Miracle-dz/UniFAR-FTUs huggingface dataset:
Cell biometrics based on bio-impedance measurements

Many biological parameters and processes can be sensed and monitored using their impedance as marker (Grimmes, 2008), (Beach. 2005), (Yufera, 2005), (Radke, 2004), with the advantage that it is a non-invasive, relatively cheap technique. Cell growth, cell activity, changes in cell composition, shapes or cell location are only some examples of processes which can be detected by microelectrode-cell impedance sensors (Huang, 2004) (Borkholder, 1998). The electrical impedance of a biological sample reflects actual physical properties of the tissue. In frequency dependent analyses, the -dispersion ranging from kilohertzs to hundreds of megahertzs (Schwan, 1957) is mainly affected by the shape of the cells, the structure of the cell membranes, and the amount of intra and extra cellular solution. Electrical bio-impedance can be used to assess the properties of biological materials (Ackmann, 1993) involved in processes such as cancer development (Giaever, 1991), (Blady, 1996), (Aberg, 2004); because the cells of healthy tissues and cancer are different in shape, size and orientation, abnormal cells can be detected using their impedance as a marker. Among Impedance Spectroscopy (IS) techniques, Electrical Cell-substrate Impedance Spectroscopy (ECIS) (Giaever, 1986), based on two-electrode setups, allows the measurement of cell-culture impedances and makes it possible to determine the biological condition (material, internal activity, motility and size) of a cell type and its relationship with the environment; for example, the transfer flow through the cell membrane (Wang, 2010). One of the main drawbacks of the ECIS technique is the need to use efficient models to decode the electrical results obtained. To efficiently manage bio-impedance data, reliable electrical models of the full system comprising electrodes, medium and cells are required. Several studies have been carried out in this field (Giaever, 1991), (Huang, 2004), (Borkholder, 1998), (Joye, 2008), (Olmo, 2010), some of them employing Finite Element simulation (FEM) for impedance model extraction. These models are the key for matching electrical simulations to real system performances and hence for correctly decoding the results obtained in experiments.
SELENIUM IN POULTRY NUTRITION: LESSONS FROM RESEARCH AND WILD NATURE

Chick embryo tissues contain a high proportion of highly polyunsaturated fatty acids in the lipid fraction and therefore need antioxidant defence (Surai, 1999). It is well accepted that maternal diet composition is a major determinant of antioxidant system development during embryogenesis and in early postnatal development. The antioxidant system of the newly hatched chick includes the fat-soluble antioxidants, vitamin E and carotenoids, watersoluble antioxidants ascorbic acid and glutathione as well as antioxidant enzymes SOD, GSH-Px, catalase and selenium (Surai, 2002). Vitamin E and carotenoids are transferred from feed into egg yolk and further to embryonic tissues. Selenium content of the egg also depends on its concentration in the hen's diet, and also on the form of dietary Se used, since organic Se is more efficiently deposited in the egg yolk (Surai, 2006).
Comparative assessment of two distributed watershed models with application to a small watershed

Distributed watershed models are beneficial tools for the assessment of management practices on runoff and water‐induced erosion. This paper evaluates, by application to an experimental watershed, two promising distributed watershed‐scale sediment models in detail: the Kinematic Runoff and Erosion (KINEROS‐2) model and the Gridded Surface Subsurface Hydrologic Analysis (GSSHA) model. The physics behind each model are to some extent similar, though they have different watershed conceptualizations. KINEROS‐2 was calibrated using three rainfall events and validated over four separate rainfall events. Parameters estimated by this calibration process were adapted to GSSHA. With these parameters, GSSHA generated larger and retarded flow hydrographs. A 30% reduction in both plane and channel roughness in GSSHA along with the assumption of Green‐Ampt conductivity KG‐A = Ks, where Ks is the saturated conductivity, resulted in almost identical hydrographs. Sediment parameters not common in both models were calibrated independently of KINEROS‐2. A comparative discussion of simulation results is presented. Even though GSSHA's flow component slightly overperformed KINEROS‐2, the latter outperformed GSSHA in simulations for sediment transport. In spite of the fact that KINEROS‐2 is not geared toward continuous‐time simulations, simulations performed with both models over a 1 month period generated comparable results. Copyright © 2006 John Wiley & Sons, Ltd.
THE COLOR OF ENVIRONMENTAL NOISE

Biological populations are strongly influenced by the random variation in their environment. The spectrum of frequencies in noise is particularly important to dynamics and persistence. Here we present an analysis of the variance spectra of a wide variety of long-term time series of environmental variables. Spectra were well approximated by the inverse power law 1/fβ within the appropriate range of frequencies f; however, the majority of spectra were “flattened” at low frequencies. With some qualification we found the spectral exponents (β) to corroborate an earlier suggestion that terrestrial noise tends to be “white” (β < 0.5), while marine environments tend to be “red” (β ≈ 1) or “brown” (β ≈ 2). As well, we found a tendency for whiter noise in temperate latitudes than in either high or low latitudes. These results have wide-ranging consequences for ecosystem fragility and species conservation.
Unified nonlinear theory of spontaneous and forced helical resonant MHD states

It is shown that the theory of the nonlinearly saturated ideal internal kink mode by Rosenbluth et al. [Phys Fluids 16(11), 1894 (1973)] can be used to find the fully nonlinear ideal plasma response to an externally applied resonant magnetic perturbation. It is also demonstrated that the solution leads to a jump in the rotational transform across the resonant surface caused by a zonal current sheet. Its amplitude scales linearly with the plasma perturbation despite the nonlinearity of the solution. This confirms a recent conjecture that three-dimensional MHD equilibria with nested magnetic surfaces generally contain discontinuities in the rotational transform [J. Loizu et al., Phys Plasmas 22(9), 090704 (2015)]. It also lends support to Parker's long-standing suggestion that “almost all” MHD equilibria possess current sheets.
Structure and Properties of High-Hardness Silicide Coatings on Cemented Carbides for High Temperature Applications

Cemented tungsten carbides (cWCs) are routinely used in mining and manufacturing but are also candidate materials for compact radiation shielding in fusion power generation. In both applications, there is a need for oxidation to be minimized at operating temperatures. In a recent study, Si-based coatings deposited by pack cementation were demonstrated to improve the oxidation resistance of cWCs by up to a factor of 1000. In this work, these coatings are further characterized, with the focus on growth kinetics, phase composition, and hardness. By combining quantitative X-ray diffraction, electron microscopy, and instrumented micro-indentation, it is shown that the coating layer has a 20% higher hardness than the substrate, which is explained by the presence of a previously-unknown distribution of very hard SiC laths. To interpret the coating stability, a coating growth map is developed. The map shows that the structure is stable under a broad range of processing temperatures and cWC compositions, demonstrating the wide-ranging applicability of these coatings.
Smoking Prevalence and Associated Factors among Students of Balikesir University

Objective: This study aimed to investigate the smoking prevalence and associated factors among the students of Balikesir University and determine the level of nicotine dependence in smokers. Methods: Six faculties and two graduate schools located at the Balikesir University campus were enrolled. The cluster method was used as the sampling method. To observe the rates of smoking initiation while studying at the university, first-year and final year students were compared. Results: A total of 1096 students were enrolled, with a mean age of 20.4±2.2 years. The regular smoking prevalence rate was 25.5%, occasi- onal smoking rate was 9.5%, alcohol consumption rate was 28.0%, and drug abuse rate was 5.0%. The mean age for attempting to smoke was 16.6±2.2 years. The leading causes of smoking were curiosity, spiritual space, affection, and to comply with friends. According to the Fagerstrom questionnaire, the level of nicotine dependence was low in 53.0% of the participants, moderate in 8.7%, and high in 28.4%. The average smoking prevalence rate was 23.6% in first-grade students, whereas it was 44.8% in last-grade students. The factors that influence smoking were as follows: being in the last grade, mother, siblings, and friends who smoke, higher allowance, use of alcohol and drugs. Smoking was found to be more prevalent among males. Conclusion: Last-grade students had a higher smoking prevalence rate than the first-grade students. Family, social environment, and smoking behavior of friends have an influence on smoking. All risk factors, including past history and university period, should be considered together in tobacco control.
VALIDITY AND AUTOMATIC EVALUATION 1 The Effect of the Validity of Co-occurrence on Automatic and Deliberate Evaluation

Co-occurrence of an object and affective stimuli does not always mean that the object and the stimuli are the same valence (e.g., false accusations that Richard is a crook). Contemporary theory posits that information about the (in)validity of co-occurrence has stronger influence on deliberate than automatic evaluation. However, available evidence supports that hypothesis only when the (in)validity information is delayed. Further, the existing evidence is open to alternative methodological accounts. In six high-powered experiments (total N = 1,750), we modified previous procedures to minimize alternative explanations and examine whether delayed (in)validity information has discrepant effect on automatic versus deliberate evaluation. Casting doubt on the generality of the hypothesis, we found more sensitivity of deliberate than automatic evaluation to delayed validity information only when automatic evaluation was measured with the Implicit Association Test and not with the Evaluative Priming task or the Affective Misattribution Procedure.
Facebook Psychology: Popular Questions Answered by Research

Since its launch in February 2004, Facebook has become one of the most popular websites in the world, as well as a widely discussed media phenomenon. Unsurprisingly, the Facebook revolution has inspired a wealth of psychological study, which is growing exponentially. In this article, we review the recent empirical research into some of the key psychological themes concerning Facebook use. The review is organized according to common questions about Facebook culture and use being posed by academics and social commentators alike. These questions are grouped under three major themes, namely: (a) antecedents of Facebook use; (b) how individuals and corporations use Facebook; and (c) psychological outcomes or effects of Facebook use. To this end, we review over 100 recent publications (mostly empirical, peer-reviewed journal articles). We conclude by providing some suggestions for future psychological research in this rapidly expanding area of popular media cultur
Alterations In Liver Function Tests Following Laparoscopic Cholecystectomy

Background: The pneumoperitoneum and the resulting high intraabdominal pressure may have several systemic effects including splanchnic ischemia. Disturbances of liver function tests following laparoscopic cholecystectomy have been previously reported although their etiology still remains uncertain. This prospective study was planned to explore further the incidence and significance of this alteration. Materials and Methods: Over a two-year period, laparoscopic cholecystectomy was performed in 262 consecutive patients with symptomatic cholelithiasis. Total and indirect bilirubin (TB and IB), aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), and a-glutamyl-transpeptidase (γ-GT) were tested preoperatively as well as 24 hours following surgery. Strict exclusion criteria were adopted in order to eliminate any known cause of possible liver function disturbances. Results: Totally 198 patients fulfilled the criteria and were included in the study. A statistically significant increase of TB, IB, ASP, ALT and a significant decrease of ALP were noted postoperatively, whereas γ-GT showed slight not significant elevation. A 48.4% mean increase of TB value, duplication of IB in 16% of cases, and an up to 100% mean increase of both ASP and ALT values were seen. Conclusion: Transient alterations of hepatic enzymes are frequently observed after uneventful laparoscopic cholecystectomy, presumably attributed to the elevated intraabdominal pressure of the pneumoperitoneum. Further studies could enlighten the exact pathogenetic mechanism.
One-dimensional steering from keychain models

If a measurement is made on one half of a bipartite system then, conditioned on the outcome, the other half achieves a new reduced state. If these reduced states defy classical explanation — that is, if shared randomness cannot produce these reduced states for all possible measurements — the bipartite state is said to be steerable. Classifying the steerability of states is a challenging problem even for low dimensions. In the case of two-qubit systems a criterion is known for T -states (that is, 2-qubit states that have a maximally mixed marginal on the first subsystem) under projective measurements. In the current work we introduce the concept of keychain models — a special class of local hidden state models — which allows us to study steerability outside the set of T -states. We use keychain models to give a complete classification steering within the set of partially entangled Werner states. We also give a partial classification of steering for states that arise from applying uniform noise to pure two-qubit states.
Frugality Is Hard to A ord

Households commonly utilize strategies that provide long-term savings on everyday purchases in exchange for an increase in their short-term expenditures. They buy larger packages of non-perishable goods to take advantage of bulk discounts, and accelerate their purchases to take advantage of temporary discounts. Even though low-income households are more incentivized to save, they are less likely to take advantage of these money-saving strategies. We provide causal evidence that liquidity constraints inhibit low-income households' ability to do so. ∗A. Ye3im Orhun (aorhun@umich.edu) is Assistant Professor of Marketing, Ross School of Business; 701 Tappan Street, Ann Arbor, MI, 48109. Mike Palazzolo (mpalazzolo@ucdavis.edu) is Assistant Professor of Marketing, UC Davis Graduate School of Management; One Shields Avenue, Davis, CA, 95618. Author order is alphabetical. The authors wish to thank Dan Ackerberg, Rajeev Batra, Stephanie Carpenter, Fred Feinberg, Linda Hagen, Tom Kinnear, Aradhna Krishna, John Lynch, Kanishka Misra, Jenny Olson, Beatriz Pereira, Eric Schwartz, S Sriram, the marketing faculty at the Leavey School of Business, and the attendees of the 2016 Boulder Summer Conference on Consumer Financial Decision Making for their assistance and suggestions. We are grateful to the Kilts Center for Marketing at Chicago Booth for providing us with the data. A.Ye3im Orhun gratefully acknowledges research funding provided by the 3M Company.
Constraints on Heterogeneous Galactic Chemical Evolution from Meteoritic Stardust

Meteorites contain presolar grains that formed in stars prior to solar system formation and preserve a record of stellar and galactic evolutionary processes. We consider a stochastic model of heterogeneous mixing of supernova ejecta into a homogeneous interstellar medium (ISM), first presented by Lugaro et al. The predictions of the model for Si, Ti, and O isotopic ratios are compared with the compositions of presolar SiC, Al2O3, and MgAl2O4 grains. Model parameters that reproduce the range of Si isotopic ratios in SiC grains fail to reproduce the strong observed correlation between SiC Si and Ti isotopic ratios and the range of 18O/16O ratios in the oxide phases. The Si-Ti correlation in SiC implies that heterogeneous mixing of SNe ejecta can account for at most 40% of the range of grain isotopic compositions. This result further implies that the ejecta from diverse SNe are well mixed to the percent level in the ISM, consistent with recent results based on stellar and interstellar abundance measurements. However, the presolar grain data provide much more stringent limits on the range of relative element ratios (e.g., Mg/Fe) than can be derived from astronomical observations. The large scatter in metallicity observed for disk stars of a given age cannot be explained by heterogeneous mixing of stellar ejecta. The range of 18O/16O ratios measured in presolar oxide grains implies either that they formed in stars with a wider range of metallicities than the SiC progenitor stars or that their parent stars experienced moderate amounts of cool bottom processing.
Mechanical and Pharmacologic Applications of Artificial Insemination in Ewes

Artificial insemination (AI) is the keys to the efficient transfer of genetical knowledge from rams to ewes and to ensure proper productive traits of theirs. The efficient insemination of high-quality semen is very important in an artificial insemination of ewe. Artificial insemination is also part of the biotechnological studies. The insemination process itself may, in fact, cause of poor fertility or reduce of frozen semen quality. Insemination process is regulated by a complex interplay of inseminator, semen, and genital tract structure of ewe. Although there is general agreement that cervix is of critical importance in the initiation and improvement of semen in mammals during insemination, the role of cervical canal in the regulation of frozen sperm transport in the ewes is stil problematic. Because of the size and shape of the external os and the tortuous structure of the cervical canal, intrauterine insemination of ewes generally carries out with frozen sperm. Transcervical AI is applied using specially designed inseminating equipment and manipulation of the cervix using forceps. The number of reports in which transcervical deposition of semen has been achieved is relatively low and there are concerns about the potential trauma involved. The role of cervix in the transport of frozen sperm in the ewe is not entirely clear. Determination of the causes for the generally low fertility obtained following cervical deposition of frozen semen is still an important subject for AI procedure for achieving acceptable pregnancy rates in ewes. A previous work observed that oxytocin treatment induced cervical dilation and decreased the difficulty of passing a catheter through the cervix and into the uterus. It decreases in fertility have been associated with cervical manipulation. For a long time, the standard procedure with fresh semen when inseminating ewes has been to deposit the semen in the external os of the cervical canal. However, recently several groups have reported differences in pregnancy rates when ewes were bred with artificial insemination supported by air pomp, oxytocin, transcervical, etc. There are many methods of artificial insemination of sheep. Specialization is concentrating or limiting one’s focus to part of the whole methods of artificial insemination. Studies are guiding to the acquisition of new practice knowledge and skills. Artificial insemination is a powerful tool that provides common genetic information and deep insight into the insemination process that is at the heart of every embryo formation.
Serum survey for antibodies to coronavirus , herpesvirus , calicivirus , and parvovirus in domestics cats from Rio Grande do Sul , Brazil

Recebido em 17 de outubro de 2008 Aceito em 19 de março de 2009 *Autor para correspondência (correspoonding autor) E-mail: sohubner@yahoo.com. br In Brazil, data regarding the occurrence of feline infections by Feline coronavirus (FCoV), Feline herpesvirus (FHV-1), Feline calicivirus (FCV), and Feline parvovirus (FPV) are scarce (Weiblen et al., 1988; Oliveira et al., 2003; Ruthner et al., 2005), and to this moment there are no scientific reports made in the region of Pelotas, RS, Southern Brazil. FCoV is associated to the development of mild enteritis (Vennema et al., 1998; Hartmann, 2005) or, when FCoV mutants are originated, it can lead to the development of a feline infectious peritonitis (FIP), a progressive systemic disease with a wide spectrum of clinical signs and high mortality rate (Hartmann, 2005). FHV-1 and FCV are agents causing mainly upper respiratory tract diseases, but cats can be infected by these agents without showing clinical signs and become persistent carriers (Maggs et al., 1999; Radford et al., 2007). FPV is highly contagious, inducing an acute disease characterized by leukopenia, fever, depression, dehydration, diarrhea, and vomiting (McKnight et al., 2007).
Length-weight relationship and condition factor of therncritically endangered ﬁsh ofGeso,Hemibagrus wyckii (Bleeker, 1858) bagridaernfrom Kampar Kanan River, Indonesia

The studies on length-weight relationships (LWR) and condition factors (K) of Geso (Hemibagrus wyckii, Bleeker, 1858, Bagridae) in Kampar Kanan River, Riau, Indonesia was conducted from February to September 2015. A total of 99 specimens were collected from different sample stations using different types of trapsnets and fishing pole. The pooled length–weight regression equation (Log W = 6.1510+3.4536 TL, r = 0.936), and also the length-weight equations of males, females and juveniles (Log W = -4.2274+2.6646 log TL (r=0.94), Log W = -3.4342 + 2.4225 log TL (r = 0.931) and Log W = 2.1968 + 3.0405 log TL (r = 0.913) respectively), indicate positive correlation between length and weight in H.wyckii. The mean values condition factor were ranged from 0.692±0.06 to 2.496±0.29, variations in the condition factor were found to be influenced by the gonadal maturity and spawning season.
Expression of c-erbB-2 and Cyclooxygenase-2 in Pancreatic Ductal Adenocarcinoma

Background : Carcinoma of the pancreas is a fatal malignant disease with limited therapeutic options. Cyclooxygenase-2 (COX-2) and c-erbB-2 are known to be involved in the carcinogenesis, differentiation and invasiveness of various neoplasms. We studied the immunohistochemical expressions of c-erbB-2 and COX-2 and the correlation between these expressions and the clinicopathologic parameters and the relation between the expressions. Methods : Immunohistochemical staining for c-erbB-2 and COX-2 were performed on the paraffin embedded sections of 36 cases of surgically resected ductal adenocarcinoma of the pancreas and 10 cases of non-neoplastic pancreas tissue. Results : The non-neoplastic control group showed a c-erbB-2 expression in the acini (8/10) and ducts (2/10), and a COX-2 expression in the acini (6/10) and ducts (3/10). The overexpression of c-erbB-2 was observed in 58% (21/36) of the carcinoma specimens. No significant correlation was found between c-erbB-2 and age, gender, tumor size, gross type, histologic grade, vascular invasion, perineural invasion, lymph node metastasis, and the TNM stage. The overexpression of COX-2 was observed in 41.7% (15/36) of the carcinoma specimens. The COX-2 expression was significantly high in the lymph node metastasis group (p<0.05), but it was not correlated with the other clinicopathologic parameters. Also there was no significant correlation between the c-erbB-2 and COX-2 expressions. Conclusions : In pancreatic ductal adenocarcinomas, c-erbB-2 and COX-2 were frequently overexpressed, and COX-2 overexpression was correlated with lymph node metastasis.