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Minkovska, Viara, Bernard Peybernès, Pierre Cugny e Todor Nikolov. "Analyse quantitative des faciès carbonatés et cycles T–R de haute fréquence dans le Barrémien du Prébalkan central (Bulgarie)". Comptes Rendus Geoscience 336, n. 10 (luglio 2004): 931–38. http://dx.doi.org/10.1016/j.crte.2004.02.009.
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Zheng, Shikang, Kai Chen, Xinping Lin, Shiqian Liu, Jie Han e Guomin Wu. "Quantitative analysis of facial proportions and facial attractiveness among Asians and Caucasians". Mathematical Biosciences and Engineering 19, n. 6 (2022): 6379–95. http://dx.doi.org/10.3934/mbe.2022299.
Testo completoAbstract (sommario):
<abstract> <p>It has been proposed that the proportions of the human face are crucial for facial aesthetics. If this is the case, we should describe the relationship among proportions of face components quantitatively. This study aims to develop a mathematical model of facial proportions to provide a quantitative description of facial attractiveness. Furthermore, we expect that plastic surgeons can use models in clinical work to enhance communication efficiency between doctors and patients. Face alignment technique was used to analyse 5500 frontal faces with diverse properties (male/female, Asian/Caucasian, ages) to obtain the ratios among the nose length ($ {N}_{L} $), the nasal base width ($ N $), and the inner canthus width ($ {E}_{I} $). A mathematical model ($ {N}_{L}^{2} = a{E}_{I}\mathrm{*}{N}_{L}+b{E}_{I}\mathrm{*}N+cN\mathrm{*}{N}_{L} $) was developed to describe the relationship among these proportions. To validate the effectiveness of this approach, we simulated the post-operative photos using Adobe Photoshop. Our findings show that the ratio of nose length to nose width, the ratio of inner canthus width to nose length and the ratio of inner canthus to nose width play a significant role in determining facial attractiveness. These results provide a possible strategy to quantitatively describe the relationship among human face proportions.</p> </abstract>
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Anbar, M., B. M. Gratt e D. Hong. "Thermology and facial telethermography. Part I: History and technical review". Dentomaxillofacial Radiology 27, n. 2 (1 marzo 1998): 61–67. http://dx.doi.org/10.1038/sj/dmfr/4600314.
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Abstract This paper is a review of historical trends and technical advances in measurement of skin temperature. Most biochemical processes generate heat which must be dissipated. Skin is the major route for heat dissipation using blood as the heat exchange fluid. Skin temperature is an indicator of aberrations in metabolism, hemodynamics or in neuronal thermoregulatory processes. Since most of the heat dissipation of skin is by infrared blackbody emission, skin temperature should be measured without contact by monitoring the emitted infrared radiation. This has been the basis of telethermography. Recent advances in computing technology combined with advanced infrared sensor technology has led to the development of dynamic area telethermometry (DAT) which promises to be as an important new quantitative method to analyse the pathophysiology of thermoregulatory processes.
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Omolaf, BABALOLA Ebenezer, e OLUDARE Precious Ize. "A Quantitative Approach to Challenges Facing Online and Physical Classes in Social Studies Learning Higher Education". Jurnal Pendidikan Ilmu Sosial 31, n. 1 (25 giugno 2022): 119–30. http://dx.doi.org/10.17509/jpis.v31i1.63318.
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The aim of this research is to investigate the challenges faced by online and physical classes in social studies learning in higher education. This condition causes differences in online or physical face-to-face classes. Descriptive research of the survey type was employed to achieve the purpose of this study. Students in five randomly selected faculties in University of Ilorin, Nigeria made up the study target population. In order to choose sample from each of the selected faculties, proportionate sampling procedure was used. The actual sample size for the study was 200 Undergraduates, who were chosen using random selection techniques. Descriptive statistics of mean score were used to analyse the information obtained from the respondents. The findings of this study shows that students faced challenges while learning in both online and physical classrooms. It was concluded that despite the underlying similarities between online and physical classroom, the two modalities are very different from one another. Online teaching is typically student-centered which necessitates active learning, in contrast to traditional classroom instruction, which has been known to be teachers-centered and call for passive learning. It was a challenge for teachers to move from face to face in class mode to virtual learning, changing their teaching methodologies, and managing their time. And it was also a challenge to develop content which did not only covers the curriculum but also engage the learners.
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Al-Rantisi, Ahmed Mohammed, Reem Abdulmotaleb Abuiyada, Ali Suhail Tabook e Mohamed Mohamed Kandil. "Challenges Facing Juvenile Delinquent Rehabilitation Institutions in Palestine Considering the Sustainable Development Goals". Journal of Lifestyle and SDGs Review 4, n. 3 (26 settembre 2024): e01937. http://dx.doi.org/10.47172/2965-730x.sdgsreview.v4.n03.pe01937.
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Introduction: A widespread occurrence, juvenile delinquency affects children's development and poses a serious threat to society. Despite being a global problem, its impacts are more noticeable in developing countries like Palestine, since there are not enough resources to help them recover from it. Objective: therefore, the current study was designed to determine the challenges facing juvenile delinquent rehabilitation institutions in Palestine. Method: In this study, the quantitative approach to data collection and analyses was used. Questionnaires were used in data collection after testing their validity and reliability. The target population was all juvenile delinquents with a number of 55 and all social workers at Al-Rabie Foundation for juvenile care of Gaza and their number 14, data were collected during August 2023. The data were tabulated, and frequency distribution tables were prepared. descriptive statistics were used to analyse the data by statistical analysis SPSS version 26 statistical analysis programme. Results and Discussion: The results of the study showed that the Palestinian government in Gaza should renovate the Al-Rabie Foundation to its full potential, this should involve both infrastructure and personnel development, and adequate funds should be made available to meet the basic needs of juvenile delinquents such as food, clothing, and cleanliness.
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Ding, Xuesong, Tristan Salles, Nicolas Flament e Patrice Rey. "Quantitative stratigraphic analysis in a source-to-sink numerical framework". Geoscientific Model Development 12, n. 6 (28 giugno 2019): 2571–85. http://dx.doi.org/10.5194/gmd-12-2571-2019.
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Abstract. The sedimentary architecture at continental margins reflects the interplay between the rate of change of accommodation creation (δA) and the rate of change of sediment supply (δS). Stratigraphic interpretation increasingly focuses on understanding the link between deposition patterns and changes in δA∕δS, with an attempt to reconstruct the contributing factors. Here, we use the landscape modelling code pyBadlands to (1) investigate the development of stratigraphic sequences in a source-to-sink context; (2) assess the respective performance of two well-established stratigraphic interpretation techniques: the trajectory analysis method and the accommodation succession method; and (3) propose quantitative stratigraphic interpretations based on those two techniques. In contrast to most stratigraphic forward models (SFMs), pyBadlands provides self-consistent sediment supply to basin margins as it simulates erosion, sediment transport and deposition in a source-to-sink context. We present a generic case of landscape evolution that takes into account periodic sea level variations and passive margin thermal subsidence over 30 million years, under uniform rainfall. A set of post-processing tools are provided to analyse the predicted stratigraphic architecture. We first reconstruct the temporal evolution of the depositional cycles and identify key stratigraphic surfaces based on observations of stratal geometries and facies relationships, which we use for comparison to stratigraphic interpretations. We then apply both the trajectory analysis and the accommodation succession methods to manually map key stratigraphic surfaces and define sequence units on the final model output. Finally, we calculate shoreline and shelf-edge trajectories, the temporal evolution of changes in relative sea level (proxy for δA) and sedimentation rate (proxy for δS) at the shoreline, and automatically produce stratigraphic interpretations. Our results suggest that the analysis of the presented model is more robust with the accommodation succession method than with the trajectory analysis method. Stratigraphic analysis based on manually extracted shoreline and shelf-edge trajectory requires calibrations of time-dependent processes such as thermal subsidence or additional constraints from stratal terminations to obtain reliable interpretations. The 3-D stratigraphic analysis of the presented model reveals small lateral variations of sequence formations. Our work provides an efficient and flexible quantitative sequence stratigraphic framework to evaluate the main drivers (climate, sea level and tectonics) controlling sedimentary architectures and investigate their respective roles in sedimentary basin development.
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Kiula, Asha Amri, e Gipson Raphael Ole Kinisa. "Challenges Facing Procurement Processes Digitalization: A Case of Tanzania Electric Supply Company Limited - Dar es Salaam". American Journal of Supply Chain Management 7, n. 1 (19 dicembre 2023): 68–78. http://dx.doi.org/10.47672/ajscm.1680.
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Purpose: This study aimed to assess challenges facing digitalization of procurement processes at Tanzania Electric Supply Company Limited (TANESCO) in Dar es Salaam.
Materials and Methods: Technology Acceptance Model was utilized in this study. This research utilized a mixed research approach, combining quantitative and qualitative methods, targeting all 408 employees across various Tanesco departments. Sampling techniques included simple random and purposive sampling, with data collected through questionnaires, interviews, and documentary review. Descriptive statistics, facilitated by SPSS version 26, were employed for quantitative data analysis, while content analysis was utilized to analyse the qualitative data obtained from interviews.
Findings: The challenges identified in this study, include concerns about limited vendor relationship improvements and the need for enhanced transparency. Based on the findings, it is recommended that TANESCO continues to embrace digitalization in its procurement processes but focuses on addressing challenges to maximize its benefits.
Implication to Theory, Practice and Policy: Future research should examine employee attitudes and the effectiveness of change management strategies in the context of digital procurement could contribute to a comprehensive understanding of the human dimension in the digitalization journey.
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Faedo, Nahuel Ivan, Montse Corrius e Xavier Ginesta. "Are Women Sports Journalists in Spain Truly Progressing or Facing “Pseudo-Progress”?" Journalism and Media 5, n. 3 (27 agosto 2024): 1211–27. http://dx.doi.org/10.3390/journalmedia5030077.
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Sports journalism has become one of the news products with the most significant social reach in the press, radio, television and digital media. Despite the significant presence of women in journalism, they continue to face gender-based stereotypes. In Spain, not very many women can effectively access the labour field of sports journalism, and those who do find themselves in a space dominated by men, which results in a perpetuation of the existing imbalances in society. The main objective of this study is to analyse the evolution of the roles developed by women journalists in the article-production aspect of the Spanish sports press between 2010 and 2022. We use quantitative content analysis, studying the articles published in Marca and Mundo Deportivo during the second week of June in 2010, 2014, and 2018, and the third week of November 2022; in each of these years, the men’s FIFA World Cup was played. The results of this study show that: (a) women journalists have an almost invisible role in the production of articles, and (b) rather than progress, women are facing “pseudo-progress”, a more appropriate term for the appearance of a change that is not actually occurring.
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Ramsa, Haitham Abdulla, Yahya Hamad Sheikhr e Abubakar Diwani Bakari. "Challenges Facing the Use of Electronic Fiscal Devices for Tax Reporting in Zanzibar". East African Journal of Information Technology 7, n. 1 (24 gennaio 2024): 60–67. http://dx.doi.org/10.37284/eajit.7.1.1708.
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The study aims to identify the challenges facing the use of Electronic Fiscal Devices (EFDs) for tax reporting. The study applied a descriptive research design where primary data was used with a quantitative research approach. The sample size of the study was 98 taxpayers obtained using Yamane’s formula. SPSS v.26 was used to analyse the data. Results revealed that the challenges facing the use of EFDs for tax reporting include network problems, lack of trust in the use of EFDs for tax reporting, training were not enough, customers do not have a culture of requesting receipts, high cost of EFDs and EFDs often breakdown and not working. This study recommends that the government should provide more training to taxpayers and educate the public about the importance of tax and claiming receipts, and reduce the price of EFDs to encourage more taxpayers to afford to buy the machine or, if possible, to be given to taxpayers free of charge. Also, the government should provide good infrastructure to solve a slow or no network and provide strong punishment for those taxpayers who do not issue a receipt and for those customers who do not request a receipt
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Elias, Bernd B. "Analyse quantitative". Études littéraires 18, n. 2 (1985): 387. http://dx.doi.org/10.7202/500707ar.
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Chirinda, Brantina, Mdutshekelwa Ndlovu e Erica Spangenberg. "Mathematics Learners’ Perceptions of Emergency Remote Teaching and Learning during the COVID-19 Lockdown in a Disadvantaged Context". International Journal of Learning, Teaching and Educational Research 21, n. 1 (30 gennaio 2022): 174–94. http://dx.doi.org/10.26803/ijlter.21.1.11.
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The COVID-19 global pandemic’s impact on education will take years to resolve. At this point, it is sensible to ponder the big questions of mathematics teaching and learning in disadvantaged contexts. This descriptive mixed-methods study is focused on the learners’ perceptions of the Emergency Remote Teaching and Learning (ERTL) of mathematics during the COVID-19 lockdown. The study was conducted with 137 learners at public secondary schools in a disadvantaged context in South Africa. Purposive and stratified random sampling techniques were used to select the respondents. The data was collected through a Google-generated semi-structured questionnaire. Content analysis was used to analyse the qualitative data from the open-response items. The quantitative data was analysed using the Statistical Package for the Social Sciences. The findings were that most learners in resource-constrained contexts neither enjoyed nor benefitted from the ERTL of mathematics and preferred face-to-face classroom interactions with the teachers. Many learners stated that they were used to seeing the teachers’ gestures, body language, and facial expressions. Most learners indicated that it was challenging not to work in groups when solving mathematics problems and that they could not learn mathematics productively at home. Further findings were that the COVID-19 pandemic has negatively impacted learners in disadvantaged contexts since they did not have adequate digital resources and internet connectivity to learn mathematics remotely. The COVID-19 pandemic will end one day. Studying the learners’ perceptions of the ERTL assists in the creation of programmes that can enhance digital mathematics teaching and learning in disadvantaged contexts.
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Chatenet, P., J. Haury, M. Botineau e F. Picaud. "Impact de pollutions ponctuelles sur les phytocénoses des rivières acides à neutres du Limousin (Massif Central, France)". Revue des sciences de l'eau 15, n. 1 (12 aprile 2005): 397–410. http://dx.doi.org/10.7202/705461ar.
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L'impact des pollutions ponctuelles sur les phytocénoses aquatiques est étudié autour des rejets de 12 agglomérations dont 9 sont équipées d'une station d'épuration. Un échantillonnage systématique avec segmentation du cours d'eau autour de chaque rejet est réalisé. Sur chaque secteur, des relevés de végétation sont pratiqués au niveau de faciès d'écoulements homogènes dont on caractérise le milieu physique parallèlement à une analyse physicochimique de l'eau. L'ensemble des rejets provoque globalement une élévation de la conductivité, des teneurs en ammonium, nitrates et orthophosphates. Cela ce traduit par la régression de la phytocénose à Callitriche hamulata et Myriophyllum alterniflorum, par le développement de Ranunculus peltatus, Callitriche platycarpa et d'espèces cryptogames telles que Leptodyctium riparium, ou Melosira sp. Une Analyse en Composantes Principales menée sur l'ensemble des données permet d'opposer des phytocénoses propres aux secteurs amonts (Scapania undulata, Chiloscyphus polyanthus) à d'autres situées au niveau de rejets (Callitriche platycarpa, Leptodictyum riparium, Melosira sp.,). Une Analyse Canonique de Correspondances valide le déterminisme de la qualité physicochimique de l'eau sur la végétation. La conductivité, les teneurs en ammonium, nitrates et orthophosphates deviennent prépondérants par rapport aux facteurs du milieu physique classiquement discriminants dans l'installation des phytocénoses dans les rivières limousines.
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Gazal, Abass A., Napat Jakrawatana, Thapat Silalertruksa e Shabbir H. Gheewala. "Water-Energy-Food Nexus Review for Biofuels Assessment". International Journal of Renewable Energy Development 11, n. 1 (2 novembre 2021): 193–205. http://dx.doi.org/10.14710/ijred.2022.41119.
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The appropriate use of limited natural resources for generating basic human needs such as energy, food, and water, is essential to help the society function efficiently. Hence, a new approach called nexus is being considered to resolve the effects of intrinsic trade-offs between the essential needs. A review of different methods and frameworks of the water-energy-food nexus was done in this article to give a detailed repository of information on existing approaches and advocate the development of a more holistic quantitative nexus method. Assessing biofuels under the water-energy-food nexus perspective, this review addresses the sustainability of bioenergy production. The results show the countries that can sustainably produce first-generation biofuels. Only a few methods have varied interdisciplinary procedures to analyse the nexus, and more analytical software and data on resource availability/use are needed to address trade-offs between these interacting resource sectors constituting the nexus. Also, “land” is suggested as an additional sector to consider in future studies using both the nexus index and life cycle assessment methodology. The review reveals that to tackle composite challenges related to resource management, cross-disciplinary methods are essential to integrate environmental, socio-political facets of water, energy, and food; employ collaborative frameworks; and seek the engagement of decision-makers.
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Mabrouk, Mohamed M., Khaled Salah Abdullateef, Ayman Hussein Abdelsattar, Mohamed Elbarbary, Sherif Kaddah e Wesam Mohamed. "Comparative Study between Modified Millard and White Roll Vermilion Flap Techniques in Unilateral Lip Repair: A Randomised Controlled Study". African Journal of Paediatric Surgery 21, n. 1 (2024): 18–27. http://dx.doi.org/10.4103/ajps.ajps_20_23.
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Abstract Background: Cleft lip and palate, which affects 0.5–1.6 out of every 1000 live births, is the most prevalent congenital defect of the head and neck. Several approaches, including quadrangular flaps, triangular flaps and rotation-advancement procedures, White Roll Vermilion Turn Down Flap (WRV flap) from the lateral lip element were employed by Mishra to modify Millard’s technique to create the vermilion and white roll on the medial lip segment. This study aimed to use the anthropometric measurements taken pre- and post-operation to evaluate quantitative assessment of modified Millard technique compared with WRV flap technique in unilateral cleft lip (UCL) repair. Materials and Methods: Prospective, randomised controlled study recruited infants scheduled for UCL repair. Infants aged 3–6 months, either complete or incomplete deformity. A total of 42 patients were randomized in 1:1 ratio to undergo either WRV flap technique (group A) or modified Millard technique (group B) and another control included 21 age-matched healthy children. We compared WRV flap procedure to Modified Millard’s procedure in terms of both qualitative (another surgeon’s opinion) and quantitative (anthropometric) evaluation. Results: Vertical lip length and philtral lip height significantly longer in Millard group (B) than WRV flap group (A) in immediate postoperative assessment and nasal width was significantly wider in WRV flap group (A) than Millard group (B) in 3-month post-operative assessment. The lip shape, the vermilion shape was better in Millard technique than WRV flap technique; however, this was statistically insignificant. However, no major difference in the overall results between the WRV flap and Millard rotation-advancement repairs. Conclusion: Anthropometric measurement of surgical outcome evaluates the surgical technique used and helps to compare between cleft and non-cleft side showing the degree of deformity and we used subjective assessment to analyse facial aesthetics. Overall results demonstrate no significant differences between modified Millard technique and WRV flap technique.
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Yu, Zhengqing, Yong Zhou, Kehang Mao, Bo Pang, Kai Wang, Tang Jin, Haonan Zheng et al. "Thermal facial image analyses reveal quantitative hallmarks of aging and metabolic diseases". Cell Metabolism 36, n. 7 (luglio 2024): 1482–93. http://dx.doi.org/10.1016/j.cmet.2024.05.012.
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Kirchner, Marieluise, e Matthias Selbach. "Quantitative Analyse der Proteomdynamik". BIOspektrum 17, n. 7 (novembre 2011): 756–59. http://dx.doi.org/10.1007/s12268-011-0123-2.
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Schiffmann, Kirsten Ingolf. "Quantitative SIMS Tiefenprofil Analyse". Vakuum in Forschung und Praxis 26, n. 2 (aprile 2014): 27–35. http://dx.doi.org/10.1002/vipr.201400548.
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Hallett, Benjamin W., William C. McClelland e Jane A. Gilotti. "The Timing of Strike-Slip Deformation Along the Storstrømmen Shear Zone, Greenland Caledonides: U–Pb Zircon and Titanite Geochronology". Geoscience Canada 41, n. 1 (4 marzo 2014): 19. http://dx.doi.org/10.12789/geocanj.2014.41.038.
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The Storstrømmen shear zone (SSZ) in the Greenland Caledonides is widely interpreted to have formed in a transpressional regime during sinistral, oblique collision between Baltica and Laurentia in the Silurian to Devonian. New mapping of the SSZ at Sanddal documents a 100 m thick, greenschistfacies mylonite zone cutting the eclogite to amphibolite-facies gneiss complex. We present U–Pb ion probe geochronology on zircon and titanite from a variety of lithologies that shows the SSZ was active from late Devonian to the Carboniferous (at least until 350 Ma). The age of thrusting in the foreland is not well known, but must be younger than the age of eclogite-facies metamorphism at ~400 Ma. It is, therefore, possible that contraction is the same age as strike-slip motion, and that transpression is a viable model. The timing of the SSZ is synchronous with dextral strike-slip displacement on the Germania Land deformation zone. Simultaneous displacement on sinistral and dextral, conjugate shear zones suggests that the SSZ is part of a strikeslip fault system that led to lateral escape of material northward (present day coordinates) during the waning stages of plate convergence between Laurentia and Baltica.SOMMAIRELa zone de cisaillement de Storstrømmen (SSZ) dans les Calédonides du Groenland est généralement comprise comme ayant été formée durant un régime de transpression sénestre lors de la collision oblique entre Baltica et Laurentie, du Silurien au Dévonien. Une nouvelle cartographie de la SSZ à Sanddal décrit une zone de 100 m d’épaisseur de mylonite au faciès des schistes verts qui recoupe un complexe de gneiss au faciès éclogite à amphibolite. Notre analyse géochronologique par sonde ionique U-Pb sur zircon et titanite sur diverses lithologies, montre que la SSZ a été active de la fin du Dévonien jusqu’au Carbonifère (au moins jusqu’à 350 Ma). L’âge du chevauchement dans l’avant-pays n’est pas bien connue, mais il doit être plus jeune que le métamorphisme au faciès d’éclogite à ~400 Ma. Il est donc possible que la contraction soit du même âge que le mouvement de coulissage, et que la transpression soit un modèle viable. La chronologie de la SSZ est synchrone au mouvement de coulissage dextre de la zone de déformation de Germania Land. Les déplacements simultanés, sénestre et dextre, sur des zones de cisaillement conjuguées permettent de penser que la SSZ fait partie d’un système de décrochement qui a engendré une éjection latérale de matériau vers le nord (selon les coordonnées actuelles) durant les stades de convergence des plaques Laurentie et Baltica.
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Teng, Ji, Qiang Fu, Jun Qin, Wenrui Ma, Guanyu Zhang e Kailong Feng. "Quantitative Evaluation of Paleocene Reservoir Diagenetic Facies by Logging in Lishui West Sag, East China Sea Basin". Minerals 14, n. 1 (26 dicembre 2023): 28. http://dx.doi.org/10.3390/min14010028.
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Exploration in the Lishui West Sag of the East China Sea Basin is limited by the scarcity of offshore drilling sites, and the prediction of deep, high-quality reservoirs is challenging using only geophysical methods. This study introduces a quantitative approach to diagenetic facies division in individual wells based on logging data, providing a new method and perspective for the prediction of deep, high-quality reservoirs. We employed comprehensive data from core, logging, thin-section casting, cathodoluminescence, scanning electron microscopy, and X-ray diffraction analyses from five wells to study the petrology, physical properties, diagenetic types and strength, and diagenetic minerals of the Paleocene sandstone reservoirs in the Lishui West Sag. Apparent compaction rate, apparent cementation rate, and other quantitative characterization parameters were used to calculate the comprehensive diagenetic coefficient (Cg), and the diagenetic facies were divided into compaction, cementation, and dissolution facies. A logging calculation model for the comprehensive diagenetic coefficient (Cg) and a quantitative identification method for diagenetic facies in individual well reservoirs were established through a fitting analysis between Cg and logging curve parameters. Continuous quantitative identification of vertical diagenetic facies in the five wells in the study area showed that the high-quality reservoirs in wells L1, L2, and L3 within the L1 gas field are characterized by extensive development of dissolution facies, while wells L4 and L5 are dominated by compaction and cementation facies, with poor reservoir properties and no industrial gas flow output. The results demonstrate the reliability of the model method. The establishment of this quantitative characterization method for diagenetic facies using logging data provides guidance for the prediction of favorable reservoirs.
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Zhao, Changbo, Guo-zheng Li, Fufeng Li, Zhi Wang e Chang Liu. "Qualitative and Quantitative Analysis for Facial Complexion in Traditional Chinese Medicine". BioMed Research International 2014 (2014): 1–17. http://dx.doi.org/10.1155/2014/207589.
Testo completoAbstract (sommario):
Facial diagnosis is an important and very intuitive diagnostic method in Traditional Chinese Medicine (TCM). However, due to its qualitative and experience-based subjective property, traditional facial diagnosis has a certain limitation in clinical medicine. The computerized inspection method provides classification models to recognize facial complexion (including color and gloss). However, the previous works only study the classification problems of facial complexion, which is considered as qualitative analysis in our perspective. For quantitative analysis expectation, the severity or degree of facial complexion has not been reported yet. This paper aims to make both qualitative and quantitative analysis for facial complexion. We propose a novel feature representation of facial complexion from the whole face of patients. The features are established with four chromaticity bases splitting up by luminance distribution on CIELAB color space. Chromaticity bases are constructed from facial dominant color using two-level clustering; the optimal luminance distribution is simply implemented with experimental comparisons. The features are proved to be more distinctive than the previous facial complexion feature representation. Complexion recognition proceeds by training an SVM classifier with the optimal model parameters. In addition, further improved features are more developed by the weighted fusion of five local regions. Extensive experimental results show that the proposed features achieve highest facial color recognition performance with a total accuracy of 86.89%. And, furthermore, the proposed recognition framework could analyze both color and gloss degrees of facial complexion by learning a ranking function.
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Manyasi, Annah Nawambisa, Ndiema Alice Chesambu, James Bill Ouda e Stephen O. Odebero. "Strategies to Mitigate Challenges Facing Students in Selection and Progression in Agriculture Career in Tertiary Institutions of Kenya". East African Journal of Agriculture and Biotechnology 6, n. 1 (26 settembre 2023): 345–58. http://dx.doi.org/10.37284/eajab.6.1.1448.
Testo completoAbstract (sommario):
The purpose of this study was to evaluate the strategies to be employed to mitigate challenges facing students in selection and progression in agriculture careers in tertiary institutions of Bungoma and Kakamega counties, Kenya. Further, the study formulated a conceptual framework based on the research variables, which also aided the formulation of hypotheses. Using a pragmatic philosophical standpoint as a lens, the study applied convergent design and convergent exploratory strategy for data collection, coupled with mixed methods applying both quantitative and qualitative for triangulation. The data was collected using questionnaires and interview protocols. Due diligence was taken into consideration while collecting and processing data to ensure both the reliability and validity of the study. The study used both descriptive and inferential techniques to analyse the collected data. Thematic analysis was appropriately used to guide and validate the contributions of the study. The greatest challenge to progression was poor Ministry policies on program selection in agriculture subjects in secondary schools of Kakamega and Bungoma Counties. The study revealed that the Ministry of Agriculture could review salary scales and create more job opportunities while the Ministry of Education could make agricultural programs business-oriented and lower entry grades to university or Technical and Vocational Education Training institutions, among other issues. The model coefficient analysis on strategies showed that creating more jobs (β=.221, p<.05), career guiding and counselling (β=.392, p<.05) and provision of scholarships (β=.137, p<.05) were some of the significant strategies to mitigate challenges facing progression in an agricultural career. The findings imply that the mentioned significant strategies are effective in mitigating challenges to progression in agricultural careers. The results obtained should guide efforts for suggesting strategies to promote the career progression of students in agricultural programs in Kenya and inform policymakers on the re-orientation of agriculture education
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Popa, Ion, Luminița Nicolescu, Simona Cătălina Ștefan e Ștefan Cătălin Popa. "The Effects of Corporate Social Responsibility (CSR) on Consumer Behaviour in Online Commerce: The Case of Cosmetics during the COVID-19 Pandemics". Electronics 11, n. 15 (5 agosto 2022): 2442. http://dx.doi.org/10.3390/electronics11152442.
Testo completoAbstract (sommario):
Corporate social responsibility (CSR) is a trend that manifests on a global level. The positive effects of CSR initiatives depend on the reaction of stakeholders, among which customers represent an important category. The purpose of this paper was to analyse the impact that CSR initiatives of cosmetics companies have on customer behaviour in both the short-term (buying intention) and the long-term (client loyalty) in the case of electronic commerce. Starting from the existing literature, the conceptual model proposed different dimensions of CSR as influencers (legal and ethical, philanthropic and community services, respect for environment, respect for consumers), and as mediators, which were considered as the brand trust and the competitive advantage of the company. The research method used was quantitative with the empirical data being collected from 1265 actual and potential consumers of cosmetic products. The hypotheses were tested using the partial least squares structural equation modelling (PLS-SEM). The main findings illustrated positive relationships between CSR and both buying intention and client loyalty, as the two facets of consumer behaviour. The interpretation is that CSR activities can increase both the consumer intentions to buy cosmetics products provided by CSR-involved companies, and increase the long-term customer loyalty for these companies. The research also provided evidence for a strong mediation effect of brand trust for both sides of customer behaviour. This illustrates that when brand trust is higher the effect of CSR initiatives on customer behaviour increases. The paper includes theoretical and practical contributions associated to the results of the research.
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Sharan, Lalith, Gabriele Romano, Julian Brand, Halvar Kelm, Matthias Karck, Raffaele De Simone e Sandy Engelhardt. "Point detection through multi-instance deep heatmap regression for sutures in endoscopy". International Journal of Computer Assisted Radiology and Surgery 16, n. 12 (8 novembre 2021): 2107–17. http://dx.doi.org/10.1007/s11548-021-02523-w.
Testo completoAbstract (sommario):
Abstract Purpose: Mitral valve repair is a complex minimally invasive surgery of the heart valve. In this context, suture detection from endoscopic images is a highly relevant task that provides quantitative information to analyse suturing patterns, assess prosthetic configurations and produce augmented reality visualisations. Facial or anatomical landmark detection tasks typically contain a fixed number of landmarks, and use regression or fixed heatmap-based approaches to localize the landmarks. However in endoscopy, there are a varying number of sutures in every image, and the sutures may occur at any location in the annulus, as they are not semantically unique. Method: In this work, we formulate the suture detection task as a multi-instance deep heatmap regression problem, to identify entry and exit points of sutures. We extend our previous work, and introduce the novel use of a 2D Gaussian layer followed by a differentiable 2D spatial Soft-Argmax layer to function as a local non-maximum suppression. Results: We present extensive experiments with multiple heatmap distribution functions and two variants of the proposed model. In the intra-operative domain, Variant 1 showed a mean $$F_1$$ F 1 of $$+ 0.0422$$ + 0.0422 over the baseline. Similarly, in the simulator domain, Variant 1 showed a mean $$F_1$$ F 1 of $$+ 0.0865$$ + 0.0865 over the baseline. Conclusion: The proposed model shows an improvement over the baseline in the intra-operative and the simulator domains. The data is made publicly available within the scope of the MICCAI AdaptOR2021 Challenge https://adaptor2021.github.io/, and the code at https://github.com/Cardio-AI/suture-detection-pytorch/.
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Anongba Braphond, Rodrigue Vincent Benjamin, Tohouri Privat, Soro Sandona Issa e Adja Miessan Germain. "Origine et Processus de Minéralisation des Eaux Souterraines dans la Partie Sud du Marais Poitevin (Nouvelle-AquitaineFrance) et de Son Substratum Carbonaté de l’Oxfordien Supérieur". European Scientific Journal, ESJ 19, n. 33 (30 novembre 2023): 231. http://dx.doi.org/10.19044/esj.2023.v19n33p231.
Testo completoAbstract (sommario):
Le Marais Poitevin est un territoire exploité à des fins économiques. Les activités anthropiques dans cette zone humide mettent en péril l’équilibre qui préside à la recharge naturelle et à leur qualité. L’un des problèmes à résoudre avant d’envisager des solutions de préservation et de sauvegarde de ce territoire est de connaître l’origine et de comprendre le processus de minéralisation des eaux du marais. Pour atteindre ces objectifs, les diagrammes de Piper et de Schöller-Berkaloff couplés à une approche statistique (Analyse en composantes principales) ainsi qu’à la corrélation entre les éléments chimiques ont mis en évidence un phénomène complexe d’eaux bicarbonatées et de mer avec des teneurs atteignant 74%. Les eaux analysées sont proches de la neutralité dans le Marais Poitevin avec un pH moyen de 7,2. Cette étude montre que ces eaux souterraines se singularisent par une grande diversité de leurs faciès en fonction de la position géographique qu’elles occupent. Les eaux localisées à l’Ouest de la zone d’étude sont essentiellement chlorurées sodiques alors que celles localisées à l’Est présentent des faciès qui vont de chlorurés sodiques à bicarbonatés calciques en passant par les faciès bicarbonatés sodiques et sulfatés sodiques.
Ainsi, deux origines quant à la minéralisation des eaux du Marais Poitevin ont été mises en évidence. Une minéralisation d’origine marine liée à une contamination des eaux du Marais Poitevin par de l’eau de mer, et une autre liée à la dissolution des minéraux carbonatés des formations encaissantes.
The Poitevin marsh, a territory exploited for economic purposes, is threatened by human activities. One of the problems to be solved before considering solutions for preservation and safeguarding of this territory is to know the origin and to understand the mineralization process of the Poitevin marsh groundwaters. To achieve these objectives, Piper and Schöller-Berkaloff diagrams coupled with a statistical approach (Principal Component Analysis) as well as the correlation between chemical elements highlighted a complex phenomenon of mixing bicarbonate and saline waters with contents reaching 74%. The results show that the waters are close to neutral with an average pH of 7.2. This study carried out on the Poitevin marsh groundwaters has made it possible to show that these waters are distinguished by a great diversity of facies depending on their geographical positions. Waters located to the west of the study area are essentially sodium-chloride type while those located to the East have facies ranging from sodium-chloride type to calcium-bicarbonate type, passing through sodium bicarbonate type and sodium sulfate type. So, two origins of the Poitevin marsh waters mineralization have been highlighted. Mineralization of marine origin linked to the contamination of Poitevin marsh groundwaters by sea water, and another linked to the dissolution of carbonate minerals from surrounding rocks.
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Zulkifli, Nordayana, e Kalsom Binti Ali. "ACCENTUATING THE POSITIVE ORGANIZATIONAL BEHAVIOUR AND WORK ENGAGEMENT CONCEPTS TOWARDS JOB PERFORMANCE QUALITY OF PUBLIC SECTOR STAFF IN WILAYAH PERSEKUTUAN PUTRAJAYA". Humanities & Social Sciences Reviews 5, n. 2 (30 settembre 2017): 134–40. http://dx.doi.org/10.18510/hssr.2017.529.
Testo completoAbstract (sommario):
This study is directed to answer the utilization of positive organization behaviour (POB) theory to encourage the actual state-like psychological resource capacities such as self-efficacy, hope, optimism, and resilience to ascertain workforce capabilities and issues of job performance quality aspects of in-role behaviour and extra-role behaviour, which the researcher believes it can contribute to the development of the workforce. The questions and relationship of many factors towards job performance quality has been widely debated in human resources field, with scholars discusses various facets such as psychological well-being, performance appraisal, and workplace environment, however the application and implementation of POB are still less discussed in the Asia country as a whole and Malaysia context as compared to the Western region.
This study will also examine the moderating effects of work engagement on the relationship of POB and job performance capabilities among public sector staff in Wilayah Persekutuan Putrajaya, which focuses to the “Pegawai Tadbir dan Diplomatik” (PTD) officer with the current service year maximum of 5 years. Data will be collected via questionnaires and the study will be using SPSS and AMOS to analyse the data. A quantitative study will be conducted towards the process of gaining data and a result regarding POB, work engagement and job performance quality to uncover the philosophy of organizational behaviour with the psychology adding concept and directly it hopes to reveal its antecedents and consequences.
Therefore, the findings will be expected to show the effects of POB and work engagement in job performance capabilities which substantial for the public sector staff in order to improve their service quality and higher performance.
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Samson-Dollfus, D. "Structure du sommeil et analyse quantitative". Neurophysiologie Clinique/Clinical Neurophysiology 27, n. 1 (gennaio 1997): 70–71. http://dx.doi.org/10.1016/s0987-7053(97)89881-4.
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Malz, Frank, e Dietmar Pfeifer. "NMR-Spektroskopie für die quantitative Analyse". Nachrichten aus der Chemie 56, n. 7-8 (luglio 2008): 781–84. http://dx.doi.org/10.1002/nadc.200854992.
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Stock, H. R., F. Höhl e P. Mayr. "Quantitative Analyse von nichtstöchiometrischen Titannitrid-Schichten". Materialwissenschaft und Werkstofftechnik 26, n. 1 (gennaio 1995): 27–31. http://dx.doi.org/10.1002/mawe.19950260108.
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Young, N. M., H. J. Chong, D. Hu, B. Hallgrimsson e R. S. Marcucio. "Quantitative analyses link modulation of sonic hedgehog signaling to continuous variation in facial growth and shape". Development 137, n. 20 (8 settembre 2010): 3405–9. http://dx.doi.org/10.1242/dev.052340.
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Kouassi, Amani Michel, Kouassi Ernest Ahoussi, Koffi Eugène Kouakou, Amos Mamadou e Jean Biemi. "Analyse comparative entre la distribution des fréquences de conductivité électrique et les faciès géochimiques des eaux des aquifères de socle (Côte d’Ivoire)". International Journal of Biological and Chemical Sciences 10, n. 1 (4 agosto 2016): 435. http://dx.doi.org/10.4314/ijbcs.v10i1.33.
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Prell, Julian, Stefan Rampp, Johann Romstöck, Rudolf Fahlbusch e Christian Strauss. "Train time as a quantitative electromyographic parameter for facial nerve function in patients undergoing surgery for vestibular schwannoma". Journal of Neurosurgery 106, n. 5 (maggio 2007): 826–32. http://dx.doi.org/10.3171/jns.2007.106.5.826.
Testo completoAbstract (sommario):
Object The authors describe a quantitative electromyographic (EMG) parameter for intraoperative monitoring of facial nerve function during vestibular schwannoma removal. This parameter is based on the automated detection of A trains, an EMG pattern that is known to be associated with postoperative facial nerve paresis. Methods For this study, 40 patients were examined. During the entire operative procedure, free-running EMG signals were recorded in muscles targeted by the facial nerve. A software program specifically designed for this purpose was used to analyze these continuous recordings offline. By automatically adding up time intervals during which A trains occurred, a quantitative parameter was calculated, which was named “train time.” A strong correlation between the length of train time (measured in seconds) and deterioration of postoperative facial nerve function was demonstrated. Certain consecutive safety thresholds at 0.5 and 10 seconds were defined. Their transgression reliably indicated postoperative facial nerve paresis. At less than a 10-second train time, discrete worsening, and at more than 10 seconds, profound deterioration of facial nerve function can be anticipated. Conclusions Train time as a quantitative parameter was shown to be a reliable indicator of facial nerve paresis after surgery for vestibular schwannoma.
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Ferrario, Virgilio F., e Chiarella Sforza. "Size and Shape of Soft-Tissue Facial Profile: Effects of Age, Gender, and Skeletal Class". Cleft Palate-Craniofacial Journal 34, n. 6 (novembre 1997): 498–504. http://dx.doi.org/10.1597/1545-1569_1997_034_0498_sasost_2.3.co_2.
Testo completoAbstract (sommario):
Objective: A method for the quantitative and qualitative analysis of the facial soft-tissue profile has been developed, and applied to analyze the pretreatment lateral head films of 240 orthodontic patients aged 8 to 14 years. Methods: Patients were subdivided for sex, age, and skeletal class. To standardize for different facial sizes, soft-tissue profiles from nasion to pogonion were traced in polar coordinates without modifications of facial shape, and standardized for an equal skeletal vertical dimension. Results: The method allowed a simple and rapid quantitative evaluation of soft-tissue profiles during facial growth. An approximate evaluation of the soft-tissue thickness at nose, lips, and chin was also possible. No particular mathematical knowledge was required at any step of the analysis. Conclusions: Facial soft-tissue size and shape were influenced by age and sex, and to a minor extent by skeletal class.
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Owada, Keiho, Takashi Okada, Toshio Munesue, Miho Kuroda, Toru Fujioka, Yota Uno, Kaori Matsumoto et al. "Quantitative facial expression analysis revealed the efficacy and time course of oxytocin in autism". Brain 142, n. 7 (16 maggio 2019): 2127–36. http://dx.doi.org/10.1093/brain/awz126.
Testo completoAbstract (sommario):
Abstract Discrepancies in efficacy between single-dose and repeated administration of oxytocin for autism spectrum disorder have led researchers to hypothesize that time-course changes in efficacy are induced by repeated administrations of the peptide hormone. However, repeatable, objective, and quantitative measurement of autism spectrum disorder’s core symptoms are lacking, making it difficult to examine potential time-course changes in efficacy. We tested this hypothesis using repeatable, objective, and quantitative measurement of the core symptoms of autism spectrum disorder. We examined videos recorded during semi-structured social interaction administered as the primary outcome in single-site exploratory (n = 18, crossover within-subjects design) and multisite confirmatory (n = 106, parallel-group design), double-blind, placebo-controlled 6-week trials of repeated intranasal administrations of oxytocin (48 IU/day) in adult males with autism spectrum disorder. The main outcomes were statistical representative values of objectively quantified facial expression intensity in a repeatable part of the Autism Diagnostic Observation Schedule: the maximum probability (i.e. mode) and the natural logarithm of mode on the probability density function of neutral facial expression and the natural logarithm of mode on the probability density function of happy expression. Our recent study revealed that increases in these indices characterize autistic facial expression, compared with neurotypical individuals. The current results revealed that oxytocin consistently and significantly decreased the increased natural logarithm of mode on the probability density function of neutral facial expression compared with placebo in exploratory (effect-size, −0.57; 95% CI, −1.27 to 0.13; P = 0.023) and confirmatory trials (−0.41; −0.62 to −0.20; P < 0.001). A significant interaction between time-course (at baseline, 2, 4, 6, and 8 weeks) and the efficacy of oxytocin on the natural logarithm of mode on the probability density function of neutral facial expression was found in confirmatory trial (P < 0.001). Post hoc analyses revealed maximum efficacy at 2 weeks (P < 0.001, Cohen’s d = −0.78; 95% CI, −1.21 to −0.35) and deterioration of efficacy at 4 weeks (P = 0.042, Cohen’s d = −0.46; 95% CI, −0.90 to −0.01) and 6 weeks (P = 0.10, Cohen’s d = −0.35; 95% CI, −0.77 to 0.08), while efficacy was preserved at 2 weeks post-treatment (i.e. 8 weeks) (P < 0.001, Cohen’s d = −1.24; 95% CI, −1.71 to −0.78). Quantitative facial expression analyses successfully verified the positive effects of repeated oxytocin on autistic individuals’ facial expressions and demonstrated a time-course change in efficacy. The current findings support further development of an optimized regimen of oxytocin treatment.
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Loan, Fayaz Ahmad, e Shueb Sheikh. "Analytical study of open access health and medical repositories". Electronic Library 34, n. 3 (6 giugno 2016): 419–34. http://dx.doi.org/10.1108/el-01-2015-0012.
Testo completoAbstract (sommario):
Purpose This study aims to assess open access (OA) repositories in the field of the health and medicine (H&M) available in the Directory of the Open Access Repositories (OpenDOAR) by analysing their various facets like geographical distribution, language diversity, collection size, content types, operational status, interoperability, updating policy and software used for content management. Design/methodology/approach To achieve the objectives of the study, the OpenDOAR was selected as a source for identifying the H&M repositories. The required data were manually collected from 1 to 30 April 2014 and analysed using various quantitative techniques to reveal the findings. Findings The results reveal that the OpenDOAR lists 254 repositories in the field of the H&M contributed by the 62 countries of the world, topped by the USA (15.4 per cent), followed by Japan (7.9 per cent) and the UK (7.5 per cent). The majority of the repositories are institutional (187, 73.6 per cent) in nature, having less than 5,000 items (161, 63.4 per cent) in the collection and mostly consisting of articles (76.0 per cent), theses (49.6 per cent), unpublished documents (33.1 per cent) and books (31.9 per cent). The linguistic assessment shows that the majority of the H&M repositories accept content written in English language (71.3 per cent), followed by Spanish (16.1 per cent) and Japanese (7.5 per cent). The updating policy of these repositories is not up to the mark, as only 67.0 per cent of the H&M repositories have been updated from 2008-2012, but the majority are still operational (91.7 per cent) and are compatible (67.3 per cent) with the Open Archive Initiative Protocol for Metadata Harvesting (OAI-PMH). About 30 software brands, both commercial and open source, have been used by administrators for creating these repositories and managing their content. DSpace is the most popular software used by 88 (34.7 per cent) repositories, followed by EPrints (43, 16.9 per cent) and Digital Commons (18, 7.1 per cent). Research limitations/implications The scope of this study is limited to the health and medical repositories listed in OpenDOAR, and hence the generalisation is to be cautioned. Practical implications This study is useful for library and information professionals and health and medical professionals across the globe. Originality/value This study is the first attempt to analyse the health and medical repositories in OA sites.
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Dobson, Seth. "Face to face with the social brain". Philosophical Transactions of the Royal Society B: Biological Sciences 367, n. 1597 (5 luglio 2012): 1901–8. http://dx.doi.org/10.1098/rstb.2011.0224.
Testo completoAbstract (sommario):
Recent comparative evidence suggests that anthropoid primates are the only vertebrates to exhibit a quantitative relationship between relative brain size and social group size. In this paper, I attempt to explain this pattern with regard to facial expressivity and social bonding. I hypothesize that facial motor control increases as a secondary consequence of neocortical expansion owing to cortical innervation of the facial motor nucleus. This is supported by new analyses demonstrating correlated evolution between relative neocortex size and relative facial nucleus size. I also hypothesize that increased facial motor control correlates with enhanced emotional expressivity, which provides the opportunity for individuals to better gauge the trustworthiness of group members. This is supported by previous evidence from human psychology, as well as new analyses demonstrating a positive relationship between allogrooming and facial nucleus volume. I suggest new approaches to the study of primate facial expressivity in light of these hypotheses.
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Bothwell, Marcella R., Jay F. Piccirillo, Rodney P. Lusk e Brock D. Ridenour. "Long-Term Outcome of Facial Growth after Functional Endoscopic Sinus Surgery". Otolaryngology–Head and Neck Surgery 126, n. 6 (giugno 2002): 628–34. http://dx.doi.org/10.1067/mhn.2002.125607.
Testo completoAbstract (sommario):
OBJECTIVE: We sought to determine whether functional endoscopic sinus (FES) surgery performed in children with chronic rhinosinusitis alters facial growth. STUDY DESIGN AND SETTING: This was a retrospective age-matched cohort outcome study performed at a tertiary care hospital. RESULTS: Sixty-seven children participated. There were 46 boys and 21 girls, and the mean age was 3.1 years at presentation and 13.2 years at follow-up. There were 46 children who underwent FES surgery and 21 children who did not undergo FES surgery. Quantitative anthropomorphic analysis was performed using 12 standard facial measurements. A facial plastic expert performed qualitative facial analysis. Both quantitative and qualitative analyses showed no statistical significance in facial growth between children who underwent FES surgery and those who did not undergo FES surgery. CONCLUSIONS: In this study, there was no evidence that FES surgery affected facial growth. SIGNIFICANCE: These results will aid physicians when discussing with parents the risks of FES surgery.
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Ghent, Edward. "Metamorphic facies: A review and some suggestions for changes". Canadian Mineralogist 58, n. 4 (1 luglio 2020): 437–44. http://dx.doi.org/10.3749/canmin.1900078.
Testo completoAbstract (sommario):
ABSTRACT The concept of metamorphic facies has been used as a tool in the interpretation of metamorphic rocks for almost 100 years. The preferred definition is a set of mineral assemblages which are repeatedly associated in space and time. Equilibrium or physical conditions (pressure-temperature) should not be part of the definition. The emphasis has always been on identification of the minerals with the petrographic microscope. Chemical analyses of the minerals using the electron microprobe is not necessary. The original definition of metamorphic facies used the metamorphic mineralogy of metabasic rocks. This bulk composition is not useful for the definition of all metamorphic facies. Several critical minerals in metabasic rocks cannot be readily identified with a petrographic microscope (albite versus oligoclase and actinolite versus hornblende). A revised set of metamorphic facies is proposed and mineral assemblages in both metabasic and pelitic rocks are outlined to provide definitions of the individual facies. Metamorphic facies should not be used to give quantitative estimates of P-T conditions. Only relative P-T can be estimated. The interpretation of “equilibrium” in metamorphic facies can be modeled using the Gibbs phase rule and simple assumptions about phases and components. This leads to an interpretation that metamorphic facies could represent divariant or higher variance equilibrium.
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Köller, W. "Quantitative Analyse von Autopsiefemora mit zementierter Hüftgelenkendoprothese". Zeitschrift für Orthopädie und ihre Grenzgebiete 131, n. 02 (15 maggio 2008): 143–50. http://dx.doi.org/10.1055/s-2008-1040219.
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Nekolla, S. G., e F. M. Bengel. "Quantitative Analyse von SPECT-Datensätzen des Herzens". Der Nuklearmediziner 27, n. 3 (2004): 161–68. http://dx.doi.org/10.1055/s-2004-822719.
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Zöller, Ilka, Carsten Diederich, Bettina Abendroth e Ralph Bruder. "Fahrsimulatorvalidität — Systematisierung und quantitative Analyse bisheriger Forschungen". Zeitschrift für Arbeitswissenschaft 67, n. 4 (dicembre 2013): 197–206. http://dx.doi.org/10.1007/bf03374409.
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Steudel, Ralf, Reinhard Strauss e Lothar Koch. "Quantitative HPLC-Analyse und Thermodynamik der Schwefelschmelze". Angewandte Chemie 97, n. 1 (gennaio 1985): 58–59. http://dx.doi.org/10.1002/ange.19850970116.
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Eidtmann, H., W. Jonat, H. Ostertag e T. Kunz. "Quantitative DNA-Analyse an 128 Mammakarzinom-Gewebsproben". Archives of Gynecology and Obstetrics 245, n. 1-4 (luglio 1989): 661–62. http://dx.doi.org/10.1007/bf02417485.
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Sonntag, D., M. Keller e K. M. Weinberger. "Quantitative Metabolomics-Analyse - effiziente Methode zur Bioprozessoptimierung". Chemie Ingenieur Technik 81, n. 8 (agosto 2009): 1261–62. http://dx.doi.org/10.1002/cite.200950543.
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Aleksandrov, Vadim, Marsel Kadyrov, Andrey Ponomarev, Denis Drugov e Irina Bulgakova. "Analysis of the Geological Structure of the Sredne-Ugutskoye Oil Field with Regard to an Increase in the Efficiency of its Development". Key Engineering Materials 785 (ottobre 2018): 94–100. http://dx.doi.org/10.4028/www.scientific.net/kem.785.94.
Testo completoAbstract (sommario):
The productive formations YUS11 and YUS12 are characterized by a strong lithologic and facies instability. The article shows the results of the analysis of the geological and technical interventions efficiency carried out on these sediments and defines their genetic dependence on the specific features of geological structure. The research objective is to analyze the geological structure of productive deposits, identify facies complexes and assess the effectiveness of geological and technical interventions. With the help of geological-field analysis, a quantitative evaluation of the technological effect obtained during the hydraulic fracturing of well formations, the repair and insulation works and a whole range of measures on intensification of inflow was carried out.
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Wolf, Markus, Andrea B. Horn, Matthias R. Mehl, Severin Haug, James W. Pennebaker e Hans Kordy. "Computergestützte quantitative Textanalyse". Diagnostica 54, n. 2 (aprile 2008): 85–98. http://dx.doi.org/10.1026/0012-1924.54.2.85.
Testo completoAbstract (sommario):
Zusammenfassung. Im Beitrag wird die deutsche Adaptation des Linguistic Inquiry and Word Count (LIWC) vorgestellt. Das LIWC ist ein computergestütztes Textanalyseprogramm mit integriertem Wörterbuch, das von Pennebaker und Kollegen (2001) entwickelt wurde, um Essays aus Experimenten zum expressiven Schreiben zu untersuchen. Es werden zwei Studien zur Güte und Praktikabilität des deutschen LIWC berichtet: (1) An einer Stichprobe zweisprachig vorliegender Texte (N = 122) wird die Äquivalenz der deutschen Übersetzung mit dem Original überprüft. (2) An einer Stichprobe von N = 104 E-Mails wird die Robustheit des Verfahrens gegenüber Schreibfehlern untersucht. Für die meisten LIWC-Kategorien zeigt sich eine gute Äquivalenz. Des Weiteren erweist sich das LIWC als robust gegenüber Schreibfehlern. Diese Befunde sprechen für die Brauchbarkeit des LIWC für die Analyse deutscher Texte. Die beobachtete Robustheit ist von erheblicher praktischer Bedeutung für die Analyse natürlicher geschriebener Sprache aus der computervermittelten Kommunikation.
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Fukuda, Sojiro, e Hajime Naruse. "Shape difference of mud clasts depending on depositional facies: application of newly modified elliptic Fourier analysis to hybrid event beds". Journal of Sedimentary Research 90, n. 10 (1 ottobre 2020): 1410–35. http://dx.doi.org/10.2110/jsr.2020.67.
Testo completoAbstract (sommario):
ABSTRACT Hybrid event beds are the deposits from sediment gravity flows that change their rheological behavior through their passage, entraining muddy sediments and damping turbulence. Muddy facies of hybrid event beds are often associated with abundant mud clasts which show a wide variety of size and shape. The variation of clast occurrence in hybrid event beds is expected to preserve the information of entrainment and transport processes of muddy sediments in submarine density currents. However, previous analyses of hybrid event beds have focused on describing the overall clast occurrence rather than the statistical size and shape analyses because traditional shape parameters are incapable of characterizing the complex shape of mud clasts. Here, a new quantitative grain-shape analysis of mud clasts is conducted and allows visualization of the spatial variation of clast size and shape, which suggests the wide variety of origin and transport systems of entrained mud clasts. This new method revises the traditional elliptic Fourier analysis, substituting Fourier power spectra (FPS) for traditional elliptic Fourier descriptors to overcome the mirror-wise shape problem. Further, principal-component analysis is shown to capture significant shape attributes more effectively than traditional shape parameters. The proposed method is applied to mud clasts in sediment-gravity-flow deposits in the lower Pleistocene Otadai Formation, central Japan. Results imply that there are distinctive shape and size differences of mud clasts that are strongly associated with depositional facies rather than the distance from the source. The clasts have a higher angularity than other facies in the debrite intervals in hybrid event beds. It is also shown that clasts in sandy, structureless facies have different characteristics in shapes based on elongation and convexity compared to laminated facies. Comparison between different shape-analysis methods demonstrates that none of the traditional methods are able to visualize these trends as effectively as the method presented herein. These results highlight the importance of the quantitative shape analysis of sediment grains and the effectiveness of FPS-based elliptic Fourier analysis.
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Gagnevin, D., J. S. Daly e G. Poli. "Insights into granite petrogenesis from quantitative assessment of the field distribution of enclaves, xenoliths and K-feldspar megacrysts in the Monte Capanne pluton, Italy". Mineralogical Magazine 72, n. 4 (agosto 2008): 925–40. http://dx.doi.org/10.1180/minmag.2008.072.4.925.
Testo completoAbstract (sommario):
AbstractA detailed field study to determine quantitatively the distribution of K-feldspar megacrysts, mafic microgranular enclaves (MME) and metasedimentary xenoliths has been carried out in the Monte Capanne pluton (Elba, Italy) with a view to evaluating the utility of this approach to petrogenetic investigations. Mafic microgranular enclaves are inferred to result from interactions between mafic and felsic magmas, while xenoliths attest to crustal assimilation occurring in the Monte Capanne magma chamber. In particular, we emphasize, based on our field data, that both processes are intimately linked, such that xenolith dissolution during assimilation was triggered by replenishment with hot mafic magma. It is suggested that the previously defined ‘San Piero’ and ‘San Francesco’ facies do not differ substantially, and are thus amalgamated and renamed as the ‘Pomonte’ facies. Results also indicate that the abundance of K-feldspar megacrysts is positively correlated with the volumetric abundance of MME in the Sant’ Andrea facies, which we link to a recharging, mingling and textural coarsening event that occurred at a rather late stage of magma-chamber evolution prior to emplacement. This study demonstrates how petrogenetic processes can be deciphered by detailed field quantitative analyses of granite-forming components, thus complementing geochemical investigations.
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Cuéllar, Eduardo Serna, e Luis Santamaría Solís. "FIRST USE OF STEREOLOGY TO QUANTIFY THE SURVIVAL OF FAT AUTOGRAFTS". Image Analysis & Stereology 23, n. 3 (3 maggio 2011): 187. http://dx.doi.org/10.5566/ias.v24.p187-193.
Testo completoAbstract (sommario):
It is not usual to perform quantitative analyses on surgical materials. Rather, they are evaluated clinically, through qualitative methods, and if quantitation is done, it is on a 2-dimensional basis. In this study, the long-term survival of fat autografts (FAG) in 40 subjects with facial soft tissue defects is quantified. An adipose tissue preparation from the abdomen obtained through liposuction and centrifugation is injected subcutaneously. Approximately 14 months later, the treated area is biopsied. Extensive computer-based histological analyses were performed using the stereological method in order to directly obtain three parameters: volume fraction of adipocytes in the fat tissue (VV), density (number per volume) of adipocytes in the fat tissue (NV), and the mean cell volume of adipocytes (VA) in each tissue sample. A set of equations based on these three quantitative parameters is produced for evaluation of the volumetric survival fraction (VSF) of FAG. The presented data evidenced a 66% survival fraction at the 14-month follow-up. In routine practice, it would be sufficient to perform this volumetric analysis on the injected and biopsied fat samples to know what fraction of the FAG has survived. This is an objective method for quantifying FAG survival and will allow a standardized comparison between different research series and authors.
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Darwin Nasution. "Risk Management Strategies in Facing Global Financial Market Volatility". Involvement International Journal of Business 1, n. 2 (30 aprile 2024): 167–77. http://dx.doi.org/10.62569/iijb.v1i2.30.
Testo completoAbstract (sommario):
Global financial market volatility refers to the unpredictable fluctuations in the prices of financial assets such as stocks, bonds, currencies, and commodities. This volatility can stem from various factors such as economic indicators, geopolitical events, policy changes, technological advancements, and investor sentiment. This research aims to analyze effective risk management strategies in facing global financial market volatility. Market volatility often triggers anxiety, uncertainty, and irrational investment decisions. In this situation, it is important for investors to adopt the right strategies to minimize risks and maximize long-term investment outcomes. In this study, data is collected from various sources related to global financial market volatility and risk management strategies adopted by investors during periods of uncertainty. Qualitative and quantitative analyses of this data are conducted to identify patterns of investor behavior and the effectiveness of applied risk management strategies. The research findings indicate that maintaining a long-term perspective, retaining portfolio diversification, and taking an active approach to risk management are effective strategies in dealing with market volatility. Open communication with financial professionals is also proven to be essential in helping investors stay calm and make rational decisions.
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Birk, Dieter. "Quantitative coal mineralogy of the Sydney Coalfield, Nova Scotia, Canada, by scanning electron microscopy, computerized image analysis, and energy-dispersive X-ray spectrometry". Canadian Journal of Earth Sciences 27, n. 2 (1 febbraio 1990): 163–79. http://dx.doi.org/10.1139/e90-017.
Testo completoAbstract (sommario):
Automated image and X-ray analysis, with a scanning electron microscope, has been used to "fingerprint" mineral particles in bituminous coals of the Sydney Coalfield and catalogue their chemical class and size distribution. Four seams (Hub, Harbour, Phalen, and Gardiner) were analyzed quantitatively for some 32 000 mineral particles; these analyses revealed particle-size and weight distributions for 27 chemical classes. Manual searches augmented the computer-automated scans, covering eight seams and recording a total of 35 mineral species, their paragenesis, and sites for 28 elements.Sydney seam mineralogy is dominated by pyrite and kaolinite, but illite, chlorite, siderite, ankerite, and quartz are locally prominent; these are accompanied by a large variety of accessory minerals (zircon, rutile, apatite, barite, gypsum, rare-earth phosphates, and ore minerals) and alteration products (goethite and hydrated sulphates). Individual column benches show geochemical fades with different mineral suites resulting from cyclic sedimentation, hydrologie conditions, and changes in pore-water chemistry during peat accumulation, coalification, and diagenesis. A sulphide facies and a siderite–chlorite facies are recognized within one seam (Harbour); these facies change vertically and laterally within lithotype bands.Stratigraphic correlation is precluded, but quantitative mineralogy can elucidate paleoenvironments and be applied to coal-cleaning technology (beneficiation) or environmental studies.