bluuebunny/crossref_metadata_2025_split huggingface dataset:
Flood and Post-flood Water Quality of Imonitea Freshwater Stream in Ndoni, Ogba Egbema Local Government Area, Rivers State, Nigeria
Authors: Bull O. S. , Obunwo C. C. , Aghaeze N. M. 
Published: April 2023

Imonitea freshwater stream serves as a major source of water for domestic and agricultural applications for the inhabitants of Imonitea, in Ndoni of Ogba-Egbema Local Government Area of Rivers State, Nigeria. This research was conducted to investigate the physicochemical characteristics and microbial loads of the flood and post-flood water quality of the Imonitea fresh water stream using standard methods. Water samples were collected at both flood and post flood periods using standard methods. The properties of the freshwater at both flood and post flood periods were respectively: pH (6.41+0.15; 6.88+0.15); total dissolved solids (88.87+ 20.07 mg/l; 103.13 +16.76 mg/l), total hydrocarbon (4.20+0.77 mg/l; 4.94+0.86 mg/l), electrical conductivity(126.6+17.59 µS/cm; 140.53+33.99 µS/cm), nitrate(0.11+0.08 mg/l; 1.26;+1.45 mg/l), turbidity(51.88+7.67 NTU; 20.39+16.76 NTU), sulphate(3.52+1.25 mg/l; 2.44+0.41mg/l). The levels of heavy metals were: iron (1.20+0.50 mg/l; 110.98+9.94 mg/l), lead (0.30+0.20mg/l; 1.25+0.51 mg/l), cadmium (0.12+0.01 mg/l; 0.07+0.03 mg/l). On the other hand microbiological loads at flood and post flood periods were 1.84±0.92 cfu/ml; 3.56 ± 1.36 cfu/ml and 1.72 +1.92 cfu/ml; 3.56 +.1.20 cfu/ml respectively. At both periods, turbidity and total dissolved solids exceeded national standards. Although lead levels were within permissible limits, iron and chromium exceeded their permissible limits. The microbiological loads at both periods also exceeded national limits. The Water Quality Index was very high (3,192.81; 3,838.13), implying that the freshwater body was not fit for human consumption.
Apparent Control Measures of Tourism and Hospitality Practitioners to Curb Insecurity in Ogun State Southwest Nigeria
Authors: Agbebi P. A. 
Published: April 2023

This study examined and described the socio-economic characteristics of respondents in the study area, identified the various damages that insecurity has caused hospitality and tourism industry and proffered some control measures to curb insecurity in Ogun State using standard methods through the administration of 152 questionnaires. Data collected were subjected to statistical analyses. Findings obtained revealed that: 65 (43.2%) strongly agreed, 73 (47.9%) agreed, 1 (0.7%) undecided, 11 (7.1%) disagreed, 2 (1.1%) strongly disagreed with the mapping out comprehensive security checks by hotels and tourism destinations by the practitioners will reduce security and safety challenge in the industry. This result showed that huge number of respondents agreed to the preparation and presentation of security documentation and reports on periodic basis and working with video surveillance such as close circuit camera (CCTV). In conclusion the study recommended that the hospitality and tourism practitioners in Ogun State should constantly and consistently maintain secured environment at hotels and tourism destinations in order to encourage sustainable influx of patrons.
Pengukuran Tingkat Kepuasan Pelayanan Pusat Penelitian dan Pengabdian Kepada Masyarakat
Authors: Masito Fitri , Komalasari Yeti , Idyaningsih Nining , Hamzah Syukri , Winarto Hadi 
Published: April 2023

Penelitian ini dilakukan untuk mengetahui pengukuran tingkat kepuasan layanan pusat penelitian dan pengabdian kepada masyarakat. Pada era keterbukaan saat ini, Survey Kepuasan Masyarakat membantu adanya komunikasi dua arah antara pengguna layanan. Melalui SKM, para pengguna layanan secara langsung dapat menyampaikan harapan dan masukan yang bertujuan untuk peningkatan mutu pelayanan yang optimal. Jenis penelitian yang digunakan pada penelitian ini adalah jenis kuantitatif menggunakan skala likert. Penelitian ini bertujuan untuk mengukur tingkat kepuasan layanan pusat penelitian dan pengabdian kepada masyarakat melalui pertanyaan penelitian pada google form pada para dosen dan diuji validitas dan reabilitas pada instrument penelitiannya. Pelaksanaan pelayanan dosen oleh Politeknik Penerbangan Palembang khususnya layanan PusPPM pada tahun 2020 secara umum mencerminkan tingkat kualitas yang baik, dengan nilai IKM 3,35 atau setelah dikonversi menjadi 83,75 untuk penelitian dan untuk PKM nilai IKM-nya adalah 3,17 atau setelah dikonversi menjadi 79,25. Nilai IKM untuk SKM penelitian berada pada interval 81,26 – 100 sehingga dapat disimpulkan bahwa mutu pelayanan adalah Sangat Baik (A). Sedangkan nilai IKM untuk SKM PKM berada pada interval 62,51 - 81,25 sehingga dapat disimpulkan bahwa mutu pelayanan adalah Baik (B).
Trends in the development of secondary vocational education and prospects for scientific research
Authors: Blinov V. I. 
Published: April 2023

The development of secondary vocational education in Russia under the influence of socio-economic factors requires full-fledged scientific and methodological support. Among scientific research, an important role is played by works related to forecasting, which is not limited to attempts to predict the future, but prepares for the adoption of promising management decisions, creates a meaningful ground for frontier developments of a scientific and scientific-methodological nature.Many aspects of the development of secondary vocational education are deservedly called “eternal”, since the issues of material and technical support, qualification and training of teaching staff, the ratio of fundamental and practical orientation acquire new meanings at any stage of socio-economic development of society. It seems that the development of vocational education takes place according to the laws of reciprocating motion or a pendulum. From the pragmatic mission of providing the economy with personnel, to the humanitarian mission of comprehensive and harmonious personal development, bypassing the state of equilibrium. At the same time, the previous configurations of the system have never been repeated in full yet. This suggests that it is advisable to apply to many research topics repeatedly, without fear of coming to previously obtained results.Modern pedagogy of vocational education needs reliable information about current topics, which makes it possible to make research really useful for the development of practice, to prepare researchers to solve problems of a proactive nature.
Pengaruh Sifat Percaya Diri dan Keaktifan Belajar Di Kelas Terhadap Prestasi Belajar Matematika Siswa Kelas VIII SMP Negeri 2 Wawotobi
Authors: Kaharuddin Andi , Tulak Topanus 
Published: April 2023

Penelitian ini bertujuan untuk mengetahui pengaruh sifat percaya diri dan keaktifan belajar terhadap prestasi belajar matematika siswa kelas VIII SMP Negeri 2 Wawotobi. Jenis penelitian ini adalah Ex-postfacto dengan menggunakan pendekatan kuantitatif. Populasi dalam penelitian ini sebanyak 79 siswa. Dalam penelitian ini menggunakan sampel sebanyak 43 siswa. Teknik pengumpulan data pada penelitian ini menggunakan angket sifat percaya diri, keaktifan belajar dan dokumen prestasi belajar matematika siswa. Teknik analisis data yang digunakan adalah analisis statistika deskriptif dan analisis inferensial dengan teknik analisis regresi linier ganda. Hasil analisis deskriptif menunjukan bahwa sifat percaya diri siswa kelas VIII SMP Negeri 2 Wawotobi berada pada kategori sedang dengan presentase 44%, sedangkan untuk keaktifan belajar matematika siswa kelas VIII SMP Negeri 2 Wawotobi berada pada kategori sedang dengan presentase 42%, dan untuk prestasi belajar matematika siswa kelas VIII SMP Negeri 2 Wawotobi berada pada kategori sedang juga dengan presentase 42%. Hasil analisis inferensial menunjukan bahwa persamaan garis regresi linier Y = 33,493 + 0,365X1 + 0,704X2. Secara stimulan nilai Fhitung sebesar 4,05 dan
dengan Ftabel sebesar 3,232. Nilai Fhitung = 4,05 > Ftabel = 3,23, maka H0 ditolak dan H1 diterima, maka dapat disimpulkan secara bersama-sama sifat percaya diri dan keaktifan belajar berpengaruh secara signifikan terhadap prestasi belajar matematika pada siswa kelas VIII SMP Negeri 2 Wawotobi. Secara individu sifat percaya diri tidak berpengaruh terhadap prestasi belajar matematika siswa, karena Nilai thitung = 0,960 < ttabel = 2,021, sedangkan keaktifan belajar menunjukan pengaruh yang signifikan terhadap prestasi belajar matematika, yaitu ditunjukan bahwa Nilai thitung = 2,262 > ttabel = 2,021. Pengujian koefisien determinasi diperoleh nilai R² sebesar 0,162, bermakna bahwa secara bersama-sama variabel sifat percaya diri dan keaktifan belajar dapat menjelaskan variabel prestasi belajar sebesar 16,2% sedangkan sisanya dijelaskan oleh variabel lain diluar penelitian ini.
Pengaruh Kepercayaan Diri Terhadap Prestasi Belajar Matematika Siswa Kelas VII SMP Negeri 2 Rantetayo
Authors: Remme Betrik Videlia 
Published: April 2023

Penelitian ini bertujuan untuk mengetahui: ada tidaknya pengaruh Kepercayaan diri terhadap Prestasi belajar matematika siswa kelas VII SMP Negeri 2 Rantetayo, metode penelitian ini yaitu kuantitatif, Berdasarkan hasil penelitian dapat disimpulkan bahwa: (1) dari analisis regresi linear sederhana diperoleh nilai konstan sebesar 64,592 dan koefisien regresi untuk variabel kepercayaan diri sebesar 0,085 sehingga diperoleh persamaan regresi sederhana Y =64,592 + 0,085X. (2) uji hipotesis (uji t) dengan membandingkan thitung dengan ttabel yaitu 2,038>2,01063 maka dapat disimpulkan bahwa ada pengaruh kepercayaan diri terhadap prestasi belajar matematika siswa kelas VII SMP Negeri 2 Rantetayo.
A scientometric research of high-cited publications in Obsessive-Compulsive Disorders during 2012-2021
Authors: Grover Sandeep , Gupta B.M. , Ahmed K.K. Mueen , Kappi Mallikarjun 
Published: April 2023

Objective. To examine the bibliometric characteristics of high-cited publications (HCPs) on Obsessive-Compulsive Disorder (OCD).
Design/Methodology/Approach. The Scopus database was searched to identify HCPs on OCD published from 2002 to 2021. Three-hundred and ninety-five (n=395) articles having at least 100 citations were included in the analysis. Quantitative and qualitative indicators were applied to measure and evaluate the research productivity and citation impact of authors from the most productive countries, organizations, and authors. The VOSviewer was used to visualize the collaborative interaction among the most productive countries, organizations, authors, and keywords.
Results/Discussion. The 395 HCPs published on OCD during 2012-2021 were cited 75197 times. The authors from the United States (n = 216), United Kingdom (n = 59), Netherlands (n =37), and Canada (n=30) were the most productive. Clinical studies accounted for the largest publications share among publication types, followed by studies focusing on treatment, epidemiology, genetics, risk factors, pathophysiology, and complications. Among important keywords besides OCD, other most common keywords were anxiety (n=89), Cognitive Behavioural Therapy (n=87), Clomipramine (n=68), Fluoxetine (n=65), and Behavioural Therapy (n=53). The topmost productive organizations were the Harvard Medical School, USA (n=37), Massachusetts General Hospital, USA (n=36), Columbus University, USA (n-28), and New York State Psychiatric Institute, USA (n=27). The most productive authors were D. Mataix-Cols (Sweden)(n=21), followed by B.D. Greenberg (USA)(n=18), S.L. Rauch (USA)(n=17) and D.J. Stein (South Africa)(n=17). These 395 HCPs were published in 135 journals, with The American Journal of Psychiatry publishing many papers. Papers published in Neuroscience and Bio-Behavioral Reviews had the highest number of citations per paper (n=509.0).
Conclusion. The present study suggests that most HCPs have emerged from the United States, are based on funded research, and have involved authors from more than one country.
Originality/Value. This study presents significant results, in a more comprehensive manner, related to the high-cited publications (HCPs) on Obsessive-Compulsive Disorder (OCD).
Formação de professores e seu impacto no uso da realidade aumentada em sala de aula: uma revisão integrativa da literatura
Authors: Fernande Ester Ohl , Tori Romero , Silva Manoela Milena Oliveira da 
Published: April 2023

A tecnologia está imbricada com o desenvolvimento da sociedade contemporânea, movimento esse que necessariamente deve ser acompanhado pela educação. Dentre as Tecnologias Digitais de Informação e Comunicação (TDIC), a Realidade Aumentada (RA) destaca-se por inserir conteúdos virtuais diretamente no espaço físico, oferecer uma experiência situada, imersiva e inovadora ao aluno. Apesar disso, é um recurso pouco utilizado por professores em atividades didáticas ou complementares. Nesse contexto, este artigo investigou na literatura como a RA para a educação é integrada na formação de professores, visando identificar o papel da formação docente na integração da RA no currículo. Utilizando a revisão integrativa de literatura, cinco artigos foram selecionados e analisados, evidenciando que os professores sentem-se inseguros em mudar a forma como atuam quando não estão amparados pedagogicamente e não têm o conhecimento ou experiência com a ferramenta.
Does land title increase agricultural investments and productivity? Evidence from Togo
Authors: Yovo Koffi , Kolani Lardja 
Published: April 2023

Purpose. This paper assesses the effect of land title on agricultural investment and productivity in Togo. The purpose is to provide empirical evidence on the importance of land titles and so to encourage governments to promote land registration and facilitate small producers’ access to land titles.
Results. The results show that land title positively affects investment decision of farmers and recursively the agricultural productivity. The possession of land title and customary rights increases the probability of investment respectively by 13 % and 21 % compared to farmers who do not have any rights on the land they exploit. The investment in turn, determines the level of productivity of the farmers.
Scientific novelty. The scientific novelty of this paper is to show that the possession of the land title does not have a direct effect on productivity. This effect passes through the investment which itself depend on credit. The recursive model estimated by instrumental variable regression approach appeared as an appropriated model to understand the effect of land security on the agricultural productivity.
Practical value. Since 2018, Togolese government has adopted a land code recognizing the land title as the main guarantee of land security likely to stimulate more agricultural investment and productivity. The results seem to indicate that legal land institutions do not protect the security of land tenure better than traditional institutions. Households, therefore, still essentially refer to local habits and customs that are accepted by their entire community. Public authorities must therefore recognize that local rights are as efficient as legal rights conferred by land title. However, to stimulate land titles demand, Government must remove constrainsts in land market. Specifically, he must struggle against corruption which plagues the country’s legal land institutions.
Why is ozone in South Korea and the Seoul metropolitan area so high and increasing?
Authors: Colombi Nadia K. , Jacob Daniel J. , Yang Laura Hyesung , Zhai Shixian , Shah Viral , Grange Stuart K. , Yantosca Robert M. , Kim Soontae , Liao Hong 
Published: April 2023

Abstract. Surface ozone pollution in South Korea has increased over
the past 2 decades, despite efforts to decrease emissions, and is
pervasively in exceedance of the maximum daily 8 h average (MDA8) standard
of 60 ppb. Here, we investigate the 2015–2019 trends in surface ozone and
NO2 concentrations over South Korea and the Seoul metropolitan area (SMA),
focusing on the 90th percentile MDA8 ozone as an air quality metric. We
use a random forest algorithm to remove the effect of meteorological variability
on the 2015–2019 trends and find an ozone increase of up to 1.5 ppb a−1
in April–May, while NO2 decreases by 22 %.
Global 3-D atmospheric chemistry model simulations including recent chemical updates can successfully simulate surface ozone over South Korea and China as well as the very high free-tropospheric ozone
observed above 2 km altitude (mean 75 ppb in May–June) and can reproduce the observed 2015–2019 emission-driven ozone trend over the SMA including its seasonality.
Further
investigation of the model trend for May, when meteorology-corrected ozone
and its increase are the highest, reveals that a decrease in South Korea NOx
emissions is the main driver for the SMA ozone increase. Although this
result implies that decreasing volatile organic compound (VOC) emissions is
necessary to decrease ozone, we find that ozone would still remain above 80 ppb even if all anthropogenic emissions in South Korea were shut off. China
contributes only 8 ppb to this elevated South Korea background, and ship
emissions contribute only a few parts per billion.
Zeroing out all anthropogenic emissions in East Asia in the model indicates
a remarkably high external background of 56 ppb, consistent with the high concentrations observed in the free
troposphere, implying that the air quality standard in South Korea is not
practically achievable unless this background external to East Asia can be
decreased.
Observations of biogenic volatile organic compounds over a mixed temperate forest during the summer to autumn transition
Authors: Vermeuel Michael P. , Novak Gordon A. , Kilgour Delaney B. , Claflin Megan S. , Lerner Brian M. , Trowbridge Amy M. , Thom Jonathan , Cleary Patricia A. , Desai Ankur R. , Bertram Timothy H. 
Published: April 2023

Abstract. The exchange of trace gases between the biosphere and the atmosphere is an important process that controls both chemical and physical properties of the atmosphere with implications for air quality and climate change. The terrestrial biosphere is a major source of reactive biogenic volatile organic compounds (BVOCs) that govern atmospheric concentrations of the hydroxy radical (OH) and ozone (O3) and control the formation and
growth of secondary organic aerosol (SOA). Common simulations of BVOC
surface–atmosphere exchange in chemical transport models use parameterizations derived from the growing season and do not consider
potential changes in emissions during seasonal transitions. Here, we use
observations of BVOCs over a mixed temperate forest in northern Wisconsin
during broadleaf senescence to better understand the effects of the seasonal changes in canopy conditions (e.g., temperature, sunlight, leaf area, and leaf stage) on net BVOC exchange. The BVOCs investigated here include the terpenoids isoprene (C5H8), monoterpenes (MTs; C10H16), a monoterpene oxide (C10H16O), and sesquiterpenes (SQTs; C15H24), as well as a subset of other monoterpene oxides and dimethyl sulfide (DMS). During this period, MTs were primarily composed of α-pinene, β-pinene, and camphene, with α-pinene and camphene dominant during the first half of September and β-pinene thereafter. We observed enhanced MT and monoterpene oxide emissions following the onset of leaf senescence and suggest that senescence has the potential to be a significant control on late-season MT emissions in this ecosystem. We show that common parameterizations of BVOC emissions cannot reproduce the fluxes of MT, C10H16O, and SQT during the onset and continuation of senescence but can correctly simulate isoprene flux. We also describe the impact of the MT emission enhancement on the potential to form highly oxygenated organic molecules (HOMs). The calculated production rates of HOMs and H2SO4, constrained by terpene and DMS concentrations, suggest that biogenic aerosol formation and growth in this region should be dominated by secondary organics rather than sulfate. Further, we show that models using parameterized MT emissions likely underestimate HOM production, and thus aerosol growth and formation, during early autumn in this region. Further measurements of forest–atmosphere BVOC exchange during seasonal transitions as well as measurements of DMS in temperate regions are needed to effectively predict the effects of canopy changes on reactive carbon cycling and aerosol production.
Heat wave monitoring over West African cities: uncertainties, characterization and recent trends
Authors: Ngoungue Langue Cedric Gacial , Lavaysse Christophe , Vrac Mathieu , Flamant Cyrille 
Published: April 2023

Abstract. Heat waves can be one of the most dangerous climatic hazards affecting the planet, having dramatic impacts on the health of humans and natural ecosystems as well as on anthropogenic activities, infrastructures and economy. Based on climatic conditions in West Africa, the urban centres of the region appear to be vulnerable to heat waves. The goals of this work are firstly to assess the potential uncertainties encountered in heat wave detection and secondly to analyse their recent trend in West Africa cities during the period 1993–2020. This is done using two state-of-the-art reanalysis products, namely the fifth-generation European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis (ERA5) and Modern-Era Retrospective analysis for Research and Applications (MERRA), as well as two local station datasets, namely Dakar–Yoff in Senegal and Aéroport Félix Houphouët-Boigny, Abidjan, in Côte d'Ivoire. An estimate of station data from reanalyses is processed using an interpolation technique: the nearest neighbour to the station with a land sea mask ≥0.5. The interpolated temperatures from local stations in Dakar and Abidjan show slightly better correlation with ERA5 than with MERRA. Three types of uncertainty are discussed: the first type of uncertainty is related to the reanalyses themselves, the second is related to the sensitivity of heat wave frequency and duration to the threshold values used to monitor them, and the last one is linked to the choice of indicators and the methodology used to define heat waves. Three sorts of heat wave have been analysed, namely those occurring during daytime, nighttime, and both daytime and nighttime concomitantly. Four indicators have been used to analyse heat waves based on 2 m temperature, humidity, 10 m wind or a combination of these. We found that humidity plays an important role in nighttime events; concomitant events detected with wet-bulb temperature are more frequent and located over the northern Sahel. Strong and more persistent heat waves are found in the continental (CONT) region. For all indicators, we identified 6 years with a significantly higher frequency of events (1998, 2005, 2010, 2016, 2019 and 2020), possibly due to higher sea surface temperatures in the equatorial Atlantic Ocean corresponding to El Niño events for some years. A significant increase in the frequency, duration and intensity of heat waves in the cities has been observed during the last decade (2012–2020); this is thought to be a consequence of climate change acting on extreme events.