Miracle-dz/UniFAR-FTUs huggingface dataset:
Emasculation Blues: Black Male Teachers’ Perspectives on Gender and Power in the Teaching Profession

Background/Context Over the past decade, a growing chorus of educational stakeholders has called for the recruitment of more Black men into the American teaching profession, casting these men as ideal surrogate father figures for Black youth who may lack adult male role models in their families or communities. Although a small body of scholarly work has begun to examine the gendered forms of culturally relevant pedagogies enacted by Black male teachers, critical analyses have yet to emerge on how these men negotiate the gendered power dynamics and professional culture of a traditionally female workplace. Focus This article presents several sets of findings from a more broadly framed study on the identities, pedagogies, and experiences of Black male teachers. Using Black masculinity studies as a conceptual framework, this article focuses specifically on Black male teachers’ negotiations of workplace gender politics with women colleagues and administrators. Participants The 11 Black male teachers whose narratives are explored in this article were middle or high school teachers in a predominantly Black urban school district on the East Coast of the United States. Research Design The study described in this article was grounded in life history narrative inquiry and employed a three-interview regimen for in-depth interviewing to enable participants to construct rich and nuanced narratives of their lived experiences as Black men and as Black male teachers. Focus groups also allowed participants to co-construct understandings of the challenges and opportunities they faced as Black men in the teaching profession. Transcriptions were coded and analyzed for recurrent themes within each participant's narrative as well as across participant narratives. Findings Participants’ life narratives revealed patriarchal gender ideologies that produced an inattention to male privilege, fueled conflictual encounters with women colleagues and administrators, and informed a desire for more male-centered spaces and interactions within the profession. Conclusions and Recommendations Patriarchal gender ideologies contributed to contentious gender politics in the workplace for the men in this study. Future research should attempt to develop deeper understandings of how these ideologies may influence the experiences of Black men throughout the American teaching profession. Additionally, inquiry efforts should explore strategies for engaging Black male teachers in examinations of their complicated relationships to patriarchy and for applying a critical awareness of gender to their negotiations of gender politics in the workplace.
PANCREATIC DUCT ADENOMA AND STRANGULATION OF THE SMALL INTESTINE IN A CALIFORNIA SEA LION (Zalophus californianus)1

A 16 year-old female California sea lion (Zalophus californianus) died in a zoological garden following a period of insidious weight loss. Necropsy revealed a loop of intestine strangulated by a fibrous ring connected to a pancreatic mass. Histopathologic diagnosis of the latter was pancreatic duct adenoma.
Comparative Results From a CFD Challenge Over a 2D Three-Element High-Lift Airfoil

A high-lift workshop was held in May of 1993 at NASA Langley Research Center. A major part of the workshop centered on a blind test of various computational fluid dynamics (CFD) methods in which the flow about a two-dimensional (2D) three-element airfoil was computed without prior knowledge of the experimental data. The results of this ''blind'' test revealed: 1. The Reynolds Averaged Navier-Stokes (RANS) methods generally showed less variability among codes than did potential/Euler solvers coupled with boundary-layer solution techniques. However, some of the coupled methods still provided excellent predictions. 2. Drag prediction using coupled methods agreed more closely with experiment than the RANS methods. Lift was more accurately predicted than drag for both methods. 3. The CFD methods did well in predicting lift and drag changes due to changes in Reynolds number, however, they did not perform as well when predicting lift and drag increments due to changing flap gap. 4. Pressures and skin friction compared favorably with experiment for most of the codes. 5. There was a large variability in most of the velocity profile predictions. Computational results predict a stronger slat wake than measured suggesting a missing component in turbulence modeling, perhaps curvature effects.
The UL25 Gene Product of Herpes Simplex Virus Type 1 Is Involved in Uncoating of the Viral Genome

ABSTRACT Studies on the herpes simplex virus type 1 UL25-null mutant KUL25NS have shown that the capsid-associated UL25 protein is required at a late stage in the encapsidation of viral DNA. Our previous work on UL25 with the UL25 temperature-sensitive (ts) mutant ts1204 also implicated UL25 in a role at very early times in the virus growth cycle, possibly at the stage of penetration of the host cell. We have reexamined this mutant and discovered that it had an additional ts mutation elsewhere in the genome. The ts1204 UL25 mutation was transferred into wild-type (wt) virus DNA, and the UL25 mutant ts1249 was isolated and characterized to clarify the function of UL25 at the initial stages of virus infection. Indirect immunofluorescence assays and in situ hybridization analysis of virus-infected cells revealed that the mutant ts1249 was not impaired in penetration of the host cell but had an uncoating defect at the nonpermissive temperature. When ts1249-infected cells were incubated initially at the permissive temperature to allow uncoating of the viral genome and subsequently transferred to the restrictive temperature, a DNA-packaging defect was evident. The results suggested that ts1249, like KUL25NS, had a block at a late stage of DNA packaging and that the packaged genome was shorter than the full-length genome. Examination of ts1249 capsids produced at the nonpermissive temperature revealed that, in comparison with wt capsids, they contained reduced amounts of UL25 protein, thereby providing a possible explanation for the failure of ts1249 to package full-length viral DNA.
Computational study of psychosis symptoms and facial expressions

Nonverbal behavior is an essential part of face-to-face clinical interactions, especially in mental health settings. Facial expressions can reveal information about a person’s emotions, mental state and social intentions, and is routinely used by both patients and their doctors in a variety of ways that can impact healthcare outcomes. In our work we demonstrate how automated tools of facial expression analysis can help in assessing a number of clinical scales that measure severity of psychosis symptoms. We analyze nonverbal behaviors during semi-structured clinical interviews and ﬁnd interesting results at the whole session level and when looking at individual responses to clinicians questions. We demonstrate the importance of such analysis and highlight a number of behavioral indicators related to various psychosis symptoms.
Therapist reactions to a client facing terminal illness: a test of ego and countertransference

Title of Document: THERAPIST REACTIONS TO A CLIENT FACING TERMINAL ILLNESS: A TEST OF EGO AND COUNTERTRANSFERENCE Ann M. Hummel, Doctor of Philosophy, 2013 Directed By: Professor C. J. Gelso, Department of Psychology When a therapy client presents with thoughts, emotions, or behaviors that trigger a therapist's own unresolved conflicts, the therapist may experience countertransference. Client concerns that may trigger countertransference include sexuality, aggression, and death (Gelso, Fassinger, Gomez, & Latts, 1995; Latts & Gelso, 1995; Hayes & Gelso, 1993; Lacocoque & Loeb, 1988). Countertransference has been found to relate negatively with client outcome (Hayes, Gelso, & Hummel, 2011), but countertransference management can mitigate the negative effects of countertransference, and can even result in curative therapeutic responses (Gelso & Hayes, 2007). A phenomenon known as ego depletion may cause a therapist to be more vulnerable to countertransference. Ego depletion occurs when self-resources related to impulse control, decision-making, and willpower are low (Baumeister, Vohs, & Tice, 2007). Because of the relation between ego depletion and impulse control, the effect of ego depletion on countertransference was tested. Forty-five participants were randomly assigned to either a neutral or ego depletion condition, and were then presented with a scripted analogue client who discussed a potential terminal illness diagnosis. Participants responded verbally to the client, and their responses were transcribed and coded for behavioral indicators of countertransference. Participants also completed measures of affective and cognitive countertransference. Countertransference management and ego defense maturity were assessed as potential predictors of resilience to ego depletion. The participants in the ego depletion reported higher levels of content-specific affective countertransference (death anxiety), but general affective (state anxiety), behavioral, and cognitive countertransference did not differ between conditions. Countertransference management and ego defense maturity did not significantly account for variance in the relation between ego depletion and countertransference. However, the relation found between ego defense maturity and countertransference management suggests that ego defense maturity could be a precursor to countertransference management. Overall, ego depletion led to increased death anxiety, but therapists were resilient to having this content-specific reaction generalize to other forms of countertransference. THERAPIST REACTIONS TO A CLIENT FACING TERMINAL ILLNESS: A TEST OF EGO AND COUNTERTRANSFERENCE.
Glomerular distribution and gelatinolytic activity of matrix metalloproteinases in human glomerulonephritis.

BACKGROUND Matrix metalloproteinases (MMPs) have been implicated in the development of glomerular injury in rat experimental glomerulonephritis (GN). However, the significance of MMPs in human GN remains obscure. In order to evaluate the role of MMPs in human GN, we examined the glomerular distribution and gelatinolytic activities of MMP-2 and MMP-9 in human GN. METHODS We performed immunohistochemistry with polyclonal anti-MMP-2 and MMP-9 antibodies, and analysed gelatin zymograms of five isolated glomeruli from various types of human renal disease. The renal specimens investigated were from normal kidneys (n=5), IgA nephritis (n=20), Henoch-Schönlein nephritis (n=4), non-IgA mesangial proliferative GN (n=9), lupus nephritis (n=6), acute poststreptococcal GN (APSGN) (n=4) and diabetic nephropathy (DN) (n=4). RESULTS MMP-2 immunoreactivity was not detected in normal controls or in any type of GN. MMP-9 staining, which was almost negative in normal glomeruli, was increased mainly in the mesangial region and corresponded to the level of glomerular cell proliferative changes in mesangial proliferative GN (IgA nephritis, Henoch-Schönlein nephritis, non-IgA mesangial proliferative GN and lupus nephritis). Positive but weak staining for MMP-9 was observed in mesangial areas in DN. In addition, double immunostaining showed that MMP-9 is colocalized in scattered neutrophils within diseased glomeruli in APSGN. MMP-9 gelatinolytic activity in five normal glomeruli was weakly detected. Consistent with the levels of immunostaining, MMP-9 glomerular activity was dramatically increased in nephritic glomeruli with IgA nephritis, lupus nephritis and DN. The gelatinolytic activity of MMP-2 was occasionally detectable in nephritic glomeruli. CONCLUSION These results strongly suggest that MMP-9 plays an important role in abnormal mesangial proliferative changes in human GN.
The effect of dietary and plasma fatty acids on platelet aggregation in senior generation of Japanese women

Dietary factors that influence platelet aggregation have not been fully clarified in humans. 63 Japanese women, aged 40–70 years old, completed one‐day weighted dietary records, and received physical and laboratory examinations. Platelet aggregation was measured by 1.0 and 3.0 μM ADP induction. The results were analyzed with special reference to fatty acids. The short and medium chain fatty acid intake showed negative correlation with maximum percent of platelet aggregation induced by 1.0 μM ADP. Short and medium chain fatty acids in this study were mostly derived from milk and dairy products. Importance of short and medium chain fatty acid intake on platelet aggregation requires further study for prevention of cardiovascular diseases.
SPIHT for generalized multiple description coding

We present a simple and efficient scheme for using the Set Partitioning in Hierarchical Trees (SPIHT) image compression algorithm in a generalized multiple description framework. To combat packet loss, controlled amounts of redundancy are added to the original data during the compression process. Unequal loss protection is implemented by varying the amount of redundancy with the importance of data. The algorithm achieves graceful degradation of image quality in the presence of increasing description loss; high image quality is obtained even when over half of the descriptions are lost.
DAMPening Inflammation by Modulating TLR Signalling

Damage-associated molecular patterns (DAMPs) include endogenous intracellular molecules released by activated or necrotic cells and extracellular matrix (ECM) molecules that are upregulated upon injury or degraded following tissue damage. DAMPs are vital danger signals that alert our immune system to tissue damage upon both infectious and sterile insult. DAMP activation of Toll-like receptors (TLRs) induces inflammatory gene expression to mediate tissue repair. However, DAMPs have also been implicated in diseases where excessive inflammation plays a key role in pathogenesis, including rheumatoid arthritis (RA), cancer, and atherosclerosis. TLR activation by DAMPs may initiate positive feedback loops where increasing tissue damage perpetuates pro-inflammatory responses leading to chronic inflammation. Here we explore the current knowledge about distinct signalling cascades resulting from self TLR activation. We also discuss the involvement of endogenous TLR activators in disease and highlight how specifically targeting DAMPs may yield therapies that do not globally suppress the immune system.
Exercise Protects Against Myocardial Ischemia–Reperfusion Injury via Stimulation of &bgr;3-Adrenergic Receptors and Increased Nitric Oxide Signaling: Role of Nitrite and Nitrosothiols

Rationale: Exercise training confers sustainable protection against ischemia–reperfusion injury in animal models and has been associated with improved survival following a heart attack in humans. It is still unclear how exercise protects the heart, but it is apparent that endothelial nitric oxide synthase (eNOS) and nitric oxide (NO) play a role. Objective: To determine the role of &bgr;3-adrenergic receptors (&bgr;3-ARs), eNOS activation, and NO metabolites (nitrite and nitrosothiols) in the sustained cardioprotective effects of exercise. Methods and Results: Here we show that voluntary exercise reduces myocardial injury in mice following a 4-week training period and that these protective effects can be sustained for at least 1 week following the cessation of the training. The sustained cardioprotective effects of exercise are mediated by alterations in the phosphorylation status of eNOS (increase in serine 1177 and decrease in threonine 495), leading to an increase in NO generation and storage of NO metabolites (nitrite and nitrosothiols) in the heart. Further evidence revealed that the alterations in eNOS phosphorylation status and NO generation were mediated by &bgr;3-AR stimulation and that in response to exercise a deficiency of &bgr;3-ARs leads to an exacerbation of myocardial infarction following ischemia–reperfusion injury. Conclusions: Our findings clearly demonstrate that exercise protects the heart against myocardial ischemia–reperfusion injury by stimulation of &bgr;3-ARs and increased cardiac storage of nitric oxide metabolites (ie, nitrite and nitrosothiols).
Gender Wage Differentials and the Occupational Injury Risk - Evidence from Germany and the US

Numerous studies, in particular for the US, have shown that individuals in occupations with high injury risk are compensated for that risk by corresponding bonus payments. At the same time, male workers are overrepresented in the most dangerous occupations like scaffolders or miners, while females typically work in relatively safe occupations with respect to occupational injuries. It is therefore remarkable that almost all studies analyzing the gender wage gap have disregarded different occupational injury risks as a potential explanatory variable for observed gender wage differentials. By merging data on occupational injury risks to German and US panel data on individual workers, this study analyzes gender wage differentials in Germany and the US considering fatal occupational injury risk. The Blinder-Oaxaca method for tobit models is used to decompose the gender wage gap with and without consideration of the fatal injury risk. Our results indicate that the compensating wage differentials for risky jobs are reflected in the resulting gender wage gap, which is caused by the unequal distribution of occupational injury risks among men and women.
Stability multipliers for memoryless positive nonlinearities: parameterizations based on the nonlinearity graph

We establish that the class of all multipliers that preserve the positivity of a given memoryless positive nonlinearity can be derived by parameterizing the Zames-Falb multipliers, provided certain quantitative information concerning the nonlinearity graph is available. Further, we extend this result to derive the class of all positivity preserving multipliers for a repeated memoryless positive nonlinearity when such information concerning its graph is available. These results are useful in reducing the conservatism inherent in the prevalent multiplier theoretic stability analysis techniques
On Colourings of Hypergraphs Without Monochromatic Fano Planes

For k-uniform hypergraphs F and H and an integer r, let cr,F(H) denote the number of r-colourings of the set of hyperedges of H with no monochromatic copy of F, and let $c_{r,F}(n)=\max_{H\in\ccHn} c_{r,F}(H)$, where the maximum runs over all k-uniform hypergraphs on n vertices. Moreover, let ex(n,F) be the usual extremal or Turán function, i.e., the maximum number of hyperedges of an n-vertex k-uniform hypergraph which contains no copy of F. For complete graphs F = Kℓ and r = 2, Erdős and Rothschild conjectured that c2,Kℓ(n) = 2ex(n,Kℓ). This conjecture was proved by Yuster for ℓ = 3 and by Alon, Balogh, Keevash and Sudakov for arbitrary ℓ. In this paper, we consider the question for hypergraphs and show that, in the special case when F is the Fano plane and r = 2 or 3, then cr,F(n) = rex(n,F), while cr,F(n) ≫ rex(n,F) for r ≥ 4.
Effect of Case Studies on Primary School Teaching Students' Attitudes toward Chemistry Lesson.

The purpose of this study was to investigate the effect of case studies on Primary School Teaching students’ attitudes toward chemistry lesson. The study was conducted on 63 freshmen from Department of Primary School Teaching at a university in Turkey. The students were taught using case studies about the subjects of Properties and States of Matter, Elements and Compounds, Solutions and Mixtures, Physical and Chemical Changes, Chemical Reactions, Acids and Bases, Solubility and Precipitation. In the study, one group pre-test and post-test experimental design was used. As the tool of supplying data, Attitude toward Chemistry Lesson Scale was applied to determine students’ pre and post attitudes. The results of analyzing the scale showed that chemistry education based on case studies caused significantly positive attitudes toward chemistry lesson.
Molecular analysis of TSC2/PKD1 contiguous gene deletion syndrome.

BACKGROUND Tuberous sclerosis complex (TSC) is an autosomal dominant disorder caused by mutations in either of two genes, TSC1 and TSC2. Autosomal dominant polycystic kidney disease (ADPKD) is caused by mutations in either PKD1 or PKD2. TSC2 lies immediately adjacent to PKD1 and large heterozygous deletions can result in the TSC2/PKD1 contiguous gene syndrome (PKDTS). PKDTS has been identified in patients with TSC and early-onset severe ADPKD. However, genetic diagnosis with conventional methods proved to be difficult because its genetic aberrations are large monoallelic mutations. METHODS In the study presented here, we used both multiplex ligation-dependent probe amplification (MLPA) and array comparative genomic hybridization (array-CGH) for four PKDTS patients. RESULTS We were able to detect large heterozygous deletions including TSC2 and PKD1 by both of MLPA and array-CGH in all four patients. And in two patients, array-CGH identified relatively large genomic aberrations (RAB26, NTHL1, etc.), that extended outside of TSC2 or PKD1. CONCLUSION The identical results obtained with these two completely different methods show that both constitute highly reliable strategies. Only a few studies have determined the breakpoints of large deletions in this disease and ours is the first to have identified the breakpoints by using array-CGH. We suggest that these methods are not only useful for the diagnosis of PKDTS but also for elucidation of its molecular mechanism.
Short communication Determination of neutral sugars in soil by capillary gas chromatography after derivatization to aldononitrile acetates

We have quantified ribose, rhamnose, arabinose, xylose, fucose, mannose, glucose, and galactose in soil by gas chromatography (GC) simultaneously after converting to aldononitrile acetate derivatives. A recommended single-hydrolytic step by 4 M trifluoroacetic acid (TFA) at 1051C for 4 h was more effective for releasing soil neutral sugars from non-cellulosic carbohydrates and better suited to our purification procedure compared with the sulphuric acid hydrolysis. Linearity of the GC detection for each neutral sugar was in the range of 10–640m gm l � 1 and the recovery of neutral sugars from the spiked soil samples ranged from 76% to 109.7%. The coefficients of variation of the neutral sugars in four soils were lower than 2.0% for the instrument and 4.6–7.6% for the whole determination procedures. Compared with the trimethylsilyl (TMS) derivatization, the recovery of our newly modified method was more satisfactory and the reproducibility of ribose was improved significantly. Moreover, the aldononitrile acetate derivative was more stable than TMS derivative. Therefore, it is a promising approach suitable for a routine use in the quantitative analysis of soil neutral sugars, since it is fast, sensitive, and reproducible. r 2007 Elsevier Ltd. All rights reserved.