bluuebunny/crossref_metadata_2025 huggingface dataset:
The construction of innovative computer practical training education model in the environment of multiple intelligences Internet of Things
Authors: Bao Yanli
Published: May 2021

This paper takes the application of workflow technology in a multi-smart IOT message-driven practical training execution system as the research background, analyzes the current situation and problems of the practical training execution system, and reconstructs and optimizes the original on-site practical training model and business methods according to the future development needs of the practical training execution system. This study draws on the theoretical perspective of the computer knowledge body to deeply recognize and understand the connotation of computing ability from the levels of knowledge, skills, and attitude, forms a basic understanding of computing ability through literature combing, and refines the core elements of computing ability through a combination of enterprise case study, content analysis, and questionnaire survey, strives to form a more systematic and in-depth understanding of the connotation and elements of computing ability. It also provides a reference for the clarification of computing ability training objectives of computer science teachers under the trend of intelligence. Facing the enhancement of computing ability of engineering students majoring in computer science at the undergraduate level, the objectives of computing ability cultivation are clarified, the key points of computing ability cultivation mode are refined from three levels: curriculum design, teaching operation, management, and control, and three typical computing ability cultivation modes embedded in undergraduate computer education are constructed: knowledge module combination mode, computing context experience mode, and intelligent industry-leading mode. The operational strategies and implementation paths of the models are discussed in depth. This study emphasizes that, based on the analysis of the characteristics of the trend of intelligence, the computing ability cultivation model is not static.
Design and implementation of decentralized E-commerce model based on edge computing
Authors: Chen Xianhui
Published: May 2021

This paper adopts the decentralized model of e-commerce model through edge computing for in-depth analysis and discussion, and designs and implements the decentralized e-commerce model. Based on the background of the e-commerce environment formed by the development and application of Internet technology, the research starts from the core role of innovation management in business model innovation; based on analyzing the mechanism and path of business model innovation, the research is conducted and theoretical support is provided for business model innovation management, aiming to provide practical and feasible operational solutions for commercial enterprises to adapt to the development of e-commerce and carry out business model innovation. Based on clarifying the idea and composition of the evaluation of business model innovation capability of commercial enterprises based on e-commerce environment, the paper analyzes and constructs the evaluation index system of business model innovation capability of commercial enterprises, and proposes the evaluation method based on gray theory and fuzzy evaluation theory.
Robotic arm dynamics modelling and robust control based on model recognition method
Authors: Ge Yi , Zhang Jing
Published: May 2021

This paper analyzes the dynamics modelling and robust control of the robotic arm by using a model-based defines method. Firstly, the motion coupling relationship between the front and rear joints of the robotic arm is analyzed, and two kinds of motion decoupling modules based on planetary gear and pulley system are proposed, and the decoupling principle of the motion decoupling module is analyzed to realize the mechanical decoupling of the joint motion of the robotic arm. After that, a comprehensive test bench of two-degree-of-freedom robotic arm joint motion is constructed, and the factors influencing the decoupling effect of the mechanical decoupling module are analyzed through experiments to verify the effectiveness of the motion decoupling module. At the same time, the analysis also shows that: with the increase of the number of robotic arm joints, the number and volume of required decoupling modules increase, and the application of decoupling modules will significantly increase the volume, weight, and torque loss of the robotic arm, thus leading to the robotic arm’s large load to weight ratio which is not an advantage, therefore, mechanical decoupling is not suitable for robotic arms with more than 3 degrees of freedom. The design of a fuzzy incremental controller based on the model dialectic method is proposed for application in parallel robot control; it has universal approximation characteristics and can self-organize the velocity and position information of the parallel robot legs, and dynamically adjust the output of the controller by the designed affiliation function and control rules.
Streblus asper Lour. exerts MAPK and SKN-1 mediated anti-aging, anti-photoaging activities and imparts neuroprotection by ameliorating Aβ in Caenorhabditis elegans
Authors: Prasanth Mani Iyer , Brimson James Michael , Sheeja Malar Dicson , Prasansuklab Anchalee , Tencomnao Tewin
Published: May 2021

BACKGROUND:

Streblus asper Lour., has been reported to have anti-aging and neuroprotective efficacies in vitro.

OBJECTIVE:

To analyze the anti-aging, anti-photoaging and neuroprotective efficacies of S. asper in Caenorhabditis elegans.

METHODS:

C. elegans (wild type and gene specific mutants) were treated with S. asper extract and analyzed for lifespan and other health benefits through physiological assays, fluorescence microscopy, qPCR and Western blot.

RESULTS:

The plant extract was found to increase the lifespan, reduce the accumulation of lipofuscin and modulate the expression of candidate genes. It could extend the lifespan of both daf-16 and daf-2 mutants whereas the pmk-1 mutant showed no effect. The activation of skn-1 was observed in skn-1::GFP transgenic strain and in qPCR expression. Further, the extract can extend the lifespan of UV-A exposed nematodes along with reducing ROS levels. Additionally, the extract also extends lifespan and reduces paralysis in Aβ transgenic strain, apart from reducing Aβ expression.

CONCLUSIONS:

S. asper was able to extend the lifespan and healthspan of C. elegans which was independent of DAF-16 pathway but dependent on SKN-1 and MAPK which could play a vital role in eliciting the anti-aging, anti-photoaging and neuroprotective effects, as the extract could impart oxidative stress resistance and neuroprotection.
Functional outcomes following inpatient rehabilitation of Guillain-Barré syndrome patients: Intravenous immunoglobulins versus plasma exchange
Authors: Bondi Moshe , Engel-Haber Einat , Wolff Julie , Grosman-Rimon Liza , Bloch Ayala , Zeilig Gabi
Published: May 2021

BACKGROUND: Treatment with either Intravenous immunoglobulin (IVIg) or plasma exchange (PE) in patients with Guillain-Barré Syndrome (GBS) showed equivalent efficacy as attested by a commonly used disability scale. However, it has been suggested that this scale may not be sensitive enough to detect subtle functional changes between the two treatments since it mainly focuses on walking capability and respiratory function. OBJECTIVE: To evaluate functional outcomes following treatment with IVIg or PE using comprehensive scales that incorporate parameters of basic activities of daily living. METHODS: A retrospective cohort study was conducted between 2007 and 2013 in an inpatient neurologic rehabilitation department. The study group included 70 individuals with GBS: 39 were treated with PE and 31 with IVIg. A comparison of functional outcomes was performed using Functional Independence Measure (FIM), rehabilitation efficiency (REy), rehabilitation effectiveness (REs), and the GBS disability scale (GDS). RESULTS: Both treatments had a comparable effect on the various functional outcomes. Patients showed a significant increase in total FIM scores (30 points on average) during rehabilitation mainly as a result of an increase in motor sub-scores. A mean improvement of 1.23 (SD 0.9) in GDS was also observed. On average, individuals with GBS spent 20 days combined in the acute departments and 61 days in the rehabilitation department, with length of stay being similar for both treatments. CONCLUSIONS: IVIg and PE treatments have similar basic activities of daily living (ADL) functional outcomes. Nevertheless, due to the different mechanism of actions of these treatments and the multitude of GBS variants, it is possible that further comprehensive assessment tools may demonstrate differences in activity and participation of individuals with GBS.
ASPECTS OF BIM-MANAGER TRAINING
Authors: Levchenko Oleksii , Mykhailenko Andrii
Published: May 2021

The article demonstrates the timeliness of the emergence in Ukraine of new positions for higher / intermediate BIM qualification specialists at modern architectural offices and construction companies during design, construction, and operational stages of an architectural object. Attention is focused on the legislative framework for the development of interrelated (architectural and construction) specialties in Ukraine. At the same time, a shortage of personnel with deep knowledge of BIM technologies is noted.

Development of specialized courses and curricula for training and integration of professional BIM managers in the design and development business throughout the country is encouraged. The hierarchy of the main responsibilities and functions of BIM managers determines the list of tasks and the direction of their professional activities. Engaging specialists from real design, leading specialized institutions, educational and experimental centers for the formation of an in-depth specialized training course for top-level specialists is proposed. For the preparation of BIM managers, the concept of a training program for senior years of a specialized university, a refresher courses or other postgraduate trainings in licensed training centers has been proposed. It includes training in project administration, setting up collaboration, an interdisciplinary system, checking the model’s quality, effective organization of BIM processes themselves and within a company, as a whole. A system of organizational, technical, methodological, software and other means of ensuring the educational process is considered. The stages and specifics of professional staff development, as well as preparation for the subsequent BIM certification, have been specified.
STAGES DEVELOPMENT OF URBAN CONSTRUCTION SYSTEMS: RETROSPECTIVE ANALYSIS AND TRENDS
Authors: Viatkin Konstantyn
Published: May 2021

The article is devoted to the analysis of the historical development of the basic principles of urban planning: from the stage of development of primary cities to modern approaches to the formation of a comfortable urbanized space. Each stage of civilizational development, with its own task of practically ensuring the life of a person with various social and social needs, influences the formation of the human environment - an urbanized space with a set of functional characteristics that can satisfy the population at a certain technological, socio-economic and social levels of development. Each subsequent stage in the development of urban planning systems accumulates the advanced achievements of the previous stages and is characterized by the search for ways to meet the new needs of the population, formed as a result of the development of society, technological development and environmental factors. The article analyzes the retrospective development of urban planning systems, their basic principles and characteristics. The authors of studies on the development of urban planning and leading urban planners of different historical eras have been identified. The staging of the development of urban planning systems has been improved by conducting a retrospective analysis and defining the principles of the formation of urban planning systems in different historical periods. It is proposed to supplement the classical stages in the development of urban planning systems that characterize the current state of urban planning and its promising trends. As a result of the analysis, ideas are formed about further trends in the development of urban planning systems, in particular, the processes of agglomeration development are analyzed as prospects for solving a number of pressing problems of urbanized territories. The role of suburbanization processes in the system of agglomeration development as a form of ensuring comfortable coexistence in the system “man-nature-urbanized environment” is considered.
FOREST TERRITORIES IN THE PLANNING STRUCTURE OF LVIV
Authors: Petryshyn Halyna , Liubytskyy Roman
Published: May 2021

The sphere of life of a large city includes forests as a natural resource and areas of its expansion and now they serve to implement modern eco-trends. In the evolution of Lviv we can distinguish several stages of relation to forested areas: 1 - exemption from forests of areas suitable for farming, horticulture and construction; 2 – the early 19th century. - planting of new forests for economic and rehabilitation purposes; 3 - the turn of the 19th and 20th centuries - the development of the recreational function of forests under the influence of hygienists, especially at water sources; 4 - the end of the 19th century and before 1939 - the development of the city of Lviv with new streets and compact plots according to the urban concepts of "villa in the park" and "garden city", which are wedged into the forest park areas; 5 - the second half of the 20th century. The rapid territorial development of industrial Lviv causes the emergence of large residential areas on the outskirts of the city. According to strict regulatory requirements for providing residents with green areas, part of the suburban forests were allocated for the establishment of local parks. A trade union recreation centers are developing around the city; 6 - 1980s - under the influence of the concept of a polarized landscape in conditions of state ownership of land and its resources, in suburban forests and in the city, separate plots with unique characteristics are distinguished, on the basis of which objects of nature reserve fund are created; 7 - from the 1990s and until now - the spreading of the city and the defragmentation of forests are observed. At the same time, the creation of new nature reserve facilities in Lviv and in the suburban area were performed as well as the formation of new reserves and their inclusion into European ecological networks.

At the same time, the process of permanent alienation of forest areas in favor of the spread of development is intensifying. The most vulnerable are the territories of Bryukhovychi and Vynnyky forest parks, which are fully included in the united territorial community of Lviv approved in 2020.
THE MEANS OF VISUAL COMMUNICATIONS IN THE ARCHITECTURAL ENVIRONMENT OF EDUCATIONAL ESTABLISHMENTS
Authors: Holubchak Kateryna
Published: May 2021

The current trends in the use of graphic design tools in the formation of the architectural environment are highlighted. The integration of the full range of visual information systems in the structure of educational institutions is of special importance, because of their purpose to remain modern and attractive to the young generation, understandable in orientation and perform their main function - motivation for learning and development. Means of visual communication in architecture are designed to implement a wide range of functions, which together are designed to ensure the implementation of a key idea - a person's belonging to the architectural space. The choice of technological means, style and color scheme of interior graphics depends on a number of criteria - the specifics of the space, its functional purpose, target audience, general style and architectural solution of the building and should take into account aspects of its emotional impact on people. Based on the analysis and generalization of the world practice of organization of the internal space of educational institutions, the main approaches to the introduction of visual communications in architecture and design are formulated. It is determined that the means of visual communication in the architectural environment of educational institutions are designed to implement a number of functions: spatial orientation and structuring routes, creating visual style of the institution, motivation for educational activities, artistic expression,  individualization of space. A study of the interior design of educational institutions has revealed that the revolutionary progress in the means of visual communication from simple signs and pointers to interactive multimedia screens and media facades continues to gain momentum with the advent of virtual and augmented reality tools that make their adjustments and revolutionize design in architecture, endowing it with interactive properties.
EUROPEAN EXPERIENCE OF RECONSTRUCTION OF MODEL DWELLING-HOUSES IS IN THE HISTORICALLY FORMED ENVIRONMENT
Authors: Sepjogin Jurij , Novosad Iryna
Published: May 2021

The article discusses the analysis of reconstruction of typical residential houses in the historically formed environment of European countries. Analyzing the zoning plans of European cities, it is possible to identify the main territorial areas, namely: the historic district, adjacent to the historic district and the outskirts of the city. All urban areas are formed from compositional solutions formed from residential and public buildings.The era of industrialization and typification has led to mass construction of model dwellings and these houses are the main building blocks of European cities such as: Czech Republic, Germany former GDR, Poland, Slovakia, Russia. Typical houses had stages in their development, reflecting the age of the time, politics, development of science and technology, and they are the historical environment. Industrial residential houses had stages in their development, each stage made adjustments with each decade improved planning solutions, increased floors, changed frontal and volumetric composition of the building. To date, the operational qualities of typical dwellings have become unusable and the need for reconstruction has come to an end. In order to learn about methods and techniques for improving the quality of reconstruction, the authors made an analysis of European cities: Czech Republic and Germany. The article analyzes reconstructed dwellings, techniques and methods by which the quality of volume-spatial and planning solutions was improved. The main techniques that were used in the reconstruction were identified: floor superstructure, extension of loggias and terraces, balconies; installation of additional volumes between apartment houses, re-planning of entrance group, the device of the elevator; warming of facades; replacement of window and door blocks; use of supergraphics. The article also proves that reconstruction and modernization is the only method by which it is possible to improve the quality of dwellings.
IDEOLOGICAL FEATURES OF NEOHISTORICAL TRENDS IN THE ARCHITECTURE OF POSTCOMMUNIST CIRCUMFERENCE IN THE CONTEXT OF THEIR STYLISTIC IDENTIFICATION
Authors: Liaskovskyi Oleh
Published: May 2021

The aim of the article is to reveal the ideological features that where characteristic of post-communist circumference, which formed the basis of the architectural worldview of the period 1990-2010; to determine the correctness of the term "postmodernism" to the buildings created at this time and the feasibility of its alternative.

The specific character of the architecture of post-communist circumference, marked by the tendency to historicism and retrospectivism. The author cites significant differences between such architecture and traditional Western postmodernism. Chief among them is the utopia of feudalism as an ideal past, which was perceived by post-communist circles as an obligatory ideological dogma. This was significantly different from Western postmodernism, which proclaimed the end of any ideology and monopoly of a single correct doctrine.

In addition, the article reveals the complicated process of switching the relationship between modern values from architectural modernism to the architecture of historicism. This paradoxical phenomenon of post-communist culture is due to the fact that the socialist system itself built within the Soviet "camp" a feudal and hierarchical content, which was materialized in the architectural forms of modernism, which, in its time, emerged as a style of democratic and socially responsible society. Thus, the protest against modernism in post-communist societies and the shift to historicism was in fact based on a desire for a modern society that was paradoxically associated with feudal one.
Experimental studies of burning plant pellets in a domestic boiler
Authors:  Basok B. , Davydenko B.  , Kuzhel L.  , Lysenko O. M.  , Veremiichuk A.
Published: May 2021

In recent years, biofuels have increasingly been used as fuel in Ukraine. Ukraine is an agro-industrial country with great potential for the production and use of pellets of plant origin. Our country ranks 6th in the world for the production of such biofuels as pellets, but most of them (about 85 %) are exported abroad. This is due to the low demand for pellets in the domestic market. Cereal straw can be used in municipal energy. The amount of straw left after harvest is sufficient for its use as fuel. This biofuel in its composition and calorific value is close to such traditional fuels as wood and peat. Also, raw materials for bio-pellets can be sunflower husks and energy crops. The main objectives of this work are experimental studies of the combustion of different types of agropellets. An experimental installation of a solid fuel boiler with a pellet burner was developed and implemented at the Institute of Engineering Thermophysics of the National Academy of Sciences of Ukraine to study the peculiarities of pellet combustion. With the help of the developed measurement system based on a comb with thermocouples, which is located above the torch in the boiler, the temperature regime in the boiler volume was studied and the peculiarities of the pellet burning process in the burner were determined. As a result of the work, experimental studies of the peculiarities of burning pellets of agricultural origin, namely straw (barley, wheat) and pellets from corn cobs were carried out. On the basis of the constructed graphic dependences the characteristic features of temperature modes of work of a household copper at burning of agropellets were defined. The use of the results is possible in the communal and industrial heat energy, social and budgetary sphere and individual household sector.
Concentration of aqueous solutions of low-volatile liquids in a falling film with evaporation into a cross-gas flow
Authors:   Shostka Institute of the Sumy State University, Lukashov V.К. , Кostiuchenko Y.V. , Sereda V.I.
Published: May 2021

The article presents the results of the investigation of the process of concentrating solutions of low-volatile liquids in a flowing film under the conditions of evaporation in the cross-flow of neutral gas. The purpose of the study was to establish the features of solution composition change along the film length. The study was carried out using the developed mathematical model with experimental determination of model parameters: heat and mass transfer coefficients. It was found that at the beginning of the film, the change in the concentration of the solution has a character close to linear, and then the concentration sharply increases until the solvent evaporates completely. It was shown that this pattern of change in the composition of the solution is related to the distribution of the temperature of the solution along the length of the film. The intensity of the concentration process increases with decreasing initial flow rate of the solution and its initial concentration as well as with increasing initial temperature of the solution, initial temperature of the gas and temperature of the surface of the wall along which the film flows. The concentration intensity decreases with an increase in the velocity of the gas entering the space above the film. Comparison of the calculation results concerning aqueous glycerol solution with the experimental data showed their good agreement. The data obtained in the article allow calculating the height of the film concentrator nozzle at which a given concentration of the solution is provided.
Development of thermoplastic composite materials based on modified polypropylene
Authors:   Ukrainian State University of Chemical Technology, Chervakov D.O. , Sverdlikovska O.S. ,   Ukrainian State University of Chemical Technology, Chervakov O.V. ,   Ukrainian State University of Chemical Technology
Published: May 2021

To improve the physical-mechanical and thermophysical properties of polypropylene-based thermoplastic composite materials, we performed modification of a polymer matrix by reactive extrusion of polypropylene in the presence of benzoyl peroxide and polysiloxane polyols. Modified polypropylene was compounded with basalt, carbon, and para-aramide reinforcing fillers in a screw-disc extruder. It was established that the reinforcement of modified polypropylene by basalt fibers ensured a 110% increase in tensile strength. The reinforcement of modified polypropylene by carbon fibers allowed fabricating thermoplastic composite materials with tensile strength increased by 14%. The maximum reinforcing effect was observed by using para-aramide fibers as reinforcing fibers for modified polypropylene with tensile strength increased by 30% as compared with initial polypropylene. It was determined that the obtained thermoplastic composite materials based on modified polypropylene can be processed into products by the most productive methods (extrusion and injection molding). The developed materials exhibited improved thermal stability. The proposed ways of modification methods provide substantial improvement in physical-mechanical and thermophysical properties of modified polypropylene-based thermoplastic composite materials as compared with initial polypropylene. In addition, they ensure a significant increase in service properties of the products prepared from thermoplastic composite materials based on modified polypropylene.
On the mechanism of acrylamide emulsion polymerization with the participation of its dimers
Authors:   Armenian National Agrarian University, Harutyunyan L.R. , Harutyunyan R.S. ,   Yerevan State University
Published: May 2021

The role of both dimeric and monomeric forms of acrylamide monomer in the process of polymerization in emulsions initiated by different type of initiators was discussed and the reasons for the reaction order with respect to monomer greater than unity were elucidated for acrylamide free radical polymerization in emulsions. The emulsion polymerization mechanism of acrylamide is discussed separately for the processes initiated by water-soluble initiator and oil-soluble initiator. The main difference in two cases is the distribution of acrylamide and initiator in aqueous and toluene phases. In the case of using water-soluble initiator, the initiator and acrylamide are in the same phase, whereas the molecules of the initiator and acrylamide are distributed between different phases in the case of using oil-soluble initiator. As a result, the participation of the dimers in the process of acrylamide emulsion polymerization is more efficient for the system where water-soluble initiator is used. For that system, it is suggested that both dimers and monomers of acrylamide participate in the propagation reaction at relatively low concentrations of acrylamide, which explains the value of the reaction order with respect to monomer greater than unity.
Properties of glasses in the system BaO–B2O3–SiO2–xAl2O3 (x=0; 5; 10 mol.%)
Authors:   Ukrainian State University of Chemical Technology, Hordieiev Yu.S. , Karasik E.V. ,   Ukrainian State University of Chemical Technology, Amelina А.A. ,   Ukrainian State University of Chemical Technology
Published: May 2021

This article shows the prospect of the system BaO–Al2O3–B2O3–SiO2 as the basis of vitreous and glass ceramic materials, which are widely used in rocket production for high-temperature protection of heat resistant alloys, in the power industry for sealing solid oxide fuel cells, and in the production of heat resistant glass ceramic materials. We examined the conditions of glass formation and properties of glasses with the following content of components (mol.%): BaO 30–70, B2O3 10–50, SiO2 20–60, and Al2O3 0–10. We established experimentally that the physical and chemical properties of glass, depending on its chemical composition, vary within the following limits: coefficient of linear thermal expansion of (71–122)10–7 К–1; glass transition temperature of 500–6500С; dilatometric softening point of 540–6700С; and density of 3.20–4.21 g cm–3. The volume resistivity of the studied glasses is within 1011–1013 Ohmcm at the temperature of 1500С. Generalization of the dependences of glass properties on their chemical composition was carried out with the use of the additive equations, for which the partial contributions of oxides to the values of the corresponding properties were determined by experimental and statistical methods. The established patterns of influence of components and conditions of glass formation on the physical and chemical characteristics of glasses allows implementing the process of designing of a wide range of glass compositions with the complex of specified properties in order to solve the tasks of their practical use.
Weed Management in Sesame
Authors: Ferrell Jason , Devkota Pratap
Published: May 2021

Sesame is a relatively new grain crop being grown in Florida. This publication discusses rotational considerations and herbicides for use in sesame. Written by Jason Ferrell and Pratap Devkota, and published by the UF/IFAS Agronomy Department, revised April 2021.
The Milk Income Loss Contract Program for Dairy Producers
Authors: De Vries Albert
Published: May 2021

The Milk Income Loss Contract (MILC) Program financially compensates dairy producers when domestic milk prices fall below a specified level. The program is authorized by the 2002 Farm Security and Rural Investment Act and has no set funding level. Eligible dairy producers are those who, anytime from December 1, 2001, to September 30, 2005, commercially produce and market cow milk in the United States or produce milk in the United States and commercially market the milk outside the United States. The USDA Farm Service Agency (FSA) administers the program. This document is AN152, one of a series of the Animal Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date August 1, 2004.
Warm Climate Production Guidelines for Agave
Authors: Schoellhorn Rick , Richardson Alexis A.
Published: May 2021

The century plant, or Agave family, is an incredibly diverse group of rosette-forming perennials. Agave are available to suit almost every climate zone in the U.S. with cold hardy forms that can withstand single-digit temperatures. This document is ENH 992, one of a series of the Environmental Horticulture Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date November 9, 2004.
Cost of Production for Processed Oranges in Southwest Florida in 2019/20
Authors: Singerman Ariel
Published: May 2021

This article presents a summary of the 2019/20 costs of production for processed oranges grown in southwest Florida. The methodology chosen to collect the data consisted of surveying growers directly so as to reflect their costs. The main changes this season were the decrease in fertilizer and nutritionals spending, and the increase in insecticides. The total cost of production for processed oranges in 2019/20 was $2,095.05 per acre.
Preventing Foodborne Illness: Clostridium botulinum
Authors: Schneider Keith R. , Parish Mickey E. , Goodrich Renée M. , Cookingham Taylor
Published: May 2021

Botulism is caused by the nerve toxins produced by the bacterium Clostridium botulinum, often resulting in a serious paralytic condition that can lead to death. This document is FSHN04-06, one of a series of the Food Science and Human Nutrition Department discussing common foodborne pathogens of interest to food handlers, processors, and retailers; Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Date Published: November 2004.

FSHN0406/FS104: Preventing Foodborne Illness: Clostridium botulinum (ufl.edu)
Alimentación Saludable para Personas de Edad: Nuevas Ensaladas
Authors: Hillan Jennifer
Published: May 2021

Las ensaladas son unos platos fáciles y rápidos con infinitas posibilidades. Cuando éstas se combinan con pan o galletas integrales constituyen unas comidas saludables y convenientes. ¡Pruebe alguna de las ideas que le sugerimos en su próxima ensalada!

This is document FCS 8696-SPAN, one in a series of the Department of Family, Youth and Community Sciences, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611. Publication date: February 2005.
Healthy Eating for Elders: Smart Snacking
Authors: Hillan Jennifer
Published: May 2021

Snacking can be good for you! Healthy snacks provide vitamins and minerals that may be lacking from your main meals. Keep these smart snacking tips in mind the next time you have a “snack attack.” This is document FCS 8698-ENG, one in a series of the Department of Family, Youth and Community Sciences, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611. Publication date: February 2005.
La Sante Nan Lavi Granmoun: Goute Entelijan
Authors: Hillan Jennifer
Published: May 2021

Goute gendwa bon pou-w. Goute kapab ba-w vitamin e mineral ou pat genyen nan manje-w. Kontinye goute entelijan sa yo nan tèt ou pou yon lòt tan ou vle goute.

This is document FCS 8698-HAI, in a series of the Department of Family, Youth and Community Sciences, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611. Publication date: February 2005.
IFAS Community Development: Toward a Consistent Definition of Community Development
Authors: Brennan Mark A.
Published: May 2021

This paper is part of a series of discussions on community development. This series will include specialized papers on civic engagement, community action, and other topics important to the development of community. This document is FCS 9207, one of a series of the Department of Family, Youth and Community Sciences, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: December 2004.
Bacterial Leaf Spot of Lettuce Disease: An Unpredictable Enemy to the Florida Lettuce Industry
Authors: Sandoya German , Odero Dennis Calvin
Published: May 2021

Bacterial leaf spot (BLS) of lettuce is caused by the bacterium Xanthomonas hortorum. BLS is more damaging in Florida, where the climate is conducive for disease development. The most effective control method is host resistance currently being developed by the UF/IFAS lettuce breeding program in all lettuce types. This new 4-page publication of the UF/IFAS Horticultural Sciences Department was written by Germán Sandoya and D. Calvin Odero.
Field Identification of Citrus Blight
Authors: Futch Stephen H. , Derrick Kenneth S. , Brlansky Ronald H.
Published: May 2021

Citrus blight is a disease that causes thousands of trees to become unproductive every year, resulting in losses in excess of $60 million annually. The cause of blight is unknown. The disease is found in many citrus-producing regions including North America, the Caribbean, South America, South Africa and Australia. Blight is found in mostly tropical or semitropical regions with moderate to heavy rainfall but is not reported in more arid regions such as the Mediterranean Basin and California. Blight has been present in Florida for more than 100 years and was frequently called young tree decline in the 1960s and 70s. This document is HS995, one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published February 2005. 

HS995/HS241: Field Identification of Citrus Blight (ufl.edu)
Field Diagnosis of Citrus Tristeza Virus
Authors: Futch Stephen H. , Brlansky Ronald H.
Published: May 2021

Citrus tristeza virus (CTV) is one of the most important pathogens affecting citrus worldwide. Tristeza was first reported in Florida in the 1950s. By the 1980s, it produced serious losses due to tree decline and death on sour orange and Citrus macrophylla rootstocks. Tree decline continues to be a problem today in groves that still have sour orange rootstock trees remaining. Due to CTV, few if any nursery trees are being propagated in Florida on sour orange, bittersweet or Citrus macrophylla rootstock. This document is HS996, one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published February 2005.

HS996/HS242: Field Diagnosis of Citrus Tristeza Virus (ufl.edu)
Confused Flour Beetle, Tribolium confusum Jacquelin du Val and Red Flour Beetle, Tribolium castaneum (Herbst) (Insecta: Coleoptera: Tenebrionidae)
Authors: Baldwin Rebecca , Fasulo Thomas R.
Published: May 2021

Red and confused flour beetles attack stored grain products such as flour, cereals, meal, crackers, beans, spices, pasta, cake mix, dried pet food, dried flowers, chocolate, nuts, seeds, and even dried museum specimens (Via 1999, Weston and Rattlingourd 2000). These beetles have chewing mouthparts, but do not bite or sting. The red flour beetle may elicit an allergic response (Alanko et al. 2000), but is not known to spread disease and does not feed on or damage the structure of a home or furniture. These beetles are two of the most important pests of stored products in the home and grocery stores. The confused flour beetle apparently received this name due to confusion over about its identity as it is so similar to the red flour beetle at first glance (Walter). This document is EENY-289 (IN566), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: June 2003. Revised: January 2004.

EENY289/IN566: Confused Flour Beetle, Tribolium confusum Jacquelin du Val (Insecta: Coleoptera: Tenebrionidae) and Red Flour Beetle, Tribolium castaneum (Herbst) (Insecta: Coleoptera: Tenebrionidae) (ufl.edu)
Tropical Orb Weaver Spider, Eriophora ravilla (C. L. Koch) (Arachnida: Araneae: Araneidae)
Authors: Edwards Glavis B.
Published: May 2021

Among the several large orb weavers occurring in Florida is Eriophora ravilla (C.L. Koch). Unlike similar large spiders of the genus Neoscona (Edwards 1984), E. ravilla is not a conspicuous member of the diurnal fauna during its adult stage. Nevertheless, nursery inspectors regularly encounter specimens of this species and submit them to the Division of Plant Industry for identification. Bites of this species are not known to cause serious effects to humans. This document is EENY-291 (originally published as DPI Entomology Circular 286), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: June 2003.

EENY291/IN568: Tropical Orb Weaver Spider, Eriophora ravilla (C. L. Koch) (Arachnida: Araneae: Araneidae) (ufl.edu)
Giant Bark Aphid, Longistigma caryae (Harris) (Insecta: Hemiptera: Aphididae)
Authors: Denmark Harold A.
Published: May 2021

This bark-feeding aphid was first described by Harris (1841) as Aphis caryae from pignut hickory, Carya glabra (= porcina) (Mill.) Sweet, in Massachusetts. It is the largest aphid that occurs in the United States, and it was probably this species that was reported by Thomas (1879) from limbs of pignut hickory in Illinois. Weed (1891) described its various forms and gave a short note on its biology. Wilson (1909) described the genus Longistigma for this species because of the extremely long slender stigma which extends around the end of the wing. This document is EENY-292 (originally published as DPI Entomology Circular 212), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: June 2003. Revised: May 2004.

EENY292/IN571: Giant Bark Aphid, Longistigma caryae (Harris) (Insecta: Hemiptera: Aphididae) (ufl.edu)
Whitefringed Beetles, Naupactus (= Graphognathus) spp. (Insecta: Coleoptera: Curculionidae)
Authors: Dixon Wayne N.
Published: May 2021

Naupactus leucoloma Boheman, the whitefringed beetle, was first collected in North America near Svea, Florida in 1936 (Buchanan 1939). This species and two others (N. minor (Buchanan) and N. peregrinus (Buchanan)) comprise the whitefringed beetle complex in North America (Buchanan 1947, Warner 1975). Whitefringed beetles are considered serious pests of many agricultural crops (Young et al. 1950) and have become pests of young pines planted on converted croplands in the South. This document is EENY-294 (originally published as DPI Entomology Circular 309), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: June 2003.

EENY294/IN572: Whitefringed Beetles, Naupactus (=Graphognathus) spp. (Insecta: Coleoptera: Curculionidae) (ufl.edu)
Brown Recluse Spider, Loxosceles reclusa Gertsch and Mulaik (Arachnida: Araneae: Sicariidae)
Authors: Edwards, Jr. Glavis B.
Published: May 2021

The brown recluse spider, Loxosceles reclusa Gertsch & Mulaik, is frequently reported in Florida as a cause of necrotic lesions in humans. For example, in the year 2000 alone, Loft (2001) reported that the Florida Poison Control Network had recorded nearly 300 alleged cases of brown recluse bites in the state; a subset of 95 of these bites was reported in the 21 counties (essentially Central Florida) under the jurisdiction of the regional poison control center in Tampa. This document is EENY-299 (originally published as DPI Entomology Circular 406), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: August 2003. 

EENY299/IN576: Brown Recluse Spider, Loxosceles reclusa Gertsch & Mulaik (Arachnida: Araneae: Sicariidae) (ufl.edu)
Angular Leaf Spot: A Bacterial Disease in Strawberries in Florida
Authors: Peres Natalia A. , Rondon Silvia I. , Price James F. , Cantliffe Daniel J.
Published: May 2021

Angular Leaf Spot (ALS) is a bacterial disease caused by Xanthomonas fragariae Kennedy & King, a pathogen highly specific to wild and cultivated strawberry, Fragaria x ananassa Duchesne (Legard et al. 2003). ALS is an important disease on winter strawberry production worldwide. In the U.S., it ranks 6th in economic importance after gray mold (Botrytis cinerea L.), verticillium wilt (Verticillium alboatrum Reinke & Berth), powdery mildew (Sphaerotheca macularis L.), anthracnose (Colletotrichum spp.), and pythium root rot (Pythium spp.) (Sorensen et al. 1997). The rapid spread of ALS is influenced by the increasing rate of interchange of plant material. This is document PP-199, a publication of the Plant Pathology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: June 2004.

PP-199/PP120: Angular Leaf Spot of Strawberries (ufl.edu)
Counting and Capturing Crocodilians
Authors: Cherkiss Michael S. , Fling Holly E. , Mazzotti Frank J. , Rice Kenneth G.
Published: May 2021

With few exceptions, crocodilians must be counted and caught for studies of their ecology. Most methods of finding and catching crocodilians in use today are modifications of methods for harvesting crocodilians (Chabreck 1963; Jones 1966). These methods have been adapted to suit the target species, or local habitat conditions and to minimize risk of injury to the crocodile and the investigator (Webb and Messel 1977; Hutton et al.1987; Walsh 1987; McDaniel and Hord 1990). Any particular situation will likely require innovations on methods used by others. This document is Circular 1451, one of a series of the Wildlife Ecology and Conservation Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First published: November, 2004.
CIR1451/UW198: Counting and Capturing Crocodilians (ufl.edu)
Tropical Hardwood Hammocks in Florida
Authors: Karim Annisa , Main Martin B.
Published: May 2021

Tropical hardwood hammocks are one of many natural communities found in Florida, but one of the few that are characterized by tropical plants. The word “hammock” was first used by early inhabitants to mean a cool and shady place. Later, settlers of Florida used the word “hummock” to indicate areas that were slightly higher in elevation from the rest of the land. Today, the term hammock is used in Florida to describe forest habitats that are typically higher in elevation than surrounding areas and that are characterized by hardwood forests of broad-leaved evergreens. Tropical hardwood hammocks occur in south Florida and along the Florida coastlines where danger from frost is rare and tropical trees and shrubs common to the Caribbean islands (West Indian origin) are able to survive. This document is WEC 181, one of a series of the Department of Wildlife Ecology and Conservation, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences (IFAS), University of Florida. Publication date: December 2004.

WEC 181/UW206: Tropical Hardwood Hammocks in Florida (ufl.edu)
Weed Management in Clover -- 2005
Authors: Ferrell Jason A.
Published: May 2021

Cool-season clovers are important for grazing systems in Florida. Clover provides grazing flexibility during winter and spring while warm-season grasses/forages are dormant. Weeds are problematic in clover fields and weed control can be more challenging because clover plants are sensitive to many pasture herbicides. There are also fewer herbicide products registered for use on clover compared to other forage species, so chemical weed control programs have to be chosen carefully. Table 1 provides information on herbicides that can be applied for weed control in clover production systems. This document is SS-AGR-235, one of a series of the Agronomy Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published January 2005.

SS-AGR-235/WG214: Weed Management in Clover (ufl.edu)