bluuebunny/crossref_metadata_2025 huggingface dataset:
Remote Work and Employment Dynamics under COVID-19: Evidence from Canada
Authors: Gallacher Guillermo , Hossain Iqbal
Published: May 2020

In this study, we find that 41 percent of jobs in Canada can be performed remotely, with significant variation across provinces, cities, and industries. We complement this finding with labour microdata and document facts on the relationship between the feasibility of remote work and income inequality, gender, age, and other worker characteristics. We then show that, under some of our specifications, workers in occupations for which the possibility of remote work is less likely experienced larger employment losses between March and April. This relationship however does not seem to hold for a different measure of the possibility of remote work or for employment losses across industries with different possibilities of remote work nor across provinces or cities with different possibilities of remote work.
Phenotypic Variation of Peanut Smut (Thecaphora frezii) Incidence and Severity in the U.S. Peanut Mini-Core Collection
Authors: Wann D.Q. , Falco A. , Cavigliasso M. , Cassano C.
Published: May 2020

Peanut smut is an emergent soilborne disease of peanut in South America that has significantly impacted the commercial peanut industry in Argentina. In response, plant breeders are in need of information about potential sources of smut resistance in cultivated germplasm for the rapid development of resistant cultivars. Available U.S. peanut mini-core accessions were evaluated under naturally-infested soil conditions in 2016-2019 near General Cabrera, Córdoba, Argentina, in addition to three susceptible breeding lines and four local commercial controls. Over three years, 18 mini-core accessions and two germplasm collection accessions exhibited no smut incidence in a 100-pod sample. Of those, 12 mini-core accessions and one germplasm collection accession (PI 153323) exhibited no smut incidence when all available pods were opened and examined in the 2016-2017 and 2017-2018 crop years. These 13 accessions were collected from a variety of origins across the Americas, Africa, and Asia; only three were collected from origins in South America. These results suggest that resistance mechanisms may be well-conserved across various groups within Arachis hypogaea L. The 13 identified accessions appear to be sources of resistance to peanut smut in A. hypogaea and would likely be good parent material for the development of new, resistant commercial peanut cultivars.
Attracting University-educated Job Seekers
Authors: Thomson Kyle , Block Nicole , Labrie Camille , Pichert Michaela , Zahr Daniel
Published: May 2020

While a strong demand for university-educated employees exists within the auto sales industry, few graduates give serious consideration to car dealerships as career opportunities. Lexus of Edmonton, a leading luxury car dealership, presented our team with this concern, prompting a three-month marketing research project. This report examines the factors which influence university-educated job seekers’ decisions when searching for employment, and how Lexus of Edmonton can tailor their recruitment strategies to target graduates. Our examination followed a three-phase research design involving a review of 25 academic articles, a qualitative analysis of five in-depth interviews, and a quantitative analysis of 101 questionnaire responses.

In summary, we found that school involvement, internships, and online platforms were effective means of attracting university graduates. We identified business-majors as the audience most interested in a career with Lexus of Edmonton. We also found that corporate social responsibility and organizational culture were major concerns for graduates, with some metrics being considered as highly as salary and compensation. Based on these findings, our team recommends that Lexus of Edmonton expand their ongoing involvement with local universities, leverage their online presence to network with students, and tailor its communications to reflect their commitment to employee wellbeing. Drawing on this report as a case study in recruitment strategies, we hope that other employers and universities may optimize their own processes to better match graduates to career opportunities.
Spreading the Word:
Authors: Cartwright Kelly , Hesthammer Kai , Stener Davin
Published: May 2020

The purpose of this research is to identify ways in which MacEwan’s CDEL Navigating MyCareer Journey program can better reach students and increase enrollment and completion rates. This paper addresses these goals by looking at ways to improve the programs current marketing strategies and the features that effect its overall appeal. First, we researched fifteen scholarly articles regarding career development and student learning preferences. Next, we conducted three in-depth interviews with MacEwan students; one currently enrolled in the program and two not enrolled. After our analysis, we formulated a questionnaire aimed at solving the programs main areas of concern. A total of 126 respondents from the target group completed the survey.

            The research indicates that CDEL should focus its marketing efforts on posters, friends, MyMacEwan website, and Blackboard. It also showed that CDEL should focus on creating awareness through friends, parents, online forums, and professors. Our research indicates that networking skills, career/life opportunities, and developing a career mindset are the most important topics to students and that CDEL should focus on those. Our research also identified that making a comprehensive, for-credit course might be the best way to increase their completion rate. We recommend that CDEL develop these key features of the program and modify the course to make it warrant credits.
Schrodinger Wave Equation
Authors: Davey Aaron C.H.
Published: May 2020

The father of quantum mechanics, Erwin Schrodinger, was one of the most important figures in the development of quantum theory. He is perhaps best known for his contribution of the wave equation, which would later result in his winning of the Nobel Prize for Physics in 1933. The Schrodinger wave equation describes the quantum mechanical behaviour of particles and explores how the Schrodinger wave functions of a system change over time. This project is concerned about exploring the one-dimensional case of the Schrodinger wave equation in a harmonic oscillator system. We will give the solutions, called eigenfunctions, of the equation that satisfy certain conditions. Furthermore, we will show that this happens only for particular values called eigenvalues.
PROKLAMASI MENURUT MOHAMMAD YAMIN: BERDAULAT DAN BERKONSTITUSI
Authors: Asshiddiqie Jimly , Marwan Awaludin
Published: May 2020

Pemikiran Yamin pada masa kemerdekaan memandang proklamasi bukan hanya sebuah teks deklarasi kemerdekaan. Melainkan sebuah simbol filsafat hukum bahwa Indonesia telah merdeka. Dengan kata lain, proklamasi adalah bagian dari sumber hukum yang patut dirujuk dalam sistem ketata-negaraan. Karena proklamasilah yang mengawali sebuah kedaulatan dan inspirasi lahirnya konstitusi dasar.
Children Television Viewing Patterns and Parental Media Literacy in Pakistan
Authors: Zulfiqar Attia , Saleem Noshina , Latif Faiza
Published: May 2020

This study examines the television viewing routines of children in Pakistan. Familial, as well as individual, television viewing patterns were explored. Explanations for the childrens content choice and parental rationales behind allowing free content consumption are listed. Parental media literacy, especially concerning the content rating system, was examined. 2000 Pakistani parents, of varying educational backgrounds, contributed to the survey. Accordingly: 16% of parents allow their children unsupervised television viewing. 86% of children watch for 1 to 3 hours, and 14% watch for 3 to 5 plus hours daily. Preferred childrens programs, at 96% (n= 1915/2000), in Pakistan, are cartoons and animated movies 77% (n=1548/2000). Children are allowed unadulterated viewing for entertainments sake. According to media literacy check, only 46% of parents know of the existence of rating systems. Highly educated parents are better informed, however, both genders are equally ignorant of what is age-appropriate in childrens shows
Impact of Leadership Style on Employees Commitment: Moderating Role of Organization Politics: A Case Study of Public Sector Universities of KPK
Authors: Ali Nasir , Ali Marjan , Sheraz Muhammad
Published: May 2020

The aim of this study is to investigate the relationship between employees commitment and leadership styles along with the moderating role of organizational politics in public sector universities of KPK. The researcher adopted a deductive approach with cross-sectional research design and used a quantitative methodology. Stratified random sampling has been used with an objective to ensure effective representation of the selected population. Responses from the participants were collected through a pre-structured questionnaire, which was then analyzed through the SPSS data analysis tool by using different statistical methods including descriptive statistics analysis, regression analysis, and inter-variables correlation analysis. Findings of the study show that organizational politics positively moderates the relationship of transformational and democratic style of leadership with commitment of employees. It is also provided that the stus findings would serve as a foundation for future researchers to conduct studies on the given topic in the future.
Utjecaj dodatka antioksidanasa na oksidacijsku stabilnost masti jazavca
Authors: Moslavac Tihomir , Konjarević Anastazija , Aladić Krunoslav , Šubarić Drago , Jokić Stela
Published: May 2020

Mast jazavca ima ljekovita svojstva koja proizlaze iz načina ishrane jazavca. Životinjska mast podliježe oksidacijskom kvarenju tijekom proizvodnje, skladištenja i toplinske obrade. U ovom radu istraživan je utjecaj dodatka prirodnih antioksidanasa (ekstrakt ružmarina, ekstrakt kadulje, alfa tokoferol, mješavina tokoferola) i sintetskog antioksidansa propil galata na promjenu oksidacijske stabilnosti masti jazavca. Oksidacijska stabilnost masti jazavca, sa i bez dodanog antioksidansa, ispitivana je primjenom testa održivosti na 98 °C. Rezultati testa prikazani su kao vrijednost peroksidnog broja nakon određenog vremena držanja uzorka pri temperaturi 98 °C. Rezultati istraživanja pokazuju da dodani antioksidansi uspješno stabiliziraju mast jazavca. Od prirodnih antioksidanasa veću antioksidacijsku aktivnost u masti jazavca ima ekstrakt ružmarina tip Oxy’Less CS. Postigao je veću efikasnost zaštite od oksidacije, u odnosu na druge ispitivane antioksidanse. Sintetski antioksidans propil galat uspješno je povećao stabilnost masti jazavca, ali je manje efikasan od ekstrakta ružmarina i mješavine tokoferola.
“He tolerated everything in himself...”: The personality and poetry of V.A. Zhukovsky
Authors: Fedorov Alexey V.
Published: May 2020

The article offers an understanding of the life and creative path of V.A. Zhukovsky, his role in the development of the Russian literature of the first half of the XIX century. The general review of Zhukovsky’s poetic heritage, characteristic of the main genres and literary directions are combined with the analysis of some works that are most important for understanding the creative specificity of the poet. When considering the biography, a wide range of memoir material is involved, journal articles of the time are used; the critics’ statements as well as the modern literary scholars’ observations help to understand more precisely and fully the uniqueness of the place occupied by V.A. Zhukovsky in the Russian literature of the “Golden age”. The general methodological direction of reflections on the phenomenon of Zhukovsky, figuratively expressed in the title (quote from F.I. Tyutchev’s poem “In memory of V.A. Zhukovsky”), can be considered a statement about the harmonious nature of the creative talent of the poet, his high moral qualities and genuine Christian faith, which could not but affect the works, always imbued with the ideal, organically combining the aesthetic perfection and educational value. Opening the poems of Zhukovsky, the first Russian romantic poet, genial translator, mentor of the future Emperor, author of the words of the hymn «God save the Tsar», friend and poetic teacher of Pushkin, educator, guardian genius, we let into our soul the silence and light that gives us strength to resist everyday thunderstorms, reminds us of eternity.
STRUCTURAL MODELS FOR SUSTAINABLE TOURISM DEVELOPMENT IN MEDAN CITY
Authors: Sitepu Edy Sahputra , Rismawati Rismawati , Comala Dewi , Berutu Edi Putra , Haro Jamardua , Edy Rangkuti Agus
Published: May 2020

Medan City is currently designated as one of the 20 national tourism destinations that implement Sustainable Tourism Development (STD) in Indonesia. The commitment to implement STD nationally is marked by the signing of the text of the Memorandum of Understanding (MoU) of 20 Regional Heads who are committed to implementing STD together with the Indonesian Ministry of Tourism. Furthermore, under the supervision of the Republic of Indonesia Ministry of Tourism, 20 existing Regencies / Cities made various improvements in each region so that they were finally eligible for STD certification from the STD international certification body. Medan City itself, through the Medan City Tourism Office, related to the implementation of the STD, has established a number of leading tourism destinations. It is hoped that in the future, Medan City will have tourist destinations that have received STD certification. This research was conducted to formulate a model of implementing sustainable tourism development in Medan with a total sample of 220 people spread over 11 leading tourist destinations in the city of Medan, samples were taken with a purposive random sampling technique. The research variables used include; sustainable management, socio-cultural benefits, economic benefits for the surrounding community, environmental benefits and the application of sustainable tourism. Data analysis was carried out with a structural model of the Structural Equation Model (SEM) with the help of Amos 22 software. The results showed that the management aspects, economic aspects, socio-cultural aspects of environmental aspects, and the impact of tourism, directly and indirectly, have a positive effect on the implementation of sustainable tourism in the city of Medan.
The global helminth belt and Covid-19: the new eosinophilic link
Authors: Rodriguez Carlos
Published: May 2020

This paper expands on our previous report of a striking fact: the low prevalence of the Covid-19 disease in tropical and subtropical areas of the world coincides with the areas of global high prevalence of helminth infestation. In the former paper, we asked if this could be due to a predominant immune phenotype in the populations chronically infected by helminth parasites. We then quoted literature that confirms the high eosinophil counts in the general population of helmint prevalent regions. Now, in this paper, we delve into the different biological mechanisms behind this observation and describe how chronic helminth infection closely correlates with a type of immune phenotype that is characterized by high levels of eosinophils and a stifled inflammatory response. We also argue that this phenotype is the perfect setting to avert both the infection with the Covid-19 virus and the Acute Respiratory Distress Syndrome (ARDS) that is the main cause of death from the disease. In this model, the viral infection would be prevented mainly by the action of the overrepresented eosinophilic cells with strong activity against RNA-virus like the SARS-CoV2. On the other hand, the basal low immune reactivity, as present in chronic helminth infected people, would make very unlikely the cytokine storm that is at the core of the development of ARDS. Our main hypothesis therefore is that chronic helminth infection, and the immune consequences thereof, is the main reason why the Covid-19 pandemic have a relatively much lower presence in the millenarian global helmith belt than in the modern urban "dewormed" world. 
This model has important implications to 1) the way we deal with the pandemic in the countries of the helminth belt and 2) to design or repurpose drugs that promote the activation of the Th2 immune system and the eosinophils thereof.
Elecciones generales de junio 1993
Authors: Redacción Consejo de
Published: May 2020

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El ojo del enfermero
Authors: Rodero Franganillo Antonio
Published: May 2020

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Universidad y sociedad en España: ¿El final de un ciclo?
Authors: Cubero Salmerón José Ignacio
Published: May 2020

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"Código de conducta empresarial" (Recensión)
Authors: Camacho Laraña Ildefonso
Published: May 2020

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Urban Fertilizer Ordinances in the Context of Environmental Horticulture and Water Quality Extension Programs: Frequently Asked Questions
Authors: Dukes Michael , Krimsky Lisa , Lusk Mary , Trenholm Laurie E , Unruh Joseph B , Atkinson Michelle , Mylavarapu Rao , Warwick Caroline R
Published: May 2020

Excess nitrogen (N) and phosphorus (P) in water bodies are a leading cause of water quality degradation statewide. More than 50 Florida counties and municipalities now have formal fertilizer ordinances, which in some cases include fertilizer blackouts, or bans on the usage of N and P fertilizers during certain times of the year. This 8-page document provides information on the underlying issues of fertilizer use, with an emphasis on an urban setting, and outlines the current state of the science on urban fertilizers and water quality in Florida. Written by Michael D. Dukes, Lisa Krimsky, Mary Lusk, Laurie Trenholm, Bryan Unruh, Michelle Atkinson, and Rao Mylavarapu, and published by the UF/IFAS Department of Agricultural and Biological Engineering, February 2020. https://edis.ifas.ufl.edu/ae534
Ocean Acidification: Calcifying Marine Organisms
Authors: Henry Joseph , Patterson Joshua , Krimsky Lisa
Published: May 2020

Rising atmospheric carbon dioxide (CO2) concentration leading to ocean acidification is a threat to marine ecosystems and organisms. As atmospheric CO2 rises, CO2 is driven into the ocean. When CO2 combines with seawater it makes carbonic acid. Carbonic acid then breaks down to form a hydrogen ion and a bicarbonate ion. Excess hydrogen ions building up over time result in decreased seawater pH. Furthermore, the excess hydrogen ions combine with carbonate ions in the water, resulting in fewer available carbonate ions for marine calcifiers. These carbonate ions are an essential element for marine calcifiers and their decreased availability is of increasing concern. The overall change in pH and available carbonate ions has been shown to have direct impacts on physiology, behavior, and calcification rates of marine organisms. Coastal Florida boasts an abundance and diversity of calcifying organisms that stand to be impacted by the altered carbonate chemistry resulting from increased atmospheric CO2 levels. This publication will focus on the impacts of ocean acidification on Calcification. Specifically focusing on how calcification in corals, bivalves, echinoderms and planktonic organisms are being impacte.
Vegetarianismo y adultos mayores
Authors: Johnston Kelly , Dahl Wendy , Mendoza Daniela Rivero
Published: May 2020

Las dietas basadas en plantas se recomiendan para reducir el riesgo de enfermedades crónicas. Una dieta vegetariana es una dieta basada en plantas compuesta de vegetales, frutas, granos integrales, legumbres, nueces y semillas, con o sin alimentos a base de lácteos y huevos. Si se excluyen todos los alimentos de origen animal, se considera una dieta vegana. Las dietas vegetarianas y veganas bien planificadas pueden mejorar la salud durante todas las etapas de la vida, incluida la edad adulta. Sin embargo, cuando se sigue una dieta vegetariana como adulto mayor, se debe prestar especial atención a los cambios en las necesidades nutricionales relacionadas con la edad.This new 4-page article is a translation of FSHN19-1/FS317, Vegetarianism and the Older Adult. Written by Kelly Johnston and Wendy J. Dahl, translated by Daniela Rivero Mendoza, and published by the UF/IFAS Food Science and Human Nutrition Department.
Evaluation of Lettuce Cultivars for Production on Muck Soils in Southern Florida
Authors: Sandoya German , Lu Huangjun
Published: May 2020

Lettuce as a commercial crop is planted mainly in organic soils ("muck") in the Everglades Agricultural Area (EAA) in south Florida. This updated publication of the UF/IFAS Horticultural Sciences Department presents a summary of previous cultivar releases by UF/IFAS as well as a description of cultivars currently planted in the EAA. Written by German Sandoya and Huangjun Lu.https://edis.ifas.ufl.edu/hs1225
Nutrition and Fertilization Practices for Southern Highbush Blueberry in Florida
Authors: Phillips Doug , Williamson Jeffrey G.
Published: May 2020

Research and field experience have demonstrated that fertilization is necessary to achieve proper growth and high yields in cultivated production of blueberries. This new 7-page publication of the UF/IFAS Horticultural Sciences Department provides guidance and management suggestions to Florida growers of southern highbush blueberry (SHB) for monitoring, supplying, and maintaining proper plant nutrition in commercial production operations. Written by Doug Phillips and Jeffrey G. Williamson. https://edis.ifas.ufl.edu/hs1356
Using Supplemental Lighting to Control Flowering of Hops in Florida
Authors: Agehara Shinsuke
Published: May 2020

Hops (Humulus lupulus L.) are an emerging crop in Florida. Florida’s craft beer industry has experienced significant growth over the last 10 years, with 285 breweries producing 42.6 million gallons of beer and generating an economic impact of $3.6 billion in 2018. To respond to their strong demand for locally grown hops, an interdisciplinary hops research team is currently studying optimum crop management practices at the UF/IFAS Gulf Coast Research and Education Center (UF/IFAS GCREC). In Florida, the major yield-limiting factor is premature flowering induced by inadequate day length. This new 4-page article, written by Shinsuke Agehara and published by the UF/IFAS Horticultural Sciences Department, provides guidelines for supplemental lighting to control flowering of hops in Florida.
Giant Resin Bee Megachile sculpturalis (Smith) (Insecta: Hymenoptera: Megachilidae)
Authors: Stevens Kristen C. , Jack Cameron , Ellis James D
Published: May 2020

Originally from eastern Asia, the giant resin bee, Megachile sculpturalis (Smith), was accidentally introduced into the United States in the 1990s. It is considered an adventive (not native and usually not established) species and is present in most states in the eastern US. Although these bees can be found on various plants, they typically prefer plants that have been introduced from their native area. Some have observed that when collecting pollen or nectar, Megachile sculpturalis will damage local flora, making it unusable to future bee visitors. However, evidence has shown that, although an adventive species, Megachile sculpturalis is thought to be a pollinator of a native and federally threatened plant, the Apios Pricenana.https://edis.ifas.ufl.edu/in1258

Also available on the Featured Creatures website: http://entnemdept.ufl.edu/creatures/MISC/BEES/Giant_resin.html
Identification and Treatment of European Foulbrood in Honey Bee Colonies
Authors: Mueller Catherine M. , Jack Cameron , Mortensen Ashley N. , Ellis Jamie D.
Published: May 2020

European foulbrood is a bacterial disease that affects Western honey bee larvae. It is a concern to beekeepers everywhere, though it is less serious than American foulbrood because it does not form spores, which means that it can be treated. This 7-page fact sheet written by Catherine M. Mueller, Cameron J. Jack, Ashley N. Mortensen, and Jamie Ellis and published by the UF/IFAS Entomology and Nematology Department describes the disease and explains how to identify it to help beekeepers manage their colonies effectively and prevent the spread of both American and European foulbrood.https://edis.ifas.ufl.edu/in1272
Macrocybe titans: The Mushroom Giant of the Western Hemisphere
Authors: Karlsen-Ayala Elena , Smith Matthew Edward
Published: May 2020

The aptly named Macrocybe titans, meaning "giant head," is the largest known gilled mushroom in the Western Hemisphere. This species was originally described from Florida but can be found across the southeastern United States as well as the Caribbean, Central America, and parts of South America. These mushrooms are often found in clusters with the caps growing as large as 3 ft wide and 1–1.5 ft tall! This species was first discovered in Gainesville, Florida, and is generally found near buildings or roads. This new three-page publication of the UF/IFAS Plant Pathology Department describes these giant mushrooms, their discovery, and where to find them. Written by Elena Karlsen-Ayala and Matthew E. Smith.
https://edis.ifas.ufl.edu/pp356
Nutrition of Florida Citrus Trees, 3rd Edition: Chapter 9. Irrigation Management to Improve Nutrient Uptake
Authors: Morgan Kelly T. , Obreza Thomas A. , Kadyampakeni Davie , Hamido Said , Ferrarezi Rhuanito Soranz , Zekri Mongi
Published: May 2020

The information provided in the 2008 2nd edition is still sound for healthy citrus trees under Florida production conditions. Much of the information provided in this document on nutrients, application methods, leaf and soil sampling and irrigation scheduling are also effective for huanglongbing (HLB) affected citrus trees. However, research conducted since HLB was detected in Florida in 2005 has established changes in many production practices, including nutrient rates, irrigation scheduling, soil pH management, and use of Citrus Under Protective Screen (CUPS). Changes to the 2nd edition of SL253 will appear in boxes similar to this one at the beginnings of chapters 2, 6, 8, 9, and 11.
An Overview of Key Soil Nitrogen Cycling Transformations
Authors: Nevins Clayton J , Strauss Sarah L , Inglett Patrick
Published: May 2020

Although nitrogen (N) is one of the most abundant elements in the biosphere, it is generally at levels that are limiting for optimum plant growth and crop production in Florida soils. To maintain adequate N levels in Florida soils without having detrimental environmental side effects, one must understand and manage N cycling transformations and processes. This new 5-page article, published by the UF/IFAS Department of Soil and Water Sciences, provides an overview of the N cycle by describing key N transformations that result in soils gaining or losing N. The biotic and abiotic processes that govern these transformations are described, as well as practical examples of these transformations in Florida soils. Written by Clayton J. Nevins, Sarah L. Strauss, and Patrick Inglett.https://edis.ifas.ufl.edu/ss684
Exemplary Youth Leadership Series: Inspire a Shared Vision
Authors: Stein Megan
Published: May 2020

This publication series is designed to outline strategies and experiences to expose youth to and engage them with leadership concepts. In this series, activities have been developed to introduce youth to Kouzes and Posner’s five practices of exemplary leaders. This new 2-page article allows students to engage with the second practice: inspiring a shared vision. Leaders shape the trajectory of their organization. The two outlined activities help students illustrate the idea of creating a unique vision and recruiting others to follow that vision. Written by Megan Stein and published by the UF/IFAS Department of Agricultural Education and Communication.https://edis.ifas.ufl.edu/wc348
Exemplary Youth Leadership Series: Challenge the Process
Authors: Stein Megan
Published: May 2020

This publication series is designed to outline strategies and experiences to expose and engage youth with leadership concepts. In this publication, students will try on aspects of the third practice of exemplary leaders: challenge the process (Kouzes & Posner, 2018). Two low-cost, quick activities are included for implementation with youth and adults working with youth. These activities are best suited for students ages 10–18. However, modifications are included for each of the activities to allow for different group sizes, ages, and abilities of the youth involved.
Navigating the Unprecedented: Working Remotely Unexpectedly
Authors: Sowcik Matt , Stein Megan
Published: May 2020

Working from an alternative location can be a daunting adjustment. Ensuring personal well-being and productivity through unexpected times takes a proactive partnership between employers and employees. This new 3-page publication of the UF/IFAS Department of Agricultural Education and Communication provides some best practices for personal well-being and productivity while working remotely. Written by Megan Stein and Matthew Sowcik.

https://edis.ifas.ufl.edu/wc355
Numerical investigation of the thermal-caloric imperfections on entropy enhancement across normal shock waves
Authors: SALHI MEROUANE
Published: May 2020

Changes in flow properties across a normal shock wave are calculated for a real gas, thus giving us a better affinity to the real behavior of the waves. The purpose of this work is to develop shock-wave theory under the gaseous imperfections. Expressions are developed for analyzing the supersonic flow of such a thermally and calorically imperfect gas. The effects of molecular size and intermolecular attraction forces are used to correct a state equation, focusing on determination of the impact of upstream stagnation parameters on a normal shock wave. Flow through a shock wave in air is investigated to find a general form for normal shock waves. At Mach numbers greater than 2.0, the temperature rise is considerably below, and hence the density rise is well above, that predicted assuming ideal gas behavior. It is shown that caloric imperfections in air have an appreciable effect on the parameters developed in the processes considered. Computation of errors between the present model based on real gas theory and a perfect gas model shows that the influence of the thermal and caloric imperfections associated with a real gas is important.
Cognition & Evolution
Authors: Jiang Haiyu
Published: May 2020

In this paper, I examine one of Nagel’s arguments against evolutionary theory, that the evolutionary conception of nature is incompatible with our understanding of cognition. I reconstruct Nagel’s two charges that the evolutionary conception of nature is at odds with our ability to acquire objective knowledge of the external world and that evolutionary theory is insufficient to explain logic’s absolute reliability. I reply to the first charge by suggesting that we should understand our ability to logically reason as a by-product instead of a direct product of the evolutionary processes. Then I reply to the second charge by denying that logic’s reliability is an appropriate subject of inquiry the evolutionary theory.
A Pragmatic Look at Schopenhauer's Pessimism
Authors: Parker Allison
Published: May 2020

Schopenhauer’s pessimistic philosophy is a depressing read. He writes many pages about how suffering is the norm, and any happiness we feel is merely a temporary alleviation of suffering. Even so, his account of suffering rings true to many readers. What are we to do with our lives if Schopenhauer is right, and we are doomed to suffer? In this paper, I use William James’ pragmatic method to find practical implications of Schopenhauer’s pessimism. I provide a model for how we are to live our lives in a suffering world, a model that provides means to reduce suffering.
The Ethical Implications of The Intentional Fallacy
Authors: Sparacino Rosanna
Published: May 2020

I argue that biographical information is akin to other non-aesthetic, social, historical, or political information. As such, artist’s biographies are always relevant and important when interpreting art. While the meaning and value of a piece of art is not determined by any single piece of contextual information, neither is its meaning and value ever entirely separated from context. In some cases, however, a piece of art that is technically magnificent may be experienced as repugnant when the artist has committed egregious acts.
The Fires of Change
Authors: Cooper Holly
Published: May 2020

In this paper, I explore a prominent question of Hericlitean scholarship: how is change possible? Karl Popper and G. S. Kirk tackle this same question. Kirk asserts that Heraclitus believed that change is present on a macrocosmic level and that all change is regulated by the cosmic principle logos. Popper, on the other hand, claims Heraclitus believed that change is microcosmic and rejected that all change is regulated by logos. I argue for a combination of aspects from each of their claims and conclude that change is present both microcosmically and macrocosmically and that all change is governed by logos.
The Skeptic's Language Game
Authors: Shaffer Kyle
Published: May 2020

This paper seeks to critique Pyrrhonean skepticism by way of language analysis. Linguistic aspects of Pyrrhonism are first examined utilizing the later writing of Wittgenstein. Pyrrhonean languageuse is then critiqued using H.P. Grice’s concept of implicature to demonstrate shared knowledge between speakers. Finally, a teleological model of communication is sketched using ideas from Jerry Fodor. If the Pyrrhonist denies speaking to communicate mental states, we are justified in questioning why we should listen to what she says.
A Multi-Causal Approach To Synchronicity
Authors: Stinson Zachary
Published: May 2020

Synchronicity has long been described as an ‘acausal’ connecting principle. However, the use of this descriptor is not only misleading, but also outright false on any seriously considered picture of synchronicity due to admissions of multiple types of causes. Furthermore, previous attempts to clarify the ‘acausal’ label have served only to further muddy the waters of discussion. A ‘multi-causal’ conception of synchronicity is proposed to ease and encourage future discussion in many disciplines.
Descriptions of Scientific Revolutions
Authors: Cavagnini Kyle
Published: May 2020

The twentieth century saw extended development in the philosophy of science to incorporate contemporary expansions of scientific theory and investigation. Richard Rorty was a prominent and rather controversial thinker who maintained that all progress, from social change to scientific inquiry, was achieved through the redescription of existing vocabularies. However, this theory fails to describe revolutionary scientific progress. Thomas Kuhn’s theories of paradigm change, as first described in his seminal work The Structure of Scientific Revolutions, better portray this process. I attempt to show this by applying Kuhn’s and Rorty’s views to examples of scientific progress and comparing the results.
Finite in Infinity
Authors: Laurens Hannah
Published: May 2020

One of the main themes in Spinoza’s Ethics is the issue of human freedom: What does it consist in and how may it be attained? Spinoza’s ethical views crucially depend on his metaphysical theory, and this close connection provides the answer to several central questions concerning Spinoza’s conception of human freedom. Firstly, how can we accommodate human freedom within Spinoza’s necessitarianism—in the context of which Spinoza rejects the notion of a free will? Secondly, how can humans, as merely finite beings, genuinely attain freedom? Can Spinoza defend his claim that we may even attain blessedness? I will argue that these questions are answered by appeal to a twofold in human nature. According to Spinoza, we are finite in infinity.
Fatalism and Truth at a Time
Authors: Marxen Chad
Published: May 2020

In this paper, I will examine an argument for fatalism. I will offer a formalized version of the argument and analyze one of the argument’s most controversial assumptions. Then, I will argue that one ought to reject the assumption that propositions about the future are true facts of the past, even if no one makes reference to such propositions.
Instrumentalism and Poetic Thinking
Authors: McGinn Mark
Published: May 2020

This paper offers a critique of the instrumental logic of thought found in the middle period of Dewey’s philosophy. His instrumentalism requires that thought serves to effect a physical alteration in the conditions of experience through an experimental act, the results of which retrospectively determine the legitimacy of thought. But missing from his account, I argue, is an explanation of the significant alteration of experience brought about by more aesthetic forms of philosophical thinking, which do not aim to effect any kind of physical alteration. I therefore propose that “poetic thinking” be invoked as a necessary supplement to instrumental thinking.
Climate Ethics
Authors: Chi Vesak
Published: May 2020

Anthropogenic climate change (ACC) has been described as a tragedy of the commons (T of C) by Baylor Johnson. Johnson argues that solutions to T of C scenarios reside in collective action rather than individual action, and that our moral obligation is to advocate for collective solutions to ACC. Marion Hourdequin argues that individual action can serve to promote collective action and in doing so it can also serve as an ethical obligation. I contend that individual action holds intrinsic value in lieu of its ability to counteract our susceptibility to the kind of moral corruption espoused by Stephen Gardiner.
An Existentialist Critique of Punishment
Authors: Logan Nicholas
Published: May 2020

In this paper, I provide an account of the way in which practices of punitive justice in the United States permanently foreclose the possibility of an open future for the punished. I argue that participation in a system where those forms of punishment are utilized is an act of bad faith because it involves the denial of the existential freedom of others as well as our own. Using Hannah Arendt’s account of Adolf Eichmann I show how such acts of bad faith are both natural modes of thought as well as inherently dangerous. Finally, I demonstrate that existentialism provides us with the ability to recreate our relationship to others and resist acts of bad faith, especially when it comes to crime and punishment.
Feminist Critique of Joseph Stiglitz’s Approach to the Problems of Global Capitalism
Authors: Blake Jenna
Published: May 2020

In his book Making Globalization Work, Joseph Stiglitz proposes reforms to address problems arising from the global spread of capitalism, problems that he asserts are not inherent to globalization or capitalism but are due to the way those systems have been “managed.” Conversely, postcolonial feminist theorist Chanda Talpade Mohanty’s analysis of those same systems demonstrates that capitalism is not compatible with global justice. In this essay I use Mohanty’s analysis to argue that Stiglitz’s proposed reforms would not achieve his stated goals and that the global capitalist system must be dismantled if global justice is to be achieved.
Nietzsche and the Prince
Authors: Ferguson Ian
Published: May 2020

The main character of Fyodor Dostoyevsky’s novel The Idiot is a devout Orthodox Christian named Prince Myshkin. Friedrich Nietzsche, who is intensely critical of Christianity, and Myshkin share the same views on shame and pity despite their apparent ideological differences. They condemn the damaging effects of shame and praise the redeeming quality of pity for people who are put to shame. Nietzsche and Myshkin criticize the moral aspect of Christianity, but Nietzsche generalizes it for all of Christianity and Myshkin limits it to the Catholic Church. In the end, they both advocate a philosophy of love for humanity.
Multilateral Retributivism
Authors: Eva Richard R.
Published: May 2020

In this paper I argue for a theory of punishment I call Multilateral Retributivism. Typically retributive notions of justice are unilateral: focused on one person’s desert. I argue that our notions of desert are multilateral: multiple people are owed when a moral crime is committed. I argue that the purpose of punishment is communication with the end-goal of reconciling the offender to society. This leads me to conclude that the death penalty and life without parole are unjustified because they necessarily cut communication short.
KARAKTERISTIK FRUIT LEATHER DENGAN VARIASI RASIO BUAH NAGA MERAH (Hylocereus polyrhizus) – PEPAYA (Carica papaya L.) DAN SUHU PENGERINGAN
Authors: Yannie Asrie Widanti Fikha Andita Puspitasari, Merkuria Karyantina &
Published: May 2020

Buah naga merah merupakan buah tropis yang kaya akan antioksidan, namun kurang disukai karenarasanya yang tidak begitu manis. Buah naga merah juga sangat mudah mengalami kerusakan karenakandungan kadar air yang tinggi. Fruit leather adalah jenis olahan produk makanan yang berasal dari buburdaging buah yang dikeringkan sampai kadar air berkisar 10-15%. Pembuatan fruit leather memerlukan buahyang memiliki kandungan serat yang tinggi. Tujuan dari penelitian ini adalah untuk mengetahui karakteristikfruit leather dengan perbandingan buah naga merah dan pepaya serta mengkaji suhu pengeringan yangtepat untuk mendapatkan karakteristik fruit leather yang baik.Perlakuan yang diberikan meliputi perbandingan buah pepaya: naga merah, yaitu 20:80, 30:70,dan 40:60. Perlakuan yang kedua adalah suhu pengeringan, yaitu 140, 150, dan 1600C. Hasil penelitianmenunjukkan bahwa perbandingan buah naga merah - pepaya dan suhu pengeringan berpengaruh nyataterhadap karateristik kimia dan organoleptik fruit leather. Berdasarkan tujuan penelitian diperoleh fruitleather terbaik pada perlakuan perbandingan daging buah pepaya:daging buah naga (20:80) dan suhupengeringan 1400C. Fruit leather yang dihasilkan memiliki kadar air 14,41%, kadar abu 2,91%, kadar gula total48,91%, kadar vitamin C 25,24 mg/100, dan derajat keasaman (pH) 4,83. Uji sensori yang didapatkan padaperlakuan tersebut adalah warna orange kemerahan dengan nilai 3,51, rasa tidak begitu manis dengan nilai3,71, tekstur agak kenyal dengan nilai 2,93, kesukaan keseluruhan sangat suka dengan nilai 3,67.Kata kunci: buah naga merah, pepaya, fruit leather, suhu pengeringan.
KARAKTERISTIK KIMIA DAN ORGANOLEPTIK PERMEN JELLY LABU SIAM (Sechium edule (Jac.q) Sw.) DENGAN VARIASI KONSENTRASI AGAR-GELATIN
Authors: Yustina Wuri Wulandari Bambang Setyawan, Akhmad Mustofa &
Published: May 2020

Labu siam mengandung mineral, sedikit gula dan air. Selain itu labu siam juga mengandung zatantioksidan seperti flavanoid dan vitamin C yang baik untuk menangkal radikal bebas dan mencegahkanker. Tekstur permen jelly sangat tergantung pada bahan pembentuk gel serta komponennya. Penelitianini bertujuan untuk mengetahui formulasi terbaik antara konsentrasi ekstrak labu siam, variasi agar-gelatinyang menghasilkan permen jelly dengan aktivitas antioksidan yang tinggi serta kadar gula yang rendah dandisukai konsumen.Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) faktorial dengan dua faktor. Faktor 1adalah ekstrak labu siam 5, 10, dan 15g serta faktor 2 adalah variasi agar-gelatin 2,5g+37,5g, 5g+35g, 7,5g+32,5g.Hasil penelitian menunjukkan bahwa perlakuan terbaik adalah perlakuan ekstrak labu siam 15g dan variasiagar-gelatin 7,5g+32,5g yang menghasilkan permen jelly dengan kadar air 18,6%, kadar abu 2,76% kadargula reduksi 0,55% dan aktivitas antioksidan 8,64%, warna kuning muda (2,06), rasa manis (2,26), tingkatkekenyalan (1,66), dan disukai (2,46).Kata kunci : Labu siam, agar, gelatin, permen jelly.
FORMULASI SIRUP HERBAL DAUN KELOR (Morringa oleifera) DENGAN EKSTRAK BUNGA ROSELLA (Hibiscus sabdariffa L.)
Authors: Yannie Asrie Widanti Alfonsus Airnando Bahtiam Ananta, Merkuria Karyantia &
Published: May 2020

Sirup termasuk minuman instan yang memiliki rasa dan aroma tertentu. Beberapa tanaman dapatdimanfaatkan sebagai bahan baku untuk formulasi sirup herbal antara lain daun kelor dan bunga rosella.Sirup daun kelor dan bunga rosella merupakan salah satu potensi sirup herbal dengan kandungan aktivitasantioksidan yang mudah dikonsumsi dan baik bagi kesehatan. Penelitian ini bertujuan untuk menentukanformulasi sirup herbal daun kelor dengan ekstrak bunga rosella sebagai minuman kesehatan bagi konsumendengan aktivitas antioksidan yang tinggi. Penelitian dilakukan dengan Rancangan Acak Lengkap (RAL)faktorial yang terdiri dari 2 faktor. Faktor pertama yaitu daun kelor (5, 10, 15 g) sedangkan faktor keduaekstrak bunga rosella (5, 10, 15 g). Hasil penelitian menunjukkan bahwa kombinasi perlakuan konsentrasidaun kelor : bunga rosella 15:15 merupakan perlakuan terbaik didasarkan pada aktivitas antioksidan dan ujiorganoleptik terbaik yang terdapat pada sirup. Karakteristik sirup adalah pH 3,82, vitamin C 20,40 mg/100ml, total padatan terlarut 41,33%, aktivitas antioksidan DPPH 48,97%, gula total 13,82%, serta uji organoleptikterhadap warna 1,80 (merah muda), flavor kelor 2,56 (terasa kelor), flavor rosella 1,89 (terasa rosella), rasaasam 1,87 (terasa asam) dan kesukaan keseluruhan 1,72 (cukup disukai).Kata kunci: Formulasi sirup, daun kelor, rosella
KARAKTERISTIK KUE PUTRI SALJU MODIFIKASI TEPUNG KACANG KEDELAI (Glycine max (L) (Merr) DAN TEPUNG BERAS MERAH (Oryza nivara)
Authors: Nanik Suhartatik Linda Florenta, Yannie Asrie Widanti &
Published: May 2020

Beras merah merupakan satu produk hasil pertanian yang menyehatkan karena banyak mengandungzat-zat gizi antara lain: mangan, magnesium, serat, dan mempunyai banyak manfaat seperti menghindaridiabetes, mencegah penyakit jantung, menurunkan kolesterol, dan meningkatkan HDL Penelitian inimenggunakan metode rancangan acak lengkap (RAL) dengan dua faktor yaitu rasio tepung beras merah,tepung mokaf, dan tepung kacang kedelai (3:4:3), (4:4:2), dan (5:4:1) dan penambahan jenis kacang tanah,kacang mete, dan kacang almond. Hasil penelitian menunjukkan bahwa kombinasi perlakuan rasio tepungberas merah, tepung mokaf, dan tepung kacang kedelai (4:4:2) dan penambahan kacang mete 250 grammenghasilkan kue kering putri salju terbaik dengan kadar air 5,11%, kadar abu 2,08% kadar protein 6,47%kadar lemak 25,56% gula total 2,81%; dan volume pengembangan 28,08%.Kata kunci: Kue putri salju, substitusi, tepung beras merah, tepung kacang kedelai