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Letteratura scientifica selezionata sul tema "Lcsh"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 gennaio 2023

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Articoli di riviste sul tema "Lcsh"

Neta, Alice R. de Carvalho, Irene P. Pinto, Alex S. Da Cruz, Aparecido D. Da Cruz e Lysa B. Minasi. "Longos trechos contíguos em homozigose identificados por análise cromossômica por microarranjos em uma população com deficiência intelectual e transtorno do espectro autista do Brasil Central". Conjecturas 2022, n. 18 (9 dicembre 2022): 355–67. http://dx.doi.org/10.53660/conj-2120-2x70.

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Longos trechos contínuos em homozigose (LCSH) são regiões ininterruptas de alelos homozigotos originados por consanguinidade, dissomia uniparental (UPD), mecanismos de reparo de DNA e haplótipos ancestrais. Identificamos regiões genômicas de LCSHs através do CMA, avaliando suas frequências e mecanismo de origem em pacientes com deficiência intelectual e/ou transtorno do espectro autista do serviço público de saúde do Brasil Central. Em 90% dos pacientes, pelo menos um LCSH foi identificado com um total de 265 LCSHs observados. De 265 LCSHs, 59% eram recorrentes, observados nos cromossomos 11, 16 e X, e 41% eram não recorrentes e observados nos cromossomos X e autossomos, exceto no cromossomo 19. LCSHs não recorrentes foram originados por consanguinidade em 9,7% dos pacientes, por possível reparo de DNA ou mecanismos de haplótipos ancestrais em 85,4% dos pacientes e por possível UPD segmentar em 4,9% dos pacientes. Nossos achados mostraram a utilidade do CMA de alta densidade de SNPs na identificação de LCSHs, destacando a importância de caracterizar o perfil de LCSHs na população brasileira, especialmente na população do Brasil Central.

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Chaves, Tiago Fernando, Luan Freitas de Oliveira, Maristela O'Campos, Ingrid Tremel Barbato, Gisele Rozoni de Luca, Jorge Humberto Barbato Filho, Louise L. Pinto, Pricila Bernardi e Angélica Francesca Maris. "Longos trechos de contíguos de homozigose frequentes em exames de CGH array, no estado de SC". Semina: Ciências Biológicas e da Saúde 38, n. 1supl (16 febbraio 2018): 197. http://dx.doi.org/10.5433/1679-0367.2017v38n1suplp197.

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Longos trechos contínuos de homozigose (LCSH) são segmentos cromossômicos neutros, resultantes de homozigose cromossômica ou segmentar (HMZ). Os LCSH podem ser detectadas por plataformas de hibridização genômica comparativa por arrays (CGH array) através de sondas específicas para polimorfismo de um único nucleotídeo (SNP). Dificilmente serão realizados exames de CGH array de base populacional no Brasil, para inferir polimorfismos comuns. Portanto, neste trabalho pesquisamos as LCSH em exames de CGH array de pacientes com distúrbios do desenvolvimento (DD) para identificar algumas das variações comuns. Metodologia: Foram analisadas as citobandas que mais frequentemente apresentaram regiões com LCSH em 374 exames de CGH array (Affymetrix CytoScan® HD ou 750k) de pacientes com DD, cujos responsáveis assinaram o termo de consentimento. Os exames foram solicitados por médicos geneticistas e neurologistas dos Hospitais Infantil e Universitário e de clínicas particulares de Florianópolis, e realizados pelo laboratório Neurogene no período de 2013 a 2016. Foram considerados LCSH apenas quando eram superiores a 3Mbp e nos cromossomos autossômicos e frequentes apenas as que apareceram em mais de 5% dos exames, já que estamos lidando com uma população onde o índice de 1% não seria aplicável. Resultados: Dos 374 exames analisados, 4% não apresentaram nenhum LCSH >3Mbp nos cromossomos autossômicos. A região mais envolvida com a homozigose foi a 16p11.2 (59%)[ (~31,451,698-35,220,544) tamanho médio de 3,5Mbp], essa região é conhecida por estar envolvida em rearranjos cromossômicos devido à presença de flanqueamento de duplicações segmentares. Também foi encontrada homozigose frequente em 11p11.2 (18%), 3p21.31(14%), 15q15.1(10%), 1q21.1(10%), 1q21.2(7%), 2q11.1(6%), 10q22.1(6%) e 1p33(5%). Não há genes envolvidos com imprinting nessas regiões [http://www.geneimprint.com], sugerindo que as mesmas podem ser consideradas variações comuns. Outras 300 regiões genômicas com LCSH apresentaram menores frequências e características que podem ser exploradas para interpretações etiológicas, podendo evidenciar genes candidatos a mutações autossômicas recessivas; um grau de consanguinidade; dissomia uniparental; recombinações cromossômicas ou rearranjos. Conclusão: Relatamos uma série de LCSHs que estão presentes em frequência acima de 5% em indivíduos com o neurodesenvolvimento afetado, sugerindo que provavelmente sejam variações normais na população de SC. Esta informação é importante para a interpretação de achados nos exames de CGH array.

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Connell, Tschera Harkness. "Use of the LCSH System". Cataloging & Classification Quarterly 23, n. 1 (27 ottobre 1996): 73–98. http://dx.doi.org/10.1300/j104v23n01_06.

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Svenonius, Elaine. "LCSH: Semantics, Syntax and Specificity". Cataloging & Classification Quarterly 29, n. 1-2 (giugno 2000): 17–30. http://dx.doi.org/10.1300/j104v29n01_02.

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Vizine-Goetz, Diane. "Popular LCSH with Dewey Numbers". Journal of Library Administration 34, n. 3-4 (dicembre 2001): 293–300. http://dx.doi.org/10.1300/j111v34n03_08.

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Holloway, Steven W. "LCSH in the Southern Levant*". Cataloging & Classification Quarterly 56, n. 7 (3 ottobre 2018): 571–91. http://dx.doi.org/10.1080/01639374.2018.1508107.

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McTavish, Jill. "A domain-analytic perspective on sexual health in LCSH and RVM". NASKO 3, n. 1 (2 novembre 2011): 83. http://dx.doi.org/10.7152/nasko.v3i1.12793.

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This paper analyses and compares the treatment of sexual health in Library of Congress Subject Headings (LCSH) and Répertoire de vedettes-matière de l’Université Laval (RVM) using three of Bowker and Star’s (1999) infrastructural inversion techniques: practical politics, convergence, and resistance. Our findings reveal that neither LCSH nor RVM offer a holistic representation of sexual health (practical politics), that LCSH’s topical representation of sexual health limits access to relevant material (convergence), and that the enhancement of LCSH through user-added content could improve but not replace these systems (resistance).

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Papadakis, Ioannis, e Konstantinos Kyprianos. "Merging Controlled Vocabularies for More Efficient Subject-Based IR Systems". International Journal of Knowledge Management 7, n. 3 (luglio 2011): 74–90. http://dx.doi.org/10.4018/jkm.2011070106.

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One of the most important tasks of a librarian is the assignment of appropriate subject(s) to a resource within a library’s collection. The subjects usually belong to a controlled vocabulary that is specifically designed for such a task. The most widely adopted controlled vocabulary across libraries around the world is the Library of Congress Subject Headings (LCSH). However, there seems to be a shifting from traditional LCSH to modern thesauri. In this paper, a methodology is proposed, capable of incorporating thesauri into existing LCSH-based Information Retrieval–IR systems. In order to achieve this, a mapping methodology is proposed capable of providing a common structure consisting of terms belonging to LCSH and/or a thesaurus. The structure is modeled as a Simple Knowledge Organization System (SKOS) ontology, which can be employed by appropriate subject-based IR systems. As a proof of concept, the proposed methodology is applied to the DSpace-based University of Piraeus digital library.

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Frost, Carolyn O. "Title Words as Entry Vocabulary to LCSH". Cataloging & Classification Quarterly 10, n. 1-2 (13 dicembre 1989): 165–79. http://dx.doi.org/10.1300/j104v10n01_11.

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Smiraglia, Richard P. "Subject Access to Archival Materials Using LCSH". Cataloging & Classification Quarterly 11, n. 3-4 (27 novembre 1990): 63–90. http://dx.doi.org/10.1300/j104v11n03_04.

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Più fonti

Tesi sul tema "Lcsh"

Smit, Christelle. "Exploring the use and relevance of narrative approaches to psycho-social interventions in the south African context : a mixed methods content analysis". Thesis, University of Fort Hare, 2016. http://hdl.handle.net/10353/6432.

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This study aims to explore the use and relevance of Narrative approaches to psycho-social interventions in the South African context. The profession of psychology in South Africa has been in a state of discontentment since the country’s turn to democracy in 1994 which has been voiced from both those within the profession and those it aims to assist. The loudest call is for a psychology that is relevant to the South African context – culturally, socially, and politically. Narrative approaches to psychotherapy and psycho-social intervention are grounded in post-modern and social-constructionist thought and offer an alternative to mainstream psychological theory. Narrative practice aims to promote social justice and views therapy as a political act. It is also an approach that values local knowledges and sees all therapeutic engagements as cross-cultural encounters which are approached with curiosity and a not-knowing stance, rather than an interpretive, analytical lens. This study has investigated what the existing literature has produced regarding the use and relevance of Narrative approaches in South Africa context. The research process was implemented using a mixed methods research methodology whereby a sample of 58 journal articles (n=58) were analysed using both quantitative and qualitative content analysis. The common themes that emerged from the articles were ‘viewing people in context’, ‘listening to the telling of stories’, ‘theoretical constructs of a narrative approach’, and ‘social phenomena’.

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Mncunzwa, Gcobisa. "Exploring employees' need for the development of an employee assistance programme at a welfare organisation". Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/5554.

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The study was conducted in order to determine the employee needs for an employee assistance programme in a welfare organisation in East London, Eastern Cape. This study was born out of a need from the management of this welfare organisation in East London who identified a need for an employee assistance Programme (EAP) within their organisation. According to management, there was a decline in productivity, and high stress levels due to high caseloads and societal demands (Leeuw, May 15, 2015). The theoretical framework that guided this research was systems theory. The rationale for using systems theory is that this study deals with individuals within an organisation who must coexist on a daily basis. There is a general belief that people and their physical-social-cultural environment interact in processes of mutual reciprocity and complementary exchanges (Merton, 2009). A qualitative approach was used in this study. Eight (8) employees from various levels in a welfare organisation were purposively selected to participate in the study. Semi-structured interviews were conducted with the participants and the interviews took more than forty-five (45) minutes each and this enabled the acquisition of rich information which is described in the findings and is used as a basis for the recommendations in the study. After the examination of the needs of employees for an EAP from the observations of both the employer and the employee it was clear that there is a need for employee assistance programmes in welfare organisations. Employees in this organisation are experiencing stress, burnout and were highly concerned about high caseloads that makes them feel incompetent to render adequate and quality services to their employees. The study also revealed that both employees and management of this organisation have different needs, experience different types of problems and view the EAP in different contexts. Despite the differences in their outlook on the situation, the evidence indicates that both employer and employee perceive that there is a need for an EAP, especially clinical services. At the same time, the issue of funding such a programme is also a concern. Recommendations were made for the organisation to develop an EAP to address the needs identified by employees, and for a clear communication strategy be developed to make all levels of employees within the organisation aware of the existence of such a programme. Another recommendation was made for the organisation to identify specific days on which they will conduct preventative awareness and debriefing sessions for the employees. It was also recommended that the South African Council for Social Services Professionals must standardise, regulate and monitor caseloads for the social work profession.

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Ntozakhe, Luyolo. "Synthesis of modified zinc oxide nanoparticles using pneumatic spray pyrolysis for solar cell application". Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/5862.

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Abstract (sommario):

In this work, the pneumatic spray pyrolysis was used to synthesize un-doped and carbon doped zinc oxide (ZnO) nanoparticles. The zinc acetate, tetrabutylammonium bromide and ethanol were used as starting materials for the desired ZnO nanoparticles and the prepared samples were annealed at 400 oC in the furnace. The as synthesized un-doped and carbon doped ZnO NPs were evaluated using X-ray diffraction (XRD), Scanning electron microscope (SEM), Energy dispersive x-ray spectroscopy (EDX), High-resolution transmission electron microscopy (HRTEM), Raman spectroscopy (RS) and Ultraviolet-visible spectroscopy (UV-Vis). XRD analysis of the synthesized NPs revealed peaks at 31.90°, 34.50°, 36.34°, 47.73°, 56.88°, 63.04°, 68.20°, and 77.33° belonging to the hexagonal Wurtzite ZnO crystal structure. The incorporation of C species into ZnO lattice was cross examined by monitoring the peak positions of the (100), (002) and (001) planes. These three main peaks of C-ZnO NPs show a peak shift to higher 2θ values which indicates substitutional carbon doping in ZnO NPs. SEM analysis has revealed that the as synthesized NPs have spherical shape and the morphology of the NPs change as the concentration of carbon increases. The EDX spectra of both un-doped and doped ZnO nanoparticles have revealed prominent peaks at 0.51 keV, 1.01 keV, 1.49 keV, 8.87 keV and 9.86 keV. Peaks at, X-ray energies of 0.51 keV and 1.01 keV respectively represent the emissions from the K-shell of oxygen and L-shell of zinc. The L-shell emission at 1.01 keV is considered as convolution of Zn 2p3/2 and Zn 2p1/2 photoelectron energies. The occurrence of these peaks in the EDX endorses the existence of Zn and O atoms in the PSP prepared samples. HRTEM analysis has revealed NPs size modal range from 6.65-14.21 nm for the PSP synthesized samples which is in mutual agreement with the XRD data calculated values. More over the selected area diffraction images displaying the fact that only the diffraction planes of (101), (002) and (100) are responsible for the diffraction pattern belonging to Wurtzite ZnO. RS analysis has revealed that the un-doped ZnO and doped ZnO samples have characteristic Raman vibration modes at 325 cm-1, and 434 cm-1 belonging to Wurtzite ZnO structure. Moreover, the prominent peak at 434 cm-1 which is the characteristic peak of E2(2) (high) mode of the Wurtzite ZnO and the E2(2) (high) has been red shifted by 4 cm-1, as compared to that found in the bulk ZnO. Additionally, the effect of carbon doping through Raman spectroscopy peak shifts of the E2(2) (high) mode, A1(LO) mode and multi-phonon has also been considered and discussed in detail. UV-Vis diffuse reflectance spectroscopy has revealed a red shift of the absorption edge with increase in C doping. Finally, the effect of nano-crystallite size and gradual prominence of C into ZnO lattice due to increase in C doping concentration in the PSP prepared nanoparticles was meticulously elaborated through Raman Spectroscopy analysis.

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Stofile, P. Z. "Prevalence of Group B streptococcus and staphylococcus aureus colonization in the anogenital tract of pregnant women in the Eastern Cape Province, South Africa". Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/5983.

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Neonatal sickness and death is increasingly becoming a public health problem worldwide. The colonization of Group B Streptococcus and Staphylococcus in the rectovaginal area is among the sources of infections in neonates which can result in illness and mortality. The over exposure of humans to antibiotics is the possible cause of resistance in bacteria. These resistant strains can be passed onto offspring, leading to resistant infections and increasing the morbidity of neonates because of treatment failures. Many people, including healthcare personnel are not aware of the effect of these bacteria, and informing clinics and hospitals can help create awareness and monitoring the levels of resistance among bacteria can assist in preventing the transference of the bacteria. In this study we investigated the prevalence of group B Streptococcus (GBS) and Staphylococcus aureus in the anogenital tract of pregnant women in the Eastern Cape Province, South Africa. A total of 49 isolates from 25 (30.5 percent) pregnant women colonized with GBS were isolated from vaginal and rectal swabs of 82 pregnant women at 25-37 gestation who participated in this study. These isolates were obtained using standard microbiological methods and confirmed by polymerase chain reaction (PCR) technique aimed at the ScpB gene. The isolates were further screened for the presence of 9 serogroups (Ia, Ib, II, III, IV, V, VI, VII, VII) and serogroups Ib 2 (4.8 percent), II 20 (40.8 percent) and IV 5 (10.2 percent) and 22 non-typable (44.9 percent) were identified. Susceptibility profiling of the isolates to 12 antibiotics (tetracycline, clindamycin, erythromycin, gentamycin, naladixic acid, norfloxacin, chloramphenicol, cefuroxime, cefotaxime, imipenem, penicillin and vancomycin) was tested in vitro by the standardized disc diffusion method. All the confirmed GBS isolates (49) were resistant to erythromycin, tetracycline and clindamycin. A higher percentage of the isolates were resistant to gentamycin 44 (90 percent), nalidixic acid 41 (84 percent), penicillin 41 (84 percent), chloramphenicol 38 (78 percent), cefuroxime 36 (74 percent), imipenem 36 (74 percent), cefotaxime 35 (71 percent), norfloxacin 32 (65 percent) and vancomycin 31 (78 percent). Multiple antimicrobial resistance patterns ranged from 9‒11 and indices ranged from 0.7‒0.9, respectively. Among the antimicrobial resistance determinants examined, genes encoding for resistance to erythromycin ermB 25 (51 percent), tetracycline tetM 32 (65 percent) and penicillin bla-Z 4 (8 percent) only were identified. On the other hand, screening for S. aureus yielded a total of 7 isolates from 4 study participants as confirmed by PCR based on staphylococcal, nuc gene. The isolates were further screened for the presence of six virulence genes (Hla, Hlb, LUKM, LUKED, PVL, Eta and Etb) and antibiotic susceptibility pattern by the disc diffusion method using 12 (penicillin, vancomycin, tetracycline, rifampicin, imipenem, gentamycin, chloramphenicol, norfloxacin, oxacillin, erythromycin and sulfamethoxazole-trimethoprim) antibiotics that are adopted in the treatment of infections caused by the organism. PVL 6 (85.7 percent) and eta 1 (14.3 percent) were the two virulence genes detected. The following percentages of antibiotics resistance among the isolates were observed; penicillin G 7 (100 percent), clindamycin 7 (100 percent), vancomycin 5 (100 percent), rifampicin 5 (71 percent), oxacillin 5 (71 percent), erythromycin 5 (71 percent) gentamycin 3 (43 percent), norfloxacin 3 (43 percent), sulfamethoxazole-trimethoprim 3 (43 percent), chloramphenicol 2 (29 percent), imipenem 1 (14 percent). Multiple antimicrobial resistance patterns ranged from 7‒8 and indices ranged from 0.6‒0.7, respectively. Genetic profiling of the resistance genes identified erythromycin ermB 5(71.4 percent), tetracycline tetM 5(71.4 percent) and penicillin bla-Z 1(14.3 percent) only. The findings from the study have revealed GBS and S. aureus colonization of pregnant women in the Eastern Cape Province, and these have great public health implications especially for the neonates who are mostly likely to be infected during birth. The unidentifiable multidrug resistant serogroups of GBS as well as resistant S. aureus limit the choice of drugs in the management of infections caused by these pathogens more so if transmitted to infants. Therefore asymptomatic pregnant women needed to be properly educated about the bacteria as well as the precautions that need to be taken.

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Mditshwa, Sithembele. "Estimating maize grain yield from crop growth stages using remote sensing and GIS in the Free State Province, South Africa". Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/6016.

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Early yield prediction of a maize crop is important for planning and policy decisions. Many countries, including South Africa use the conventional techniques of data collection for maize crop monitoring and yield estimation which are based on ground-based visits and reports. These methods are subjective, very costly and time consuming. Empirical models have been developed using weather data. These are also associated with a number of problems due to the limited spatial distribution of weather stations. Efforts are being made to improve the accuracy and timeliness of yield prediction methods. With the launching of satellites, satellite data are being used for maize crop monitoring and yield prediction. Many studies have revealed that there is a correlation between remotely sensed data (vegetation indices) and crop yields. The satellite based approaches are less expensive, save time, data acquisition covers large areas and can be used to estimate maize grain yields before harvest. This study applied Landsat 8 satellite based vegetation indices, Normalized Difference Vegetation Index (NDVI), Soil Adjusted Vegetation Index (SAVI) and Moisture Stress Index (MSI) to predict maize crop yield. These vegetation indices were derived at different growth stages. The investigation was carried out in the Kopanong Local Municipality of the Free State Province, South Africa. Ground-based data (actual harvested maize yields) was collected from Department of Agriculture, Forestry and Fisheries (DAFF). Satellite images were acquired from Geoterra Image (Pty) Ltd and weather data was from the South African Weather Service (SAWS). Multilinear regression approaches were used to relate yields to the remotely sensed indices and meteorological data was used during the development of yield estimation models. The results showed that there are significant correlations between remotely sensed vegetation indices and maize grain yield; up to 63 percent maize yield was predicted from vegetation indices. The study also revealed that NDVI and SAVI are better yield predictors at reproductive growth stages of maize and MSI is a better index to estimate maize yield at both vegetative and reproductive growth stages. The results obtained in this study indicated that maize grain yields can be estimated using satellite indices at different maize growth stages.

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Mahachi, Leo Nyikadzino. "Physiochemical, fatty acids, lipid oxidation, sensory characteristics and consumer acceptance of warthog cabanossi produced with pork backfat and fat-tailed sheep backfat". Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/6259.

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The objective of this study was to determine the effect of different fat inclusion levels and fat types on the physical and chemical attributes, lipid oxidation, fatty acid composition and sensory characteristics of warthog cabanossi. To achieve this, three types of cabanossi with different pork backfat levels (10 percent, 20 percent and 30 percent) were produced for the first experiment. The results from the study showed that different inclusion levels of pork backfat had an influence (P ≤ 0.05) on the physicochemical and fatty acid composition of warthog cabanossi but did not influence lipid oxidation (P > 0.05). The highest (P ≤0.05) pH, weight and moisture decline was observed in the 10 percent pork backfat cabanossi compared to the 20 percent and 30 percent treatments. However, no differences (P > 0.05) in the water activity of the product were observed. As expected total fat was lower in the 10 percent fat treatment and increased concomitantly. Similarly, protein, ash and salt were higher in the 10 percent fat cabanossi and decreased concomitantly. Differences in the fatty acid composition were observed between treatments. Furthermore, backfat level affected the sensory attributes and consumer acceptance of the cabanossi. Ten percent backfat cabanossi was scored higher (P ≤0.05) for most sensory attributes. Consequently, it was observed that the consumer panel preferred and scored the 10 percent fat cabanossi higher with regards to appearance and taste. In the second experiment, two cabanossi treatments of different fat types (pork backfat and fat-tailed sheep backfat) were produced. The weight loss, moisture content, pH, water activity and salt content did not differ (P > 0.05) between the two cabanossi products. However, there were differences (P ≤0.05) in the protein, fat and ash contents; where protein and ash were higher in the pork backfat cabanossi whilst fat was higher in the sheep backfat cabanossi. Thiobarbituric reactive substances (TBARS) were similar (P > 0.05) between the two fat types cabanossi which could be explained by similar fatty acid profiles being reported for the two cabanossi although the n-6:n-3 ratio was higher (P ≤0.05) in sheep backfat cabanossi. Results from the descriptive sensory analysis showed two distinct products (P ≤0.01) where pork backfat cabanossi scored higher for most attributes. However, the lower scores for sheep backfat cabanossi were within an acceptable range. Sheep backfat cabanossi were also scored for unique attributes that were not detected in the pork backfat cabanossi. This study concluded that fat-tailed sheep backfat can be used to produce an unique cabanossi product of acceptable quality.

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Walton, Karen Lynn. "The relationship between religion/spirituality and the general psychological well-being of the institutionalized elderly population in the Eastern Cape, South Africa". Thesis, University of Fort Hare, 2015. http://hdl.handle.net/10353/5708.

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Psychological well-being has a number of known benefits and is important for the quality of life of the elderly in particular. South Africa can be considered a religious country with the majority of citizens identifying with some religious orientation. The elderly are considered to be a more religious segment of the population, leading to a quantitative exploratory study being undertaken in order to ascertain whether a correlation exists between psychological well-being and religiosity/spirituality in the elderly institutionalised population of South Africa. The General Psychological Well-Being Scale and ASPIRES was administered to a convenience sample of 336 participants in the Eastern Cape Province. A significant but weak positive correlation was found between the variables of psychological well-being and religiosity. A difference was also found between White and African participants’ level of psychological well-being. An ANOVA was performed on the demographic information collected from participants. It was found that higher levels of education and access to private medical care were associated with higher levels of psychological well-being. A regression analysis was also performed on the data. It was found that although religiosity/spirituality does account for some of the variance, there were still a large number of other factors that influence psychological well-being in the elderly that were not captured in this study. Limitations of the study are that the results can’t be generalised to elderly residing at home. All of the participants also lived in urban areas and so differences may be found with rural elderly. Some further directions for research are discussed.

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Magomani, Matimba Israel. "The effect of fire management on chemical and physical properties of rangelands". Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/6191.

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The use of fire in rangeland has become standard practice for decades; however, there is no shared understanding of how fire affects soil properties. The exact relationship between fire and soil properties is still yet to be understood. The differences in fire frequency, fire intensity, fire severity, the period between fire and sampling resulted in contradictory results amongst studies. A long-term trial at the University of Fort Hare provides a valuable experimental layout for fire research. The trial was established in 1980 with the aim of investigating the effect of burning frequency on vegetation species composition and biomass production. The objective of this study was however to determine the effect of fire management on soil chemical and physical properties under the long-term burning experiment. The treatments of the study site were: no burn (K), annual (B1), biennial (B2), triennial (B3), quadrennial (B4) and sexennial (B6) burns. A line intercept sampling technique was used to collect the soil samples from the surface (0 to 75 mm) for both chemical and physical analysis. All Burning treatments significantly (p < 0.05) increased the bulk density (Db), soil pH, total cations, Magnesium (Mg) and Calcium (Ca), but reduced the soil porosity and exchangeable acidity when compared to the control. Hydraulic conductivity (Ks), water conducting macroporosity (WCM) and total nitrogen were reduced under more frequent burning treatments (B1, B2), as compared to less frequent burning treatments (B3, B4, B6). The aggregate stability showed an opposite trend. Total organic carbon (TOC) was reduced only under annual burning treatment. Burning frequencies did not impact the extractable Phosphorus (p), Potassium (K), Sodium, soil water repellency and water content significantly (P > 0.05). The risk associated with annual burning showed in this study might facilitate processes such as overflow that lead to soil degradation. Triennial burning in rangeland ecosystem supports soil conservation practices. Further studies that measure the quality of rangeland in triennial burning is necessary.

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Noruka, Asanda. "An appraisal of the role of the National Rural Youth Service Corps in youth development in peri-urban Buffalo City Metropolitan Municipality, South Africa". Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/5795.

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Youth unemployment is a global problem, but more-so in Southern globally positioned countries such as South Africa. The government of South Africa has implemented different interventions that attempt to alleviate national youth unemployment. Some of these programmes, such as the National Rural Youth Service Corps (NARYSEC), specifically target youth in rural and peri-urban areas. NARYSEC aims to develop skills of the youth in rural and peri-urban areas as well as assist in rural development. Despite the introduction of NARYSEC, unemployment among the youth continues to be a problem. Against this background, this study sought to examine rural youth and development interventions implemented by NARYSEC in peri-urban Buffalo City Metropolitan Municipality. Furthermore, the study assessed the extent to which NARYSEC interventions are contributing to rural youth and development in peri-urban Buffalo City Metropolitan Municipality. Lastly, the study examined the limitations of NARYSEC interventions in peri-urban youth development. To achieve the above objectives, the study used a qualitative research approach. The sampling procedure was purposive as the research required specific participants who have gone through NARYSEC training. A total of 24 respondents were eventually selected. In-depth, semi-structured interviews and key informant interviews were the primary data collection tools. Some of the main findings are that NARYSEC provides various skills training programmes which prepare young people for the labour market. NARYSEC interventions are also helping communities to reduce crime through providing youth employment opportunities. Furthermore, some youth actively participate in rural development projects such as rehabilitation of local clinics and construction projects. However, the study also found that there are a number of limitations and challenges that are experienced in the implementation of the NARYSEC programme. These challenges include lack of strategic planning in the programme, irregular stipend payments, strained professional relationships between NARYSEC programme facilitators and youth participants, limited passion and commitment to the programme by both youth participants and facilitators.

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Mkono, Yonela Pelokazi. "Evaluation of some pseudomonas species isolated from Hogsback forest reserve for the production of antibacterial compounds". Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/5961.

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Pseudomonas species are Gram-negative bacteria most abundant in soil and water bodies, with the capacity to thrive in varied environments. They are largely associated with resistant pathogenic bacteria linked to human and plant diseases. Species such as Pseudomonas aeruginosa have been particularly targeted as case studies due to the extremity to which they pose a threat to human health. With more focus directed at using these species for biocontrol and bioremediation purposes, their role in bioactive compound production may be equally important. As the crisis on antimicrobial resistance still persists, the need for effective antimicrobial compounds is ever more urgent and solutions may possibly still be dormant in bacterial species whose potential has not been fully investigated. On a bid to source out potential antimicrobial compound producers, soil samples were collected from Hogback forest reserve in the province of the Eastern Cape, South Africa. For bacterial screening, M1 and R2A agar were used and the cultures grown at 37˚C for a period of seven days. After the presumed Pseudomonas species were identified, antimicrobial production was determined by submerged fermentation method using nutrient broth as media of choice. Active isolates were further studied to determine the optimum conditions which best facilitate for antimicrobial compound production, with parameters such as temperature (25˚C – 40˚C) and pH (4 – 9) considered. The role plasmids play in antimicrobial compound production was also investigated. Each isolate was grown in fermentation media containing Sodium dodecyl sulphate and Ethedium Bromide, at varying concentrations, to facilitate for plasmid curing. With each sample, distinct colonies were identified with varying pigmentations most dominant being a cream colour. The identity of the isolated strains was achieved through sequencing of 16S rDNA. Phylogenetic analysis showed that isolate A16 had 80 percent homology with Pseudomonas plecoglossicida strain P4 and share a close ancestor with isolates Y52 and Y81, also isolate Y89 showed a 90 percent homology with Pseudomonas sp. Co-11a. With the exception of isolate A16, the isolates which were active against Gram-negative bacteria lost activity as the screening processes continued. When looking at temperature variations, isolates Y81 and A16 were highly active with maximum activity observed at 35˚C while Y89 performed best at 25˚C and Y52 showed constant activity across all studied temperatures. The plasmids in all isolates were found to be 48.5 kb in size with the exception of isolate Y89 which was 20 kb. The plasmids were cured at concentrations of (1 mg/ml; 5 mg/ml; 7 mg/ml; 10 mg/ml; 11 mg/ml) SDS and (125 μg/ml; 6.5 μg/ml; 5μg/ml) EtBr. The curing process also showed changes in both the antimicrobial activity of the isolates as well as their physical characteristics. The isolates are the first reported Pseudomonas species from Hogsback forest reserve with the ability to produce antimicrobial compounds which are active against Gram-positive and Gram-negative bacteria. These mesophilic bacteria also show that plasmids do not pay any role in the production of antimicrobial compounds and that the biosynthesis genes are highly likely to be chromosomal borne meaning that the production cannot be linked to horizontal transfer of genes. Therefore, these isolated Pseudomonas species provide a potential reservoir of antimicrobial compounds which may play an important role in the antimicrobial resistance phenomenon.

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Libri sul tema "Lcsh"

Headings for children's materials: An LCSH/Sears companion. Englewood Colo: Libraries Unlimited, 1993.

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Doe, John E. A guide to LCSH: Information for library school teachers. 2^a ed. Deweyville, Catalogueland: Libinfo Press, 2007.

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Tonta, Yasar Ahmet. LCSH and PRECIS in library and information science: A comparative study. Champaign, Ill: Graduate School of Library and Information Science, University of Illinois at Urbana-Champaign, 1992.

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Fountain, Joanna F. Subject headings for school and public libraries: An LCSH/Sears companion. 3^a ed. Englewood, Colo: Libraries Unlimited, 2001.

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Tonta, Yasar. LCSH and PRECIS in library and information science: A comparative study. [Champaign]: University of Illinois, Graduate School of Library and Information Science, 1992.

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Tonta, Yasar. LCSH and PRECIS in library and information science: A comparative study. [Champaign, Ill.]: University of Illinois, Graduate School of Library and Information Science, 1992.

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Fountain, Joanna F. Subject headings for school and public libraries: An LCSH/Sears companion. 2^a ed. Englewood, Colo: Libraries Unlimited, 1996.

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Fountain, Joanna F. Subject headings for school and public libraries: An LCSH/Sears companion. 4^a ed. Santa Barbara, Calif: Libraries Unlimited, 2012.

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Sumiyo, Yamaguchi, Kojima Satomi e Aichi Shukutoku Daigaku Toshokan, a cura di. Pasufaindā, LCSH, metadēta no rikai to jissen: Toshokan'in no tame no shudai kensaku tsūru sakusei gaido = Pathfinders, LCSH, and metadata : librarians' guide to subject access tool-making. Nagakute-chō (Aichi-ken): Aichi Shukutoku Daigaku Toshokan, 2005.

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Improving LCSH for use in online catalogs: Exercises for self-help with a selection of background readings. Littleton, Colo: Libraries Unlimited, Inc., 1986.

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Capitoli di libri sul tema "Lcsh"

Goossens, Paula. "Multi-Lingual Subject Heading Scheme Based on LCSH". In New Information Technologies and Libraries, 185–91. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5452-6_25.

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Urbanowicz, Ryan J., e Will N. Browne. "Applying LCSs". In Introduction to Learning Classifier Systems, 103–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-55007-6_5.

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Leung, Alexander K. C., William Lane M. Robson, Carsten Büning, Johann Ockenga, Janine Büttner, Hartmut Schmidt, Antonio V. Delgado-Escueta et al. "LCH". In Encyclopedia of Molecular Mechanisms of Disease, 1145–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-29676-8_6023.

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Kilgus, D. J., e B. D. Haas. "LCS Complete". In LCS® Mobile Bearing Knee Arthroplasty, 321–31. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-59347-5_19.

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Urbanowicz, Ryan J., e Will N. Browne. "LCS Concepts". In Introduction to Learning Classifier Systems, 21–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-55007-6_2.

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Urbanowicz, Ryan J., e Will N. Browne. "LCS Adaptability". In Introduction to Learning Classifier Systems, 71–102. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-55007-6_4.

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Gotthilf, Zvi, Danny Hermelin, Gad M. Landau e Moshe Lewenstein. "Restricted LCS". In String Processing and Information Retrieval, 250–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-16321-0_26.

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Braun-Falco, Markus, Henry J. Mankin, Sharon L. Wenger, Markus Braun-Falco, Stephan DiSean Kendall, Gerard C. Blobe, Christoph K. Weber et al. "Progenitor LCH". In Encyclopedia of Molecular Mechanisms of Disease, 1722. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-29676-8_5077.

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Amir, Amihood, Zvi Gotthilf e B. Riva Shalom. "Weighted LCS". In Lecture Notes in Computer Science, 36–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-10217-2_7.

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Caneba, Gerard, e Yadunandan Dar. "LCST–UCST-Based Copolymerizations". In Emulsion-based Free-Radical Retrograde-Precipitation Polymerization, 29–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19872-4_4.

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Atti di convegni sul tema "Lcsh"

Kiyota, Yoji, Hiroshi Nakagawa, Satoshi Sakai, Tatsuya Mori e Hidetaka Masuda. "Exploitation of the wikipedia category system for enhancing the value of LCSH". In the 2009 joint international conference. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1555400.1555488.

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Mira, Fahad, Antony Brown e Wei Huang. "Novel malware detection methods by using LCS and LCSS". In 2016 22nd International Conference on Automation and Computing (ICAC). IEEE, 2016. http://dx.doi.org/10.1109/iconac.2016.7604978.

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Alzaharnah, Iyad T., Warren P. Seering e Maria C. Yang. "Exploration of the Use of Design Methods With the Design Structure Matrix for Integrating New Technologies Into Large Complex Systems". In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-70521.

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Integrating products of basic technology research and development efforts into Large Complex Systems (LCSs) requires systematic approaches. It has been observed that because of the complexity associated with LCSs, no single structured design method will suffice for integrating new technologies into an LCS. In this work, we explore through the literature how an integrated design approach involving the Design Structure Matrix (DSM) with several design methods (mainly those involving other matrix-based methods) might support the introduction of new technologies into large complex facilities. The survey presented in the paper could provide support for future investigations on how to align the outcomes of R&D processes with the requirements of introducing new technologies in target LCSs. Also it could help in developing future understandings about transitioning basic outcomes of R&D into technology products and services.

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Han, Songlin, Shuxiu Liang e Zhaochen Sun. "Study of Pollution Transport Based on a Dynamical System Theory in Xiangshan Bay, China". In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-11291.

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Understanding the characteristic of pollution transport is essential for protecting the water quality in coastal areas, or bays. Lagrangian Coherent Structure (LCS), a concept from dynamical system theory, is applied to study pollution transport in Xiangshan Bay located in the middle coast of Zhejiang Province in China with strong tidal dynamics. The LCSs of flow field are defined as the attracting or repelling material curves in Finite-time Lyapunov exponent (FTLE) fields. The FTLE fields are computed based on the velocity data of the three-dimensional, high resolution hydrodynamic model developed for Xiangshan Bay. The LCSs can reveal the accumulation or dispersion characteristics for different waters in Xiangshan Bay. Further, some particle tracking experiments were conducted to study how these curves affect pollution transport through analyzing the Lagrangian trajectories. The main transport patterns in Xiangshan Bay are given finally. The results can help optimizing the sewage draining outlets location to make the pollution leave the bay more efficiently and managing the coastal pollution.

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Bloch, Josh, Jaakko Jäarvi, David Musser, Sibylle Schupp e Jeremy Siek. "LCSD". In Companion to the 21st ACM SIGPLAN conference. New York, New York, USA: ACM Press, 2006. http://dx.doi.org/10.1145/1176617.1176634.

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Liu, Dongan, Shaoxuan Lin e Zonghua Ding. "Analysis and Optimization of Heat Treatment Process for Lower Core Support Plate and Core Barrel of Reactor Vessel Internals". In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66678.

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Lower Core Support Plate (LCSP) and Core Barrel (CB) are key components of reactor vessel internals. Especially, since the fuel assemblies are installed on the LCSP, its flatness is critical for the safe operation of fuel assemblies. However, for SM1 and HY1 nuclear power plant (NPP), after heat treatment of the weld between LCSP and CB, the LCSP deforms seriously and its flatness exceeds the limitation, which results in a time-consuming and costly reprocessing. A numerical model of heat treatment process between LCSP and CB was developed first. The general rules of temperature and deformation distribution of LCSP and CB were obtained. Also, an experiment was conducted to validate the model. With the validated model, the deformation mechanism of LCSP due to heat treatment is studied. At last, the heat treatment process between LCSP and CB was optimized to avoid similar issues for the following NPPs.

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Cuzzocrea, Alfredo, e Paolo Serafino. "LCS-Hist". In the 12th International Conference. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1516360.1516448.

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Shirahata, Ryo, Shin’ichi Agari e Kenjiro T. Miura. "Input of Log-Aesthetic Curves by Use of Control Points: Plugging an LA Curve Module in a Commercial Geometric Modeler". In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-29223.

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In the field of industrial design, the aesthetic design is an important element to determine the quality of products and it is inevitable for them to make it aesthetic and attractive to improve the total quality of the shape design. If we can find an equation of aesthetic curves, it is expected that the quality of the curve design improves drastically because we can use it as a standard to generate, evaluate, and deform the curves. The log-aesthetic curve was proposed to generate high-quality curves efficiently [6]. Harada et al. insist that natural aesthetic curves like birds’ eggs and butterflies’ wings as well as artificial ones like Japanese swords and key lines of automobiles have such a property that their logarithmic curvature histograms (LCHs) can be approximated by straight lines and there is a strong correlation between the slopes of the lines and the impressions of the curves. Miura et al. defined the LCH analytically with the aim of approximating it by a straight line and propose new expressions to represent an aesthetic curve whose LCH is given exactly by a straight line. Furthermore they derive general formulas of aesthetic curves that describe the relationship between their radiuses of curvature and lengths. Also they defined the self-affinity possessed by the curves satisfying the general equations of aesthetic curves. The proposed curve is called the log-aesthetic curve. Agari et al. [1] proposed a method to input compound-rhythm log-aesthetic curves by use of four control points. Yoshida and Saito [2] proposed a method to generate log-aesthetic curves using three control points by searching for one variable, although Agari’s method searches for two variables. In this paper we compare Agari’s method with Yoshida-Saito’s method, and check out whether both of them generate the same curve. Next, we propose an efficient method to input log-aesthetic curve segments with an inflection point. Furthermore we try to improve the quality and the efficiency of the aesthetic design by plugging an log-aesthetic curve module in a commercial geometric modeler “FullMoon”.

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Suleesathira, Raungrong. "Robust LCSS Beamformer against DOA Mismatch". In IAIT2020: The 11th International Conference on Advances in Information Technology. New York, NY, USA: ACM, 2020. http://dx.doi.org/10.1145/3406601.3406609.

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Bansal, Anshika, e Namit Mahajan. "LCSR application to radiative tau decay". In The Ninth Annual Conference on Large Hadron Collider Physics. Trieste, Italy: Sissa Medialab, 2021. http://dx.doi.org/10.22323/1.397.0193.

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Rapporti di organizzazioni sul tema "Lcsh"

A.J. Redd e D.W. Ignat. LCS Users Manual. Office of Scientific and Technical Information (OSTI), febbraio 1998. http://dx.doi.org/10.2172/3751.

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Anderson, Tom. Littoral Combat Ship (LCS). Fort Belvoir, VA: Defense Technical Information Center, novembre 2015. http://dx.doi.org/10.21236/ad1019492.

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Eichelberger, Charles W., e J. P. Kusior. Liquid Cooled Heat Sink with Through Vias (LCHS). Fort Belvoir, VA: Defense Technical Information Center, settembre 1993. http://dx.doi.org/10.21236/ada281450.

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Louvet, Yoann, Stephan Fischer, Simon Furbo, Federico Giovanetti, Franz Mauthner, Daniel Mugnier e Daniel Philippen. INFO Sheet A01: LCOH for Solar Thermal Applications - Guideline for levelized cost of heat (LCOH) calculations for solar thermal applications. IEA SHC Task 54, dicembre 2017. http://dx.doi.org/10.18777/ieashc-task54-2017-0015.

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Zue, Victor, John Wroclawski e Michael Bolotski. Project Listen Compute Show (LCS) - Marine. Fort Belvoir, VA: Defense Technical Information Center, febbraio 2004. http://dx.doi.org/10.21236/ada420411.

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Davidson, Ross, J. E. Wilson e Brian Berchtold. LCS-1 Freedom Reduced Manning Study. Fort Belvoir, VA: Defense Technical Information Center, agosto 2007. http://dx.doi.org/10.21236/ada480311.

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Carlson, Carl, Bradd C. Hayes, Hank Kamradt e Gregg Hoffman. Littoral Combat Ship (LCS) Characteristics Task Force. Fort Belvoir, VA: Defense Technical Information Center, luglio 2002. http://dx.doi.org/10.21236/ada433152.

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Moton, Casey. Littoral Combat Ship Mission Modules (LCS MM). Fort Belvoir, VA: Defense Technical Information Center, novembre 2015. http://dx.doi.org/10.21236/ad1019489.

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Zarrieß, Benjamin, e Anni-Yasmin Turhan. Most Specific Generalizations w.r.t. General EL-TBoxes. Technische Universität Dresden, 2013. http://dx.doi.org/10.25368/2022.196.

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In the area of Description Logics the least common subsumer (lcs) and the most specific concept (msc) are inferences that generalize a set of concepts or an individual, respectively, into a single concept. If computed w.r.t. a general EL-TBox neither the lcs nor the msc need to exist. So far in this setting no exact conditions for the existence of lcs- or msc-concepts are known. This report provides necessary and suffcient conditions for the existence of these two kinds of concepts. For the lcs of a fixed number of concepts and the msc we show decidability of the existence in PTime and polynomial bounds on the maximal roledepth of the lcs- and msc-concepts. The latter allows to compute the lcs and the msc, respectively.

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Goffe, L., e J. E. Held. Human Factors evaluation of LCS 254 and 255. Office of Scientific and Technical Information (OSTI), maggio 1993. http://dx.doi.org/10.2172/10167353.

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