cssi/SciSciGPT-SciSciNet huggingface dataset:
Roost tree selection by northern long-eared bat (Myotis septentrionalis) maternity colonies in an industrial forest of the central Appalachian mountains

As part of a bat ecology research effort in managed forests, we tracked seven lactating northern long-eared bats (Myotis septentrionalis Trouessart) to 12 roost trees used by maternity colonies ranging in size from 11 to 65 individuals in the central Appalachians of West Virginia. Lactating females switched among roosts on average every 5 days. Roosts were located in nine tree species, with 11 roosts in tree cavities and 1 under exfoliating bark. Eight of the roosts were located in snags; the other four were located in cavities in living trees. Black locust (Robinia pseudo-acacia L.) snags were selected as a roost sites more than expected based on their occurrence in the forests we surveyed. Only 3 of the 24 habitat characteristics differed between actual roost trees and randomly located cavity trees. Structurally, actual roosts tended to be closer to neighboring trees than did suitable roosts in randomly located cavity trees. Tree species was an important factor that influenced roost tree selection, with black locusts being used significantly more than expected based on their abundance across the managed forest landscape we studied. All northern long-eared bat roosts were located in or below the forest canopy which suggests that solar exposure may not be as critical for selection of roost trees by maternity colonies of this species as opposed to other species of tree-roosting bat at more northern latitudes in North America. Although many previous studies have demonstrated the importance of old-growth habitat in providing roosting habitat for tree-roosting bats, use of roosting habitat and characteristics of roost sites have been little documented within intensively managed forests. Our research indicates that in managed, Allegheny hardwood-northern hardwood forests of the central Appalachians, short-lived, early successional species such as black locust may provide suitable roosting habitat for northern long-eared bats, as well as other species of bats. Published by Elsevier Science B.V.
The purification and amino acid composition of Bovine rhodopsin

Abstract 1. 1.|Two derivatives of bovine rhodopsin, reduced S-carboxymethylated (RCM)-rhodopsin and N-retinylopsin, were prepared. Chromatography of RCM-rhodopsin on Sephadex G-25, and of N-retinylopsin on DEAE-cellulose demonstrated that both derivatives contained only one large polypeptide component. Non-protein components which were isolated from the two rhodopsin derivatives were found to be different. 2. 2.|Disc electrophoresis on 5% cross-linked polyacrylamide gels demonstrated that native bovine rhodopsin is essentially homogeneous in protein. 3. 3.|The amino acid composition of bleached and RCM-rhodopsin was determined and is consistent with the formula Asp18-Thr20-Ser17-Glu21-Pro19-Gly19-Ala22-Cys6-Val20-Met8-Ile14- Leu22-Tyr11-Phe21-Lys13-His6-Arg10 for an approximate molecular weight of 28600.
Systolic Blood Pressure at Rest, Not the Degree of Beta Blockade, Predicts the Result of Follow-Up Tilt-Table Testing for Vasovagal Syncope

Tilt-table testing after therapy with beta blockade is frequently used to predict clinical success. This study found that heart rate and blood pressure reductions after beta-blocker therapy did not predict the results of the follow-up tilt-table test, but low blood pressure at rest before the initial test predicts failure of this therapy.
The gorilla in the room: The impacts of video-game play on visual attention

Early studies of visual attention noted a phenomenon termed 'inattention blindness' - the inability of participants to see clear stimuli enter the visual field when attending to something else in that field - and sought to expand the understanding of the phenomenon (Neisser & Becklen, 1975; Simons & Chabris, 1999; Stoffregen, Baldwin, & Flynn, 1993). Other research has focused on the changes to the human brain and cognitive functions as a result of video game play, both in positive and negative contexts (Howard-Jones, Ott, van Leeuwen, and De Smedt (2010)). This quasi-experimental study sought to corroborate some of the findings that tie together these seemingly disparate lines of research, adapting the methodology of the most cited inattention blindness experiment (Simons & Chabris, 1999).
A CHLORIDE BUDGET FOR THE MISSISSIPPI RIVER, HEADWATERS TO MOUTH

ABSTRACT Mass budgets for chloride were estimated from 1975-1978 for the Mississippi River from headwaters to near the mouth to determine the magnitudes of natural and anthropogenic sources. Annual chloride input from precipitation ranged from about 200 kg mi-2yr-1 at Royalton, Minnesota, to about 350 kg mi-2yr-1 at Vicksburg, Mississippi. Mass export ranged from about 900 kg mi-2yr-1 at Royalton to about 8000 kg mi-2yr-1 at Vicksburg. As much as 80 percent of the residual, the difference between input and export, probably is contributed by anthropogenic sources. In particular, semi-logarithmic scatterplots of monthly total discharge against chloride concentration show that, during early spring, chloride elevations in the Mississippi River and Ohio River are elevated, possibly because of flushing of road salt and leaching of chloride from the accumulated snowpack.
Domains in C n+1 with noncompact automorphism group

We consider certain pseudoconvex domains in C n+1 and show that if the automorphism group is noncompact, then the domain is equivalent to $$E_m = \{ |w|^2 + |z_1 |^{2m} + |z_2 |^2 + \cdots + |z_n |^2< 1\} $$ for some integerm ≥ 1.
Book Review: Ed Kennedy’s War: V-E Day, Censorship, and the Associated Press, by Julia Kennedy Cochran

Julia Kennedy Cochran Ed Kennedy's War: V-E Day, Censorship, and the Associated Press. Baton Rouge, LA: Louisiana State University Press, 2012. 201 pp.This highly readable and informative memoir by Ed Kennedy, arguably the Associated Press's top foreign correspondent during World War II, spans a decade during which he covered the rise of fascism in Spain and Italy, war in Greece and the Balkans, and foreign affairs in the Middle East and North Africa, before circling back to the conti- nent where he served as the Associated Press's Paris Bureau Chief.As a member of an elite press corps invited to be the first to receive word of Germany's surrender, he hurdled over military censors and other journalists to have the news reported in the United States, defying military orders to wait. Kennedy's dispatch flooded the wires and resulted in bold headlines featuring his byline. Politics won out when Kennedy was stripped of his foreign reporting credentials. A firestorm of protests by jealous colleagues over the scoop, compounded by Kennedy's refusal to apologize for the leak to his boss, led to his firing by the Associated Press.Most of Kennedy's memoir, written just after the World War II but published for the first time in 2012, recounts in still-fresh and illuminating detail the challenges of reporting foreign affairs from three continents, all headed for another world war. The book's first four chapters carry readers through his early years in Paris, Spain, Italy, and the Balkans; chapters 5 through 7 focus on his years in the Middle East and North Africa; and chapters 8 through 10 cover his return to Italy and France. By any mea- sure, Kennedy was deeply informed on European affairs and an expert foreign affairs reporter by the time the United States entered World War II in 1941. By then, he was responsible for all A.P. reporting from the Middle East and North Africa and had been reporting on war in Europe and conflicts in French colonies for half a decade.A central theme of the book is the perpetual struggle Kennedy waged against the blunt instruments of wartime press credentialing, as well as actual and de facto censor- ship. Once the United States entered the war, the military cultivated reporters it could use to raise morale and function as the public relations arm of the war effort. Censorship blunted reports of the staggering consequences of combat and bombing, military blun- ders and atrocities. To a remarkable extent, reporters capitulated to requests to kill unfavorable news and instead write soft stories that did not require a foreign language, knowledge of war, or use of expert sources. …
Saying Goodbye: Exploring Attachments as a Therapist Leaves a Group of Chronically Ill Persons

This clinical report highlights some of the processes arising in a therapy group of persons with persistent and chronic psychiatric illnesses as they cope with the stress of their long-standing therapist's impending retirement. Members were initially disbelieving that the therapist would leave and were also concerned about their future care, particularly in terms of medications. Gradually they were more able to experience their feelings of loss and their genuine caring for the therapist and the group, using higher level defenses and increasing their ability to tolerate strong affects. They became increasingly able to demonstrate empathy, notably in their ability to consider the therapist's emotions. The clinical material also illustrates the therapist's personal involvement, countertransferences and expressions of concern.
Integrating Historic and Contemporary Data to Delineate Potential Remnant Natural Woodlands Within Midwestern Agricultural Landscapes

ABSTRACT: Over the last 150 years, agriculturally-productive landscapes of the Midwestern United States have been heavily transformed by human land use; presently, little native vegetation remains and few protected areas exist. Natural areas that have persisted through this extended period of landscape change, however, may comprise important reservoirs of biodiversity and may contain biotic and structural legacies important for understanding and restoring native ecosystems. Here we integrate several data sources (including original Public Land Survey records, state atlases, aerial photography, and forest inventory data) to identify and characterize potential remnant woodlands within the 27,520 ha Clear Creek watershed in eastern Iowa. Analysis across data sources reveals that these woodlands have likely changed substantially in extent, configuration, and composition since pre-Euro-American settlement. While the combination of early data sources reveals substantial deforestation within the watershed, the p...
Experimental and simulated high strain dynamic loading of polyurethane foam

Abstract A test methodology was developed to examine polyurethane foam specimens up to 25 mm thick at strain rates ranging from quasi-static to high rate dynamic (2,600 1/s) at high strain levels (>80%). This was accomplished using a modified Hopkinson bar setup and projectile to dynamically load the foam specimens. A high-speed video camera was used to observe the deformation response at 95,238 frames per second. Strain derived through pixel scaling in the high-speed video was used to create the strain history plots at dynamic loading rates. Experimental data indicated that the polyurethane foam is strain rate sensitive which was also validated using finite element models of the impact event.
Electron paramagnetic resonance W-band spectrometer with a low-noise amplifier

The Mark II W-band (94 GHz) EPR spectrometer with a low-noise millimeter-wave amplifier is described. The microwave bridge is of a high-sensitivity homodyne design. Signal-to-noise ratios were measured for a number of detectors with and without the low-noise amplifier. The signal-to-noise ratio was determined not only by the type of detector but also how well it was matched. Without a microwave preamplifier, a hot-electron bolometer provides the best signal-to-noise ratio. Addition of a low-noise microwave preamplifier to the CW homodyne bridge gives a 10 dB improvement in the noise figure of the receiver at a modulation frequency of 100 kHz. A greater improvement in the signal-to-noise ratio is seen at low modulation frequencies (1–10 kHz), making the low-noise amplifier useful for systems with large linewidths. This allows larger modulation amplitudes to be used without causing significant cavity heating or microphonics. The W-band spectrometer is capable of rapid sweeps from 0 to 7 T, as well as narrower (0.1 T) high-resolution sweeps. It is suitable for a wide variety of samples including liquids and samples cooled to sub-liquid-helium temperatures.
Photo-labile Pigments of the Chicken Retina

THOUGH visual purples of the retinal rods have been known for sixty years1,2, nothing has been learned directly of analogous substances in the cones. In the chicken retina, which contains principally cones, attempts to identify photo-labile pigments heretofore have failed2. I have extracted from it two such pigments.
Comparing Energy and Latency of Asynchronous and Synchronous NoCs for Embedded SoCs

Power consumption of on-chip interconnects is a primary concern for many embedded system-on-chip (SoC) applications. In this paper, we compare energy and performance characteristics of asynchronous (clockless) and synchronous network-on-chip implementations, optimized for a number of SoC designs. We adapted the COSI-2.0 framework with ORION 2.0 router and wire models for synchronous network generation. Our own tool, ANetGen, specifies the asynchronous network by determining the topology with simulated-annealing and router locations with force-directed placement. It uses energy and delay models from our 65nm bundled-data router design. SystemC simulations varied traffic burstiness using the self-similar b-model. Results show that the asynchronous network provided lower median and maximum message latency, especially under bursty traffic, and used far less router energy with a slight overhead for the inter-router wires.
Metal-catalyzed double migratory cascade reactions of propargylic esters and phosphates

Propargylic esters and phosphates are easily accessible substrates, which exhibit rich and tunable reactivities in the presence of transition metal catalysts. π-Acidic metals, mostly gold and platinum salts, activate these substrates for an initial 1,2- or 1,3-acyloxy and phosphatyloxy migration process to form reactive intermediates. These intermediates are able to undergo further cascade reactions leading to a variety of diverse structures. This tutorial review systematically introduces the double migratory reactions of propargylic esters and phosphates as a novel synthetic method, in which further cascade reaction of the reactive intermediate is accompanied by a second migration of a different group, thus offering a rapid route to a wide range of functionalized products. The serendipitous observations, as well as designed approaches involving the double migratory cascade reactions, will be discussed with emphasis placed on the mechanistic aspects and the synthetic utilities of the obtained products.
Current Experience With Renal Transplantation in Older Patients

Older patients (>50 years old) are generally considered to be at high risk in renal transplantation, particularly those receiving cadaveric kidneys. The outcome in 53 older patients (mean age, 54 years; range, 50 to 64 years) receiving transplants between January 1, 1980 and December 31, 1986 and followed through June 30, 1987 were analyzed. Before 1984, immunosuppression consisted of azathioprine and prednisone (AP); thereafter, triple therapy (TT)-low-dose cyclosporine, azathioprine, and prednisone-was used. The overall 1-, 3-, and 5-year actuarial patient survival was 87%, 84%, and 84%, respectively. Survival for living related donor (LRD) transplant recipients was 100%, 92%, and 92%; survival for cadaveric (CAD) transplant recipients was 81%, 81 %, and 81 %. The overall graft survival was 74%, 66%, and 66% at 1, 3, and 5 years, respectively; graft survival was 88%, 81%, and 81% for LRD transplant recipients and 68%, 58%, and 58%, for CAD recipients. The patient and graft survival rates were better in the TT group than in the AP group. Eight patients died after transplantation; six within the first year. The causes of patient death were infection (50%), cardiac (25%), and malignancy (25%). Rejection (56%) and patient death (38%) accounted for most of the grafts lost. Patient and graft survival rates in diabetic patients were not significantly different from survival rates in nondiabetic patients. Results in recipients of ten secondary and one tertiary transplant were poor, with only four of 11 grafts functioning at 1 year. Infectious complications were common, and steroid-induced diabetes occurred in 16% of patients whose grafts functioned > 1 month. It was concluded that results of primary renal transplantation in older patients have significantly improved in recent years. Transplantation should be the preferred modality of treatment for end-stage renal disease in patients aged 50 to 64 years in the absence of obvious contraindications.
Dynamic Expression Evaluator for Real Time Applications

A dynamic expression evaluator developed for on-line data analysis gives experimenters at LBL's 88-Inch Cyclotron and SuperHILAC both flexibility and high throughput. It uses standard FORTRAN rules for expressions, including operator precedence, and allows built-in functions such as sine and cosine. Evaluation techniques utilizing a combination of FORTRAN and Assembly, and XPL (a dialect of PL/1) have been compared. An XPL evaluator was selected because of development time and evaluator speed and can evaluate expressions at approximately 50 usec per operand on a ModComp Classic 7870 with 20 usec overhead per expression.
Synthesis of nonuniform antenna arrays using lambda functions

This paper presents a new method for the synthesis of nonuniformly spaced arrays. By means of the Cheby?shev-Gauss quadrature and the Hankel transform, the space factor of an array and a prescribed radiation pattern can be reduced into the same form in terms of the lambda functions. By equating the coefficients of the lambda functions, the element excitation can be determined directly. The synthetised array simulates the prescribed pattern with a high degree of precision. This is demonstrated by an example in which an array is synthetised to produce the Taylor pattern.
Testing the effectiveness of the Amputee Mobility Protocol: a pilot study

We studied prolonged length of stay (LOS) in the acute care setting on a medical-surgical vascular unit, related to loss of functional mobility status after lower extremity amputation, and implementation of the Amputee Mobility Protocol (AMP) as a standard of care for all patients pre- and post-lower extremity amputation who were admitted to the medical-surgical vascular unit. A comparative pre–post observational study evaluated the effect of AMP on level of functional mobility and LOS after lower extremity amputation in the patient population on the medical-surgical vascular unit. Data was collected retrospectively from patient chart reviews from November of 2004 to March of 2005 for the pre-AMP group and through concurrent patient chart reviews from November of 2005 to March of 2006 for the post-AMP group. Dependent variables included functional mobility and LOS, which were evaluated by a modified Functional Independence Measure (FIM) score and the hospital LOS. Forty-four eligible patients were enrolled in the AMP pilot study during a 5-month period. The sample population consisted of 30 patients pre-AMP and 14 patients post-AMP. LOS for transmetatarsal amputations decreased by 0.7 days, whereas functional mobility increased by a minimum of one level in the modified FIM score. Functional mobility increased for transtibial amputations by one level and transfemoral amputations by 2 levels using the modified FIM score. LOS increased for patients undergoing transtibial (7.1 days) and transfemoral (2.7 days) amputations. This quality improvement project heightened staff awareness regarding ambulation and its impact on functional mobility and early discharge. Vascular nurses were able to affect patients' functional mobility and LOS by implementing a standardized AMP. Data showed that using the standardized AMP increased patients' functional mobility but did not significantly decrease acute care setting LOS. The AMP continues to be used for this patient population because of its impact on functional mobility and independence. This pilot study relates to 3 of the top 20 vascular research priorities: 1) an interdisciplinary strategy to improve the patient's level of functional independence and thereby decrease LOS and cost; 2) the nursing intervention of early, predetermined ambulation schedules will increase the nursing knowledge of strategies that facilitate recovery after vascular surgery in this population; and 3) factors that affect patient outcomes after these three major vascular procedures will be addressed in pilot outcomes. Limitations of the AMP pilot study included the small sample size, staff turnover, and lack of a concurrent control group. The next phase of this project will create and implement a similar activity protocol for patients after abdominal aortic aneurysm repair and various types of lower extremity bypass procedures.
Hyperspectral fluorescence tomography of quantum dots

Hyperspectral excitation-resolved fluorescence tomography (HEFT) exploits the spectrally-dependent absorption properties of biological tissue for recovering the unknown three-dimensional (3D) fluorescent reporter distribution inside tissue. Only a single light source with macro-illumination and wavelength-discrimination is required for the purpose of light emission stimulation and 3D image reconstruction. HEFT is built on fluorescent sources with a relatively broad spectral absorption profile (quantum dots) and a light propagation model for strongly absorbing tissue between wavelengths 560 nm and 660 nm (simplified spherical harmonics - SPN, - equations). The measured partial current of fluorescence light is cast into an algebraic system of equations, which is solved for the unknown quantum dot distribution with an expectation-maximization (EM) method. HEFT requires no source-detector multiplexing for 3D image reconstruction and, hence, offers a technologically simple design.
The effects of heat and stannous chloride addition on the active distillation of acid volatile sulfide from pyrite-rich marine sediment samples

Iron monosulfides are important intermediates in pyrite formation, and are operationally defined as sulfides soluble in concentrated hydrochloric acid. A number of variations are currently employed in their isolation and quantification. In this study, the active distillation of acid volatile sulfide from sediment samples was studied to determine the effects of stannous chloride and heat. The addition of SnCl2 caused recovery of sulfide to increase by 20% during distillations performed at room temperature. If distillations with SnCl2 were then heated and boiled, recovery increased by up to 100%. Tests with 98% pure pyrite and elemental sulfur showed that these compounds were reduced to sulfide in solutions of 15% and 20% SnCI2 in boiling 6N HCI, and that these reactions were grain size dependent. The compounds were not significantly reduced by solutions of SnCI2 at room temperature, or by boiling 6N HCl not containing SnCl2.
Disruption of signaling by Yersinia effector YopJ, a ubiquitin-like protein protease.

Homologs of the Yersinia virulence effector YopJ are found in both plant and animal bacterial pathogens, as well as plant symbionts. These YopJ family members were shown to act as cysteine proteases. The catalytic triad of the protease was required for inhibition of the mitogen-activated protein kinase (MAPK) and nuclear factor κB (NF-κB) signaling in animal cells and for induction of localized cell death in plants. The substrates for YopJ were shown to be highly conserved ubiquitin-like molecules, which are covalently added to numerous regulatory proteins. YopJ family members exert their pathogenic effect on cells by disrupting this posttranslational modification.
Effects of grazing on the quantity and quality of freshwater Aufwuchs

Qualitative and quantitative measures of the Aufwuchs (scum flora) on artificial substrates in situ were used to evaluate the effects of grazing by freshwater pulmonate snails in a shallow pond in southeastern Michigan. Grazer densities of ∼ 216 snails/m2 marked reduced standing crop so that after 45 days grazed substrata had 6.46 mg dry weight, 604 µg C and 4.18 µg chlorophyll a as compared to controls with 30.62 mg dry weight, 3699 µg C and 6.29 µg chlorophyll a, all on a per dm2 basis.
SU(5) and the invisible axion

Dine, Fischler, and Srednicki have proposed a solution to the strong CP puzzle in which the mass and couplings of the axion are suppressed by an inverse power of a large mass. We construct an explicit SU(5) model in which this mass is the vacuum expectation value which breaks SU(5) down to SU(3) ⊗ SU(2) ⊗ U(1).
Performance In A Small Package: The New General Electric (GE) FPS Vidicons

The FPS vidicon which is a magnetic focus, electrostatic deflection design has clear advantages over other design combinations. These include high, uniform resolution; low shading and low distortion; low power; small size and ruggedness. New, shorter tubes are described. These include a 1-inch diameter tube with about 3.1 inch length overall, yielding 75% MTF at 400 TV lines; and a 5/8-inch tube with 2.3 inch length with 50% MTF at 400 TV lines. The reasons for the high performance are discussed; the possibility of making still smaller vidicons is considered, indicating that vidicons with image diagonals as small as 0.2 inches are feasible.
Re-induction of complete remissions in adults with acute non-lymphocytic leukemia

Abstract Thirty-five adults with acute non-lymphocytic leukemia in relapse following an initial remission were treated with intensive combination chemotherapy. Each patient received one of three re-induction programs which had already proven effective in the treatment of newly-diagnosed patients. Twenty (57%) of the patients undergoing re-induction therapy achieved complete remission. Clinical features which predicted a favorable response to therapy were female gender, rapid achievement of first remission, absence of infection, low plasma fibrinogen and serum LDH levels, and normal hepatic enzymes. Patients were more likely to respond if they also received at least one chemotherapeutic agent during re-induction to which they had not been previously exposed. The median duration of complete remission was 4.4 months (range 1–94+ months). Second remissions lasted over one year in four patients and two patients currently remain in complete remission at 49 and 94 months. Median survival for all patients who achieved remission was 10 months compared to only 2.5 months for those failing therapy. Since the re-induction of complete remission prolongs survival and can be accomplished in the majority of patients with leukemia in relapse, consideration should be given to using established intensive treatment programs prior to experimental chemotherapy in adults with advanced leukemia.
PSYCHIATRIC ADJUSTMENT IN CHILDREN WITH CHRONIC RENAL FAILURE

Problems in psychiatric adjustment were found to be more common in children and adolescents with chronic renal failure (22 subjects on hospital haemodialysis and 22 with less severe renal failure) than in healthy matched controls. There was a trend towards more definite and marked psychological difficulties in patients with more severe renal condition. However, the less severely physically ill children tended to have increased difficulties in school adjustment and they reported more feelings of loneliness. The findings have implications on the management of children with chronic renal failure.
On optimality in collective institutional choice

Abstract Conditions are investigated under which democratic choice of the division of land between collective and “private” use and of the distribution of collective income between “needs” and “work” payments will produce a Pareto-optimal land allocation and optimal collective labor incentives. Sen's optimal rule for the degree of “needs” distribution is found to result from self-interested voting on this parameter when the distribution of labor inputs is unskewed or when votes are weighted by labor contributions. This in turn increases the optimality of land allocation, which can be further improved by a simple rental scheme. J. Comp. Econ. , Dec. 1981, 5 (4), pp. 392–403. Brown University, Providence, Rhode Island.
Programme-ad congruence: integrating advertising and entertainment

This investigation builds on previous research streams to introduce a new concept – programme–ad congruence – into advertising research. Programme–ad congruence is defined as the integration of the entertainment into the advertisement. This research identifies three specific types of congruence (actor congruence – matching the people; plot congruence – matching the situations; and language congruence – matching the verbal elements) and uses experimental design to test viewer response in three separate studies. Results indicate an overall effect of programme–ad congruence and demonstrate that each type of programme–ad congruence has a significant effect on consumer response. Moreover, involvement was found to mediate the effect of congruence, indicating it may play a significant role in the process by increasing the personal relevance of the advertisement. Implications are provided.
Exciton trapping and sensitized luminescence: A generalized theory for all trap concentrations

The generalized-master-equation theory of sensitized luminescence in molecular crystals is extended to cover arbitrary guest concentrations by making use of a recently introduced formalism. Central to the formalism is a quantity termed the $\ensuremath{\nu}$ function, which is an ensemble average of the sum of host propagators over guest-influenced host sites. A variety of experimentally relevant sensitized luminescence observables, such as the host (and guest) luminescence intensity, the quantum yields, and the energy-transfer rates are simply related to the $\ensuremath{\nu}$ function. It is shown how the latter can be calculated for exciton motion possessing an arbitrary degree of coherence, dimensionality, and other transport characteristics, and for guest-molecule placement represented by any given pair correlation function. Specific cases are treated and results, some exact and others approximate, are presented for experimental observables.
The reaction Na23 (p,α) Ne20 from 3 to 12 MeV

Abstract We have measured the excitation curves for the ground-state and first-excited state alpha-particle groups from the reaction Na23 (p,α) Ne20 between 3 and 12 MeV proton energy, as well as angular distributions for the ground-state and first three excited-state alpha transitions, at 10.0 MeV bombarding energy. Excited states of Ne20 up to the tenth were observed, including two new ones at 5.80 and 7.02 MeV.
The bioavailability of sediment-sorbed organic chemicals: A review

Xenobiotic chemicals that are present in aquatic environments are typically concentrated on suspended particles and sedimentary materials where they represent a source of chronic contamination to benthic and pelagic organisms. Laboratory and field studies of bioaccumulation, toxicity, and food-chain transfer of chemicals bound to sediment have shown the potential ecological impacts that may result from the contamination of sediments. In this review, the chemical and physical processes that determine the environmental fate of sediment-sorbed organic chemicals are outlined, and their relationship to bioavailability is discussed. Methods currently used to predict the fate of pollutants in the aquatic environment are of limited use for the assessment of sediment-sorbed chemical bioavailability because they are based on the compound's behavior in the water column. Furthermore, an organism's morphology and ecological niche can profoundly affect its ability to accumulate xenobiotic chemicals from sediments and these must be considered before the populations at greatest risk can be identified.
Sol-gel synthesis of hybrid organic-inorganic materials. Hexylene- and phenylene-bridged polysiloxanes

New highly cross-linked polysiloxanes were prepared by sol-gel polymerization of 1,6-bis(diethoxymethylsilyl)hexane (1) and 1,4-bis(diethoxymethylsilyl)benzene (2). Hydrolysis and condensation of 1 and 2 under acidic and basic conditions with 4 equiv of water led to the rapid formation of hexylene- and phenylene-bridged polysiloxane gels. The dry gels (xerogels) were intractable, insoluble materials that were noticeably hydrophobic, exhibiting no swelling in organic solvents or water. Most of the xerogels were high surface area, mesoporous materials. Hexylene-bridged polysiloxanes prepared under acidic conditions were always nonporous regardless of whether they were processed to afford xerogels or supercritically dried as aerogels. Hexylene-bridged polysiloxanes prepared under basic conditions and all of the phenylene-bridged polysiloxanes were mesoporous with surface areas as high as 1025 m{sup 2}/g. 35 refs., 9 figs., 3 tabs.
Detection of Target Proteins by Fluorescence Anisotropy

Understanding molecular interactions is critical to understanding most biological mechanisms of cells and organisms. In the case of small molecule–protein interactions, many molecules have significant biological activity through interactions with unknown target proteins and by unknown modes of action. Identifying these target proteins is of significant importance and ongoing work in our laboratories is developing a technique termed Dynamic Isoelectric Anisotropy Binding Ligand Assay (DIABLA) to meet this need. Work presented in this manuscript aims to characterize the fundamental parameters affecting the use of fluorescence anisotropy to detect target proteins for a given ligand. Emphasis is placed on evaluating the use of fluorescence anisotropy as a detection mechanism, including optimization factors that affect the protein detection limit. Effects of ligand concentration, pH, and nonspecific binding are also examined.
Study of effects of radio-wave frequency radiation emitted from cellular telephones on embryonic development of danio rerio

Radio wave frequency (RF) radiation emitted from cellular telephones has become increasingly ubiquitous as a result of the popularity of these phones. With the increasing and unavoidable exposure to RF radiation a reality, it is imperative that the effects of such radiation on living tissue be well understood. In particular, it is critical to understand any effects that RF radiation may have as a carcinogen and on embryonic development, as pregnant women are not exempt from such exposure. As a model organism, zebrafish ( Danio rerio ) have been studied extensively, and their value in studies of gene expression cannot be overstated. This study observed the effects of RF radiation on the embryonic development of zebrafish. The expression of two genes, shha and hoxb9a , that are key to the early development of the fish was examined. Both genes have homologs in humans as well as in other model organisms. Preliminary results suggest that exposure to cell phone radiation might have an effect on the expression of shha in zebrafish embryos, causing under expression. More trials are necessary to validate these results.
On Dynamic Feedback Compensation and Compactification of Systems

This paper introduces a compactification of the space of proper $p\times m$ transfer functions with a fixed McMillan degree $n$. Algebraically, this compactification has the structure of a projective variety and each point of this variety can be given an interpretation as a certain autoregressive system in the sense of Willems. It is shown that the pole placement map with dynamic compensators turns out to be a central projection from this compactification to the space of closed-loop polynomials. Using this geometric point of view, necessary and sufficient conditions are given when a strictly proper or proper system can be generically pole assigned by a complex dynamic compensator of McMillan degree $q$.
Multipass slab Nd:glass amplifier

The aim of this research is to develop a repetition multi- pass Nd:glass slab amplifier with output energy range of joules. A Nd: glass slab amplifier was developed with a high efficient repetition. Some analyze and experimental researchers, such as the gain, gain distribution, thermal effect, store energy and efficiency, etc. have been done. The maximum storage efficiency of the amplifier is up to 2.1 percent. A multi-pass amplification system by the Nd:glass slab amplifier was set up. Further analyze and experimental researches were carried out on some characters, such as the structure energy fluent distribution, amplification character, beam quality, ASE and self-Las character, etc. The experimental result shows that the amplifier produce the output energy of 1J with beam quality of six times diffraction limit.
Sequence and expression of a cDNA encoding the mouse homologue of the rat ribosomal protein L28

A cDNA encoding the mouse homologue of the rat ribosomal protein L28 was isolated from an adult mouse total testis cDNA library. The L28 cDNA contained a single long open reading frame and exhibited a high degree of conservation to rat L28 at both the nucleotide and amino-acid levels. Northern blot hybridization analysis detected a single transcript in embryo, placenta and adult tissues.
Responses of Heterodera glycines and Meloidogyne incognita to exogenously applied biogenic amines

Hatching and head movement behaviours of second-stage juvenile (J2) of two agriculturally important plant-parasitic nematodes were affected by the in vitro application of biogenic amines. The behavioural responses of Heterodera glycines and Meloidogyne incognita to treatments of serotonin, octopamine and dopamine were qualitatively similar, but significant quantitative differences between the species were revealed. The frequency of J2 head movement was decreased by as little as 250 μM serotonin in H. glycines and 500 μM serotonin in M. incognita, with effective doses (ED50) of 0.73 mM for H. glycines and 1.72 mM for M. incognita. Octopamine had the opposite effect of serotonin, increasing J2 head movement frequency at thresholds of 2 mM in H. glycines and 1 mM in M. incognita. Octopamine ED50 values were 32.35 mM and 1.91 mM, respectively. Dopamine had no effect on head movement in either species up to concentrations of 20 mM. Serotonin inhibited hatch in both species but was more potent against H. glycines (90% inhibition at 1 mM) than M. incognita (40% inhibition at 5 mM). Octopamine reduced hatch equally in both species with over 95% inhibition at 80 mM. Dopamine had no effect on hatch in M. incognita but did inhibit H. glycines hatch over 60% at 40 mM. The value of detailed quantitative analyses of plant-parasitic nematode responses to biogenic amines for studies on nematode control is discussed.
Implicit Identification with Academic Achievement among Latino College Students: The Role of Ethnic Identity and Significant Others

Two studies were conducted to test the hypothesis that identification with academic achievement among Latino college students was related to the extent to which their ethnic group and significant others were linked to academic achievement. Participants completed a series of implicit association tests measuring the interrelations among academic achievement, self, and ethnic groups (Study 1) or significant others (Study 2). Study 1 revealed that the more college students identified with Latinos (relative to Caucasians) and stereotyped Latinos as low academic achievers (relative to Caucasians), the less they identified with academic achievement. Study 2 showed that the more Latino college students identified with significant others and viewed these significant others as high academic achievers, the more they identified with academic achievement. These findings are consistent with principles of cognitive consistency and stress the socio-relational facets of the academic self-concept.
Resilience and Healing Among Cambodian Survivors of the Khmer Rouge Regime.

In this article the author presents a qualitative study about resilience and healing among Cambodian survivors of the communist Khmer Rouge regime. The database of the Documentation Center of Cambodia (DC-Cam) was used to analyze 30 stories of people who survived but lost family members during the Khmer Rouge regime. The participants acted as civil parties in the Cambodian tribunal involving a trial of “Duch,” the head of Tuol Sleng prison or (s21), where survivors’ relatives were interrogated, tortured, and killed. Participation in the DC-Cam investigations and in the trial were seen as healing, resiliency factors. Resilience is a person–environment concept that addresses how people and societies overcome/recover from adverse or traumatic events. Resilience was revealed here through people's narratives of critical events that occurred at the personal, interpersonal, sociocultural, and societal levels. Thus, the participants’ stories allow us to hear the “truth” of these experiences, how they have made me...
Direct measurement of circulation using ultrasound

Ultrasound time-of-flight methods employing counter-propagating ultrasonic pulses are utilized for the direct measurement of circulation in vortical flows. Two schemes are described here which involve either a single straight path or a closed path. Both techniques are shown to result in time differences, between the counter-propagating pulses around the path, linearly proportional to the circulation enclosed by the ultrasound path. The ultrasound methods of circulation measurement do not require calibration constants and can be non-invasive. The reliability of the closed path ultrasound method was assessed by comparing the measured circulation values with those calculated from the lift measurements of a NACA 0012 airfoil. Two examples are also presented where the closed path ultrasound method has been applied to the flow over a delta wing and a free-surface vortex in a cylindrical tank.
Phase-Locked-Loop Detection of Binary PSK Signals Utilizing Decision Feedback

A modified quadrature channel phase-locked-loop demodulator for binary phase-shift-keyed signals is presented. The modification, called decision feedback, is a practical implementation of decisiondirected channel measurement. Noise analyses are carried out for both additive and phase noise. An optimum loop filter is derived and the analyses include determination of probability of error for the system. The results of an analog simulation of the decision feedback technique are also included.
Oxidation of PAH trans-Dihydrodiols by Human Aldo-Keto Reductase AKR1B10

AKR1B10 has been identified as a potential biomarker for human nonsmall cell lung carcinoma and as a tobacco exposure and response gene. AKR1B10 functions as an efficient retinal reductase in vitro and may regulate retinoic acid homeostasis. However, the possibility that this enzyme is able to activate polycyclic aromatic hydrocarbon (PAH) trans-dihydrodiols to form reactive and redox-active o-quinones has not been investigated to date. AKR1B10 was found to oxidize a wide range of PAH trans-dihydrodiol substrates in vitro to yield PAH o-quinones. Reactions of AKR1B10 proceeded with improper stereochemistry, since it was specific for the minor (+)-benzo[a]pyrene-7S,8S-dihydrodiol diastereomer formed in vivo. However, AKR1B10 displayed reasonable activity in the oxidation of both the (−)-R,R and (+)-S,S stereoisomers of benzo[g]chrysene-11,12-dihydrodiol and oxidized the potentially relevant, albeit minor, (+)-benz[a]anthracene-3S,4S-dihydrodiol metabolite. We find that AKR1B10 is therefore likely to play a...
Modeling and Simulation of Body-on-Frame Vehicles for Frontal Impact Sensing Tests

A capability for modeling and simulating frontal impact tests required by the crash sensing calibration task during the development process of a new motor vehicle is presented. The capability is applicable to the body-on-frame (BOF) vehicles such as light trucks and sport utility vehicles. Critical modeling techniques and guidelines for building a high fidelity frontal impact finite element BOF vehicle model were developed and validated using 15 full vehicle crash tests. The modeling techniques and guidelines can be used to model and simulate a suite of frontal impact sensing tests for BOF vehicles. Such a math-based capability could significantly reduce the development time and cost of a new light truck or sport utility vehicle.Copyright © 2006 by General Motors Corporation
Optical properties of polycrystalline CdSe films

The optical properties of polycrystalline CdSe films prepared using electroless deposition techniques are discussed. Refractive index measurements are reported for the wavelength region 400–2000 nm. Extinction and absorption coefficient measurements are reported for the strong absorption regime (450–750 nm). UV reflectance measurements are also discussed.
Thermal Response in Laminated Composites

A semi-infinite laminated composite in which the matrix and filler material are aligned parallel to the heat propagation direction is considered. At x = 0, there is applied a harmonic boundary heat flux of y-periodicity conforming to the periodicity of the layered composite. The Fourier integral solution is decomposed into normal modes. It is shown that this decomposition (which necessitates solution of a complex eigenvalue problem) permits expansion of complex boundary excitation into complex eigenfunctions, the Fourier coefficients being determined by the method of residues. A composite consisting of a nickel matrix and an aluminium filler is considered as a representative example. Real and imaginary parts of the calculated boundary flux are shown to approach the prescribed values, 1 and 0, respectively. The ensuing temperature distribution throughout the composite is also illustrated. Es wird ein halbunendlicher geschichteter Verbundstoff betrachtet, in dem Grund- und Fullmaterial parallel zur Warmeausbreitungsrichtung angeordnet sind. Bei x = 0 moge durch den Rand ein harmonischer Warmestrom fliesen, dessen Periodizitat in y mit derjenigen des geschichteten Verbundstoffes ubereinstimmt. Die Fourier-Integral-Losung wird in Normalformen zerlegt. Es wird gezeigt, das die Zerlegung, die die Losung eines komplexen Eigenwertproblems notwendig macht, die Entwicklung der komplexen Randerregung in komplexe Eigenfunktionen gestattet. Die Fourierkoeffizienten werden mit Hilfe des Residuenkalkuls bestimmt. Ein aus Nickel als Grundstoff und Aluminium als Fullstoff bestehender Verbundstoff wird als reprasentatives Beispiel betrachtet. Es wird gezeigt, das Real- und Imaginarteil des berechneten Randwarmeflusses sich den vorgeschriebenen Werten, 1 bzw. 0, annahern. Die so ermittelte Temperaturverteilung im Verbundstoff wird auch graphisch dargestellt.
Characterization of sialyltransferase activity from human placenta.

Crude soluble sialyltransferase (CMP-N-acetylneuraminate:d-galactosylgylcoproteinN-acetylneuraminyltransferase, EC 2.4.99.1) activity from human placenta is characterized with acid-treated fetuin and ceruloplasmin as acceptors. Two forms of sialyltransferase in human placental extract can be demonstrated by using either Sephadex G-200 or concanavalin-A-Sepharose column chromatography. The large species (apparent molecular weight larger than 200 000) does not bind to concanavalin-A Sepharose, while the small one (apparent molecular weight about 80 000) does bind to concanavalin-A-Sepharose, and can be eluted with 5% α-methylmannoside. The Km values of the CMP-sialic acid substrate are different for these two forms of sialyltransferase. No divalent cation requirement can be demonstrated, and 10 mM EDTA stimulates the reaction 2–3-fold. Folic acid and its derivatives, including methotrexate, are inhibitory at concentrations of millimolar range. Kinetic studies indicate that folic acid acts as a competitive inhibitor with a K1 of 1.1 mM. While heparin inhibits the transferase reaction, protamine acts as a stimulator in this crude preparation. Sialyltransferase activity is inhibited by 0.1 M iodoacetate and 1 mM p-chloromercuribenzoyl sulfonate, suggesting that an intact sulfhydryl group of a methionine residue is involved in the active site of the enzyme.