922 resultados para Bull Run, 2nd Battle of, Va., 1862.


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The Samuel Avon Smith Diary is a journal written Samuel Avon Smith who was a Confederate soldier during the American Civil War (Company H, 5th Regiment, SC) and a doctor. The journal was written from ca. 1830-1876 or beyond (some pages have been destroyed). The first part is a reminiscence of his life from 1830 to ca. 1873 and from that point on he gives a monthly account of life in Bullock’s Creek, SC. Subjects covered in the journal are the battles of Manassas and Seven Pines, Confederate Troops at Leesburg, the reorganization of the Confederate Army, the march to Richmond, the conditions of the troops, wounds received at the battle of Seven Pines and his medical treatment at the Confederate hospital in Manchester, Virginia, his education at the Ebenezer Academy and the Medical College of SC in Charleston; his life, practice, and health conditions in Gaston County, NC, Lincoln County, NC, and in Bullock’s Creek, SC; and sentiments towards the reconstruction government and Ku Klux Klan. There is also mention of a conflict between Blacks and Whites in Chester County, SC in 1871.

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This Bratton Family Papers consist of a Yorkville Enquirer account (1903) of the unveiling of a monument by the King’s Mountain Chapter of the D.A.R. in commemoration of the Battle of Huck’s Defeat at Brattonsville, a newspaper account concerning the influence on Thomas Dixon and his writing the Klansman(Charlotte Observer, July 14, 1963); a biographical sketch of James Rufus Bratton, and a description of Brattonsville.

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Table of Contents: America’s Birds: In an Alarming State Snakes Alive! Title Sub Title East Coast Wetlands Are Disappearing Chief’s Corner: What We Do Now Extreme Makeover for Bird Sightings by Mike Carlo Taking Care of Our World War II Legacy by Lisa Matlock Whatever Happened to . . . . San Francisco Bay Wetland Restoration Projects Recalling the Battle of Long Island Sound by David Klinger Bold Approaches for Climate Change How Alligator River Refuge Is Planning and Adapting by Mike Bryant Rapid Climate Change Is Transforming the Arctic by David Payer Tracking Change on Wildlife Refuges by Kathy Granillo Where SLAMM Foretells a Wetter Future Reviving the Land – and the Air by Bob Ford and Pete Jerome Connecting the Conservation Landscape a New Priority by Mike Scott and Bob Adamcik Awards for Refuge System Palmyra Atoll Refuge Becomes Ramsar Site Not So Strategic Habitat Conservation: A True Story by David Viker Putting Food on Alaskan Tables by Andy Aderman

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In this work, we present a numerical study of the use of reconfigurable arrays (RCA) for vibro-acoustography (VA) beam formation. A parametric study of the aperture selection, number of channels, number of elements, focal distance, and steering parameters is presented to show the feasibility and evaluate the performance of VA imaging based on RCA. The transducer aperture was based on two concentric arrays driven by two continuous-wave or toneburst signals at slightly different frequencies. The mathematical model considers a homogeneous, isotropic, inviscid medium. The point-spread function of the system is calculated based on angular spectrum methods using the Fresnel approximation for rectangular sources. Simulations considering arrays with 50 x 50 to 200 x 200 elements with number of channels varying in the range of 32 to 128 are evaluated to identify the best configuration for VA. Advantages of two-dimensional and RCA arrays and aspects related to clinical importance of the RCA implementation in VA, such as spatial resolution, image frame rate, and commercial machine implementation, are discussed. It is concluded that RCA transducers can produce spatial resolution similar to confocal transducers and steering is possible in the elevational and azimuthal planes. Optimal settings for number of elements, number of channels, maximum steering, and focal distance are suggested for VA clinical applications. Furthermore, an optimization for beam steering based on the channel assignment is proposed for balancing the contribution of the two waves in the steered focus.

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Abstract Background Pregnancy in adolescence tends to repeat over generations. This event has been little studied in middle and low-income societies undergoing a rapid epidemiological transition. To assess this association it is important to adjust for socioeconomic conditions at different points in lifetime. Therefore, the aim of this study is to analyze the independent effect of adolescent childbearing in a generation on its recurrence in the subsequent generation, after adjusting for socioeconomic status at different points in life. Methods The study was conducted on a prospective cohort of singleton liveborn females from the city of Ribeirão Preto, Brazil, evaluated in 1978/79, and their daughters assessed in 2002/04. A total of 1059 mother-daughter pairs were evaluated. The women who had their first childbirth before 20 years of age were considered to be adolescent mothers. The risk of childbearing in adolescence for the daughter was modeled as a function of the occurrence of teenage childbearing in her mother, after adjustment for socio-demographic variables in a Poisson regression model. Results The rate of childbearing during adolescence was 31.4% in 1978/79 and 17.1% in 2002/04. Among the daughters of the 1st generation adolescent mothers, this rate was 26.7%, as opposed to 12.7% among the daughters of non adolescent mothers. After adjustments the risk of adolescent childbearing for the 2nd generation was 35% higher for women whose mothers had been pregnant during adolescence – RR = 1.35 (95% CI 1.04-1.74). Conclusion Adolescent childbearing in the 1st generation was a predictor of adolescent childbearing in the 2nd, regardless of socioeconomic factors determined at different points in lifetime.

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Objective: To evaluate the frequency of anti-Toxocara spp. antibodies in an adult healthy population. Methods: The study was performed by interviewing 253 blood donors, from 19 to 65 years of age, in a hematological centre in Presidente Prudente, São Paulo, southeast Brazil. A survey was applied to blood donors in order to evaluate the possible factors associated to the presence of antibodies, including individual (gender and age), socioeconomic (scholarship, familial income and sanitary facilities) and habit information (contact with soil, geophagy, onycophagy and intake of raw/undercooked meat) as well as the presence of dogs or cats in the household. ELISA test was run for detection of the anti-Toxocara spp. IgG antibodies. Bivariate analysis followed by logistic regression was performed to evaluate the potential risk factors associated to seropositivity. Results: The overall prevalence observed in this study was 8.7% (22/253). Contact with soil was the unique risk factor associated with the presence of antibodies (P=0.0178 ; OR=3.52; 95% CI=1.244-9.995) Conclusions. The results of this study reinforce the necessity in promoting preventive public health measures, even for healthy adult individual, particularly those related to the deworming of pets to avoid the soil contamination, and hygiene education of the population.

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n the last few years, the vision of our connected and intelligent information society has evolved to embrace novel technological and research trends. The diffusion of ubiquitous mobile connectivity and advanced handheld portable devices, amplified the importance of the Internet as the communication backbone for the fruition of services and data. The diffusion of mobile and pervasive computing devices, featuring advanced sensing technologies and processing capabilities, triggered the adoption of innovative interaction paradigms: touch responsive surfaces, tangible interfaces and gesture or voice recognition are finally entering our homes and workplaces. We are experiencing the proliferation of smart objects and sensor networks, embedded in our daily living and interconnected through the Internet. This ubiquitous network of always available interconnected devices is enabling new applications and services, ranging from enhancements to home and office environments, to remote healthcare assistance and the birth of a smart environment. This work will present some evolutions in the hardware and software development of embedded systems and sensor networks. Different hardware solutions will be introduced, ranging from smart objects for interaction to advanced inertial sensor nodes for motion tracking, focusing on system-level design. They will be accompanied by the study of innovative data processing algorithms developed and optimized to run on-board of the embedded devices. Gesture recognition, orientation estimation and data reconstruction techniques for sensor networks will be introduced and implemented, with the goal to maximize the tradeoff between performance and energy efficiency. Experimental results will provide an evaluation of the accuracy of the presented methods and validate the efficiency of the proposed embedded systems.

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L’ucronia (Alternate History) è un fenomeno letterario ormai popolare e molto studiato, ma non lo sono altrettanto lo sue origini e i suoi rapporti con la storia “fatta con i se” (Counterfactual History), che risale a Erodoto e a Tito Livio. Solo nell’Ottocento alcuni autori, per vie largamente autonome, fecero della storia alternativa un genere di fiction: Louis Geoffroy con Napoléon apocryphe (1836), storia «della conquista del mondo e della monarchia universale», e Charles Renouvier con Uchronie. L’utopie dans l’histoire (1876), storia «della civiltà europea quale avrebbe potuto essere» se il cristianesimo fosse stato fermato nel II secolo. Questi testi intrattengono relazioni complesse con la letteratura dell’epoca di genere sia realistico, sia fantastico, ma altresì con fenomeni di altra natura: la storiografia, nelle sue forme e nel suo statuto epistemico, e ancor più il senso del possibile - o la filosofia della storia - derivato dall’esperienza della rivoluzione e dal confronto con le teorie utopistiche e di riforma sociale. Altri testi, prodotti in Inghilterra e negli Stati Uniti nello stesso periodo, esplorano le possibilità narrative e speculative del genere: tra questi P.s’ Correspondence di Nathaniel Hawthorne (1845), The Battle of Dorking di George Chesney (1871) e Hands Off di Edward Hale (1881); fino a una raccolta del 1931, If It Had Happened Otherwise, che anticipò molte forme e temi delle ucronie successive. Queste opere sono esaminate sia nel contesto storico e letterario in cui furono prodotte, sia con gli strumenti dell’analisi testuale. Una particolare attenzione è dedicata alle strategie di lettura prescritte dai testi, che subordinano i significati al confronto mentale tra gli eventi narrati e la serie dei fatti autentici. Le teorie sui counterfactuals prodotte in altri campi disciplinari, come la storia e la psicologia, arricchiscono la comprensione dei testi e dei loro rapporti con fenomeni extra-letterari.

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Der Forschungsgegenstand der vorliegenden Arbeit war die Identifikation und Interpretation von Traumata an menschlichen Skeletten. Neben einer umfassenden Darstellung des aktuellen Kenntnisstandes unter verschiedenen Gesichtspunkten wurden menschliche Überreste aus der Schlacht von Dornach 1499 n. Chr. untersucht. Ergänzend wurde eine Versuchsreihe mit Replika mittelalterlicher Waffen an Kunstköpfen durchgeführt. Für die Ansprache und Kategorisierung von Traumata an Skelettfunden existiert kein einheitliches und allgemein gebräuchliches System. Die verschiedenen Herangehensweisen und ihre Vor- und Nachteile wurden benannt und diskutiert. Nachfolgend wurden die Erscheinungsformen prä-, peri- und postmortaler Traumata bzw. Defekte sowie von Verletzungen durch stumpfe und scharfe Gewalt, Schussverletzungen und anderen Verletzungsarten dargestellt. Weitere besprochene Aspekte waren die Abgrenzung von Traumata gegen pathologische Veränderungen und anatomische Varianten sowie eine Diskussion der Methodik und Problematik der Erfassung von Verletzungsfrequenzen. Neben der Bestimmung von Geschlecht, Sterbealter und Körperhöhe wurden an den zur Untersuchung zur Verfügung stehenden Schädeln (N=106) und Femora (N=33) aus der Schlacht von Dornach 1499 n. Chr. pathologische und postmortale Veränderungen sowie als Schwerpunkt prä- und perimortale Traumata identifiziert und beschrieben. Die anthropologischen Befunde zeichneten das Bild einer in Hinsicht auf Sterbealter und Körperhöhe heterogenen Gruppe von Männern mit wenigen pathologischen Veränderungen. Die Ergebnisse wurden vor dem Hintergrund des spätmittelalterlichen Söldnerwesens diskutiert. An den Schädeln wurden insgesamt 417 perimortale Traumata identifiziert, wobei Hiebverletzungen stark überwogen. Die Entstehungsweise charakteristischer Merkmale von Hiebverletzungen konnte experimentell nachvollzogen werden. Weiter stellte sich heraus, dass Hiebverletzungen durch Schwerter und Hellebarden nur in Ausnahmefällen voneinander unterschieden werden können. Verletzungen durch punktuelle Einwirkungen und stumpfe Gewalt sowie Schussverletzungen wurden in weitaus geringerer Häufigkeit festgestellt. Experimentell konnte gezeigt werden, dass die Verletzungen durch punktuelle Einwirkungen mit einer Beibringung durch Langspiesse, Stossspitzen und Reisshaken von Hellebarden sowie Armbrustbolzen vereinbar sind, wobei beträchtliche Limitationen einer genaueren Waffenzuordnung offenkundig wurden. Die Verletzungen konnten als wohl typisch für die damalige Zeit bezeichnet werden, da sie das zeitgenössische Waffenspektrum deutlich widerspiegeln. Die Lokalisation der perimortalen Traumata am Schädel liess kein Muster erkennen, mit Ausnahme der Feststellung, dass grössere Schädelknochen mehr Verletzungen aufwiesen als kleinere. Diese regellose Verteilung wurde als Hinweis darauf verstanden, dass die Kampfweise keine „ritterliche“ gewesen sein dürfte, was in Einklang mit den damals geltenden Kriegsordnungen steht. Postmortale Veränderungen unterschiedlicher Art liessen vermuten, dass die untersuchten Individuen nicht bestattet wurden und dass die vom Schlachtfeld aufgesammelten Gebeine in Beinhäusern aufbewahrt wurden. Die Resultate bestätigten damit Angaben aus Schriftquellen und erlaubten die Zuordnung der Skelettreste zu Gefallenen des Reichsheeres. Beim Vergleich der Dornacher Stichprobe mit anderen mittelalterlichen Schlachtfeldserien traten sowohl hinsichtlich der anthropologischen Befunde als auch im Hinblick auf die Verletzungen und Verletzungsmuster deutliche Ähnlichkeiten zutage. Diese ergänzten nicht nur das lückenhafte Bild spätmittelalterlicher Heere und ihrer Kampfweise, sondern beleuchteten auch Unterschiede zwischen mittelalterlicher und neuzeitlicher Kriegsführung.

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BACKGROUND: Functional magnetic resonance imaging (fMRI) of fluorine-19 allows for the mapping of oxygen partial pressure within perfluorocarbons in the alveolar space (Pao(2)). Theoretically, fMRI-detected Pao(2) can be combined with the Fick principle approach, i.e., a mass balance of oxygen uptake by ventilation and delivery by perfusion, to quantify the ventilation-perfusion ratio (Va/Q) of a lung region: The mixed venous blood and the inspiratory oxygen fraction, which are equal for all lung regions, are measured. In addition, the local expiratory oxygen fraction and the end capillary oxygen content, both of which may differ between the lung regions, are calculated using the fMRI-detected Pao(2). We investigated this approach by numerical simulations and applied it to quantify local Va/Q in the perfluorocarbons during partial liquid ventilation. METHODS: Numerical simulations were performed to analyze the sensitivity of the Va/Q calculation and to compare this approach with another one proposed by Rizi et al. in 2004 (Magn Reson Med 2004;52:65-72). Experimentally, the method was used during partial liquid ventilation in 7 anesthetized pigs. The Pao(2) distribution in intraalveolar perflubron was measured by fluorine-19 MRI. Respiratory gas fractions together with arterial and mixed venous blood samples were taken to quantify oxygen partial pressure and content. Using the Fick principle, the local Va/Q was estimated. The impact of gravity (nondependent versus dependent) of perflubron dose (10 vs 20 mL/kg body weight) and of inspired oxygen fraction (Fio(2)) (0.4-1.0) on Va/Q was examined. RESULTS: In numerical simulations, the Fick principle proved to be appropriate over the Va/Q range from 0.02 to 2.5. Va/Q values were in acceptable agreement with the method published by Rizi et al. In the experimental setting, low mean Va/Q values were found in perflubron (confidence interval [CI] 0.08-0.29 with 20 mL/kg perflubron). At this dose, Va/Q in the nondependent lung was higher (CI 0.18-0.39) than in the dependent lung regions (CI 0.06-0.16; P = 0.006; Student t test). Differences depending on Fio(2) or perflubron dose were, however, small. CONCLUSION: The results show that derivation of Va/Q from local Po(2) measurements using fMRI in perflubron is feasible. The low detected Va/Q suggests that oxygen transport into the perflubron-filled alveolar space is significantly restrained.

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Research councils, universities and funding agencies are increasingly asking for tools to measure the quality of research in the humanities. One of their preferred methods is a ranking of journals according to their supposed level of internationality. Our quantitative survey of seventeen major journals of medical history reveals the futility of such an approach. Most journals have a strong national character with a dominance of native language, authors and topics. The most common case is a paper written by a local author in his own language on a national subject regarding the nineteenth or twentieth century. American and British journals are taken notice of internationally but they only rarely mention articles from other history of medicine journals. Continental European journals show a more international review of literature, but are in their turn not noticed globally. Increasing specialisation and fragmentation has changed the role of general medical history journals. They run the risk of losing their function as international platforms of discourse on general and theoretical issues and major trends in historiography, to international collections of papers. Journal editors should therefore force their authors to write a more international report, and authors should be encouraged to submit papers of international interest and from a more general, transnational and methodological point of view.

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BACKGROUND: Bluetongue virus serotype 8 (BTV-8) has caused disease in domestic ruminants in several countries of northern Europe since 2006. In 2008 a mass-vaccination program was launched in most affected countries using whole virus inactivated vaccines. OBJECTIVE: To evaluate 2 inactivated vaccines (Bovilis BTV 8; BTVPUR AlSap8) for immunogenicity and safety against BTV-8 in South American camelids (SAC) in a field trial. ANIMALS: Forty-two SAC (25 Alpacas, 17 Llamas) aged between 1 and 16 years. METHODS: The animals were vaccinated twice at intervals of 21 days. They were observed clinically for adverse local, systemic, or both reactions throughout the trial. Blood samples collected on days 0, 14, 21, 43, and 156 after vaccination were tested for the presence of BTV-8 virus by real time-polymerase chain reaction and of specific antibodies by competitive ELISA and a serum neutralization test. RESULTS: All vaccinated animals developed antibodies to BTV-8 after the 2nd administration of the vaccine. No adverse effects were observed except for moderate local swellings at the injection site, which disappeared within 21 days. Slightly increased body temperatures were only observed in the first 2 days after vaccination. The BTV was not detected in any of the samples analyzed. CONCLUSIONS AND CLINICAL IMPORTANCE: The administration of the 2 inactivated commercial vaccines was safe and induced seroconversion against BTV-8 in all vaccinated animals. The results of this study suggest that 2 doses injected 3 weeks apart is a suitable vaccination regimen for SAC.

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Genome-wide association studies (GWAS) are used to discover genes underlying complex, heritable disorders for which less powerful study designs have failed in the past. The number of GWAS has skyrocketed recently with findings reported in top journals and the mainstream media. Mircorarrays are the genotype calling technology of choice in GWAS as they permit exploration of more than a million single nucleotide polymorphisms (SNPs)simultaneously. The starting point for the statistical analyses used by GWAS, to determine association between loci and disease, are genotype calls (AA, AB, or BB). However, the raw data, microarray probe intensities, are heavily processed before arriving at these calls. Various sophisticated statistical procedures have been proposed for transforming raw data into genotype calls. We find that variability in microarray output quality across different SNPs, different arrays, and different sample batches has substantial inuence on the accuracy of genotype calls made by existing algorithms. Failure to account for these sources of variability, GWAS run the risk of adversely affecting the quality of reported findings. In this paper we present solutions based on a multi-level mixed model. Software implementation of the method described in this paper is available as free and open source code in the crlmm R/BioConductor.

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Carbon nanotubes (CNTs) are interesting materials with extraordinary properties for various applications. Here, vertically-aligned multiwalled CNTs (VA-MWCNTs) are grown by our dual radio frequency plasma enhanced chemical vapor deposition (PECVD). After optimizing the synthesis processes, these VA-MWCNTs were fabricated in to a series of devices for applications in vacuum electronics, glucose biosensors, glucose biofuel cells, and supercapacitors In particular, we have created the so-called PMMA-CNT matrices (opened-tip CNTs embedded in poly-methyl methacrylate) that are promising components in a novel energy sensing, generation and storage (SGS) system that integrate glucose biosensors, biofuel cells, and supercapacitors. The content of this thesis work is described as follows: 1. We have first optimized the synthesis of VA-MWCNTs by our PECVD technique. The effects of CH4 flow rate and growth duration on the lengths of these CNTs were studied. 2. We have characterized these VA-MWCNTs for electron field emission. We noticed that as grown CNTs suffers from high emission threshold, poor emission density and poor long-term stability. We attempted a series of experiments to understand ways to overcome these problems. First, we decrease the screening effects on VA-MWCNTs by creating arrays of self-assembled CNT bundles that are catalyst-free and opened tips. These bundles are found to enhance the field emission stability and emission density. Subsequently, we have created PMMA-CNT matrices that are excellent electron field emitters with an emission threshold field of more than two-fold lower than that of the as-grown sample. Furthermore, no significant emission degradation was observed after a continuous emission test of 40 hours (versus much shorter tests in reported literatures). Based on the new understanding we learnt from the PMMA-CNT matrices, we further created PMMA-STO-CNT matrices by embedding opened-tip VA-MWCNTs that are coated with strontium titanate (SrTiO3) with PMMA. We found that the PMMA-STO-CNT matrices have all the desired properties of the PMMA-CNT matrices. Furthermore, PMMA-STO-CNT matrices offer much lower emission threshold field, about five-fold lower than that of as grown VA-MWCNTs. The new understandings we obtained are important for practical application of VA-MWCNTs in field emission devices. 3. Subsequently, we have functionalized PMMA-CNT matrices for glucose biosensing. Our biosensor was developed by immobilized glucose oxidase (GOχ) on the opened-tip CNTs exposed on the matrices. The durability, stability and sensitivity of the biosensor were studied. In order to understand the performance of miniaturized glucose biosensors, we have then investigated the effect of working electrode area on the sensitivity and current level of our biosensors. 4. Next, functionalized PMMA-CNT matrices were utilized for energy generation and storage. We found that PMMA-CNT matrices are promising component in glucose/O2 biofuel cells (BFCs) for energy generation. The construction of these BFCs and the effect of the electrode area on the power density of these BFCs were investigated. Then, we have attempted to use PMMA-CNT matrices as supercapacitors for energy storage devices. The performance of these supercapacitors and ways to enhance their performance are discussed. 5. Finally, we further evaluated the concept of energy SGS system that integrated glucose biosensors, biofuel cells, and supercapacitors. This SGS system may be implantable to monitor and control the blood glucose level in our body.

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Preliminary archaeological and palynological results are presented from an early Byzantine cistern of the village Horvat Kur in eastern Lower Galilee/Israel. The rural site was settled from the Hellenistic until the Early Arab period, its synagogue was constructed shortly after 425 AD and renovated sometimes during the 2nd half of the 6th century AD. It was abandoned probably as a consequence of the earthquake of 749 AD. The intact and properly sealed cistern contained complete or fully restorable pottery. Two cooking pots from the early 5th century AD comprised sediments which was sampled for palynological purposes. Both samples, as well as a sample from the soil beneath one of the pots and a modern surface sample from the site, revealed well preserved palynomorphs in comparably high concentration showing a great potential of the cistern as a pollen archive. The pollen content points to an open, grassy semiarid landscape with an apparent scarcity of cultivars and trees in the vicinity of the site and an abundance of herbs, especially Asteraceae, which are still commonly found in modern regional vegetation.