ScienceOpen Posters最新文献

Phyto-nanotechnology: Current status, Challenges, and leads for future 植物纳米技术:现状、挑战和未来的引领

ScienceOpen Posters Pub Date : 2021-10-02 DOI: 10.14293/s2199-1006.1.sor-.ppvb2vq.v1

S. Prakash, Vijay Rani Rajpal, S. Vaishnavi, R. Deswal

{"title":"Phyto-nanotechnology: Current status, Challenges, and leads for future","authors":"S. Prakash, Vijay Rani Rajpal, S. Vaishnavi, R. Deswal","doi":"10.14293/s2199-1006.1.sor-.ppvb2vq.v1","DOIUrl":"https://doi.org/10.14293/s2199-1006.1.sor-.ppvb2vq.v1","url":null,"abstract":"Nanoparticle-based studies in plants have a history of around two decades. The current spike in Phyto-nanotechnology is due to its potential to address the challenges of global food security. Nanoparticle (NP) uptake and translocation in plants are relatively well studied. From the Nano-Agri products like biosensors and nanocarriers to the acceleration of adaption of plants towards changing climate, NPs hold a bright future for next-generation agriculture. However, despite significant progress, commercialization of nanotechnology in agriculture struggles because regulations and legislations regarding Nano-based Agri-inputs are limited and non-specified. Several countries have not yet issued guidelines for the evaluation of Nano-based Agri-inputs and food products. Also, the mechanisms of interaction of NPs with plants and humans are not well understood. Therefore, the commercial application of Nano-based Agri-inputs in field conditions warrants the completion of proper safety and toxicological analyses. This review summarizes the current status of Phyto-nanotechnology with a discussion on present hurdles and possible solutions.","PeriodicalId":21568,"journal":{"name":"ScienceOpen Posters","volume":"2015 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87840980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Goldbach Comet 哥德巴赫彗星

ScienceOpen Posters Pub Date : 2021-09-20 DOI: 10.14293/s2199-1006.1.sor-.ppjfycn.v1

Jan Feliksiak

引用次数: 0

The Resolution of Riemann's hypothesis 黎曼假设的解析

ScienceOpen Posters Pub Date : 2021-09-20 DOI: 10.14293/s2199-1006.1.sor-.ppiil3l.v1

Jan Feliksiak

引用次数: 0

In vitro Characterization of Mesenchymal Stem Cell Biology on Biomimetic Poly-ε-caprolactone Nanofiber Scaffolding 仿生聚-ε-己内酯纳米纤维支架对间充质干细胞生物学的体外表征

ScienceOpen Posters Pub Date : 2021-09-01 DOI: 10.22541/au.163398433.31153232/v1

Gautam Ramesh, F. Franchi, S. Jana, M. Rodriguez-Porcel

{"title":"In vitro Characterization of Mesenchymal Stem Cell Biology on Biomimetic Poly-ε-caprolactone Nanofiber Scaffolding","authors":"Gautam Ramesh, F. Franchi, S. Jana, M. Rodriguez-Porcel","doi":"10.22541/au.163398433.31153232/v1","DOIUrl":"https://doi.org/10.22541/au.163398433.31153232/v1","url":null,"abstract":"Background: Myocardial infarction (MI) often results in permanent\u0000cardiac tissue necrosis and reduced heart functionality. Even with heart\u0000disease being the number one cause of death in the US, there are\u0000currently no effective methods of fully regenerating heart muscle\u0000post-myocardial infarction. Mesenchymal stem cells (MSCs) are a\u0000promising therapeutic option given their multi-potent nature and low\u0000host immune reaction. Bioengineered polymeric nanofiber scaffolds\u0000provide a structured growing environment and encourage cell elongation.\u0000Overview: This study characterizes MSC biology on poly-ε-caprolactone\u0000(PCL) nanofiber scaffolds in order to establish electrospun PCL\u0000nanofibers as a working biological scaffold for MSC growth, and to\u0000exhibit potential for further exploration of PCL nanofiber-grown MSC\u0000implants as a treatment for MI. Methods: MSCs were seeded on PCL\u0000scaffolds; cell viability was analyzed via XTT, cell apoptosis was\u0000analyzed via TUNEL/DAPI staining, and differentiation markers were\u0000analyzed via RT-PCR. Results: TUNEL/DAPI staining of confluent MSCs on\u0000PCL scaffolds showed low cell apoptosis over time. RT-PCR results showed\u0000no amplification of CD40 expression. Conclusion: PCL nanofibers seem to\u0000provide a suitable microenvironment for MSC seeding and proliferation.\u0000Further Direction: RT-PCR for CD80, CD86, COL1A1 (collagen), aSMA/Acta2\u0000(smooth muscle), Flk1/VEGF2 (endothelial), Sparc (Osteonectin,\u0000osteogenic), Adipoq (Adiponectin, adipogenic), Agre-cano (chondrogenic).","PeriodicalId":21568,"journal":{"name":"ScienceOpen Posters","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90630350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wnt Pathway Regulation by DOT1L Mediated Methylation of H3K79 in Non-Small Cell Lung Cancer DOT1L介导的H3K79甲基化对非小细胞肺癌Wnt通路的调控

ScienceOpen Posters Pub Date : 2021-08-30 DOI: 10.14293/s2199-1006.1.sor-.ppftkkb.v1

G. Ramesh, Theresa A. Reno, J. Kim, D. Raz

引用次数: 0

Quantitative Mapping of Alveolar Epithelial Cell Renewal in vivo 肺泡上皮细胞在体内更新的定量定位

ScienceOpen Posters Pub Date : 2021-08-27 DOI: 10.14293/s2199-1006.1.sor-.ppzscft.v1

Gautam Ramesh, A. Andalon, T. Desai

引用次数: 0

Enhanced Melanoma Classifier with VGG16-CNN VGG16-CNN增强黑色素瘤分类器

ScienceOpen Posters Pub Date : 2021-08-26 DOI: 10.14293/s2199-1006.1.sor-.ppn1w6k.v1

M. Adewunmi

{"title":"Enhanced Melanoma Classifier with VGG16-CNN","authors":"M. Adewunmi","doi":"10.14293/s2199-1006.1.sor-.ppn1w6k.v1","DOIUrl":"https://doi.org/10.14293/s2199-1006.1.sor-.ppn1w6k.v1","url":null,"abstract":"Melanoma is the most severe kind of skin cancer that is becoming more common in the Western world. This is still thought to be caused primarily by exposure to the sun. Patients with malignant melanoma have a wide range of prognoses; however public awareness initiatives encouraging early detection have resulted in considerable reductions in mortality rates. This disease primarily affects Caucasian men and women and has a terrible prognosis once it has spread to other parts of the body. As a result, early detection of this malignancy is critical for patient treatment success.\u0000 In this paper, we present an experimental result of a Melanoma Image Classifier using the VGG16 model for preprocessing the images dataset. Thedataset comprises 4596 image samples with 2239 images for training, 2239 images formodel validationand 118 images for testing the model. The resultant images were trained with a Convolutional Neural Network(CNN) Sequential model of a learning rate of 0.0001,adam optimizer with binary cross-entropy as loss and accuracy as a metric. The model yields an accuracy of 93%, thereby outperforming other Deep learning models. The approach is viable and effective, and it achieves the preliminary goal of classifying melanoma lesion images.","PeriodicalId":21568,"journal":{"name":"ScienceOpen Posters","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87812631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Avances y desafios en la clasificacion de imagenes provenientes de las camaras de vigilancia volcanica. 火山监测摄像机图像分类的进展和挑战。

ScienceOpen Posters Pub Date : 2021-08-23 DOI: 10.14293/s2199-1006.1.sor-.ppdfzgo.v1

C. Caicedo, Andrés Narvaez Zúñiga

{"title":"Avances y desafios en la clasificacion de imagenes provenientes de las camaras de vigilancia volcanica.","authors":"C. Caicedo, Andrés Narvaez Zúñiga","doi":"10.14293/s2199-1006.1.sor-.ppdfzgo.v1","DOIUrl":"https://doi.org/10.14293/s2199-1006.1.sor-.ppdfzgo.v1","url":null,"abstract":"El monitoreo volcánico exige oportunidad en el análisis de la información para lograr un acertado diagnóstico, sin embargo, se cuenta con un volumen considerable y una heterogeneidad de datos que pueden volver insostenible su manejo e interpretación para tomar decisiones en momentos de crisis volcánica.\u0000 Actualmente, el Servicio Geológico Colombiano (SGC) cuenta con 30 cámaras para la vigilancia volcánica instaladas en 24 volcanes activos, transmitiendo imágenes cada minuto o cada 5 minutos alcanzando ~40.000 imágenes por día (14.6 millones por año). Extraer la mayor cantidad de información posible de estas imágenes y hacerlo de forma organizada nos posibilita una mayor oportunidad y certeza frente a un eventual cambio o escenario en la actividad volcánica.\u0000 Adicionalmente hay otras razones que dificultan el proceso de organización de estas imágenes como son:\u0000 \u0000\u0000 \u0000 La complejidad de los fenómenos volcánicos estudiados.\u0000 \u0000 \u0000 La apropiación social de los conceptos sobre el fenómeno y cómo éstos se aplican al reconocimiento y clasificación de imágenes.\u0000 \u0000 \u0000 Las limitaciones intrínsecas de las imágenes.\u0000 \u0000 \u0000\u0000 En este trabajo se presentan los avances obtenidos a la fecha en el desarrollo e implementación de la herramienta software llamada VolCAM, utilizada dentro del monitoreo e investigación volcánica para la clasificación, procesamiento, análisis de imágenes y descarga de contenido. Además, se introducen los desafíos a los que se enfrentan los investigadores, dentro del procesamiento ulterior de la actividad superficial, para el diagnóstico y evaluación de la actividad volcánica, así como para la apropiación social del conocimiento geocientífico, dentro y fuera de la institución.","PeriodicalId":21568,"journal":{"name":"ScienceOpen Posters","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91305726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

How does the Facebook Algorithm rank the contents according to the interaction buttons? Facebook算法如何根据交互按钮对内容进行排名?

ScienceOpen Posters Pub Date : 2021-08-20 DOI: 10.14293/s2199-1006.1.sor-.ppou7f9.v1

Dávid Pócs

{"title":"How does the Facebook Algorithm rank the contents according to the interaction buttons?","authors":"Dávid Pócs","doi":"10.14293/s2199-1006.1.sor-.ppou7f9.v1","DOIUrl":"https://doi.org/10.14293/s2199-1006.1.sor-.ppou7f9.v1","url":null,"abstract":"\u0000 \u0000 Objective: This research aimed at understanding how social media contents are ranked by the Facebook Algorithm according to interaction buttons. Thecorrelations between Facebook users' interactions and the organic reach of the given content canhelp to gain this aim. \u0000 \u0000 \u0000 \u0000 Methods: We included 1025 non-paid, Facebook posts (N=1025). We collected thefollowing data in the post level. “Organic reach” is the number of people who saw the given non-paid content. The organicreach consisted of “fanreach” and “non-fan reach” according to previous “pagelike” activity. Theinvestigated interaction data was thefollowing: “Facebook reactions” (e.g., “like”); “shares”; “comments”; “clicks”; and “negative Facebook interactions” (e.g.,posthides).\u0000 \u0000 \u0000 \u0000 Results: A significant negative correlation was found between organic reach and “like” reaction. We observed the strongest significant positive correlations of organic reach with “comments”, “haha” and “love” reactions. Furthermore, fanreach correlated positively with “comments”, “haha” and “love” reactions, while non-fan reach correlated positively with “shares” and “clicks”.\u0000 \u0000 \u0000 \u0000 Conclusions: Some interactions on a post level can have higher priority in content ranking: “comments”, “haha”, “love”, and “sad” reactions. This study has shown that “like” reactions and “shares” can have a lower priority in content ranking. Our results suggest that a further categorization to fan-specific interactions (“haha” and “love”reactions, “comments”) and non-fan-specific interactions (“shares” and “clicks”) is needed. Finally, „shares” can generate more non-fans, however, “shares” can result in fewer fans. Thisexploratory research offers animportant insight into the Facebook content ranking for public health professionals who design Facebook-based interventions.","PeriodicalId":21568,"journal":{"name":"ScienceOpen Posters","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88722562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

COMPETENCIES OF MEDICAL LABORATORY PERSONNEL 医学实验室人员的能力

ScienceOpen Posters Pub Date : 2021-08-19 DOI: 10.14293/s2199-1006.1.sor-.ppvqkvl.v1

Christine Guerrero

{"title":"COMPETENCIES OF MEDICAL LABORATORY PERSONNEL","authors":"Christine Guerrero","doi":"10.14293/s2199-1006.1.sor-.ppvqkvl.v1","DOIUrl":"https://doi.org/10.14293/s2199-1006.1.sor-.ppvqkvl.v1","url":null,"abstract":"Competence is defined as the quality or state of having sufficientknowledge, judgment, skill, or strength for a particular duty or in a particularrespect.Thus, for medical technologists to be considered “competent” they haveto possess sufficient medical knowledge, practical judgment, skill in the laboratory,or demonstrable attributes necessary to the performance of being a medicallaboratory scientist.This study seeks to answer the problem of an observed competency gap in some areas in health care knowledge, literacy, and skills among medical laboratory personnel.\u0000 This study used a self-rated survey questionnaireas the descriptive survey method of researchtoassessed the level of competencies in the area of clinical work and fieldexpertise of selected medical laboratory personnel in Metro Manila in terms ofResearch, Quality Management Systems, General Laboratory Practices,Communication, Management and Leadership, Professional Ethics, WorkForceTraining, Emergency Management and Response, and Laboratory Safety.\u0000 Based on the result of the self-rated survey,the respondents are “moderately competent” inthe following areas:Research, Communication, WorkForce Training skills, and Laboratory Safety. In response, aproposed health matrix program was created inthese competencyareasthat showeda need for continuing education and training.\u0000 Although the respondents scored “highly competent” in Quality Management System, General Laboratory Practice, Management and Leadership, and Professional Ethics, the researcher still suggests further training in these areas to become more proficient and expert.","PeriodicalId":21568,"journal":{"name":"ScienceOpen Posters","volume":"60 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90121358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0