Miracle-dz/UniFAR-FTUs huggingface dataset:
Troubleshooting High Bacteria Counts in Bulk Milk: What needs cleaning, the machine or the cows?

I have had a professional fascination with bulk tank cultures for the past 20 years. This odd obsession developed from my interest in the mechanics of milking machine cleaning and sanitation. Over the course of the past two decades I have been involved in numerous situations in which bulk tank bacteria counts were higher than desired, most often approaching or exceeding the legal limit. A remarkable number of these crisis situations share a common thread: an argument between the milking machine service technician (or cleaning chemical supplier) and the farmer over whether the cause of the high bacteria counts was a failure in the cleaning system or the excessive bacteria load from milking wet/dirty cows. A very crude estimate based on my memory of interesting cases is that there are not overwhelming odds for either of these 2 primary sources, but that when the legal limit is being exceeded, it is common that both sources contribute to the crisis situation. In this paper I will provide the tools that I have found most useful and effective in diagnosing the source of bacteria in bulk tanks, which in turn, will allow the investigator to focus intervention in the right place to solve the problem.
Food, Class, and Health: The Role of the Perceived Body in the Social Reproduction of Health

The association between social class and cardiovascular health is complex, involving a constant interplay of factors as individuals integrate external information from the media, health care providers, and people they know with personal experience to produce health behaviors. This ethnographic study took place from February 2008 to February 2009 to assess how cardiovascular health information circulating in Kansas City influenced a sample of 55 women in the area. Participants were primarily Caucasian (n = 41) but diverse in terms of age, income, and education. Themes identified in transcripts showed women shared the same idea of an ideal body, young and thin, and associated this perception with ideas about good health, intelligence, and morality. Transcript themes corresponded to those found at health events and in the media that emphasized individual control over determinants of disease. Women's physical appearance and health behaviors corresponded to class indicators. Four categories were identified to represent women's shared beliefs and practices in relation to class, cardiovascular disease, and obesity. Findings were placed within an existing body of social theory to better understand how cardiovascular health information and women's associated beliefs relate to health inequality.
Functional disability in medication management and driving among individuals with HIV: A 1-year follow-up study

Approximately 50% of individuals with HIV report cognitive deficits that can affect social or occupational functioning. The present study used a longitudinal design (1 year) to examine the relationship between cognitive factors and incidental functional deficits in medication management and driving ability among a cohort of 101 HIV+ participants. Participants were classified into groups of functionally “stable” and “disabled” for each laboratory-based functional task (i.e., Medication Management Task–Revised, MMT–R, and PC-based driving simulator). We hypothesized that participants who exhibited a functional deficit in either MMT–R or driving at follow-up assessment would demonstrate significantly poorer baseline cognitive performance at study entry than participants who remained functionally stable. As hypothesized, participants who demonstrated significantly lower baseline performance in learning/memory and executive functioning also demonstrated functional disability on the MMT–R at follow-up when compared to functionally stable participants. Poor baseline performance in speed of information processing was associated with a deficit in driving ability at follow-up assessment. Our results suggest that lower baseline cognitive functioning predicts downstream functional disability, and that deficits in learning/memory and information processing speed are particularly predictive of deficits in medication management and driving ability.
Full-Duplex Small Cells for Next Generation Heterogeneous Cellular Networks: A Case Study of Outage and Rate Coverage Analysis

Full-duplex (FD) technology is currently under consideration for adoption in a range of legacy communications standards due to its attractive features. On the other hand, cellular networks are becoming increasingly heterogeneous as operators deploy a mix of macrocells and small cells. With growing tendency toward network densification, small cells are expected to play a key role in realizing the envisioned capacity objectives of emerging 5G cellular networks. From a practical perspective, small cells provide an ideal platform for deploying FD technology in cellular networks due to its lower transmit power and lower cost for implementation compared with the macrocell counterpart. Motivated by these developments, in this paper, we analyze a two-tier heterogeneous cellular network, wherein the first tier comprises half-duplex macrobase stations and the second tier consists of the FD small cells. Through a stochastic geometry approach, we characterize and derive the closed-form expressions for the outage probability and the rate coverage. Our analysis explicitly accounts for the spatial density, the self-interference cancellation capabilities, and the interference coordination based on enhanced inter-cell interference coordination techniques. Performance evaluation investigates the impact of different parameters on the outage probability and the rate coverage in various scenarios.
Irrational beliefs and depression in adolescence.

Based on a cognitive-behavioral perspective, this study explored the presence of different categories of irrational beliefs in relation to depressive symptoms in a sample of 11- to 18-year-old adolescents. Results showed an increase in depressive symptoms from the beginning to the end of adolescence. Girls demonstrated a higher level of depression, while boys became less depressed once they entered adolescence. Results demonstrated no fluctuation in global scores on irrationality as a function of age or sex. However, the "low frustration tolerance" category of irrational beliefs showed a decrease with age (i.e., the 11- to 12-year-old group expressed a significantly higher rate than did the older groups. On the other hand, mean scores showed an increase with age in the category of "self-directed should," although this did not reach a statistically significant level. Low and high depressed subjects distinguished themselves on the global irrationality score. Two types of irrational beliefs differentiated the high and low depressive groups. High-depressive adolescents demonstrated a stronger tendency to dramatize situations. In addition, it appears that adolescents may think in a way that makes them less tolerant of frustration than do nondepressive adolescents. These findings were consistent for both measures of depression. Another category of irrational beliefs which showed an increase in the depressive sample is the "self-directed should. " However, it was present for only one of the two measures of depression. Depressive adolescents tended to make unrealistic demands on themselves. Results are discussed in the context of the application of cognitive models of therapy in the treatment of depression in adolescent populations.
Lamina-specific expression of adhesion molecules in developing chick optic tectum

The optic tectum is the major synaptic target of retinal axons in birds. In the chick, retinal ganglion cell axons enter the optic tectum through a superficial lamina (the stratum opticum), extended branches into deeper laminae, and arborize in specific “retinorecipient” laminae, where they form synapses. Studies using an organotypic culture system have provided evidence that the tectum bears a series of distinct, lamina-specific, cell surface-associated cues that direct these axonal behaviors (Yamagata and Sanes, 1995). Here, we have used a panel of antibodies to 30 membrane and matrix components to ask whether known adhesive molecules are distributed in lamina-specific patterns. Among many spatiotemporal pattern of expression documented, three were particularly noteworthy: (1) The cell adhesion molecules NgCAM/L1 and TAG-1/axonin-1 were concentrated in the stratum opticum. (2) SC1/JC7/DM- GRASP/BEN, N-cadherin, neuropilin, polysialylated N-CAM, and glycoconjugates recognized by the lectin VVA-B4 were concentrated in retinorecipient laminae. (3) Neurofascin, tenascin-C/cytotactin, and a matrix molecule defined by the “Sigma” antibody were present at highest levels in areas that border the retinorecipient laminae. Some members of each group (NgCAM/L1, TAG-1/axonin, SC1/JC7, polysialic acid, VVA-B4- receptors, and neurofascin) appeared on schedule and in lamina- restricted patterns in tecta from embryos that had been enucleated before retinal axons left the eye. Thus, molecules in these three categories could provide signals to retinal axons that promote extension through the stratum opticum, induce arborization or synaptogenesis in retinorecipient laminae, and prevent sprouting into adjoining laminae. Interestingly, N-cadherin accumulated in retinorecipient laminae only following the onset of synapse formation, and failed to accumulate in enucleated tecta. Immunoelectron microscopy of normal tecta demonstrated the presence of N-cadherin in the synaptic cleft, suggesting a role for this molecule in synaptic maintenance.
N-Methyl-isobutyl-amiloride Ameliorates Brain Injury When Commenced Before Hypoxia Ischemia in Neonatal Mice

Underphysiologic conditions, brain intracellular pH (pHi) is maintained at 7.03. Rebound brain intracellular alkalosis has been observed in experimental models and adult stroke after hypoxia/ischemia (HI). In term infants with neonatal encephalopathy (NE), an association exists between the magnitude of brain alkalosis and neurodevelopmental outcome, and there is increasing evidence to suggest that alkalosis may be deleterious to cell survival. Activation of the Na+/H+ exchanger (NHE) is thought to be responsible for the rapid normalization of pHi and rebound alkalosis after reperfusion. We hypothesized that N-methyl-isobutyl-amiloride (MIA), an inhibitor of the NHE, would reduce brain injury in a model of neonatal HI. Seven-day-old mice underwent left carotid artery occlusion followed by exposure to 8% oxygen for 30 min (moderate insult) or 1 h (severe insult). Animals received MIA or saline 8 hourly starting 30 min before HI. Outcome was determined at 48 h by measuring viable tissue in the injured hemisphere (severe insult) or injury score and TUNEL staining (moderate insult). After the severe insult, MIA had a significant neuroprotective effect increasing forebrain tissue survival from 44% to 67%. After the moderate insult, damage was localized to the hippocampus where treatment resulted in a significant reduction in injury score and in TUNEL-positive cells. MIA was also shown to have a significant overall neuroprotective effect based on injury score after the moderate insult. Amiloride analogues are neuroprotective when commenced before HI in a mouse model.
Application of an combination forecasting modal in logistics demand

Analyses the influence factors of logistics demand, make use of regression analyses, grey forecasting and neural network to construct single forecasting model. For some limitations existing in the single models, this paper put forward the combination-forecasting model for logistics demand based on the least error absolute value. Verify the modal with concrete example. The result of error analyses shows that it considerably improves precision of forecast and manifests the validities for forecasting of logistics demand.
Factors associated with depressive symptoms among older adults living alone: An analysis of sex difference

Objectives: The aim of this study was to explore the prevalence of depressive symptoms and the risk factors that correlated with depressive symptoms among elders living alone. Methods: A cross-sectional design was implemented. The sample consisted of 117 women and 75 men aged 65 and older who living alone in Tainan, Taiwan. The Chinese version of Center for Epidemiological Studies Depressive Symptoms Scale was adopted to assess depressive symptoms. Logistic regression analyses were employed to determine the risk factors of depressive symptoms in the elderly women and men living alone. Results: Results of this study showed that the elderly women had a 1.6-fold greater prevalence of depressive symptoms than did men. Women who were aged 85 and above, and less social support, had a significantly higher occurrence rate of depressive symptoms. The risk factors for depressive symptoms in elderly men living alone included educational level, religious beliefs, self-rated health status, number of chronic illnesses, and social support. Conclusions: Healthcare providers should reflect the sex difference on risk factors of depressive symptoms when planning mental health services for the elderly population.
POSSUM scoring for laparoscopic cholecystectomy in the elderly

Background: Physiological and operative severity score for the enumeration of mortality and morbidity (POSSUM) scoring is a validated scoring system in the audit of surgical outcomes; however, evaluation of this system has mostly been applied to open surgical techniques. The present study examines the validity of POSSUM in predicting morbidity and mortality in patients undergoing laparoscopic cholecystectomy (LC) with the recognized risk factor for postoperative mortality of advanced age.
A cross-sectional study of ownership of backyard poultry in two areas of Palmerston North, New Zealand

Abstract AIMS: To determine the proportion of residential land parcels with backyard poultry in an urban and urban-rural fringe area of provincial New Zealand. To document key husbandry and biosecurity practices of owners of backyard poultry, and to identify factors that might assist animal health authorities in locating backyard poultry flocks in the event of an infectious disease emergency. METHODS: A cross-sectional survey was undertaken, in which residents of 449 land parcels in an urban and urban-rural fringe area within and adjacent to the city of Palmerston North, respectively, were visited between February and November 2006. Residents were asked if backyard poultry were kept on the premises. Details recorded for those that kept poultry included the type and number of birds kept, and details of management and biosecurity practices. The geographical distribution of poultry-positive land parcels was assessed for evidence of spatial clustering. RESULTS: Backyard poultry were kept on 3.5 (95% CI=2.15.0)% of land parcels; 1.6 (95% CI=0.7-3.4)% in the urban area and 18.9 (95% CI= 11.6–29.3)% in the urban-rural fringe area. There were no significant clusters of poultry-positive land parcels in either area. On all poultry-positive parcels birds were allowed, for at least a portion of the day, to range freely over the property. Three poultry-positive land parcels were within a distance of 1 km of a commercial poultry enterprise in the urban-rural fringe area. Most owners of backyard poultry used feed prepared commercially. CONCLUSIONS: The prevalence of ownership of backyard poultry in this area of New Zealand was low, and varied according to classification of the land, viz urban, or urban-rural fringe. The close proximity of backyard flocks to the single commercial enterprise in the urban-rural fringe area reiterates the importance of strict biosecurity measures on commercial farms. In the event of an infectious disease emergency, it is proposed that a sampling frame of owners of backyard poultry might be rapidly obtained by contacting suppliers of commercial feed.
Emotion regulation mediates age differences in emotions

Objectives: This study aimed at testing the proposition of socioemotional selectivity theory whether older people would use more antecedent-focused emotion regulatory strategies like cognitive reappraisal but fewer response-focused strategies like suppression. It also aimed at investigating the mediating role of emotion regulation on the relationship between age and emotions. Method: The sample consisted of 654 younger and older adults aged between 18 and 64. Results and conclusion: Results showed that age was significantly associated with positive emotions and cognitive reappraisal. No difference was found in negative emotions and suppression between younger and older adults. Cognitive reappraisal partially mediated the effect of age on positive emotions. Findings of this study contribute to our understanding of the underlying mechanism of age variations in emotional experiences.
Differences in Symptom Distress Based on Gender and Palliative Care Designation Among Hospitalized Patients.

PURPOSE To explore patient-reported symptom distress in relation to documentation of symptoms and palliative care designation in hospital inpatients. DESIGN This cross-sectional study analyzed data from 710 inpatients at two large hospitals in Sweden using the Edmonton Symptom Assessment Scale and the Memorial Symptom Assessment Scale. Chart reviews focused on nurses' and physicians' symptom documentation and palliative turning point. METHODS Descriptive statistics were calculated for all variables and provided summaries about the sample. Patients were grouped according to gender, age, palliative care designation, and symptom documentation. The t test and chi-square test were used to calculate whether symptom distress varied between groups. A two-way analysis of variance was conducted for multiple comparisons to explore the impact of gender and age on mean symptom distress. FINDINGS Females reported higher levels of symptom distress than did males related to pain, fatigue, and nausea. When comparing symptom distress between males and females with documentation pertaining to symptoms, there were significant differences implying that females had to report higher levels of symptom distress than males in order to have their symptoms documented. CONCLUSIONS Females need to report higher levels of symptom distress than do males for healthcare professionals to identify and document their symptoms. It can be hypothesized that females are not receiving the same attention and symptom alleviation as men. If so, this highlights a serious inequality in care that requires further exploration. CLINICAL RELEVANCE Considering that common reasons why people seek health care are troublesome symptoms of illness, and that the clinical and demographic characteristics of inpatients are changing towards more advanced ages with serious illnesses, inadequate symptom assessment and management are a serious threat to the care quality.
Six-month stability of psychiatric diagnoses in first-admission patients with psychosis.

OBJECTIVE The short-term diagnostic stability of schizophrenic and other psychotic disorders was examined in first-admission patients, with attention to the principal reasons for diagnostic change. METHOD Hospitalized first-admission patients (N = 278) participating in an epidemiologic study were interviewed at baseline and after 6 months with the Structured Clinical Interview for DSM-III-R. A best estimate diagnosis was made at both time points with the use of all available sources of information. Reasons for changes in diagnosis were determined by two psychiatrists. RESULTS Affective psychosis and schizophrenic disorders were relatively stable broad diagnostic categories over the 6-month period, with 86.5%-88.9% of the patients remaining in the same category, although findings for specific diagnoses within these categories ranged from 61.5% to 85.7%. The groups with unknown and nonspecific diagnoses showed less stability; the diagnoses of more than one-third of these patients remained unknown or nonspecific at the 6-month evaluation. If the 6-month diagnoses are used as the research standard, somewhat lower percentages of patients received the same diagnoses at baseline. Forty-three percent of the changes in diagnosis were attributed to the clinical course of illness; the rest were attributed to the diagnostic process itself. CONCLUSIONS A longitudinal diagnostic assessment based on multiple sources of information is crucial for categorizing first-admission psychotic patients, particularly those who do not initially fit into a DSM-III-R category. The short-term stability of a diagnosis is a function of multiple factors, including the changing clinical picture, additional sources of information, and new interpretations of original data.
Hysteresis Model Predictive Control for High-Power Grid-Connected Inverters With Output LCL Filter

Hysteresis model predictive control (HMPC) is a variant of finite-control-set model predictive control, which is mainly developed for high-power applications. In this paper, the HMPC scheme is proposed to control a high-power grid-connected two-level voltage source inverter with an inductive-capacitive-inductive (LCL) filter. To ensure the stable operation of the control system, the resonance characteristics of the system with an LCL filter based on HMPC are analyzed, and an active damping scheme is then given. On the other hand, the impacts of the modeling error on system stability and average switching frequency are analyzed in detail. Then, a new switching frequency-adaptive control scheme that uses the average switching frequency to adjust the parameter value of the predictive model online is presented. The new control scheme can keep the average switching frequency within an acceptable operational margin, while improving the stability of the control system. For demonstration, the proposed control scheme has been implemented on a small-scale grid-connected inverter system, and the results show that the theoretical analysis is correct and that the proposed control scheme is effective.
Little Ice Age climatic erraticism as an analogue for future enhanced hydroclimatic variability across the American Southwest

The American Southwest has experienced a series of severe droughts interspersed with strong wet episodes over the past decades, prompting questions about future climate patterns and potential intensification of weather disruptions under warming conditions. Here we show that interannual hydroclimatic variability in this region has displayed a significant level of non-stationarity over the past millennium. Our tree ring-based analysis of past drought indicates that the Little Ice Age (LIA) experienced high interannual hydroclimatic variability, similar to projections for the 21st century. This is contrary to the Medieval Climate Anomaly (MCA), which had reduced variability and therefore may be misleading as an analog for 21st century warming, notwithstanding its warm (and arid) conditions. Given past non-stationarity, and particularly erratic LIA, a ‘warm LIA’ climate scenario for the coming century that combines high precipitation variability (similar to LIA conditions) with warm and dry conditions (similar to MCA conditions) represents a plausible situation that is supported by recent climate simulations. Our comparison of tree ring-based drought analysis and records from the tropical Pacific Ocean suggests that changing variability in El Niño Southern Oscillation (ENSO) explains much of the contrasting variances between the MCA and LIA conditions across the American Southwest. Greater ENSO variability for the 21st century could be induced by a decrease in meridional sea surface temperature gradient caused by increased greenhouse gas concentration, as shown by several recent climate modeling experiments. Overall, these results coupled with the paleo-record suggests that using the erratic LIA conditions as benchmarks for past hydroclimatic variability can be useful for developing future water-resource management and drought and flood hazard mitigation strategies in the Southwest.