966 research outputs found
Exposure-Tolerant Imaging Solution forCultural Heritage Monitoring
No full textThis paper describes a simple and cheap solution specifically designed for monitoring the degradation of thin coatings employed for metal protection. The proposed solution employs a commercial photocamera and a frequency-domain-based approach that is capable of highlighting the surface uniformity changes due to initial corrosion. Even though the proposed solution is specifically designed to monitor the long-time performance of protective coatings employed for the restoration of silver artifacts, it can be successfully used also for assessing the conservation state of other ancient metallic works of art. The proposed solution is made tolerant to exposure changes by using a procedure for sensor nonlinearity identification and correction, does not require a precise lighting control, and employs only free open-source software, so that its overall cost is very low and can be used also by not specifically trained operator
The C-Section Epidemic: What's Tort Reform Got to Do With It?
No full textToday one in three babies in the United States comes into the world by cesarean section. The cesarean section has become the most commonly performed operating room procedure in the United States. Conventional wisdom holds that malpractice liability bears primary responsibility for the cesarean section epidemic and that tort reform, which caps physician liability, holds the key to its reduction. This article presents new aggregate empirical data that debunks this view. For the first time, it provides a national cesarean rate for births subject to damage caps and a national cesarean rate for births without damage caps. This data shows that a woman is not less likely to give birth by cesarean section in a state with damage caps than in one without. Thus, either damage caps are insufficient to address physicians’ concerns or other explanations better account for the overuse of the procedure. The empirical analysis will assist policy makers and advocates seeking to reduce the cesarean rate as well as contribute to consideration of the efficacy of medical malpractice reform as a means to reduce the broader problem of medical overtreatment.
The article then outlines three policy initiatives to reduce the cesarean section rate. First, it suggests upending the current payment practice for deliveries. Contrary to the present norm, it proposes that obstetricians receive more rather than less to deliver vaginally to compensate them for the extra time that vaginal delivery takes compared to cesarean delivery. Second, rather than looking to tort reform to reduce cesarean section rates, the article explores whether malpractice insurance providers themselves are contributing to the cesarean section epidemic and advocates two novel medical malpractice insurance reforms to address this problem. Third, it advocates public disclosure of hospital and physician cesarean section rates so that women can make informed decisions when selecting their health care providers and when determining whether to have a cesarean section
Spatial distribution of metals in the ICM. Evolution of the iron excess in relaxed galaxy clusters
No full textWe investigate the spatial distribution of iron in the intracluster medium (ICM) in a selected sample of 41 relaxed clusters in the redshift range 0.05 < z < 1.03 using Chandra archival data. We compute the azimuthally averaged, deprojected ZFe profile of each cluster out to ~0.4r500, and identify a peak in the distribution of iron followed by a flatter distribution at larger radii. Due to the steep gradient both in gas density and abundance, we find that the emission-weighted iron abundance within 0.2r500, which entirely includes the iron peak in most of the cases, is on average ~25 per cent higher than the mass-weighted value, showing that spatially resolved analysis and accurate deprojection are key to study the evolution of iron enrichment in the very central regions of cool-core clusters.We quantify the extent of the iron distribution in each cluster with a normalized scale parameter rFe, defined as the radius where the iron abundance excess is half of its peak value. We find that rFe increases by a factor of ~3 from z ~ 1 to z ~ 0.1, suggesting that the spatial distribution of iron in the ICM extends with time, possibly due to the mixing with the mechanical-mode feedback from the central galaxy. We also find that the iron mass excess within 0.3r500, when normalized to the total baryonic mass within the same region, does not evolve significantly, showing that this iron mass component is already established at z ~ 1
Environmental factors affecting productivity, indican content and indigo yield in Polygonum tinctorium Ait., a subtropical crop grown under temperate conditions
No full textPolygonum tinctorium Ait. is a herbaceous subtropical annual plant, belonging to the family Polygonaceae. Within the cells of its leaves P. tinctorium accumulates large amounts of a colorless glycoside, indican (indoxyl β-D-glucoside), from which the blue dye indigo is synthesized. P. tinctorium is well-known in Japan, where it had been cultivated to produce natural indigo for textile dyeing, whereas it represents a potentially interesting new crop in Europe. To better understand the effects of environmental parameters on P. tinctorium crop production and indigo yield, field experiments were carried out in central Italy under temperate climate. Three lines were tested during the 2001 and 2002 growing seasons, and plant/leaf yields as well as indican contents were evaluated. The results showed that P. tinctorium grown in temperate climate conditions can be harvested three times a year. Yields of 82 and 120 t ha-1 of fresh plant yield were obtained in 2001 and 2002, respectively. The contrasting weather conditions between the two years significantly affected biomass production, which was higher in the 2002 season, characterized by wet weather conditions. The cycle length from sowing to the last harvest was accomplished in 229-238 days when plants had accumulated 2017-2018 °C. Green leaves accounted for 40-45% by weight of fresh plant tissue and contained 11-20 g kg-1 indican. The three lines did not significantly differ in the main productive parameters or in fresh leaf indican content (14.1 g kg-1 mean value). Photosynthetic active radiation influences indican leaf production according to the model y= 0.0004x + 8.566 (P < 0.01, correlation coefficient =0.818). Indican content ranged from 12 to 25 g kg-1 of fresh leaves with PAR daily values from 10000 to 40000 mEinstein m-2 (recorded in May and at the end of July-beginning of August, respectively). The results indicate that in nonlimiting rainfall conditions a very high indican content and a potentially high indigo yield can be obtained by cultivating P. tinctorium in this pioneer geographical area
Bridging the Distance: Exploring Informal Communication and its Impact on Productivity, Well-Being, and Workplace Dynamics in Hybrid Work Environments
No full textAuthor Sabrina Schopf, BScMasterarbeit Johannes Kepler Universität Linz 202
Bridging the Distance: Exploring Informal Communication and its Impact on Productivity, Well-Being, and Workplace Dynamics in Hybrid Work Environments
No full textAuthor Sabrina Schopf, BScMasterarbeit Johannes Kepler Universität Linz 202
The management of multiple aspiration : a case study of a merger in an Austrian hospital
No full textAuthor Sabrina Hermanseder, BAAbstract in englischer SpracheMasterarbeit Universität Linz 201
Differences in leaf yield and indigo precursors production in woad (Isatis tinctoria L.) and Chinese woad (Isatis indigotica Fort.) genotypes
No full textIsatis tinctoria L. (woad) is one of the earliest known sources of indigo in Europe where it was cultivated since the Middle Ages. Isatis indigotica Fort. (Chinese woad), widely distributed in China, had been used from ancient times as indigo-producing plant and medicinal plant. Both species produce indigo precursors indican (indoxyl β-D glucoside) and isatan B (indoxyl ketogluconate) in their leaves. In order to identify new suitable crops for indigo production in Italy, 17 woad lines were studied under field conditions in Central Italy (Pisa, 43°40’N, 10°19’E) from 2001 to 2003.We analyzed the effects of year, genotype, and harvest times together with their reciprocal interactions on leaf yield and indigo precursors production. Woad lines were then compared with seven I. indigotica lines in a field crop experiment set up in 2003. Extraction and quantification of indigo precursors were accomplished by HPLC-ELSD. Isatan B and indican content, as well as equivalent indigo and fresh/dry leaf yield, were compared between species and among genotypes. In I. tinctoria wide variations in phytochemical and agronomic traits were observed among genotypes, with significant differences in isatan B (1–2 g kg-1 FW), indican (0.3–0.7 g kg-1 FW) and leaf yield per harvest (11–22 t FW ha-1). In I. indigotica significant differences were observed in indican (0.3–0.6 g kg-1 FW) and fresh leaf yield per harvest (10–20 t FW ha-1). Chinese woad showed higher isatan B than woad (4.9 and 1.5 g kg-1 FW, respectively). In both species isatan B represented the major precursor, particularly in I. indigotica. The ratio indican:isatan B recorded was 1:5 in woad against 1:14 in Chinese woad, leading to significantly higher +55% equivalent indigo in the latter. Interestingly, I. tinctoria showed good adaptation to Mediterranean climate conditions with high re-growth capacity after harvest and elevated biomass production. Conversely, I. indigotica, although its higher indigo precursors content/leaf weigh, appeared to be more affected by climate conditions and produced 25% leaf yield per hectare per season. The present work identified high indigo yielding genotypes that may be used for genetic improvement in order to re-introduce Isatis species in the agricultural systems of Mediterranean regio
Feminisme Dalam Novel Asya Story Karya Sabrina Febrianti
No full textThe novel Asya Story by Sabrina Febrianti contains the life story of a woman named Asya. In this novel also discusses how Asya's obstinacy and strength in overcoming every problem in his face. The problems described in this study are (1) Are feminism questions about aspects of the wisdom of the female characters in the novel "Asya Story" by Sabrina Febrianti?, (2), (3) Women's questions in the "Asya Story" novel by Sabrina Febrianti? The purpose of this study is to analyze data about the aspects of feminism psychology that discusses the character of female characters, the pressure of feelings of female characters, and the taste of female characters. The theory used by the author to analyze this research is the theory of Sikana (2005), Lubis (2016). The agreement used is a qualitative agreement. The type of research used is library research. The method used is descriptive method. The technique used is the hermeneutic technique. Data analysis using content analysis techniques. The results of the research submitted about the facts of feminism, especially about the policy aspects that often appear in the novel Asya Story by Sabrina Febrianti is a challenge of the character (character) women and recovery figures, women women Figure in the same story with humans in everyday life who always have different thoughts. Human life is often tested with tests and trials, as is the character who discusses the author in a novel. Exams and experiments that will shape the pressure and stress in humans
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