small numbers of erupting dwarf novae observed in cluster cores.
Low Power Low Phase Noise LC Quadrature VCO Topology

A simple low power low phase noise LC QVCO (Quadrature Voltage Controlled Oscillator) topology is proposed. The topology minimizes phase noise by eliminating the contributions from the tail current source and coupling transistors. With no more than 3.36 mW power consumption from a 1.2 V power supply, the VCO achieves -124dBc/Hz phase noise performance at 1 MHz offset from the 2.85 GHz carrier frequency.
of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Epitaxial growth and surface properties of half-metal NiMnSb Epitaxial growth and surface properties of half-metal NiMnSb films films

We present, herein, an extended study of the half-Heusler alloy NiMnSb, start-ing with the deposition technique, continuing with the basic structural and magnetic properties of the thin ﬁ lms, and ﬁ nishing with the electronic and compositional properties of their surfaces. The experimental methods we apply combine magnetization and magnetoresistivity measurements, atomic force microscopy, ferromagnetic resonance, x-ray and neutron diffraction, low energy electron diffraction, angle resolved x-ray photoemission, extended x-ray absorption ﬁ ne structure spectroscopy, soft x-ray magnetic circular dichroism and spin polarized inverse photoemission spectroscopy. We ﬁ nd that stoichiometric surfaces exhibit close to 100% spin polarization at the centre of the surface Brillouin zone at the Fermi edge at ambient temperatures. There is strong evidence for a moment reordering transition at around 80 K which marks the crossover from a high polarization state ( T < 80 K) to a more representative metallic ferromagnetic state ( T > 80 K). The results from the different experimental techniques are successively reviewed, with special emphasis on the interplay between composition and electronic structure of the NiMnSb ﬁ lm surfaces. Surface segregation, consistent with a difference in free enthalpy between the surface and the bulk, is induced by annealing treatments. This surface segregation greatly reduces the surface polarization. substrates with Mo The epitaxial
Stiffness and damping scheduling for legged locomotion

Legged robots are intrinsically nonlinear hybrid dynamic systems due to the intermittent contact of the feet with the ground. For optimal performance, in the sense of maximizing speed or energy consumption, different motion control affects the stance from the swing leg during a stride. Designing such controllers, however, can be a daunting task when there is a lack of knowledge about the exact operating conditions, i.e., the surface on which the robot walks or runs. To address this problem, we present a model-free learning controller making use of a supervised machine learning method called Local Linear Regression. This method allows the controller to online adjust its controller parameters as a function of the state. We demonstrate this approach on a tunable stiffness and damping controller for a quadrupedal legged robot. The controller learns to compensate for friction and other nonlinear effects encountered while walking in an average sense, without the use of explicit models. Experimental results with the robot walking on a treadmill are presented.
Experimental cryptosporidiosis in calves: clinical manifestations and pathological findings

Twenty-two calves between one and 20 days old were infected orally or by contact with cryptosporidia. Calves were maintained as either specific pathogen free, colostrum fed or sucking and were inoculated with either a bacteria free or a contaminated cryptosporidium preparation. Enteritis was characterised by depression, anorexia and diarrhoea and cryptosporidium oocysts were excreted during the clinical course of the illness. In the initial stages of the disease, cryptosporidium infestation was found throughout the small intestine; in the later stage the large intestine was also affected. Villous atrophy and fusion was present at small intestinal sites infected with cryptosporidia and lactase levels were depressed. No lesions were seen in infected large intestinal mucosa. Although the incubation period was longest (five to seven days) in calves infected by contact, there were few differences in the clinical course of disease or the pathological findings between any of the infected calves.
Neutrino emission from dense matter containing meson condensates.

We consider the rate at which energy is emitted by neutrinos from the dense interior of neutron stars containing a Bose condensate of pions or kaons. The rates obtained are larger, by a factor of 2, than those found earlier, and are consistent with those found for the direct Urca processes.
Perfect PAPA©: Designing and Evaluating Digital Instructional Game Combining Situated Learning and Role-playing Strategies for Life Skill Training

Developing learners' life skills become an important research issue. This study design and evaluate a digital instructional game combining situated learning and role-playing strategies for life skill training. Through the empirical evaluation, this study preliminarily explored learners' attitudes toward usefulness, ease of use and game elements. Finally, this paper also discusses the potential and limitations of this game.
Can insertional torque predict screw loosening and related failures? An in vivo study of pedicle screw fixation augmenting posterior lumbar interbody fusion.

STUDY DESIGN An investigation of the relation between intraoperative insertional torque of pedicle screws, bone mineral density of the vertebra, and development of screw loosening in vivo. OBJECTIVES To determine the usefulness of intraoperative measurement of the insertional torque of pedicle screws. SUMMARY OF BACKGROUND DATA Some biomechanical studies have demonstrated that the insertional torque is highly correlated with bone mineral density and the stability of pedicle screws in vitro. METHODS Pedicle screw fixation was performed with posterior lumbar interbody fusion in 62 consecutive patients. The mean age of the patients at the time of surgery was 58 years. The insertional torque of pedicle screws was measured intraoperatively in all patients. The mean follow-up period was 2.7 years. RESULTS The mean insertional torque was 1.28 +/- 0.37 Nm in patients with screw loosening and 1.50 +/- 0. 40 Nm in patients without the problem. The mean insertional torque in patients with compression fractures in the upper vertebra adjacent to the fixed segment was 0.83 +/- 0.23 Nm. There was no significant difference between the mean insertional torque in patients with screw loosening and those without the condition. The mean insertional torque in patients without screw loosening was significantly greater than in patients with compression fractures (P < 0.01). A high correlation was found between insertional torque and bone mineral density (P < 0.01). CONCLUSIONS Although a high correlation was found between the insertional torque of pedicle screws and bone mineral density in vivo, the insertional torque could not objectively predict screw loosening.
Two Pax genes, eye gone and eyeless, act cooperatively in promoting Drosophila eye development

We report the identification of a Drosophila Pax gene, eye gone (eyg), which is required for eye development. Loss-of-function eyg mutations cause reduction or absence of the eye. Similar to the Pax6 eyeless (ey) gene, ectopic expression of eyg induces extra eye formation, but at sites different from those induced by ey. Several lines of evidence suggest that eyg and ey act cooperatively: (1) eyg expression is not regulated by ey, nor does it regulate ey expression, (2) eyg-induced ectopic morphogenetic furrow formation does not require ey, nor does ey-induced ectopic eye production require eyg, (3) eyg and ey can partially substitute for the function of the other, and (4) coexpression of eyg and ey has a synergistic enhancement of ectopic eye formation. Our results also show that eyg has two major functions: to promote cell proliferation in the eye disc and to promote eye development through suppression of wg transcription.
Identification of inner and outer cell proliferation centers during fetal tooth morphogenesis.

Patterns of cell division have been examined in the proliferative cervical loop tissues of fetal rabbit incisor tooth organs. Evaluation of the distribution patterns of silver grains, resulting from the incorporation of [3H]-thymidine into newly synthesized DNA within tooth organs in vitro, resulted in identification of two proliferation centers: (1) an inner center consisting of inner enamel epithelial cells (i.e., preameloblasts) and predontoblasts ; and (2) an outer center consisting of outer enamel epithelium and adjacent mesenchyme. In contrast to the classically held description of epithelial cell differentiation during tooth morphogenesis, our data suggest that outer enamel epithelial cells do not migrate around the cervical loop and do not provide progenitor cells for subsequent ameloblast cytodifferentiation. During tooth development, epithelial and mesenchymal cells, which arise from either an inner or outer proliferative center, migrate in distal directions relative to the proliferative sites. Therefore, the progenitor cells for ameloblasts and odontoblasts were found to be localized in the inner proliferation zone. The implications of these findings regarding the development of continuously erupting rabbit and rodent incisor tooth organs are discussed in the context of a model.
Software systems reliability characteristics

The target of the present trend of the software industry is to design and develop more reliable programmes, even if, in the beginning, this requires larger costs necessary to obtain the level of reliability. It has been found that in the case of programmes which contain large amounts of components - financial and accounting programmes are also included here - the actions taken to increase the level of reliability in the operational stage induces a high level of costs. This one is superior to the one that involves obtaining systems of programmes with an adequate reliability, before releasing them on the market and before using them. Before taking into account the material and financial aspects that involve obtaining the adequate reliability, we must consider the social effects that occur because of the lack of reliability of programmes.
Wide-band moving source passive localization in highly corruptive environments

A passive localization algorithm is proposed for moving sources emitting man-made signals. The method models the received signals on two sensors as (singularly) almost-cyclostationary. It is not based on the usual so called narrowband assumption that limits bandwidth, data-record length, and relative radial speed between source and sensors. Thus, unlike previous techniques, it statistically characterizes the signals on the two sensors as jointly spectrally correlated rather than as jointly almost cyclostationary. The algorithm estimates time-scale ratio, frequency-difference-of-arrival, and time-delay-of-arrival of the source signal impinging on the two sensors. It is highly tolerant to noise and interference and outperforms classical cyclostationarity-based techniques for large data-record lengths.
Construct Validity of an Instrument To Measure Computer Aversion.

Development and determination of the construct validity of a scale designed to assess aversion to computers are described. Based on a social learning model emphasizing efficacy, outcome, and reinforcement, the Computer AVersion Scale (CAVS) was developed for use with mental health clients who were high school age and older, as well as mental health professionals. The original CAVS item pool consisted of 45 true/false items. The CAVS produces four scores: (1) efficacy expectations (one's ability to perform behaviors required to operate a computer); (2) outcome expectations (one's knowledge of the required behaviors); (3) reinforcement expectations (whether outcomes produced by computer use meet one's goals); and (4) a total score, reflecting the cumulative effects of goals. A fourth summary score reflects the cumulative effects of the other three scores. Two groups of subjects were employed to reduce the 45-item CAVS to a 31-item instrument, which was then administered to 270 undergraduates enrolled in a large northeastern university. The Attitudes Toward Computers Scale was also atIministered to 78 subjects who completed the CAVS. The CAVS was also compared with othr instruments designed to measure negative affect, including two instruments for use in diagnosing feelings about computers, as well as an instrument for assessing levels of computer experience. Results, which cover such variables as gender and educational background, indicate that the CAVS is a reliable and valid measure of computer aversion. Seven data tables, a 23-item list of referenceb, and the CAVS are included. (TJH) *********************************************************************** Reproductions supplied by EDRS are the best that can be made from the original document. *********************************************A************************* U.S. DEPARTMENT Of EDUCATION Office of Educational Research and Improvement EDUCATIONAL RESOURCES INFORMATION CENTER (ERIC) (4lis document hes been reprceluced as recived from the person Of OfglIoRidlOn originating it 0 Minor changes have been made to improve reproduction quality Points of view or opinions staled in this docu mant do not necessarily represent Who& OERI pcsition or policy "PERMISSION TO REPRODUCE THIS MATERIAL HAS BEEN GRANTED BY 5C077 7: /146767? TO THE EDUCATIONAL RESOURCES INFORMATION CENTER (ERIC). " Construct Validity of an Instrument to Measure Computer Aversion Scott T. Meier Department of Counseling & Educational Psychology SUNY Buffalo Presentation at APA Convention Symposium, "Computers and Personality," August, 1990. Mailing Address: Scott T. Meier, Ph.D. Department of Counseling & Ed. Psycnology 409 Baldy Hall SUNY Buffalo Buffalo, NY 14260 Note: Portions of the following are based on data from Meier (1988) and Meier and Lambert (1990). 1
Adaptive space decomposition for fast visualization of soft objects

We present a fast visualization scheme of soft objects by introducing an efficient evaluation method for a field function. The evaluation of a field function includes distance computation between a point in space and the defining primitives of the soft object. If the unnecessary distance computations between a point in space and the components that do not influence the point can be avoided, the evaluation can be accelerated. For this purpose, we decompose the space into adaptive-sized cells according to the bounding volume of the components and build a data structure called an interval tree through which the influencing components for a point are sought. The bounding volume of a component is generated by considering the radius of a component and k-DOPs. The proposed scheme can be used in many applications for soft objects such as modeling and rendering, especially in the interactive modeling process. Copyright © 2003 John Wiley & Sons, Ltd.
Effect of Family Structure on Parental Involvement: Perspectives of Principals and Traditional, Dual-Income, and Single Parents

This study examined children's school needs, the school's response to those needs, and present and desirable forms of parental involvement from the perspectives of traditional, dual-income, and single parents. Parents from each family type and principals shared their opinions in 48 in-depth interviews. Respondents agreed that children from all families need a quality education in a safe environment. While respondents disagreed on specific forms that parental involvement should take, they agreed that it is the principal's responsibility to provide an open climate and interactive communication for meaningful involvement to occur.
Identification of shed proteins from chinese hamster ovary cells: Application of statistical confidence using human and mouse protein databases

The shedding process releases ligands, receptors, and other proteins from the surface of the cell and is a mechanism whereby cells communicate. Even though altered regulation of this process has been implicated in several diseases, global approaches to evaluate shed proteins have not been developed. A goal of this study was to identify global changes in shed proteins in media taken from cells exposed to low‐doses of radiation to develop a fundamental understanding of the bystander response. Chinese hamster ovary cells were chosen because they have been widely used for radiation studies and are reported to respond to radiation by releasing factors into the media that cause genomic instability and cytotoxicity in unexposed cells, i.e., a bystander effect. Media samples taken for irradiated cells were evaluated using a combination of tandem‐ and Fourier transform‐ion cyclotron resonance (FT‐ICR)‐mass spectrometry (MS) analyses. Since the hamster genome has not been sequenced, MS data was searched against the mouse and human protein databases. Nearly 150 proteins identified by tandem mass spectrometry were confirmed by FT‐ICR. When both types of MS data were evaluated, using a new confidence scoring tool based on discriminant analyses, about 500 proteins were identified. Approximately 20% of these identifications were either integral membrane proteins or membrane associated proteins, suggesting that they were derived from the cell surface and, hence were likely shed. However, estimates of quantitative changes, based on two independent MS approaches, did not identify any protein abundance changes attributable to the bystander effect. Results from this study demonstrate the feasibility of global evaluation of shed proteins using MS in conjunction with cross‐species protein databases and that significant improvement in peptide/protein identifications is provided by the confidence scoring tool.
Paraprofessionals in Education

Overview for Paraprofessionals. Phases and Stages: Learning About the Children. Preparation for New Challenges: Get Ready. Working and Playing with Infants, Toddlers, and Preschoolers. Learning Activities: Hands-On Learning with All Systems Go. Games and Learning Centers: Making It Fun and Making It Stick. Working with Children with Special Needs. Ways and Means For Good Behavior. Classroom Organization. Resources for the Productive Paraprofessional. Onward and Upward: Upgrading Paraeducator Status. Policies and Procedures: Learning the Ways of Your Workplace. The Job Market for Paraprofessionals. Appendix A: End of Year Poem. Appendix B: Abbreviations. Appendix C: Paraeducator Competencies and Job Descriptions. Appendix D: United States Civil Rights Office. Appendix E: Forms That May Help In the Beginning Days. Appendix F: Ideas to Get You Started. Appendix G: Legal Issues for Paraeducators: Your Rights and Your Obligations. Appendix H: Where to Find Answers to Common Questions.
Causes and Consequences of DNA Repair Activity Modulation During Stationary Phase in Escherichia coli

ABSTRACT Escherichia coli responds to nutrient exhaustion by entering a state commonly referred to as the stationary phase. Cells entering the stationary phase redirect metabolic circuits to scavenge any available nutrients and become resistant to different stresses. However, many DNA repair pathways are downregulated in stationary-phase cells, which results in increased mutation rates. DNA repair activity generally depends on consumption of energy and often requires de novo proteins synthesis. Consequently, unless stringently regulated during stationary phase, DNA repair activities may lead to an irreversible depletion of energy sources and, therefore to cell death. Most stationary phase morphological and physiological modifications are regulated by an alternative RNA polymerase sigma factor RpoS. However, nutrient availability, and the frequency and nature of stresses, are different in distinct environmental niches, which impose conflicting choices that result in selection of the loss or of the modification of RpoS function. Consequently, DNA repair activity, which is partially controlled by RpoS, is differently modulated in different environments. This results in the variable mutation rates among different E. coli ecotypes. Hence, the polymorphism of mutation rates in natural E. coli populations can be viewed as a byproduct of the selection for improved fitness.