Miracle-dz/UniFAR-FTUs huggingface dataset:
On some finite groups and their cohomology

The purposes of this paper are: (I) to characterize the finite groups whose 2-Sylow subgroups are not isomorphic to a generalized quaternion group and which have periodic cohomology of period 4, (II) to show that all possible cohomologies of such a group G can be realized by direct sums of (? -modules which belong to a specific finite family of G-modules. The author wishes to express his deep gratitude to Professor G. Whaples and Dr. K. Grant for many helpful suggestions and continual encouragement. The reader is referred to [1, Ch. XII] for basic notions, definitions and notations concerning cohomology of finite groups. The only departure from [1, Ch. XII] is the following: we shall say that a finite group G has periodic cohomology of period k if k is the least positive integer such that H(G, Z) contains a maximal generator [1, pp. 260-261]. And to avoid typographical difficulties we will denote by Z{1) the cyclic group of order I.
Fatty acids and other lipid composition of five Trifolium species with antioxidant activity

The contents of fatty acids and other lipids of Trifolium balansae Boiss, Trifolium stellatum Lin. , Trifolium nigrescens Viv. subsp. petrisavi (Clem) Holmboe, Trifolium constantinopolitanum Ser. , and Trifolium resupinatum L. var. resupinatum L. (Leguminosae) were determined by gas chromatography-mass spectrometry (GC-MS). The whole plant hexane extracts of five Trifolium species contained eight fatty acids consisting of linolenic (31.1%) and palmitic (18.9%) acids as the most abundant unsaturated and saturated fatty acids, respectively. The total unsaturation for the oils of five Trifolium species was 30.6–42.2%. In addition to fatty acids, some alkanes and phytol were also obtained. The antioxidant activity and contents of fatty acids and lipids of five Trifolium species T. balansae, T. stellatum, T. nigrescens subsp. petrisavi, T. constantinopolitanum, and T. resupinatum var. resupinatum are presented for the first time in this study.
Reconnaissance automatique de cibles partiellement immergées par imagerie I . R . Automatic sea target recognition in infrared imagery par

and key words The detection of targets is a significant and difficult problem for the new trends in naval warfare . The subject of this paper is the automatic partially immersed sea target detection using infrared images (Band III) . These data exhibit different resolutions (depending on the camera field of view), different signal to noise ratios (depending on the sea state) and different contrasts (depending on the temperature difference between the target and the sea) . In a very classical way, pattern recognition involves two steps : a pre-processing phase followed with a decision phase (detection, possibly classification) . A detection of region of interest with wavelet processing is proposed . This technique proceeds as follows. The filter is designed to localize targets corresponding to a specific size (width and height) . From different learning sets of targets and backgrounds (binary problem), a linear combination of four wavelets corresponding each to specific task (width size, height size, low contrast detection, small size target rejection (clutter noise)) is learned with the help of a Perceptron neural network . This network determines the coefficients of the linear combination and both the wavelet parameters in minimizing the error between the expected output and the real one . We can qualitatively conclude that the wavelet techniques are particularly robust . The decision consists in a correlation process which is a rough (the decision results from a threshold of the correlation plane) but very simple (a filtering) operation . The references are preprocessed in the same manner as the scene for each data series . To evaluate the correlation performances and consequently the preprocessing performances, parameters which characterize the correlation peak thinness and the autocorrelation to false alarm peak ratio are considered . It is shown that the wavelet technique is efficient and easily performed . Considerations about digital and optical implementations are given . The optical correlation is particularly well adapted to the correlation via wavelet processings . Infrared imagery, image processing, wavelet processing, pattern recognition, correlation . Reconnaissance automatique de cibles partiellement immergées
Screening of Radio-resistant Lactic Acid Bacteria

This study screened for radio-resistant strains lactic acid bacteria (LAB) by evaluating their capability to survive exposure to ionizing radiation. Ten strains of LAB - Lactobacillus bulgaricus, Lactobacillus paracasei, Lactobacillus casei, Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus delbruekii, Lactococcus lactis, Streptococcus thermophilus, Bifidobacterium breve, and Pediocuccos pentosaceus - were selected and subcultuted twice. The LAB was then further cultured for 3 d at 37 o C to reach 7-10 Log colony-forming units (CFU)/mL prior to irradiation and immediately exposed to gamma rays or electron beams with absorbed doses of 0, 1, 2, 3, 4, 5, 6, 8, and 10 kGy. Gamma irradiation gradually decreased the number of the tested viable LAB, and the effect was irradiation dose dependent. A similar effect was found in electron beam-irradiated LAB. Radiation sensitivity of LAB was calculated as D10 values, which ranged from 0.26 kGy to 0.9 kGy and 0.5 kGy to 1.44 kGy with exposure to gamma and electron beam irradiation, respectively, in all tested LAB. L. acidophilus was the most resistant to gamma and electron beam irradiation, with D10 values of 0.9 kGy and 1.44 kGy, respectively. These results suggest that L. acidophilus might be suitable for the preparation of probiotics as direct-fed microbes for astronauts in extreme space environments.
Balancing for Gross Motor Ability in Exergaming Between Youth with Cerebral Palsy at Gross Motor Function Classification System Levels II and III.

OBJECTIVE To test how three custom-built balancing algorithms minimize differences in game success, time above 40% heart rate reserve (HRR), and enjoyment between youth with cerebral palsy (CP) who have different gross motor function capabilities. Youth at Gross Motor Function Classification System (GMFCS) level II (unassisted walking) and level III (mobility aids needed for walking) competed in a cycling-based exercise video game that tested three balancing algorithms. MATERIALS AND METHODS Three algorithms: a control (generic-balancing [GB]), a constant non-person specific (One-Speed-For-All [OSFA]), and a person-specific (Target-Cadence [TC]) algorithms were built. In this prospective repeated measures intervention trial with randomized and blinded algorithm assignment, 10 youth with CP aged 10-16 years (X ± standard deviation = 12.4 ± 1.8 years; GMFCS level II n = 4, III n = 6) played six exergaming sessions using each of the three algorithms. Outcomes included game success as measured by a normalized game score, time above 40% HRR, and enjoyment. RESULTS The TC algorithm balanced game success between GMFCS levels similarly to GB (P = 0.11) and OSFA (P = 0.41). TC showed poorer balancing in time above 40% HRR compared to GB (P = 0.02) and OSFA (P = 0.02). Enjoyment ratings were high (6.4 ± 0.7/7) and consistent between all algorithms (TC vs. GB: P = 0.80 and TC vs. OSFA: P = 0.19). CONCLUSION TC shows promise in balancing game success and enjoyment but improvements are needed to balance between GMFCS levels for cardiovascular exercise.
Study on the Evolution Mechanism of Urban Flood Disaster Social Risk Based on the Model of Four Dimensions of Social Amplification of Risk

Aiming at the problem that social stability and order is often seriously threatened by urban flood disasters, a four dimensions model of social amplification of urban flood disaster social risk amplification in Chinese transforming society is proposed on the basis of the theory of social amplification of risk. And then we analyzed the amplification mechanism of urban flood disaster risk. Besides, we studied the evolution mechanism of urban flood disaster risk evolving from individual risk to group events and then to social risk. Furthermore, we applied the amplification and evolution mechanism to the case study of Zhejiang Yuyao flood social risk. Finally, some advices are put forward to respond to urban flood disaster risk.
Spatiotemporal nonlinear dynamics in graded-index multimode fibers

SPATIOTEMPORAL NONLINEAR DYNAMICS IN GRADED-INDEX MULTIMODE FIBERS Uğur Teğin M.S. in Materials Science and Nanotechnology Advisor: Bülend Ortaç May 2018 Spatiotemporal pulse propagation in multimode fibers is generally considered as chaotic. Graded-index multimode fibers reduce the complexity due to its equal spacing of the modal wave numbers which also introduces a periodic self-imaging to the propagating beam. This unique phenomenon affects the coupling between the modes thus graded-index multimode fibers are an ideal testbed to study spatiotemporal pulse propagation. In this thesis, various spatiotemporal nonlinear dynamics studied in graded-index multimode fibers to achieve wavelength conversion, supercontinuum generation triggered by cascaded Raman scattering and to develop a novel all-fiber all-normal dispersion mode-locked laser cavity. In normal dispersion regime, spatiotemporal instability of femtosecond pulses discovered numerically and experimentally by exciting a graded-index multimode fiber with a Ti:Sapphire laser capable to generate 200 fs pulses at 800 nm. With 90 THz frequency shift, Stokes and anti-Stokes sidebands are observed. The signature of spatiotemporal instability which allows the sidebands to inherit the spatial distribution of the pump pulse is observed with the spatial characterization of the generated sidebands. Later a high power laser system with adjustable output parameters is developed as a pump source for spatiotemporal nonlinear pulse propagation studies. By employing this source, with MHz pump pulse repetition rate high power octavespanning supercontinuum generation triggered by cascaded Raman scattering is demonstrated. The results obtained with this novel method is the highest average power and repetition supercontinuum source with a standard graded-index multimode fiber in the literature.
Simultaneous Suppression of IMD 3 and IMD 5 in Space TWT by IMD 3 and 2 HD Signal Injection

This paper presents a signal injection technology showing significant reductions in both 3rd-order and 5th-order intermodulation distortions (IMD3 and IMD5) in space traveling wave tube (STWT). By applying the IMD3 to the IMD5 ratio (TFR) as measures of location, the simultaneous suppressions of IMD3 and IMD5 in TWT are achieved by second harmonic distortion (2HD) and IMD3 injection. According to the research on theoretical analysis and computer simulation, the optimum amplitude and phase parameters of the injected signal for maximum simultaneous suppressions are obtained. Then an experiment system is established based on vector network analyzer, optimumTFR are 2.1 dB and 12.5 dB, respectively, by second harmonic and IM3 injection, and the output powers of IMD3 and IMD5 were decreased. TFR with IMD3 injection is smaller than that with second harmonic injection in STWT, and the experiment system is more straightforward and easy to operate. Thus, the IMD3 injection performs better than that of second harmonic injection to suppress IMD5s for the narrow-band STWT.
Tilburg University On Cones of Nonnegative Quadratic Functions

We derive LMI-characterizations and dual decomposition algorithms for certain matrix cones which are generated by a given set using generalized co-positivity. These matrix cones are in fact cones of non-convex quadratic functions that are nonnegative on a certain domain. As a domain, we consider for instance the intersection of a (upper) level-set of a quadratic function and a half-plane. We arrive at a generalization of Yakubovich's S-procedure result. As an application we show that optimizing a general quadratic function over the intersection of an ellipsoid and a half-plane can be formulated as SDP, thus proving the polynomiality of this class of optimization problems, which arise, e.g., from the application of the trust region method for nonlinear programming. Other applications are in control theory and robust optimization.
The Primordial Inflation Explorer (PIXIE) Mission

The Primordial Inflation Explorer (PIXIE) is an Explorer-class mission to map the absolute intensity and linear polarization of the cosmic microwave background and diffuse astrophysical foregrounds over the full sky from frequencies 30 GHz to 6 THz (1 cm to 50 μm wavelength). PIXIE uses a polarizing Michelson interferometer with 2.7 K optics to measure the difference spectrum between two orthogonal linear polarizations from two co-aligned beams. Either input can view either the sky or a temperature-controlled absolute reference blackbody calibrator. The multimoded optics and high etendu provide sensitivity comparable to kilo-pixel focal plane arrays, but with greatly expanded frequency coverage while using only 4 detectors total. PIXIE builds on the highly successful COBE/FIRAS design by adding large-area polarization-sensitive detectors whose fully symmetric optics are maintained in thermal equilibrium with the CMB. The highly symmetric nulled design provides redundant rejection of major sources of systematic uncertainty. The principal science goal is the detection and characterization of linear polarization from an inflationary epoch in the early universe, with tensor-to-scalar ratio r << 10-3. PIXIE will also return a rich data set constraining physical processes ranging from Big Bang cosmology, reionization, and large-scale structure to the local interstellar medium.
Evaluation of sewage sludge-based compost by FTIR spectroscopy

The aerobic batch composting fermentations of sewage sludge with wood chips and maturity compost as co-composting additives were carried out in an open type lab-scale reactor. Fourier transform infrared spectroscopy (FT-IR) spectroscopy was used to monitor the composting process, evaluate the degradation rate and thus determine the maturity. Although the composition of the input mixture strongly affects the shape of the infrared (IR) spectra, typical bands of components can be selected and used to follow the composting process. The appearance, shape and intensity of the nitrate band at 1384 cm 1 was well pronounced and evident for a sewage sludgebased compost maturity. An increase of the peak ratio 1384 /2925 and decrease of 2925 /1034, 1034 /1384 correlated with the degree of decomposition. For the composting mixture under study the peak ratios 1034 /1384 and 1384 /2925 were more demonstrative. Considering the influence of the composting mixture (components and their ratio) on the shape of the FT-IR spectra the nitrate band at 1384 cm 1 can be overlapped by other absorption bands (e.g. lignin bands in 1300–1400 cm 1 region) thus appearing in the spectra as a shoulder, and therefore the ratios 1384 /2925 and 1034 /1384 become unusable to evaluate the maturity. FT-IR spectroscopy is a quick and useful method to monitor the composting process; however any particular composting mixture needs preliminary studies of the spectra. Consequently, the most appropriate criteria describing the process (e.g. band ratios, shape and intensity of nitrate band) should be selected and the time /peak ratio curves recorded for a compost mixture under study. Afterwards monitoring of the composting process can be based on the comparison of the controls and definite samples. D 2005 Elsevier B.V. All rights reserved.
AN INVESTIGATION OF CORPORATE REAL ESTATE MANAGEMENT OUTSOURCING IN MELBOURNE

Outsourcing of at least some Corporate Real Estate Management (CREM) services has become common business practice over recent years, in Australia and elsewhere, and its adoption continues to spread. The literature suggests several reasons why this has occurred including – cost control, seeking access to skills and technology, and competitive reasons. Several challenges have also been identified such as vicarious liability for service provider actions, loss of internal capabilities, and provider performance. It is some time since outsourcing and in-house CREM arrangements were systematically studied in Australia. This paper reports a qualitative study that investigated current issues around CREM outsourcing arrangements in six Melbourne-based organisations. Six factors that contributed to CREM outsourcing were identified with several organisations reporting multiple contributory factors. The most important factors were cost savings and access to skills, technology and best practice. Similarly, six challenges were identified and also six strategies to overcome those challenges. The most important challenges were communication issues and service provider performance. Strategies to overcome the challenges included improved communication management, and performance management through Key Performance Indicators and regular monitoring. Many of the study’s findings confirm issues and challenges identified in previous studies. This study does show that the issues and challenges are persistent but organisations are aware of them and are taking steps to address them.
Preparation, characterization, and properties of polyurethane-grafted multiwalled carbon nanotubes and derived polyurethane nanocomposites

We incorporated hydroxyl groups into the polyurethane backbone and then used the "grafting to" approach to functionalize the multiwalled carbon nanotubes (MWNTs) via the esterification reaction between MWNTs and segmented polyurethanes (PUs). X-ray photoelectron spectroscopy (XPS) spectra showed that the sidewalls of MWNTs had been functionalized with acid treatment, and the amount of COOH increased with increasing acid treatment time. FTIR spectra further confirmed that PU was covalently attached to the sidewalls of MWNTs. The functionalized acid amount and the grafted PU amount were determined by thermogravimetric analyses (TGAs). Comparative studies based on SEM images of the PU-functionalized and chemically defunctionalized MWNT samples also revealed the covalent coating character. Dynamic mechanical analysis (DMA) of nanocomposite films prepared from PU and PU-functionalized MWNTs showed enhanced mechanical properties and increased soft segment Tg. Tensile properties indicated that PU-functionalized MWNTs were effective reinforcing fillers for the polyurethane matrix.
Corruption and Tax Evasion with Competitive Bribes

In this paper we consider a simple economy where self interested taxpayers may have incentives to evade taxes and to escape sanctions, by bribing public officials in charge for tax collection. The level of monitoring and the level of corruption are endogenously determined assuming that the price for corruption (bribe) sets at a value where expected rents in the public sector are completely dissipated in monitoring costs due to competition among public officials. In the proposed framework, larger fines for evasion will increase tax compliance with ambiguous effects on corruption while larger fine for corruption reduce corruption at the cost of reducing tax compliance. Interestingly, a utilitarian legislator will want to set maximal penalties. Intuitively, preventing corruption through fines is valuable to the planner since it reduces the amount of rent dissipation in the public sector at the cost of decreasing deterrence for the underlying offence (evasion). Finally the shadow value of deterrence is such that the level of public good provided in the economy is smaller than its first best.
S 56-S 64 β-cell apoptosis in type 2 diabetes : quantitative and functional consequences

Type 2 diabetes, the most common form of diabetes in humans, is characterized by impaired insulin secretion paralleled by a progressive decline in β-cell function and chronic insulin resistance. Several authors have showed that in type 2 diabetes there is a reduction of islet and/ or insulin-containing cell mass or volume. Regulation of the β-cell mass appears to involve a balance of β-cell replication and apoptosis but, at the molecular level, pancreatic β-cell loss by apoptosis appears to play an important role in the development of insulin deficiency and the onset and/or progression of the disease. The mechanisms favoring apoptosis in type 2 diabetic pancreatic islets and new potential therapeutic approaches to prevent β-cell death and maintain β-cell mass are discussed. © 2008, Elsevier Masson SAS. All rights reserved.
Ovarian development and changes in the serum vitellogenin levels in the river sculpin, Cottus hangiongensis, during an annual reproductive cycle

Annual changes in the ovarian development and serum vitellogenin concentration were investigated in the river sculpin, Oottus hangiongensis, sampled monthly from a river in southern Hokkaido, Japan. Ovarian development started advancing from summer and continued during the winter months until March with a maximum mean gonadosomatic index (GSI) of 15.99%. Hepatosomatic index (HSI) was also highest in March with a range of 5.13-5.95%. Spawning season usually occurred from April to May. Annual changes in serum vitellogenin level correlated very well with the patterns of GSI and HSI, as well as histological changes of the ovary. However, high serum vitellogenin was maintained in March and April.
Optical design of a compact imaging spectrometer for planetary mineralogy

We present the design of a compact, wide-angle pushbroom imaging spectrometer suitable for exploration of solar system bodies from low orbit. The spectrometer is based on a single detector array with a broadband response that covers the range 400 to 3000 nm and pro- vides a spectral sampling of 10 nm. The telescope has a 24-deg field of view with 600 spatially resolved elements detector pixels. A specially designed convex diffraction grating permits optimization of the signal-to- noise ratio through the entire spectral band. Tolerances and design pa- rameters permit the achievement of high uniformity of response through field and wavelength. The spectrometer performance is evaluated in terms of predicted spectral and spatial response functions and from the point of view of minimizing their variation through field and wavelength. The design serves as an example for illustrating the design principles specific to this type of system. © 2007 Society of Photo-Optical Instrumentation
Analysis of a controversial decision process: the case of the pumped hydro storage power plant Atdorf in Germany

Based on the report for the unit “Metodos Interactivos de Participacao e Decisao A” (Interactive methods of participation and decision A), coordinated by Prof. Lia Maldonado Teles de Vasconcelos and Prof. Nuno Miguel Ribeiro Videira Costa. This unit was provided for the PhD Program in Technology Assessment in 2015/2016.
Podstawy przetwarzania równoległego informacji

W artykule poruszono wybrane podstawowe zagadnienia związane z przetwarzaniem rownoleglym. Przedstawiono glowne obszary zastosowania przetwarzania rownoleglego oraz dokonano podzialu systemow rownoleglych za pomocą klasyfikacji zaproponowanej przez M. Flynna. Scharakteryzowano cztery rodzaje przetwarzania: SISD (Single Instruction Stream – Single Data Stream), SIMD (Single Instruction Stream – Multiple Data Stream), MISD (Multiple Instruction Stream – Single Data Stream) oraz MIMD (Multiple Instruction Stream – Multiple Data Stream). Opisano rowniez trzy architektury pamieciowe: MIMD-SM (Shared Memory), MIMD-DM (Distributed Memory) oraz MIMD-HDSM (Hybrid Distributed-Shared Memory). W ponizszym opracowaniu przedstawiono ponadto ogolny podzial architektury komputerow rownoleglych. Artykul konczą informacje na temat rodzajow rownoleglości przetwarzania danych na przykladzie rownoleglości homogenicznej i heterogenicznej.