bluuebunny/crossref_metadata_2025 huggingface dataset:
O Fest Verão de São Pedro da Aldeia e o currículo escolar: desafios e possibilidades
Authors: Oliveira André Brito , Osborne Renata
Published: May 2022

O Fest Verão é um evento cultural e esportivo de praia, realizado no município de São Pedro da Aldeia, RJ, há 50 anos. Trata-se do maior evento esportivo de massa do interior do Estado do Rio de Janeiro e um dos mais antigos do Brasil. Apesar de praticado desde 1969, forjado na cultura local e nos princípios do lazer, praticado por homens e mulheres adultos, além de crianças e adolescentes, as práticas corporais de praia ainda não fazem parte do currículo escolar, distanciando-se do habitus instituído. Este estudo tem como objetivo verificar/discutir a relação das práticas culturais do Fest Verão na categoria de base (sub-11 a sub-17) com os conteúdos abordados pelo currículo da Educação Física, desenvolvidos na escola local. Para tanto, sob a perspectiva da pesquisa qualitativa, três diferentes fontes foram trianguladas para que se chegasse à interpretação dos dados: I) análise do currículo escolar local; II) entrevista semiestruturada aplicada a um técnico de equipe; III) entrevista semiestruturada aplicada a atletas de uma equipe sub-17. Apesar da existência do megaevento cultural aldeiense em torno dos esportes de praia, percebe-se que a escola local continua reproduzindo massivamente o ensino das práticas hegemônicas corporais nacionais (futsal, voleibol, basquetebol, handebol). Este distanciamento entre currículo escolar e práticas culturais impede a existência de um protagonismo comunitário reflexivo e consciente, nascido da apropriação de um saber acumulado historicamente e vivo na cultura local.
Identifikasi Formalin Pada Ikan Segar di Pelabuhan Pendaratan Ikan Idi Rayeuk Kabupaten Aceh Timur
Authors: Mardiana Rosa , Lidyawati Lidyawati , Zulfikri Muhammad
Published: May 2022

Indonesia is the second largest country after China in terms of capture fisheries production. Capture fisheries production in Indonesia in 2016 reached 6.83 million tons with a value of Rp. 125.3 trillion. The abundant fishery potential causes the fish preservation process at the fishermen level to be constrained. The limited number of preservatives that are safe for food makes formaldehyde an alternative preservative. The use of formaldehyde in food can cause poisoning to the human body.In the formaldehyde test conducted by the Integrated Supervision Team of the Aceh Marine and Fisheries Service (DKP) in 2017 it was found that the practice of using formalin as a fish preservative was still used by some fishermen and fish traders in Indonesia. Aceh. This research was conducted to determine the sustainability of the practice of using formaldehyde by fishermen and traders by identifying the formalin content in tuna and mackerel in Idi Rayeuk Fish Landing Port, East Aceh Regency. The samples used in this study were 3 tuna and 3 mackerel fish taken randomly at the Idi Rayeuk Fish Landing Site, East Aceh. The results showed that all samples tested showed negative results or the fish did not contain formaldehyde. This shows that the public and fishermen's awareness of the dangers of formaldehyde is very good.
Pengaruh Brand Image, Harga Dan Kualitas Pelayanan Terhadap Kepuasan Konsumen Pada Jasa Pengiriman JNE Cabang Tegal Besar
Authors: Feti Fatimah  , Yova Ferdiansa Resa , Gunawan Yohanes
Published: May 2022

Kepuasan konsumen merupakan tujuan utama setiap pelaku bisnis dalam bidang jasa. tujuan dalam penelitian ini untuk mengetahui seberapa besar pengaruh brand image, harga, serta kualitas pelayanan dapat mempengaruhi kepuasan konsumen jasa JNE Cabang Jember. Jenis penelitian ini menggunakan kuantitatif deskriptif. Metode analisis dalam penelitian ini adalah analisis regresi berganda, Populasi dalam penelitian ini yaitu pelanggan jasa JNE Cabang Jember. Sampel yang digunakan sebanyak 140 responden. Hasil penelitian ini menunjukkan bahwa (1) variabel brand image berpengaruh positif dan signifikan terhadap kepuasan konsumen. dengan t hitung sebesar 2,988 dan tingkat signifikasi 0,003. (2) variabel harga berpengaruh positif dan signifikan terhadap kepuasan konsumen. dengan t hitung sebesar 2,238 dan tingkat signifikasi 0,027. (3) variabel kualitas pelayanan berpengaruh positif dan signifikan terhadap kepuasan konsumen dengan t hitung sebesar 6,073 dan tingkat signifikasi 0,000. Variabel brand image, harga dan kualitas pelayanan secara bersama sama berpengaruh positif dan signifikan terhadap kepuasan konsumen pada jasa JNE Cabang Jember.
Smart Irrigation for Crop Management Using IoT
Authors:   Department of Electronics and Communication Engineering, Mangalore Institute of Technology & Engineering Mangalore, Karnataka, India, Fazil Mohamed
Published: May 2022

Agricultural production involves cultivating plants and raising domesticated animals to produce food and feed for humans and other animals. Agriculture or farming as it is also called is a complex activity, and each aspect of it impacts the overall crop production. Farmers need to manage all segments of crop production to achieve success. Farmers make strenuous efforts to produce good quality crops but they face challenging issues of monitoring and maintaining it around the clock. The problems in the agriculture domain largely affect the food production and supply chain. This project includes the proposal of an integrated crop management system to maintain the health of crops by supplying the required amount of water and nutrients to them. One aim is to reduce the amount of water lost to unnecessary evaporation, a concern in the 21st century. As a result, other factors, such as cost, time, and effective care are also benefited. This is why, after the soil preparation and planting are completed, the growth phase of the plant also requires special attention. The paper discusses a process for detecting and solving plant health issues using an intelligent automated system.
Recurrent Catamenial Pneumothorax After Multiple Chest Tube Placements, Pleurodesis and Vats
Authors:   Department of Internal Medicine - Graduate Medical Education, Saint Michael’s Medical Center, Newark, NJ, USA, Chauhan Mit
Published: May 2022

Catamenial pneumothorax is characterized by spontaneous pneumothorax occurring 72 hours before or after onset of menstruation in a reproductive aged woman. It is an extremely rare condition, and although generally thought to be due to abnormal migration of endometrial tissue to the pleural space, the mechanism of this migration is unclear. We present a case of recurrent catamenial pneumothorax after chest tube placements, pleurodesis and videoassisted thoracoscopic surgery (VATS).
Impact of information communication technology on reading proficiency of undergraduates in the University of Port Harcourt, Nigeria
Authors: Emasealu Helen U.
Published: May 2022

The study adopted a correlational research design to assess the impact of information communication technology on undergraduate students’ reading proficiency. The population of the study includes all 31,675 undergraduate students in University of Port Harcourt for both newly admitted and returning undergraduate students in the 2020/2021 academic session. 1500 respondents were sampled for the study. The instrument for data collection was two self-designed questionnaire entitled: “Utilization of ICT Scale” (UTIS) and “Reading Proficiency Scale” (RAPS). Out of the 1500, 1287 questionnaires were correctly filled and returned indicating 85.8% response rate. Data was analyzed using descriptive statistics of mean (x̄) and standard deviation (±), and simple regression. The findings showed high use of ICT tools, low reading proficiency and negative relationship between ICT tools and reading proficiency. It was concluded that the use of ICT among students is impacting negatively on their reading performance. Among others, it was recommended that there should be policy of ICT use in education across educational levels, and importantly, learning activities should accommodate learning ICT tools, as well as, providing learning materials in digital formats accessible to students.
Information resources utilization of biotechnologists and food technologists in a federal research institute
Authors: Makinde Olayinka Babayemi , Jiyane Glenrose Velile , Mugwisi Tinashe
Published: May 2022

The study investigated the information resources utilization of biotechnologists and food technologists of the Federal Institute of Industrial Research Oshodi (FIIRO) in Nigeria. The descriptive survey design was adopted in carrying out the study. The population consisted of all the biotechnologists (37) and food technologists (45) of the institute. These researchers were selected using non-probability sampling method of total population sampling - a type of purposive sampling technique. A questionnaire was used as the instrument for data collection. The data collected were analyzed using frequency count and percentage. The key findi ngs of the study among others were that: the majority of the biotechnologists and food technologists sought information in carrying out research, solving personal needs, and for general awareness; and they utilized a wide variety of information sources. The study concluded that diverse and balanced delivery of multiple information sources must be meticulously offered to these researchers. The study recommended specialized collections offering of more appropriate information services to meet the biotechnologists’ and food technologists’ needs for information.
Influence of information literacy skills on research productivity of academic staff of federal universities in North-eastern Nigeria
Authors: Babalola Yemisi Tomilola , Umar Musa Yila
Published: May 2022

This study investigated influence of Information literacy skills on research productivity of academic staff of federal universities in Northeastern, Nigeria. A survey design was adopted in carrying out the study. The population for this study comprised of 4258 academic staff of six (6) federal universities in North-eastern, Nigeria, from which a sample of 366 was drawn and used for the study. Multi-stage sampling technique was used to select the sample for the study. Simple random sampling was used to select three (3) out of the six federal universities so as to have a manageable sample simple size these includes; Abubakar Tafawabalewa University Bauchi, University of Maiduguri and Federal University Wukari Thereafter, stratified sampling method was used to select four faculties common to all the universities, namely faculty of Education, Science, Agriculture and Social science. The data collected were analyzed using percentage, mean and standard deviation. The results of the study among others showed that information literacy skills had no significant effect on research productivity of academic staff in federal universities in the North-eastern. This implies that the level of information literacy skill of the academic staff cannot determine their research productivity. The study recommended among others that Academic staff universities in the North-eastern, Nigeria should be encouraged to utilize their information literacy skills in order to enhance the research productivity.
Influence of organisation communication and work environment on job performance of librarians in selected universities in North-Central Nigeria
Authors: Abdulrahman Abdulrazaq Baba , Abdullahi Mustapha Adisa , Namo Alaku Louis
Published: May 2022

This study investigated the influence of job satisfaction on the performance of librarians in selected university libraries in North-Central, Nigeria. The study was guided by 2 research questions. The descriptive survey design was used for the study. The population of the study was 67 librarians and the entire population was used because the size is manageable. The instrument used for data collection was questionnaire. Data collected were analyzed using mean and standard deviation to answer the research questions. Findings of the study revealed that organizational communication and work environment significantly influence the job performance of librarians in university libraries in North-Central Nigeria. Based on the findings, it was recommended that university librarians should ensure that the use of down to top communication be used to ensure subordinate are carried along and also university libraries should maintain a good working environment by providing all necessary facilities and equipments for a clean and decent environment.
Library public relations practice management: Challenges for academic library public relations practitioners in Nigeria
Authors: Udofot Columbus , Sambe Manasseh Tyungu
Published: May 2022

The interdependency among academic library publics that has become a necessity has ushered in accelerated demand for quality library resources and services. It therefore behooves on academic libraries that want to remain relevant to encourage effective and efficient library public relations practice management. This paper therefore explores library public relations practice management with particular reference to challenges for academic library public relations practitioners in Nigeria. To achieve this, the paper identified, reviewed and analyzed major concepts and looked at the purpose of library public relations practice management in academic libraries. It also discusses the need for library public relations practice management in academic libraries and skills requirements for library public relations practitioners in the management of library public relations practice in academic libraries. The paper also discusses challenges of library public relations practice management such as inadequate financial allocation and the absence of media acceptance. It recommends, among others, that funds be made available for academic libraries for effective and efficient library public relations practice management.
The Effect of Plastic Tree Wrap on Borer Incidence in Dogwood
Authors: Owen Nancy , Sadof Clifford , Raupp Michael
Published: May 2022

In an integrated pest management program developed for the National Park Service, tree wrap was applied to young dogwoods to protect the trees from deer. The presence of vinyl wrap was found to have a significant effect on the incidence of dogwood borers in these trees. Dogwood borers attacked wrapped trees more frequently and more successfully than unwrapped trees.
Effects of Leaf Removal on Survival of Transplanted Sabal Palms
Authors: Broschat Timothy
Published: May 2022

A large landscape Installation of mature sabal palms was utilized to determine if complete leaf removal, as opposed to leaving one-third of the canopy on the palm, would improve transplant success in this species. After eight months 95% of the palms completely defoliated were alive, versus 64% for palms transplanted with leaves. The original leaves left on palms in the latter treatment all died within one to two months and required subsequent manual removal. Among the surviving palms, canopy size of defoliated palms was slightly larger than in palms with leaves.
Prediction of Cover Type on Rights-Of-Way After Maintenance Treatments
Authors: Bramble W.C. , Byrnes W.R. , Hutnik R.J. , Liscinsky S.A.
Published: May 2022

Plant cover occurring on electric transmission rights-of-way after commonly used maintenance treatments was studied in two Physiographic Provinces in Pennsylvania (Allegheny Mountain and Piedmont) to predict cover type development. At both locations, a tree sprout-shrub cover type developed after handcutting; a grass-forb-shrub cover type after mowing; a grass-forb cover type after mowing plus herbicide and stem-foliage sprays; a forb-grass cover type after foliage spraying; and a shrub-forb-grass cover type after selective basal spraying. Data from other studies showed that aerial spraying produced a grass-forb cover type. The plant species composition of each cover type is described for both Physiographic Provinces.
Bioassays for Testing the Efficacy of Ground Sprayed Insecticides for Gypsy Moth Eradication Programs in California
Authors: Miller Jeffrey , Brown Valerie , Dowell Robert
Published: May 2022

The insecticides Bacillus thuringlensis (BT), carbaryl, and diflubenzuron were tested in a field-laboratory study for the effect of killing first through third instar gypsy moth larvae on foliage of valley oak trees in California. Larval mortality differed significantly between the BT, the other insecticides and the check treatments. Also, the effects of all three of the insecticides were still apparent 28 days posttreatment.
Work Measurement and Productivity Improvement
Authors: Henning Ray
Published: May 2022

In the past, equitable evaluation of the work performed by contract or company overhead line clearance crews was not easily accomplished. In 1972, Ohio Edison Company developed and implemented a Work Measurement System as a solution to this problem. Over the years, the System has been automated, enhanced, expanded, and refined. Most importantly, it has been used effectively to improve the efficiency of the overall operation and, thereby, significantly reduce costs.
Sustainable Development in the Urban Forest
Authors: McNeil John
Published: May 2022

A major threat to natural green spaces is urban development. An urban forestry strategy is required in order to incorporate the best parts of this natural green space into the urban fabric on a sustainable basis. Current issues and a strategy that has been successfully implemented at the Town of Oakville are described.
Seattle City Light Urban Tree Replacement
Authors: Barnes Ben , Greenlee Julia
Published: May 2022

In the spring of 1988 Seattle City Light developed a Citizens' Advisory Forum on Tree Replacement comprised of representatives of its distribution service area. The forum was charged with the development of policy recommendations for removal and replacement of trees that interfere with power lines. On April 6, 1989, the Tree Replacement Forum submitted its recommendations to the Utility. Since that time, the Utility has been developing those recommendations into a workable program that will enhance the environment for our customers, communities, and other interested entities within our distribution system.
Ontario Hydro as a Potential user of Tree Growth Regulators
Authors: Arron Geoffrey
Published: May 2022

Inconsistent results have been obtained after application tree growth regulators (TGRs). The most popular method of application (trunk injection) results in bark damage, wood staining, and bleeding injection holes, and the few economic analyses that have been reported suggest that only those trees that are expensive to trim and/or are trimmed on a short cycle are worth treating. Given the predominance of long trimming cycles in Ontario, the concern of the public over the use of pesticides, and the problems that arise after their application, the trunk injection of TGRs would not be a useful addition to the operational tree trimming program of Ontario Hydro.
Urban Arboriculture Waste Reduction and Recycling
Authors: Beattie K.A.
Published: May 2022

The introduction of any new or unique programs within a municipal government in financial restraint requires excellent planning. Understanding the concepts of change and the development of a strong opportunity analysis are critical to the success of the new program. This article reveals the pre-planning process, change management, a generic strategic planning process and a theoretic implementation program for a civic Christmas tree recycling project.
Attitudes Towards Vegetation in a Desert Urban Forest: Creating a Sense of Place
Authors: Kennedy Christina , Zube Ervin
Published: May 2022

Attitudes towards vegetation are especially important in Tucson, located in the Sonoran Desert, where water availability is limited and where native vegetation can play an important role in the city's image and sense of place. This paper reports on interviews with long-term Tucson residents and a survey of students who are relatively new to Tucson. Vegetation was seen as contributing to Tucson's sense of place, however, preferences for native versus exotic vegetation appeared related to length of time in Tucson. Location and context were identified as important factors to be considered when choosing vegetation types or considering expanding the urban forest. Similarities between this study and ones from temperate regions, showing the importance of location and territoriality apparent in attitudes towards vegetation in the innercity, are discussed.
Ontario Hydro Line Clearance Program
Authors: Cormack W. Barclay
Published: May 2022

Increased attention to customer service and to environmental initiatives has created significant changes in Ontario Hydro's traditional line clearing programs. A new management system is being implemented that relates forestry work program outputs to Corporate targets for reliability, customer satisfaction and safety. This system will assist in justifying budgets in the face of increased pressures for line clearing dollars.
Management of Mature Trees
Authors: Clark James , Matheny Nelda
Published: May 2022

The management of mature trees involves the application of cultural treatments in the context of a tree biology which changes with time. Key elements in understanding of the biology of old trees are the life history strategy of individual species, the limitations on growth that develop due to structural and resource availability considerations, and the causes of mortality in forest and landscape trees. Since the biology of the tree changes with time, so must its management. Arborists can play a central role in the maintenance of a mature, stable condition. They identify routine and remedial treatments, as well as assess the ability of a tree to respond to such treatment. However, the capacity of an arborist to restore a declining tree to a stable condition is questionable.
Planting Survival of Selected Street Tree Taxa
Authors: Miller Randall , Miller Robert
Published: May 2022

Planting survival rates were determined for commonly planted street trees in Wisconsin. Removal records provide evidence of a four year establishment period. With a few exceptions, survival was found to be generally independent of species/cultivar selections in the cities of Milwaukee and Stevens Point, but significant differences were found in the city of Waukesha. Recommendations are made regarding species/cultivar use.
Describing the Spread of Oak Wilt Using a Geographic Information System
Authors: Shelstad Dixon , Queen Lloyd , French David , Fitzpatrick Daniel
Published: May 2022

The oak wilt fungus (C. fagacearum) spreads both through root grafts to adjacent trees and via insects over longer distances. Effective control of the disease requires a better understanding of the spatial and temporal components of both types of spread. Towards that end, color infrared aerial photography covering a ten-year interval of time was interpreted and then analyzed using a GIS for purposes of describing spread rates and areas affected. The GIS allowed rapid and thorough assessment of both overland and local disease spread. New infection centers were found to occur at greater distances than previously reported, and these new centers accounted in total for the most significant component of increase in total area affected by the fungus.
Soil Improvement and Increased Growth Response from Subsoil Cultivation
Authors: Rolf Kaj
Published: May 2022

Subsoiling with an excavator, before planting, was used to reduce the negative effects of soil compaction. Two soil types were used and results showed that soil bulk density was reduced and pore volume and airfilled porosity at field capacity had increased. Penetration resistance was lowered for both sites. Three years after planting, plants were higher at the subsoiled sandy soil but not at the clay soil, compared with the controls.
Branch Pruning Wound Closure
Authors: Neely Dan
Published: May 2022

Branches were pruned from 10 species of trees by the "Shigo" and the conventional methods. The branches (four per tree, five trees per species) averaged 50 to 75 mm (2 to 3 in) in diameter. Wounds from conventional cuts were 30 to 50 percent larger than wounds from Shigo cuts. There was little closure of Shigo wounds during the first year. After four years, the conventional wounds were smaller than the Shigo wounds on six species, approximately the same size on one species, and larger on three species.
Phytotoxicity of Sunspray Ultra-Fine Spray Oil and Safer Insecticidal Concentrate Soap on Selected Ornamental Plants in Summer in North Florida and South Georgia
Authors: Mizell Russell
Published: May 2022

Two percent Sunspray Ultra-fine SprayR oil and Safer Insecticidal ConcentrateR soap were applied 5 times in separate treatments to 30 species of trees and shrubs growing in containers under commercial nursery conditions in north Florida. A similar test was conducted on 17 species of container-grown ornamentals in south Georgia. Horticultural oil and soap were applied at 10 day intervals beginning July 16, 1990. Plants were visually rated for phytotoxicity prior to the second through fifth application and 10 days after the fifth application. A third test of only thre* applications of horticultural oil or soap on 9 species of plants was conducted at Monticello, Florida beginning August 28, 1990. All the treatments were applied from 9:30 - 11:00 A.M. and daily temperatures were above 35° each day. No phytotoxicity was observed on any of the plants tested.
Exploring Alternatives to Tree Injection
Authors: Perry Thomas , Santamour Frank , Stipes R. Jay , Shear Theodore , Shigo Alex
Published: May 2022

The history of injection practices in medicine and arboriculture is reviewed and the problems associated with these practices are discussed. Columns of occluded (compartmentalized) xylem and killed bark are typically associated with wounds caused by injection. These columns extend both up and down the trunk and may extend out into the roots. Forty percent or more of the transport system can be blocked. Typical wound responses are illustrated. In most cases, there are other methods for inducing the uptake of fertilizers, biocides, and growth regulators by trees. These alternatives need to be promoted and improved and new technologies need to be developed.
Bacterial Species in Relation to Forest Tree Decline
Authors: Scortichini M. , Belisario A. , Motta E.
Published: May 2022

Bacterial species colonize trees endophytically without causing apparent damage, but can act as facultative parasites by utilizing tissues altered by abioticfactors. Bacteria, especially anaerobic species, can cause wetwood perse and act as pioneer microorganisms that prepare substrates for decay fungi. Xylella fastidiosa, a xylem-limited bacterium, acts as a primary pathogen inciting leaf scorch and dieback in some trees. Bacterial penetration occurs via wounds in the aerial part of the plant or in the roots. Some bacteria can act as agents of ice formation (ice nucleation active bacteria) also promoting the entry of other organisms.
Structural and Biological Effects of Trunk Injected Paclobutrazol in Yellow Poplar
Authors: Zillmer Ronald , Chaney William , Holt Harvey
Published: May 2022

Sixty-three yellow poplar {Liriodendron tulipifera) trees, 5-11 indbh.wereselectedinaplantationatthe Martell Experimental Forest, Purdue University. Three trunk injection treatments were applied to three groups of 21 trees in June, 1989. Treatments consisted of injecting, at a pressure of 60 psi, 40 ml per injection hole of 1) Clipper 20 UL, 2) methanol with methylene blue dye (0.3% solution), or 3) water. The occurrence and duration of weeping from injection holes were evaluated. Sample trees from each treatment were harvested and the trunk dissected into both longitudinal and transverse sections 4 and 12 months after injection. The distance that wood discoloration or dye staining extended both above and below the injection sites and the volume of sapwood affected were substantially greater in trees injected with Clipper 20 UL or methanol/methylene blue than in trees injected with water. Closure of injection wounds was influenced by cambial and phloem dieback that resulted in nonuniform callus growth and incomplete closure of most wounds 12 months after treatment.
Citizen Attitudes Toward Orangestriped Oakworm: Impact, Control, Host Aesthetics, and IPM Practices
Authors: Coffelt Mark A. , Schultz Peter B.
Published: May 2022

A random survey of two Norfolk, VA residential neighborhoods (N=132) revealed citizen attitudes toward the orangestriped oakworm,Anisota senatoria. The majority of citizens surveyed (98.5%) consideredA. senatoriaa serious problem, experienced greaterthan 50% defoliation (56%), and were willing to tolerate some damage (70%). Chi-square analysis showed the greater the damage, the less tolerant citizens were toA. senatoriainfestation (P<0.0001). The physical presence ofA. senatoria, as measured by frass and larvae on property, was the primary citizen complaint and defoliation effects were considered as minor. Citizens were willing to pay for professionalA. senatoriacontrol. Many (43.5%) felt municipal control was ineffective because of poor timing of treatments. They felt that trees (35%) and the lawn (34%) were aesthetically the most important components in the landscape. Most citizens (80%) were willing to pay for natural control, and some (38.5%) felt that pesticides were unsafe. The attitudes towardA. senatoriaprovided a framework for designing an urban pest management program.
Removal History and Longevity of Two Street Tree Species in Jersey City, New Jersey
Authors: Polanin Nicholas
Published: May 2022

A random sample of more than 500 streetside plantings of London plane,Plantanusxacerifoliaand Norway maple,Acer plantanoides, were removed over a ten year period 1975-1985. London plane trees, attaining an average site of 39.03 years, were removed due to sidewalk damage, while dead Norway maples were removed after an average of 48.13 years (P<0.05).
Growth and Iron Content of Three Legume Tree Species at High Root-Zone Temperature
Authors: Graves William
Published: May 2022

Root-zone temperatures in city landscapes are supraoptimal for the growth of many temperate tree species, and selection of heat-resistant genotypes will aid in the development of successful urban forests. The purpose of this study was to compare the growth of Gleditsia triacanthosvar. inermis (honeylocust), Maackia amurensis (Amur maackia), and Sophorajaponica (pagoda tree) at high root-zone temperature. Nutrient solution in which seedlings were grown was held at 35°C, for 0, 6,12, and 24 hr/day for 42 days. For honeylocust and Amur maackia, dry mass was similar for plants at 35°C 0 and 6 hr/day but was reduced among plants at 35°C tor 12 and 24 hr/day. In contrast, mass of pagoda tree was decreased 55% by 35°C root-zone temperature for 6 hr/day, but mass increased as exposure to 35°C increased beyond 6 hr/day. Young lamina of honeylocust and Amur maackia at 35°C for 12 and 24 hr/day were chlorotic, and a high-temperature-induced reduction in the concentration of iron in leaves of all species was confirmed. These results indicate that growth of pagoda tree seedlings is more sensitive to cyclic episodes of high rootzone temperatures than to constant heat. The influence of high root-zone temperature on growth of Amur maackia was similar to that of honeylocust, which in previous studies was more heat resistant than other trees used in temperate urban forests.
The Relationship Between Personal Protection Behaviors and Fear Levels of Healthcare Professionals Who Had Covid-19 Vaccine
Authors: BAYKARA MAT Seda Tuğba , BAŞTARCAN Çisem , AYDİN Okan Anil , ÇALIŞKAN Kadir
Published: May 2022

Background. It is known that the use of personal protective equipment is effective in preventing the spread of covid19. The purpose of this study is to reveal the relationship between personal protection behaviors and fear levels of healthcare professionals who get Covid-19 vaccine. Material and methods. This descriptive and relationship-seeker study was carried out between February and April 2021 using an online questionnaire method with 155 healthcare professionals who were actively involved in the Covid-19 pandemic process in a hospital in Istanbul. The data were obtained using the "Participant Information Form" consisting of 19 items and the "Covid-19 Fear Scale". Results. The average score obtained from the Covid-19 Fear Scale was medium (X̄ = 2.54 ± 0.89). A positive significant relationship was found between the fear of Covid-19 and the use of gloves, masks, and disposable gowns before vaccination by the healthcare professionals participating in the study. After vaccination, there is a positive and significant relationship between the use of gloves and surgical masks and the fear of Covid-19. Conclusions. According to the results of the study, female participants and participants who express their economic situation as moderate have a higher level of fear about Covid-19, and that vaccination affects the use of masks and disposable gowns by reducing the fear of Covid-19. Failure of healthcare workers to pay attention to the use of personal protective behivors after vaccination may increase the spread of variants such as omicron.
Automatic Power Factor Detector and Corrector using Arduino Mini Pro
Authors: Prof P. M. Mankar  , Sagar P Deshmukh  , Rani B Sakhe  , Ruchita B Charate  , Snehal R Pojge  , Rutuja P Dhawane
Published: May 2022

In recent years, the power quality of the ac system has become great concern due to the rapidly increased numbers of electronic equipment, power electronics and high voltage power system. Most of the commercial and industrial installation in the country has large electrical loads which are severally inductive in nature causing lagging power factor which gives heavy penalties to consumer by electricity board. This situation is taken care by PFC. Power factor correction is the capacity of absorbing the reactive power produced by a load. In case of fixed loads, this can be done manually by switching of capacitors, however in case of rapidly varying and scattered loads it becomes difficult to maintain a high power factor by manually switching on/off the capacitors in proportion to variation of load within an installation. This drawback is overcome by using an APFC panel.
A Study on Perception towards Selected Investment Avenues, with Special Reference to Working Women in Kozhikode District
Authors: Dr.  M. Dhanabhakyam  , Fahad K. P
Published: May 2022

The subjective characteristic of investment makes the investment perception more complex. In the today’s world, our economy is blessed with a large number of investment avenues. Each of these avenues has their own peculiarity as well as their own pros and cons. People make their investment decisions based on analyzing all the factors of investment like risk, return, time horizon, taxability and various other crucial factors of different avenues. In the present study, the researcher attempts to study about the investment options preferred by the working women and how well do they perceive about different investment avenues available. The data was collected from workingwomen of Kozhikode District in various sectors, with the help of Convenient Sampling Technique. 20 investors each of selected six investment avenues constitute the population for the study. Findings of the study will help to know the investment perception of the working women in Kozhikode District towards different avenues.
Cruzada contra la delincuencia: ¿democracia versus autoritarismo?
Authors: González Luis Armando
Published: May 2022

No hay resúmenes disponibles.
ECA Estudios Centroamericanos, Vol. 51, No. 576, 1996: 925-930.
Economía y privatización ; Elecciones ; Paz y reconciliación
Authors: El Editor
Published: May 2022

No hay resúmenes disponibles.
ECA Estudios Centroamericanos, Vol. 51, No. 576, 1996: 963-969.
Fintech Development and Cooperation Strategies of Vietnamese Commercial Banks
Authors: Quang Dung Pham , Huu Thien Kieu , Manh Hung Pham
Published: May 2022

The digital technology platform with the Industrial Revolution 4.0 has created favorable conditions for the combination of finance and technology (Fintech) to create new products and services in the financial - banking sector. With the advantage of creativity and the ability to apply advanced digital technology platforms such as blockchain technology, cloud computing, artificial intelligence, data analysis, the Fintech field has been developing strongly globally in general and in Vietnam in particular. Therefore, the cooperation between commercial banks and Fintech companies will bring benefits to both parties and increase new experiences for customers. The article focuses on analyzing cooperation strategies between Vietnamese commercial banks and Fintech companies as well as proposing solutions to solve obstacles hindering this cooperation.
Development of Grating and Dewatering Units of a Cassava Processing Machine
Authors: L.A. Olutayo , L.A.S Agbetoye , B. Kareem , D. M. Olupona
Published: May 2022

The cassava processing machine that combines two units’ major operations of grating and dewatering was developed. The development of the machine prototype involved design, fabrication and performance evaluation. The machine which is simple to operate and maintain was powered by 2.2 kW (3.8 hP) single phase, electric motor. The machine was tested with five grater speeds (1100, 1200, 1300 1400 and 1500 rpm), dewatering with five speeds (150, 200, 250, 300, and 350 rpm) and five compression spring loads (100, 200, 300, 400 and 500 N). The recommended cassava variety TMS 30110 was also used. The results obtained from the performance of the machine showed a significant improvement over similar machines. The results from performance evaluation of the cassava processing machine showed that, 1400 rpm grater speed has the highest grating capacity and efficiency. Also in the combine machine (grating and dewatering) experiment, 1400 rpm grater speed, 300 rpm screw expeller speed and 400 N compression spring load has the highest machine capacity, throughput and efficiency of 114.23 kg/h, 95. 88 kg/h and 83.9% respectively from 10 kg cassava tuber. The moisture content 46% wb obtained was within the recommended value. The losses recorded during machine operation was minimal.
Detection of Covid-19 on Localized Ct-scan Images Using Deep Learning Convolution Neural Network
Authors: Widodo Sri , Sulistiyanti Anik , Yudistira Indra Agung
Published: May 2022

Pneumonia Coronavirus Disease 2019 (COVID-19) is an inflammation of the lung parenchyma caused by Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Supporting examinations carried out to establish a diagnosis of Covid-19 is through radiological examinations, one of which is Computed Tomography Scan (CT-Scan). The current method used to diagnose COVID-19 from CT scan images is by studying the 2-D CT Scan image data set using naked eye, then interpreting the data one by one. This procedure is ineffective. Research aim is to develop Covid-19 detection application on localized CT-Scan images using Deep Learning Convolution Neural Network (CNN). Pre-Trained Model used is ResNet-50. Test was carried out 3 times. First test uses original CT image, with an accuracy of 92.5%. Second test used pulmonary CT data that had been separated from surrounding tissue, with an accuracy of 95%. The last test used localized CT data (Covid Candidate), the accuracy obtained was 98%.
The treatment of business risk has always been an important element for the life of the company: some techniques for dealing with risks and arguing their negative effects on the company
Authors: Carmine Boniello
Published: May 2022

Each company in its ordinary activity can come across multiple dangers that can evolve unfavorable to the company and compromise its development and economic stability with often irreversible consequences. The risk manager's task is to identify, evaluate, manage and control corporate risks and concerns all possible types of risks. To effectively manage the risks it is necessary to a systematic and organized approach, it is necessary to resort to specific methodologies and techniques. In this work we will propose some techniques to treat the risks and arguing its negative effects on the company.
Challenges and Opportunities in the Sustainable Radioactive Waste Management
Authors: Pușcașu Greta-Marilena
Published: May 2022

Nuclear power plants are worldwide operated. While some countries consider phasing out nuclear power, others are considering building new power plants. Controversial debates have always arisen over the sustainability of nuclear energy, and radioactive waste has been the main topic. The possibility of long term management of radioactive waste considering the population behavioural and demographic characteristics is of particular importance in this study. The aim of the study was to examine if demographic factors and behavioural factors influence the sustainable management of radioactive waste, more precisely their final disposal. In particular, we analysed the relationship between each variable and the acceptance of the final disposal of radioactive waste and the location of the disposal facility. To find the answer of the present research study, we set the acceptance of the final disposal of radioactive waste and the location of the disposal facility as dependent variable and two demographic variables and two behavioural variables as independent variables. Statistical correlations were performed between the selected variables by using SPSS Statistics to establish the relationship between the factors at the individual level and the acceptance of the final disposal of radioactive waste in the context of sustainable development. Questionnaires were used as research tool. Based on this investigation, it was found that there is no correlation between perceived risks and the acceptance of the final disposal of radioactive waste and the location of the disposal facility. Likewise, this study shows that individuals’ acceptance of radioactive waste is based on individual behaviour, but it is also influenced by the demographic characteristics.
The Effect of Technology Acceptance Model and E-service Quality on Customer Trust and Implications on Consumer Loyalty of Kai Access Users
Authors: Thales A Sabam Juventus , Suryandari Retno Tanding
Published: May 2022

The Covid-19 pandemic forced the transportation sector to go online which eventually resulted in a high economic downturn. PT. Kereta Api Indonesia (Persero), as a leading state-owned transportation company continues evaluating its services in order to deliver a priority service that are expected to be able to produce priority improvements in the future, therefore PT. KAI (Persero) carries out a communication strategy to find out mutual information feedback from consumers because communication is a tool for interacting and exchanging information with one another. To support Indonesian government’s social distancing policy, PT. KAI issues a new policy on social distancing practice and non-cash payment, ultimately aiming at minimizing the viral spread. In this regard, the strategy is to form the Technology Acceptance application feature to create customer trust, which in turn will develop KAI customers’ loyalty. This study recruited 100 train passengers in the company’s operating region 2 as participants. PLS-SEM was applied to analyze the data, showing that perceived usefulness, perceived ease of use and e-service quality significantly affected consumer trust. While perceived usefulness was found to not affect the customer loyalty, the perceived ease of use, e-service quality, and consumer trust exhibited significant, positive effect on consumer loyalty.
Efficacy of Transformational Leadership on Performance of Mandera County Government in Kenya
Authors: Y. M. Daud , C. Ouma , era A. Ong
Published: May 2022

This study investigated the efficacy of transformational leadership on performance of Mandera County government in Kenya based on the 4Is of transformational leadership. Mandera County has faced a plethora of challenges including its inability to marshal, develop, direct and control the human and financial resources leading to maladministration and poor service delivery, among others. The objective of the study was to examine the efficacy of the four dimensions of transformational leadership on performance on Mandera County government. The target population for the study comprised of the personnel elected and appointed and/or in the office of the Governor, Members of County Assembly and public service board employees of the county government (N=696). Stratified simple random sampling technique was applied to select the sample size from the total population (n=247). The study used structured questionnaires as the tool for collecting primary data. SPSS version 24 was applied to compute descriptive and inferential statistics. The study concluded that individualized consideration, inspirational motivation and idealized influence do not have a statistically significant influence on the performance of Mandera County Government (p>.05). In contrast, intellectual stimulation had a statistically significant association with performance of Mandera County Government (p>.05) In contrast, intellectual stimulation had a statistically significant association with performance of Mandera County Government (p>.05) However, the multiple linear regression analysis indicates that three of the 4Is of TL (individualized consideration, inspirational motivation, intellectual stimulation) excluding idealized influence were significantly associated with the performance of the County Government of Mandera. Leadership plays a central role in the success and failure of organizations and transformational leadership is the panacea for solving contemporary management and leadership challenges in sub-national levels in Kenya.
Human Capital and Poverty: A Theoretical Modeling of the Transmission Channels of the Link
Authors: B. Roger Abotome , Bien-Aimé Koto P. , M. Dickens Liwono
Published: May 2022

Drawing inspiration from human capital theories and hypotheses emerging from work in the economics of education and health, the objective of this article is to show, through theoretical microeconomic modelling, the transmission channels of the link between human capital and poverty. The mathematical formalization thus applied has made it possible to establish the relationships between human capital and poverty by emphasizing in particular the mechanisms underlying the relationships linking the two. To this end, this study paves the way for empirical evaluation.
The HIPC’s Staggering Privatization and Quandary in the Agro-industrial Sector in Cameroon and Labour Discontent in La Société des Héavéas du Cameroun (HEVECAM), 1996-2020: A Sequential Autopsy
Authors: T. Akara Damian
Published: May 2022

The economic crisis that gripped Cameroon and several sub-Saharan countries in the 1980s called for pre-emptive measures to hold back the calamity. In a desperate need for assistance, they turned to some donor institutions like the IMF and World Bank. In response, the Highly Indebted Poor Countries Initiative was imposed and subsequently modified into Structural Adjustment Programmes (SAPs) where privatization was considered one of the kingpins or principal instruments needed to overturn the hazardous situation. The government of Cameroon was forced to short-list a number of agro-industrial and other state-owned enterprises (SOEs) for privatization among which was the Cameroon Rubber Company, La Société des Héavéas du Cameroun (HEVECAM). It was hoped that the privatization of this enterprise would lead to improved management, increased production and better working conditions. Unfortunately, the privatization of HEVECAM left behind a repugnant image of an enterprise which staggered along the way instigating many discontented workers to agitate against the new order. As such, this paper argues that the privatization of HEVECAM, as in other cases, was not a decisive solution to the revamping and rejuvenation of SOEs in Cameroon. The study reveals that the privatization of HEVECAM amplified the quandaries of the labour force thereby triggering an atmosphere of uneasiness between the workers and the management of the enterprise.