cssi/SciSciGPT-SciSciNet huggingface dataset:
Breaking Up Is Hard to Do: Mexican American Girls’ Reactions to Boyfriends’ Infidelity

This qualitative study examines how Mexican American girls define and respond to partner infidelity. In-depth interviews with 24 Mexican American girls, ages 14–18, formed the basis of this study. Although girls variously defined cheating, the majority believed that girls should break up with boyfriends who are physically intimate with an outside partner. Yet, the girls’ real world experiences revealed a more nuanced understanding of how girls actually respond to partner infidelity. While most girls who had been cheated on immediately broke up with their partners, they were also quite likely to reconcile with them for a variety of reasons. Emotional and sexual health implications for relationship cycling---defined as breaking up, getting back together, and breaking up again---are discussed.
Role of Fermi acceleration in explosive enhancement of cross‐tail current in late substorm growth phase

During the substorm growth phase, thinning of the plasma sheet can energize the unmagnetized ions trapped within it via a Fermi acceleration process. We show here that the energy growth rate, affecting mostly the unmagnetized ions, is exponential in time. The Fermi acceleration will give rise to a large enhancement in the cross-tail ion current density and would be most prominent during the late growth phase. This prediction is quite consistent with previously reported satellite observations which show that the cross-tail current density intensifies rapidly during the final stage of the growth phase just prior to current disruption.
Aldosterone and sodium conservation: the effect of acute dietary sodium deprivation on the plasma concentration, the metabolic clearance and the secretion and excretion rates of aldosterone in normal subjects.

ABSTRACT The effect of dietary sodium deprivation on the metabolic clearance, metabolic rate constants, volumes of distribution, and disappearance rate of administered radioactive aldosterone as well as on the secretion and excretion rates and plasma concentration of aldosterone was studied in healthy subjects. Aldosterone secretion and excretion rates and the calculated plasma aldosterone concentration increased during the period of dietary sodium restriction. Using a 2-compartmental model system, results derived from analyses of the disappearance curves of tritiated aldosterone in plasma both before and during dietary sodium restriction did not reveal a change in the distribution volumes, the metabolic rate constants, or the metabolic clearance of aldosterone. Under the conditions of these studies the increase in plasma aldosterone concentration during dietary sodium deprivation was determined by the elevated rate of aldosterone secretion rather than by changes in the metabolic clearance of aldosterone....
Student Perceptions of Simulation's Influence on Home Health and Hospice Practicum Learning

Abstract Background The purpose of this qualitative study was to begin to explore whether an end-of-life simulation enhances baccalaureate senior-level nursing student learning in a home health and hospice practicum setting. Method A phenomenological approach was used to study simulation's influence on practicum learning. 30 senior-level baccalaureate nursing student participants experienced an end-of-life simulation lab scenario and were asked to describe their experience and relate it to preparation for their home health and hospice practicum, once immediately following the scenario and once at the end of their practicum experience approximately 3 to 4 weeks later. The Colaizzi approach was used and was assisted by the use of a qualitative analysis software tool, Ethnograph©. Results Three main themes emerged, experiential learning, affirmative outcomes, and family as client. Conclusion Perceptions of the influence of simulation learning on senior-level nursing students' experience with a home care and hospice practicum promote its value and continued use.
Nest structure and flights of the ant Formica obscuriventris Mayr

Abstract In southern Michigan the ant Formica obscuriventris Mayr constructs superficial nests under logs and piled-up leaves. Covered runways connect widely spread chambers. In 1962 one colony released approximately 3000 winged ants in 16 flight days between July 27 and August 24th. An estimated 2587 males flew, and the first nine flights were exclusively male. Females took part in six flights, but most (362 of the 422) flew on one day. The best flights occurred when bright sun warmed the ground after cold nights. Males could move out of the nest at 57 °F. and could begin flying at 63 °F. They flew best at about 68 °F. and and seemed unable to fly at temperatures above 72 °F. Females began flying at 66 °F. and flew best at 69 ° to 70 °F. Any dimming of light delayed or stopped flights even though temperatures might be favourable. Flights were prevented by overcast sky, rain or soaked ground.
Identification of Staphylococcal Nuclease Domain-containing 1 (SND1) as a Metadherin-interacting Protein with Metastasis-promoting Functions *

Metastasis is the deadliest and most poorly understood feature of malignant diseases. Recent work has shown that Metadherin (MTDH) is overexpressed in over 40% of breast cancer patients and promotes metastasis and chemoresistance in experimental models of breast cancer progression. Here we applied mass spectrometry-based screen to identify staphylococcal nuclease domain-containing 1 (SND1) as a candidate MTDH-interacting protein. After confirming the interaction between SND1 and MTDH, we tested the role of SND1 in breast cancer and found that it strongly promotes lung metastasis. SND1 was further shown to promote resistance to apoptosis and to regulate the expression of genes associated with metastasis and chemoresistance. Analyses of breast cancer clinical microarray data indicated that high expression of SND1 in primary tumors is strongly associated with reduced metastasis-free survival in multiple large scale data sets. Thus, we have uncovered SND1 as a novel MTDH-interacting protein and shown that it is a functionally and clinically significant mediator of metastasis.
Infrared spectral investigation of polyacrylate adsorption on alumina

Diffuse reflectance infrared Fourier transform spectroscopy was used to investigate the structural nature of polyacrylates adsorbed on alumina from aqueous solution. The presence of sodium bicarbonate or sodium ions on the alumina surface could inhibit the carboxylate groups on the polymer chains from forming covalent bonds with aluminium ions on the surface. More carboxylate groups of the chains were adsorbed on surface sites at lower polymer concentration and higher pH. Also, an increased loop formation of the polyacrylate chains occurred with a decrease in treatment of pH and an increase in polymer concentration. When the pH changed from higher to lower values in steps, the adsorbed polymer did not increase as much from the stretched-out form to the coiled form as was noted if one initially only treated the aqueous polyacrylate/alumina slurry at the lower pH. The adsorption of water on the polyacrylate-treated surface changed the ratio between covalently and ionically bonded carboxylate groups, causing more ionically bonded species.
Determining the optimal discharge strategy for a lithium-ion battery using a physics-based model

Abstract Multi-cell, penalty minimizing discharging schemes were developed based on experimental data and high-level models in attempt to optimize discharge capacity and cycle life based on an unspecified optimal load current. Degradation due to high discharge current is well known, but the degradation behavior of the cell at low discharge current has not been thoroughly studied. To facilitate the implementation of the penalty method in multi-cell controllers, a physics-based pseudo-2D lithium ion model is used to investigate the degradation effects at low discharge current. The results of the model show that the optimal current, depending on the application, is not necessarily constant, but instead shows a 2-stage decrease within each discharge cycle. The optimal current also decreases as the cycle number increases.
Benign soft tissue masses of the wrist and hand: MRI appearances.

We reviewed 20 cases of soft tissue masses of the hand and wrist, and compared the impressions from the original magnetic resonance (MR) imaging reports with the preoperative clinical impression and postoperative pathological diagnoses. The most commonly occurring masses were ganglia, lipomas, and giant cell tumors of tendon sheaths. MR imaging suggested the correct diagnosis in 16 of the 20 cases, whereas the clinical impression was correct in 10 instances. Confident preoperative diagnosis may be made with MR imaging due to the characteristic appearances of many benign soft tissue tumors.
Polymer diodes with a blend of MEH-PPV and conjugated polyquinoline

Abstract A polymer blend containing MEH-PPV and a conjugated polyquinoline, poly(2,6-(4-phenylquinoline)), PQ, is obtained by first dissolving PQ in common organic solvents by complexation with a functionalized protonic acid and then mixing with a solution of poly(2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene), MEH-PPV. Transmission electron microscopy (TEM) of blend films reveals an extremely homogeneous and fine fibrillar interconnected dispersion of the PQ-complex for blends containing ~1% PQ, suggesting that there is a large interfacial area between the MEH-PPV and PQ-complex regions. In devices with the simple structure ITO/polymer blend/Al, EL external quantum efficiency is significantly enhanced by the blending, reaching a value of 0.08% photons/electron for blend films with a nominal PQ content of about 1.5%. This is greater than that of ITO/MEH-PPV/A1 devices by a factor of more than 20.
The relationship between daily and vacation activities

Abstract The purpose of this research was to build upon existing literature in recreation involvement and loyalty to investigate the relationship between vacation and daily activities. The results support the hypothesis that the more that individuals are involved in an activity in a daily setting, the more they tend to participate in the same activity while on vacation. The segmentation tree analysis shows that not all activities are “created equally,” since some obtain a higher level of attachment than others. Three classifications of activity association are established: positive, nondescript, and negative. Implications for destination planning and marketing as well as future research directions are discussed.
Velocity structure and transport in the Windward Islands Passages

Abstract During 1991–1994, repeated measurements of current structure and water mass properties were made in the major southern passages to the Caribbean Sea between Trinidad and Dominica. A total of 10 cruises were performed in different seasons, consisting primarily of serial station occupations in the Grenada, St Vincent, St Lucia, and Dominica Passages. This data set is by far the most comprehensive available in these passages and better determines the mean flow and range of variability than do previous studies. The flow structure in these passages is characterized by a strong and relatively stable inflow above the thermocline (approximately the upper 100 m), and a more highly variable flow regime within and below the thermocline. Typical near-surface inflow velocities in Grenada and St Vincent passages were 40–60 cm s −1 , with maximum observed currents of 90 cm s −1 . Frequently, counterflows were observed below this surface layer flowing out of the Caribbean, trapped to the southern side of the passages. This subsurface counterflow appeared to be strongest and most prevalent in Grenada Passage, where outflow speeds as large as 30 cm s −1 were observed. As a result, the ensemble mean sections for the three southern passages exhibit a deep inflow concentrated in the northern and central parts of the passages, and weak outflow on the southern sides. The ensemble of measurements from this program indicate a mean transport of 9.5±3 × 10 6 m 3 s −1 through the southern passages, with a range of variability from 3 to 17 × 10 6 m 3 s −1 . No clear annual cycle is apparent in the passage transports. Mean transports calculated for the individual passages were 4.7, 3.4, 0.9, and 0.5 × 10 6 m 3 s −1 , respectively, for Grenada, St Vincent, St Lucia, and Dominica Passages, decreasing monotonically northward and indicating that Grenada and St Vincent Passages largely dominate the inflow to the southern Caribbean. Consideration of this data set, historical data, Sverdrup theory and numerical model results suggests that very little of the mean inflow to the Caribbean through the southern passages can be attributed to wind-driven circulation, and that most of the transport (6–8 × 10 6 m 3 s −1 ) is derived from South Atlantic waters crossing the equator in the upper limb of the Atlantic thermohaline cell. The remainder of the upper ocean thermohaline transport likely follows a different route into the subtropical gyre, possibly flowing northward in the interior and entering the Caribbean through the more northern passages.
A collagen film microassay for tissue collagenase.

Abstract A quantitative microassay for the detection of bacterial and tissue collagenase is presented. Collagen in acetic acid solution forms a thin, tenacious film upon contact with a dried agar surface. The digestion of the film by collagenase is detected by subsequent staining with Coomassie blue. Undigested film is stained dark blue while areas of collagenase digestion remain clear. The technique can be employed in two ways: with collagen-coated glass coverslips as a rapid screening method or with collagen-lined capillary tubes for precise quantitation. The assay has a sensitivity comparable to those assays using radioactively labeled collagen substrates and requires only 5 to 60 min of incubation.
Is the United States an outlier in health care and health outcomes? A preliminary analysis*

U.S. health care is often seen as an outlier, with high costs and only middling outcomes. This view implies a household production function for health, with both health care and lifestyle serving as inputs. Building on earlier work by Miller and Frech (2004), we make this argument explicit by estimating a production function from augmented OECD data. This allows us to determine whether the U.S. is literally an outlier; which turns on whether the United States is very far off the production surface. We find that the Unites States is somewhat less productive than the average OECD country, but that a substantial part of the observed difference results from poor lifestyle choices, particularly obesity.
A Kinase-Independent Function of c-Abl in Promoting Proteolytic Destruction of Damaged DNA Binding Proteins

Damaged DNA binding proteins (DDBs) play a critical role in the initial recognition of UV-damaged DNA and mediate recruitment of nucleotide excision repair factors. Previous studies identified DDB2 as a target of the CUL-4A ubiquitin ligase. However, the biochemical mechanism governing DDB proteolysis and its underlying physiological function in the removal of UV-induced DNA damage are largely unknown. Here, we report that the c-Abl nonreceptor tyrosine kinase negatively regulates the repair of UV-induced photolesions on genomic DNA. Biochemical studies revealed that c-Abl promotes CUL-4A-mediated DDB ubiquitination and degradation in a manner that does not require its tyrosine kinase activity both under normal growth conditions and following UV irradiation. Moreover, c-Abl activates DDB degradation in part by alleviating the inhibitory effect of CAND1/TIP120A on CUL-4A. These results revealed a kinase-independent function of c-Abl in a ubiquitin-proteolytic pathway that regulates the damage recognition step of nucleotide excision repair.
Focused screening for occult carotid artery disease: patients with known heart disease are at high risk.

Abstract Objectives Stroke puts a major financial burden on our healthcare system. However, carotid duplex scanning performed as a screening test for occult carotid artery stenosis (CAS) currently is not reimbursed by Medicare. The goals of this study were to develop a cost-effective stroke screening program, to determine the prevalence of potential causes of stroke in this population, and to define a population at high risk in which screening would be most effective. Methods In a community-based stroke screening program, patients were eligible if they were older than 60 years and had a history of either hypertension, heart disease, or cigarette smoking, or a family history of stroke. Screening included blood pressure determination, an electrocardiographic rhythm strip, and a previously validated modified carotid duplex ultrasound examination to detect CAS 50% or greater. The relationships between standard demographic risk factors and screening outcomes were analyzed. Results Screening was performed in 610 patients. Unilateral or bilateral CAS was detected in 66 patients (10.8%). The finding of occult CAS was more prevalent than that of new hypertension (2.6%) or new atrial fibrillation (0.5%). Patients with known hypertension were significantly more likely to have CAS than were those without hypertension (12.7% vs 7.8%; P = .05). Patients with heart disease were significantly more likely to have CAS than were those without heart disease (18.2% vs 8%; P P Conclusions In a screening program for treatable causes of potential stroke, CAS was the most commonly diagnosed disease. More than one of every five patients with known hypertension and heart disease had occult CAS. Known heart disease of any type was a significant independent predictor of occult CAS. Screening for treatable causes of potential stroke can be cost-effective. This information could help to further target populations to screen for occult CAS and to justify reimbursement for screening carotid duplex scanning examinations.
Alkylation of silver(I) with tetraethylead

Abstract The alkylation of silver(I) trifluoromethanesulfonate by tetraethyllead is studied in a protic (acetic acid) and an aprotic (tetrahydrofuran) medium. Ethane is formed in acetic acid by protonolysis of the ethylsilver intermediate, but the reaction is no truly catalytic [as it is with copper(I)] due to the thermal instability of ethylsilver. The decomposition of ehylsilver in tetrahydrofuran can afford high yields of ethane or butane depending on the concentrations of the reactants. The formations of ethane and butane show different sensitivity toward molecular oxygen. The role of ethyl radicals generated by homolysis of the ethylsilver intermediate is discussed.
The Potential Role of a Self-Management Intervention for Ulcerative Colitis: A Brief Report From the Ulcerative Colitis Hypnotherapy Trial

Inflammatory bowel diseases (IBD) are chronic inflammatory illnesses marked by unpredictable disease flares, which occur spontaneously and/or in response to external triggers, especially personal h...
Delivery of systemic chemotherapeutic agent to tumors by using focused ultrasound: study in a murine model.

PURPOSE: To quantitatively determine the delivery of systemic liposomal doxorubicin to tumors treated with pulsed high-intensity focused ultrasound and to study the mechanism underlying this delivery in a murine model. MATERIALS AND METHODS: All animal work was performed in compliance with guidelines and approval of institutional animal care committee. C3H mice received subcutaneous injections in the flank of a cell suspension of SCC7, a murine squamous cell carcinoma cell line; mice (n = 32) in drug delivery study received unilateral injections, whereas mice (n = 10) in mechanistic study received bilateral injections. Tumors were treated when they reached 1 cm3 in volume. In the drug delivery study, doxorubicin hydrochloride liposomes were injected into the tail vein: Mice received therapy with doxorubicin injections and high-intensity focused ultrasound, doxorubicin injections alone, or neither form of therapy (controls). Tumors were removed, and the doxorubicin content was assayed with fluorescent spec...
The effects of non-equilibrium processing in the development of copper alloys☆

Abstract Two non-equilibrium processes, rapid solidification (RS) and mechanical alloying (MA), have been used to synthesize and control highly refined microstructures in liquid immiscible metal systems and limited solubility systems at high volume fractions of the immiscible constituent. Studies of AlIn, CuCr, CuW and CuPbSn microcomposites suggest that they possess technologically important mechanical and physical properties and notable thermal stability when the gross chemical segregation that occurs during conventional processing can be avoided. The effects of RS and MA on several copper alloy systems are presented. The concept of phase redistribution processing (PRP) is also discussed. PRP is the sequential application of RS and MA to achieve substantial microstructural refinement and redistribution of phases in systems displaying segregation or coarse or localized precipitation and dispersions. The effectiveness of PRP is demonstrated by its application to a CuPbSn automotive bearing alloy. The examples presented in this paper suggest the wide applicability of RS, MA and PRP to previously intractable alloy systems to create useful new alloys and new forms of conventional alloys.
THE UNSEEN SEER, OR PROTEUS IN THE CITY: ASPECTS OF A NINETEENTH-CENTURY PARISIAN MYTH

Parallelement a l'emergence d'un pouvoir central invisible et omnipresent apparaissent des personnages proteiformes qui constituent de veritables mythes, et que l'on retrouve dans la litterature. Le criminel (le Vautrin de Balzac), le detective ou le policier (le Javert de Hugo), le capitaliste (Gobseck de Balzac, Jacques Ferrand d'E. Sue)| le " flâneur " de Baudelaire| le romancier moderne, Dieu cache transcendant a sa creation (Flaubert)
Local order property in nonelementary classes

Abstract. We study a local version of the order property in several frameworks, with an emphasis on frameworks where the compactness theorem fails: (1) Inside a fixed model, (2) for classes of models where the compactness theorem fails and (3) for the first order case. Appropriate localizations of the order property, the independence property, and the strict order property are introduced. We are able to generalize some of the results that were known in the case of local stability for the first order theories, and for stability for nonelementary classes (existence of indiscernibles, existence of averages, stability spectrum, equivalence between order and instability). In the first order case, we also prove the local version of Shelah's Trichotomy Theorem. Finally, as an application, we give a new characterization of stable types when the ambient first order theory is simple.
Diffraction Grating Efficiency Calculations Based on Real Groove Profiles

Atomic force microscope measurements are analyzed to determine groove profiles of gratings included in spacebome spectrographs. Resulting models of diffraction efficiency using PCGrate™[l] and other codes are compared to efficiency measurements.
The relationship between personality, health symptoms and disease

Abstract Eysenck (1985, Personality and Individual Differences, 5, 535–557) has proposed a theory relating personality to cancer and cardiovascular disease. In the current study a technique was devised to combine physicians' ratings of health symptoms and diseases on four health factors which were entitled stress, cardiovascular disease, life-style and cancer. Factor scores from the four health factors were correlated with the Eysenck Personality Questionnaire in order to test Eysenck's theory. The results tended to support previous research in that a negative relationship was found between neuroticism and cancer, and a positive relationship was found between neuroticism, stress-related symptoms, and cardiovascular symptoms. These variables only accounted for a small amount of the variance however. No support was found for the hypothesized relationship of extraversion to cardiovascular disease or to cancer. This study found that the dimensions of cardiovascular disease symptoms and cancer symptoms were positively correlated (r = 0.34).
Facts and artifacts in brain electrical activity mapping

As computerized EEG (CEEG) analysis and display methods become increasingly powerful the user is lured toward increasingly abstract representations of data in which artifacts can easily go unrecogniaed. The presence of even small amounts of artifact can lead to distortion of CEEG results dur to the sensitivity of the analysis methods employed. Several common artifacts are discussed, their distortion of CEEG data illustrated, and remedial measures suggested. Some of these artivacts (EOG, EMG, photomyoclonic, tremor, ECG, 60 Hz, volume conducted cortical activity) are familiar to traditional EEG (aliasing, extrapolation) are unique to CEEG and may be inadvertantly introduced by worrkers not specificall trained in CEEG methods.
Disruption of masking by hypothalamic lesions in Syrian hamsters.

Negative masking of locomotor activity by light in nocturnal rodents is mediated by a non-image-forming irradiance-detection system in the retina. Structures receiving input from this system potentially contribute to the masking response. The suprachiasmatic nucleus (SCN) regulates locomotor activity and receives dense innervation from the irradiance-detection system via the retinohypothalamic tract, but its role in masking is unclear. We studied masking in adult Syrian hamsters (Mesocricetus auratus) with electrolytic lesions directed at the SCN. Hamsters were exposed to a 3.5:3.5 ultradian light/dark cycle and their wheel-running activity was monitored. Intact hamsters showed robust masking, expressing less than 20% of their activity in the light even though light and dark occurred equally during their active times. In contrast, hamsters with lesions showed, on average, as much activity in the light as in the dark. Tracing of retinal projections using cholera toxin β subunit showed that the lesions damaged retinal projections to the SCN and to the adjacent subparaventricular zone. Retinal innervation outside the hypothalamus was not obviously affected by the lesions. Our results indicate that retinohypothalamic projections, and the targets of these projections, to the SCN and/or adjacent hypothalamic areas play an important role in masking.
Visual Micro-Sociology and the Sociology of Flesh and Blood: Comment on Wacquant

Embodied sociology is compared to the micro-sociology of violence in understanding bodily-emotional-interactional processes in lived time. Besides the phenomenology of the researcher’s own bodily experience, a combination of methods are useful, including emotional expressions and rhythms seen through observation, photos, and videos, and informed interviewing. Combined methods give a larger picture of all the participants on the scene. Viewed more broadly, one of things we find is that embodied actors are not equally skilled, but are situationally stratified by confrontations among persons with differing degrees of competence andincompetence in micro-interactional skills.
Predictor relative importance and matching regression parameters

Predictor importance in applied regression modeling gives the main operational tools for managers and decision-makers. The paper considers estimation of predictors' importance in regression using measures introduced in works by Gibson and R. Johnson (GJ), then modified by Green, Carroll, and DeSarbo, and developed further by J. Johnson (JJ). These indices of importance are based on the orthonormal decomposition of the data matrix, and the work shows how to improve this approximation. Using predictor importance, the regression coefficients can also be adjusted to reach the best data fit and to be meaningful and interpretable. The results are compared with the robust to multicollinearity, but computationally difficult, Shapley value regression (SVR). They show that the JJ index is good for importance estimation, but the GJ index outperforms it if both predictor importance and coefficients of regression are needed; hence, this index (GJ) can be used in place of the more computationally intensive estimation b...
Long-Term Visual Results in Bilateral Congenital Cataracts

In 24 infants who underwent surgery for bilateral congenital cataracts, 29 eyes (60%) achieved visual acuities of 6/18 (20/60) or better and 13 (27%) had visual acuities of 6/60 (20/200) or worse. The best results occurred in patients who underwent surgery before they were 8 weeks old. Only one patient of the seven operated on after the age of 8 weeks achieved a visual acuity of better than 6/60 (20/200). These favorable visual outcomes were the result of early surgery, short intervals between operations on fellow eyes (48 hours or less), total bilateral occlusion between operations, careful postoperative monitoring with retinoscopy and visual-evoked potentials, and early correction of aphakia.
Depression during methadone withdrawal: No role for β-phenylethylamine

An atypical depression, resembling beta-phenylethylamine (PEA) deficiency states, frequently complicates methadone withdrawal. We undertook a study of 24-h urinary free PEA excretion in steady-dosed and withdrawing methadone patients, hypothesizing that abstinent patients would excrete less PEA than controls and that methadone would show a dose-dependent effect on PEA turnover. As hepatic dysfunction, frequent in methadone patients, might affect PEA turnover, we also evaluated liver chemistries, [13C]aminopyrine excretion, 2-hydroxylation of estradiol, and 'blind', global severity ratings in each subject. PEA excretion did not significantly differ between eight fully detoxified methadone patients (median 4.76 micrograms/24 h) and seven normal controls (median 5.80 micrograms/24 h). Moreover, PEA excretion bore no relation to methadone dosage among 24 steady-dosed subjects. PEA excretion in seven withdrawing subjects each receiving 4-8 different doses of methadone similarly showed no relation to dose. Despite significant liver disease, several measures of impairment did not correlate with PEA excretion. These findings argue against a role for PEA deficiency in withdrawal depression.
Seasonal changes in the male accessory glands of reproduction in adult Fallow deer (Dama dama)

The accessory glands of reproduction of male Fallow deer (Dama dama L.) comprise paired ampullae which are expansions of the caudal portions of the vas deferens, paired seminal vesicles, a prostate and a disseminate prostate embedded in the pelvic urethra. All the glands undergo an annual cycle of growth and regression, reaching their maximum development in October at the time of the rut. Parallel changes were observed in the testes.
Origin and Accumulation of Aluminosilicates in the Ocean

The basic assumptions used by B. Kullenberg in his attempt to calculate the probable magnitude of the variations of the rate of accumulation of clay appear unrealistic in the light of present knowledge, and consequently the results are hardly applicable. His assumptions imply that the sizes of the clay particles now observed in samples from the ocean floor have remained essentially unchanged during transport and deposition. Most probably, however, the marine clays represent the end product of precipitation and coarsening processes, the initial particles partly being of ionic and molecular size. Changes in the rate of deposition of aluminosilicates in eupelagic areas are rather determined by physico-chemical properties of sea water than by changes in the influx to the ocean. Such changes are supposed to be practically equalled out in the neritic and hemipelagic environment. DOI: 10.1111/j.2153-3490.1954.tb01115.x
Does Affordable Housing Detrimentally Affect Property Values? A Review of the Literature:

Opposition to affordable housing is often motivated by home-owners’fear that their property values will decline. Responding to these fears, affordable housing advocates have claimed that there is l...
Development of two song categories by chestnut-sided warblers

Abstract Unlike most songbirds, individuals of several wood-warbler species have song repertoires that contain two song classes, each with distinct patterns of use and geographical variation. These patterns suggest that the modes of song development of the two categories could differ in important ways, such as in the nature of auditory and social experience required during song ontogeny. That possibility was tested in an experiment with a representative paruline species, the chestnut-sided warbler Dendroica pensylvanica . Of three experimental groups, one heard no tutor songs. A second group heard tutor tapes of both the unaccented-ending (UE) and accented-ending (AE) song categories, and a third group heard the tutor tapes but also saw and heard live adult males. The untutored birds developed no species-typical songs. Some of the tutored individuals learned songs from tapes alone, but learning and performance quality were greatly enhanced by the presence of a live tutor. Birds exposed only to tape tutoring imitated AE songs but failed to learn UE songs; live-tutored birds imitated songs from both categories. These results, interpreted in the context of field data, support the hypothesis that chestnut-sided warbler song development is somewhat compartmentalized, with AE song development more restricted by a neural ‘template’ and UE song more dependent on, and subject to influence by, social interaction.
Preservice Teachers as Writers

This study examines 42 early childhood preservice teachers' experiences in a writing methods course. Findings indicated that preservice teachers began the class with a strong sense of themselves as writers along the good–bad writing dichotomy. Throughout their experiences in a writing methods course the preservice teachers identified four instructional strategies and experiences as helpful in developing a more positive sense of self as writer and as future writing teacher. These included reading like a writer, having similar writing experiences in class as their future students, writing regularly and having choice in topic, and designing writing mini-lessons. This study adds to the research on preservice teachers' attitudes and perceptions about writing but also extends our understanding in what specific knowledge preservice teachers name as valuable from their course experience.
Depth resolution properties of in-line X-ray phase-contrast tomosynthesis

In-line x-ray phase-contrast (XPC) tomosynthesis combines the concepts of tomosynthesis and in-line XPC imaging to utilize the advantages of both for biological imaging applications. Tomosynthesis permits reductions in acquisition times compared with conventional tomography scans while in-line XPC imaging provides high contrast and resolution in images of weakly absorbing materials. In this work, we develop an advanced iterative algorithm as an approach for dealing with the incomplete (and often noisy) data inherent to XPC tomosynthesis. We also investigate the depth resolution properties of XPC tomosynthesis and demonstrate that the z-resolution properties of XPC tomosynthesis is superior to that of conventional absorption-based tomosynthesis. More specifically, we find in-plane structures display strong boundary-enhancement while out-of-plane structures do not. This effect can facilitate the identification of in-plane structures.
Studies toward the synthesis of Stemona alkaloids; a short synthesis of the tricyclic core of tuberostemonines

Abstract The tricyclic hydroindole core system of the Stemona alkaloids was prepared in 9 steps from N -Aloc-tyramine. The synthesis features oxidation of tyramine with hypervalent iodine followed by intramolecular conjugate addition and Mitsunobu cyclization of an amino-alcohol as the key steps.
Effect of nitro-L-arginine on cerebral blood flow and monoamine metabolism during ischemia/reperfusion in the mongolian gerbil.

Inhibition of nitric oxide synthase with nitro-L-arginine (i.p., 40 mg/kg body weight) in contrast to L-arginine (300 mg/kg body weight) delayed the initial recovery of cerebral blood flow (CBF) and altered dopamine (DA) metabolism in brain ischemia/reperfusion of Mongolian gerbils. Similar changes but more severe were observed with pargyline (monoamine oxidase inhibitor). Data suggest nitric oxide involvement in postischemic CBF recovery and modulation of DA metabolism due to nitro-L-arginine-induced CBF reduction.
Some efferent connections of the ventral medial nucleus of the thalamus in the cat

Abstract Electrolytic lesions were stereotaxically placed in the ventral medial nucleus of the thalamus and the resultant fiber degeneration was traced using the modified Nauta-Laidlaw technique. The findings indicate that the ventral medial nucleus sends fibers to the gyrus sigmoides anterior, gyrus proreus, gyrus lateralis and portions of the gyrus sylvius, the gyrus ectosylvius and the gyrus suprasylvius. The ventral medial nucleus projects to the region of the anterior nuclear group and to the nuclei centralis lateralis, paracentralis, medialis dorsalis, ventralis lateralis and the reticular nucleus. Degenerating fibers also course downstream in the central tegmental fasciculus and some very fine fibers course through the medial lemniscus.
Programmable generation of ultrafast optical waveforms: Recent advances in theory and technology

Recent advances in the shaping of ultrafast optical waveforms using liquid crystal (LC) spatial light modulators (SLM) are presented. Two LC SLMs are used in a novel arrangement to produce programmable waveforms with specified time-dependent amplitude and temporal phase profiles with the greatest fidelity and complexity to date. The apparatus is also used to demonstrate the generation of an ultrafast waveform with a programmable time-dependent polarization profile. A general theoretical result that describes the space-time electric field profile of waveforms shaped by the spectral filtering of spatially separated frequency components is also presented. The main result is that diffraction gives rise to a translational spatial shift in the electric field profile that varies linearly with time along the shaped waveform.
Modification of duhamel procedure: Elimination of rectal pouch and colorectal septum☆

Abstract In the management of Hirschsprung's disease, transanal diagnostic rectal wall biopsy is recommended in any infant or young child with major gastrointestinal malfunction, especially constipation or diarrhea, which has its inception in the neonatal period of life. Preliminary colostomy is recommended through ganglionated bowel in treatment of enterocolitis, to improve the work hypertrophy and dilatation of ganglionated bowel and to upgrade the operative risk in these children who are invariably malnourished. A modification of the Duhamel procedure is described in which the entire colorectal septum is removed and the blind rectal pouch totally eliminated. Fourteen patients have been treated by this modification of the Duhamel operative procedure with gratifying, although rather short term, results. The operation is adaptable to the very young infant, can be accomplished fairly quickly, with little morbidity and mortality, and with a high expectation of cure of the patient's symptoms.
Effect of Parathyroid Extract on the Development of Wound Rupture Strength

SYNOPSIS IN INTERLINGUAEFFECTO DE EXTRACTO PARATHYROIDIC SUPER LE DISVELOPPAMENTO DEL FORTIA RUPTURAL IN VULNERES. -Recente studios ha demonstrate que extracto parathyroidic es capace a stimular un factor collagenolytic in osso. Tamen, le responsa de altere tissus conjunctive a extracto parathyroidic ha non essite determinate con respecto a un tal factor. Le presente studio esseva un essayo de demonstrar le effecto de extracto parathyroidic super primari vulneres de pelle in stato de guarition in juvene rattos. Vulnerate animales recipeva un injection de 200 unitates de extracto parathyroidic omne die durante tres dies ante lor sacrificio. Le animales esseva sacrificate 6, 9, e 12 dies post le vulneration. Un analyse statistic del fortia ruptural del vulneres revelava un significative augmento del fortias in vulneres post 9 dies. Le constatationes esseva interpretate como non supportante le hypothese que extracto parathyroidic stimula un factor collagenolytic in le tissu conjunctive de un vulnere in guari...
A Carboxy-Terminal Basic Region Controls RNA Polymerase III Transcription Factor Activity of Human La Protein

Human La protein has been shown to serve as a transcription factor for RNA polymerase III (pol III) by facilitating transcription termination and recycling of transcription complexes. In addition, La binds to the 3' oligo(U) ends common to all nascent pol III transcripts, and in the case of B1-Alu RNA, protects it from 3'-end processing (R. J. Maraia, D. J. Kenan, and J. D. Keene, Mol. Cell. Biol. 14:2147-2158, 1994). Others have previously dissected the La protein into an N-terminal domain that binds RNA and a C-terminal domain that does not. Here, deletion and substitution mutants of La were examined for general RNA binding, RNA 3'-end protection, and transcription factor activity. Although some La mutants altered in a C-terminal basic region bind RNA in mobility shift assays, they are defective in RNA 3'-end protection and do not support transcription, while one C-terminal substitution mutant is defective only in transcription. Moreover, a C-terminal fragment lacking RNA binding activity appears able to support low levels of transcription by pol III. While efficient multiround transcription is supported only by mutants that bind RNA and contain a C-terminal basic region. These analyses indicate that RNA binding contributes to but is not sufficient for La transcription factor activity and that the C-terminal domain plays a role in transcription that is distinguishable from simple RNA binding. The transcription factor activity of La can be reversibly inhibited by RNA, suggesting the potential for feedback inhibition of pol III transcription.
Assessment of myelotoxic effects of chemotherapy from early leukopenic response: application of a mathematical model for granulopoiesis.

A recently developed model of the human granulopoietic system had been used to analyze the toxic effects of 5-fluorouracil administered to cancer patients. From this analysis there appeared to be a relationship between the level of the early leukopenic depression and the rate at which the drug kills cells in the marrow. In particular, it may be possible to estimate this kill rate from the extent of the maximal depression in the white blood count during the second or third week after treatment begins. This estimate may be useful when planning modifications in treatment in order to prevent the onset of hematologic crises.
SYNAPTIC INHIBITION IN AN ISOLATED NERVE CELL

Following the preceding studies on the mechanisms of excitation in stretch receptor cells of crayfish, this investigation analyzes inhibitory activity in the synapses formed by two neurons. The cell body of the receptor neuron is located in the periphery and sends dendrites into a fine muscle strand. The dendrites receive innervation through an accessory nerve fiber which has now been established to be inhibitory. There exists a direct peripheral inhibitory control mechanism which can modulate the activity of the stretch receptor. The receptor cell which can be studied in isolation was stimulated by stretch deformation of its dendrites or by antidromic excitation and the effect of inhibitory impulses on its activity was analyzed. Recording was done mainly with intracellular leads inserted into the cell body. 1. Stimulation of the relatively slowly conducting inhibitory nerve fiber either decreases the afferent discharge rate or stops impulses altogether in stretched receptor cells. The inhibitory action is confined to the dendrites and acts on the generator mechanism which is set up by stretch deformation. By restricting depolarization of the dendrites above a certain level, inhibition prevents the generator potential from attaining the "firing level" of the cell. 2. The same inhibitory impulse may set up a postsynaptic polarization or a depolarization, depending on the resting potential level of the cell. The membrane potential at which the inhibitory synaptic potential reverses its polarity, the equilibrium level, may vary in different preparations. The inhibitory potentials increase as the resting potential is displaced in any direction from the inhibitory equilibrium. 3. The inhibitory potentials usually rise to a peak in about 2 msec. and decay in about 30 msec. After repetitive inhibitory stimulation a delayed secondary polarization phase has frequently been seen, prolonging the inhibitory action. Repetitive inhibitory excitation may also be followed by a period of facilitation. Some examples of "direct" excitation by the depolarizing action of inhibitory impulses are described. 4. The interaction between antidromic and inhibitory impulses was studied. The results support previous conclusions (a) that during stretch the dendrites provide a persisting "drive" for the more central portions of the receptor cell, and (b) that antidromic all-or-none impulses do not penetrate into the distal portions of stretch-depolarized dendrites. The "after-potentials" of antidromic impulses are modified by inhibition. 5. Evidence is presented that inhibitory synaptic activity increases the conductance of the dendrites. This effect may occur in the absence of inhibitory potential changes.
Reduction of Disulphide Bonds at Acid pH and Quantitative Estimation of Prolamins from Rye, Wheat and Barley following Separation by Electrophoresis

Storage proteins from three cereal species were reduced at acid pH in the presence or absence of urea. Reactions were usually carried out at 100 °C and pH 3-2, using dithiothreitol as the reductant. Changes in electrophoretic mobility of prolamins in polyacrylamide gels were taken as evidence of protein reduction. One-dimensional polyacrylamide gel electrophoresis, densitometric analyses and computerized evaluation of data were used to quantify reactions. Parameters tested include the influence of time, heat, reductant concentration and the presence or absence of urea. More than 45% of secalin, the alcohol-soluble protein from rye, readily underwent reductive cleavage to yield bands of substantially different mobilities. Results suggest that at least 35% of the alcohol-soluble rye components contain intermolecular disulphide bonds and that at least 12% consist of intramolecular disulphides; other components appear to be already fully reduced or devoid of disulphide linkages. Analogous measurements for gliadins and hordeins showed that at least 10% of these prolamins underwent similar reductions; mobilities of the products suggest that intramolecular linkages are involved. The method employed provides a convenient measure of both the qualitative and quantitative changes associated with the reduction of protein disulphide bonds and the results are important to an understanding of the molecular reactions responsible for the properties of gluten proteins.