bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application and Construction of Microbial Biosensors in Chemical Forensics
Authors:   , Couper Justine 
Published: November 2021

<p>Forensic toxicologists are often required to rapidly determine if a suspicious substance, such as a white powder, contain toxins. Preliminary tests usually include screens for a wide range of 'Potentially Toxic Chemicals' (PTCs) such as cyanide, pesticides, herbicides, medicinal and illicit drugs. Subsequent analyses are generally very time-consuming and costly. Any protocol screening for a range of PTC's, prior to more robust chemical analysis, could therefore save significant analytical time. Microbial biosensors are ideal biological tools that can be utilised for these purposes. In vivo bioassays were developed for a range of PTCs using a suite of microbial biosensors, in a variety of complex matrices including water, white powders, soils and vomit to determine the effect of matrix complexities on the biosensors, as well as the toxins. The lux biosensor, Escherichia coli HB101 pUCD607, showed an EC50, (where EC50 is the effective concentration of toxin causing 50% reduction in bioluminescence), of cyanide in water of 20 mg/L. This biosensor still detected cyanide, in talc and flour, at EC50 values of 589 mg/L and 700 mg/L respectively. Vibrio harveyi showed good sensitivity to cyanide in initial water bioassays with an EC50 of 9.66 mg/L. The V. harveyi biosensor did not detect cyanide spiked in talc or flour when tested up to a maximum concentration of 10,000 mg/L. The Mycena citricolor ATCC 34884 fungal biosensor, showed lower sensitivity levels however it detected the presence of sodium monofluoroacetate (1080) at a concentration 1000 mg/L. Preliminary investigation of a novel, faster, solid-phase sample preparation method was also undertaken and its potential proven, particularly in PTC spiked white powders. Here the biosensor showed sensitivity to arsenate, arsenite, copper, cyanide and PCP at 1000 mg/L.This project highlighted the inability of current biosensors to reliably detect 1080 and the difficulty in constructing a specific biosensor. The utilisation of a reliable vector and inducible promoter are pivotal in biosensor construction.</p>
Linked Tree-Decompositions of Infinite Represented Matroids
Authors:   , Azzato Jeffrey Donald 
Published: November 2021

<p>It is natural to try to extend the results of Robertson and Seymour's Graph Minors Project to other objects. As linked tree-decompositions (LTDs) of graphs played a key role in the Graph Minors Project, establishing the existence of ltds of other objects is a useful step towards such extensions. There has been progress in this direction for both infinite graphs and matroids. Kris and Thomas proved that infinite graphs of finite tree-width have LTDs. More recently, Geelen, Gerards and Whittle proved that matroids have linked branch-decompositions, which are similar to LTDs. These results suggest that infinite matroids of finite treewidth should have LTDs. We answer this conjecture affirmatively for the representable case. Specifically, an independence space is an infinite matroid, and a point configuration (hereafter configuration) is a represented independence space. It is shown that every configuration having tree-width has an LTD k E w (kappa element of omega) of width at most 2k. Configuration analogues for bridges of X (also called connected components modulo X) and chordality in graphs are introduced to prove this result. A correspondence is established between chordal configurations only containing subspaces of dimension at most k E w (kappa element of omega) and configuration tree-decompositions having width at most k. This correspondence is used to characterise finite-width LTDs of configurations by their local structure, enabling the proof of the existence result. The theory developed is also used to show compactness of configuration tree-width: a configuration has tree-width at most k E w (kappa element of omega) if and only if each of its finite subconfigurations has tree-width at most k E w (kappa element of omega). The existence of LTDs for configurations having finite tree-width opens the possibility of well-quasi-ordering (or even better-quasi-ordering) by minors those independence spaces representable over a fixed finite field and having bounded tree-width.</p>
The Accountability of Voluntary Organisations: Implications for Government Funders
Authors:   , Cribb Joanne 
Published: November 2021

<p>The mechanisms of accountability of government-voluntary sector contracting are problematic for both government agencies and voluntary organisations. If they are to be revised, new mechanisms need to be appropriate for both parties. While the public accountability system has been relatively well described and analysed, the accountability systems of voluntary organisations have not. This research aimed to explore accountability from the perspective of voluntary sector managers and board members asking to whom, for what and why they thought themselves accountable. Four organisational case studies were undertaken involving 34 in-depth interviews with managers and board members. Interview data was triangulated with document analysis and supplemented with field observations. The results showed that respondents thought themselves most accountable to their clients. Clients were prioritised because respondents were focused on maintaining their organisations' legitimacy. Being seen to provide quality services to clients meant that their organisations were viewed in a positive light by key stakeholders, including funders. A group of internal stakeholders (staff, members and the board) were considered second most important. Staff were seen as important because they delivered the organisations' services. The support of members also brought legitimacy. Government agencies were ranked third. Government funding was viewed as a 'means to an ends': an input needed to provide a quality service to clients. An implication of the findings for the reform of the accountability mechanisms of contracting is that the assumptions that the current system is based on - influenced by agency theory - may not be valid. Respondents were found to have similar goals to government agencies: achieving positive outcomes for clients. The goal incongruence assumed by agency theory was not identified.</p>
Characterization Studies on Calcium Borate Compound Modified by ZnCO3, CaCO3 and Fructose
Authors: El Damrawi Gomaa , Saad Menna , Amr M. Abdelghany  
Published: November 2021

Calcium fructoborate solid materials of formula Ca(C6H10O6BO)2 ·3.5H2O were prepared by chemical wet technique. The neutral trigonal form of boron organic ester with fructose, under the solid form, is prepared and modified in solution in the anionic tetrahedral form; the borate compound is investigated by XRD spectroscopy. An ideal strong amorphous forming material is obtained upon modification with ZnCO3 or CaCO3. 11B NMR solids and solution and Raman spectroscopy were developed to determine different types and the amount of borate derivative present in products. The modifier portion from calcium carbonate and fructose are consumed for boron transformation from three to four coordinated units. Raman spectra of pure B2O3 confirm the presence of the borate boroxol ring as the main structural units. But different borate units are formed upon modification by calcium carbonate and fructose. Modification by ZnCO3 had a few effects on boron transformation. The chemical shift of 11 B NMR spectra is remaining unchanged upon its addition.
Earth’s Temperature Versus the Sun, Water Vapor and CO2
Authors: Lightfoot H. Douglas 
Published: November 2021

The IPCC report Climate Change 2013: The Physical Science Basis (AR5) has two opposing claims as causes for an increase in the Earth’s temperature in the decades leading up to 2011. In one claim, the cause is an increase in the level of CO2 in the atmosphere. In the second claim, it is an increase in water vapor measured as specific humidity. The purpose of this study is to determine which claim is correct. Several published studies are brought together to form a coherent picture of the interaction between the Sun, water vapor, and the non-condensing greenhouse gases (GHGs), such as carbon dioxide, methane, and nitrous oxide. Back radiation is the sum of radiation back to the Earth from all GHGs. Warming by water vapor measured as specific humidity is approximately 85.5% to 96.5% of the warming by back radiation. The Sun controls Earth’s temperature through specific humidity. The relationship between air temperature and specific humidity is presented in terms of numerical values. Thus, the portion of a temperature caused by specific humidity can be readily estimated.
Employee performance in Bappeda Palembang as perceived through interpersonal communication and work environment
Authors: Arafat Yasir , Darmawati Tri , Mukminin Harridlil 
Published: November 2021

The purpose of this study was to determine the effect of interpersonal communication and the work environment on employee performance in Bappeda Palembang. The sample was 40 employees in Bappeda Palembang. The survey for this study is based on 40 workers as respondents. Data were gathered and organized into a list of questions. The spss for Windows version 22 was used to analyze the outcomes using simple linear regression analysis, multiple linear regression analyses, t-tests, and f-tests. The interpersonal communication has a partially negative and insignificant effect on employee performance, work environment has a positive and significant effect on employee performance. Furthermore, obtained interpersonal communication as well as the workplace environment have a significant impact on employee performance.
Analisis hasil belajar tematik siswa dengan strategi pembelajaran berbasis masalah di sekolah dasar
Authors: Hayati Fitri , Firman Firman , Desyandri Desyandri 
Published: November 2021

<p>Pelaksanaan penelitian ini bertujuan untuk menganalisis peningkatan hasil belajar siswa dalam pembelajaran tematik materi tema ekosistem dengan menerapkan strategi Pembelajaran Berbasis Masalah di Kelas V SD. Penelitian ini merupakan Penelitian Tindakan Kelas (<em>research action</em>). Dalam penelitian ini digunakan gabungan pendekatan kualitatif dan kuantitatif. Subjek dalam penelitian ini adalah seluruh siswa kelas V pada Tahun Ajaran 2019/2020. Perolehan data pada siklus 1 tentang hasil belajar siswa diperoleh skor capaian keseluruhan siswa pada siklus I yaitu 71,8 atau 72%. Perolehan nilai pada siklus II terhadap ranah kognitif dengan rata-rata 83,91, aspek afektif 82,5 dan aspek psikomotor 84,2, rata-rata nilai dari keseluruhan aspek adalah 83,53. Pada siklus II pertemuan II diperoleh nilai rata-rata aspek kognitif 94,19, aspek afektif 93,7, dan aspek psikomotor 93,3 sehingga rata-rata dari ketiga aspek tersebut adalah 93,73. Dengan demikian dapat disimpulkan bahwa hasil belajar siswa dapat meningkat dengan penerapan strategi Pembelajaran Berbasis Masalah (<em>Problem Based Learning)</em> dalam pembelajaran tema ekosistem muatan IPA kelas V SD.</p>
Pengembangan Model Evaluasi Pembelajaran Daring di Sekolah Menengah Kejuruan
Authors: Ali Muttaqin Kholis , Sukardi Sukardi 
Published: November 2021

Penelitian ini bertujuan untuk mengembangkan media evaluasi pembelajaran daring yang efektif dan memudahkan guru dalam penilaian. Metode penelitian yang digunakan adalah Penelitian dan Pengembangan (<em>Research and Development</em>) berdasarkan teori Borg dan Gall. Model ini meliputi 5 tahap. Subjek uji coba dalam penelitian ini adalah orang-orang yang terlibat dalam pelaksanaan pembelajaran daring di SMK Harapan Bangsa Panti Pasaman populasi penelitian berjumlah 25 orang. Hasil penelitian yang diperoleh yaitu: Media Evaluasi pembelajaran daring mata pelajaran Administrasi Infrastruktur Jaringan; Media Evaluasi pembelajaran daring yang valid dengan nilai 0,88 &gt; 0,05; Media Evaluasi pembelajaran daring yang sangat praktis berdasarkan respon guru dengan persentase 87,71%; Media Evaluasi pembelajaran daring yang dinyatakan efektif dapat terlihat dari respon guru dan peserta didik dengan persentase 82,09.
A Covid19 járvány okozta életmódbeli változások hatásai az óvodahasználókra – Óvodapedagógusok és szülők tapasztalatainak áttekintése
Authors: Villányi Györgyné 
Published: November 2021

A Magyar Pedagógiai Társaság Kisgyermeknevelési Szakosztály vezetésével széles körű online felmérés készült 2020. első felében az életbe lépett óvodai bezárásokkal kapcsolatos változások feltérképezése érdekében. A kérdőíveket Bakonyi Anna, Kosztel Krisztina és Villányi Györgyné Jutka készítették. A kérdések tartalmaztak statisztikai adatkérést, online óvodai nevelési tervezést, módszertani és megvalósítási módokat, valamint kapcsolattartási, szervezési lehetőségek feltárását is. Az óvodapedagógusoknak és a szülőknek készült kérdőívekben arra kerestük a választ, hogy hogyan élték meg a karanténban, a virtuális térben működő sajátos helyzetet. Kíváncsiak voltunk arra, milyen tapasztalatokkal, érzésekkel lettek gazdagabbak, vagy éppen szegényebbek, s melyek azok a pozitív tudástartalmak, melyek átvihetők, sőt átviendők későbbre is, a mindennapi óvodai életbe. A Facebookon 2020. május 12-e és június 09-e között kiküldött kérdőíveket 1298 óvodapedagógus töltötte ki . A szülők 2020. május 11-e és június 03-a közötti időszakban válaszoltak a kérdésekre, 681-an.
Effect of Urea with Various Doses on Skeletonema costatum Cell Growth
Authors: Rosa Mila , Siregar Sofyan Husein , Nurrachmi Irvina 
Published: November 2021

This research was conducted in March 2020 at BPBALP Teluk Buo, West Sumatera. This research aimed to determine the best dose for urea usage on S. costatum cell growth. The method used in this research was an experimental method using Completely Randomized Design (CRD) with one factor, which was the various doses of urea fertilizer consisting of five treatments with three replications. Urea various doses used were 0 ppm (control treatment), 40 ppm (treatment A), 60 ppm (treatment B), 80 ppm (treatment C), and 100 ppm (treatment D) totaling 15 treatment units. The tested organism in this research was S. costatum. The container used was a plastic jar with 2 liters capacity. The parameters tested in this research were the maximum cell population density achieved by seven days of maintenance, absolute growth rate, relative growth rate, and specific growth rate. The results showed that the best cell density was found at the treatment D (100 ppm), which was 1,228 x 104 cells / mL and the lowest cell density was in the control treatment (without urea) which was 533 x 104 cells / ml. The results of water quality measurements during the study were still in an adequate range and met the maintenance requirements of S. costatum. The range of water quality parameters were salinity 26-28 ppt, temperature of 25-27oC, and pH of 8.
Determinants of Expressed Breast Milk Awareness Among Mothers in Siddharthnagar Municipality of Rupandehi District, Nepal
Authors: Bhattarai Sigma , Bhusal Chet Kant 
Published: November 2021

Introduction: Expressed breast milk is the practice of squeezing breast milk for the purpose of further use. Infant and young child feeding is very important in promoting healthy growth and development, particularly during the first two years of child’s life. The awareness of mothers regarding expressed breast milk has a direct impact on the life of infants and feeding practices. The study aimed to find out possible determinants of awareness regarding expressed breast milk among mothers.
Methods: Descriptive cross-sectional study was conducted among 255 mothers from January 2020 to May 2020 by using probability simple random sampling technique. A validated and pre-tested semi-structured interview schedule was used. The data was collected data and analysed.
Results: Mean age of mothers was 26 years. 54.1% of the respondents had low awareness regarding expressed breast milk. After adjustment some of the variables such as age of respondents (AOR = 0.03, CI = 0.01 - 0.08, p < 0.001), religion (AOR = 0.36, CI = 0.14 - 0.99, p < 0.001) and educational status of respondents (AOR = 4.40, CI = 1.72 - 11.26, p < 0.001), were significantly associated with level of awareness regarding expressed breast milk.
Conclusions: More than half of the mothers had low awareness regarding expressed breast milk. Age of the respondents, religion and educational status were found to be associated factors that influence mother’s awareness regarding expressed breast milk. It is recommended to concerned authority to conduct awareness program regarding expressed breast milk among mothers.
CICLO PDCA COMO FERRAMENTA DA QUALIDADE PARA A MELHORIA EM SERVIÇOS
Authors: Ricci Gabrieli Marina , Magrini Rosemary Chiuchi , Pandolfi Marcos Alberto Claudio 
Published: November 2021

O objetivo deste artigo foi buscar conhecimento do ciclo PDCA (Plan, Do, Check, Action) aplicado na qualidade de serviços. Para tanto fez-se uma revisão de bibliográfica. Adotou-se a metodologia descritiva onde observou, registrou e analisou. Os dados bibliográficos foram levantados em SCIELO ( Scientific Electronic Library Online), Revistas online: Sociedade & Natureza, USP, FGV, PPGEA/FURG, Ambiente & Sociedade Biblioteca Brasileira de Teses e Dissertações. A pesquisa foi realizada de maio a agosto de 2020, com publicações dos últimos 10 anos e foi estruturada com referencial teórico. Onde foi possível finalizar dizendo que, com o entendimento sobre o PDCA, ficou claro, que a qualidade é conjunto de técnicas e procedimentos administrativos, composta por ferramentas que tem o objetivo auxiliar todos os setores de uma organização e de acordo com literatura o PDCA é uma ferramenta que traz contribuições em vários aspectos para incrementar as discussões sobre da qualidade e, a partir da percepção de que sua estrutura inclui requisitos essenciais como: conceito de qualidade; combinação das abordagens estatística e estratégica.
PENGARUH GOOD CORPORATE GOVERNANCE DAN UKURAN PERUSAHAAN TERHADAP NILAI PERUSAHAAN (Studi Empiris pada Perusahaan Property and Real Estate Tahun 2016-2018)
Authors: Nurma Yuni Hafizah  
Published: November 2021

Penelitian ini memiliki tujuan untuk mengetahui pengaruh Kepemilikan Institusional, Ukuran Dewan Komisaris, Kepemilikan Manajerial, Komisaris Independen, Komite Audit, Ukuran Perusahaan terhadap Nilai Perusahaan. Populasi pada penelitian ini adalah Perusahaan sub sektor Property and Real Estate tahun 2016-2018 yang berjumlah 154 perusahaan. Sampel dipilih dari metode purposive sampling dan mendapatkan sample 141 perusahaan dari beberapa kriteria. Sumber data adalah data sekunder dari website (www.idx.co.id). Riset ini menggunakan analisis regresi linear berganda dengan bantuan program SPSS versi 20. Hasil dari riset ini menunjukan Kepemilikan Institusional, Ukuran Dewan Komisaris, Kepemilikan Manajerial, Komisaris Independen, Komite Audit, Ukuran Perusahaan tidak berpengaruh terhadap Nilai Perusahaan.
Perbanyakan Inokulum Fungi Mikoriza Glomus dan Gigaspora dengan Berbagai Formula Pembawa pada Inang Jagung
Authors: Al Asad Faisal , Rokhminarsi Eny 
Published: November 2021

Mikoriza merupakan fungi yang hidup disekitar perakaran tanaman dan berperan dalam membantu penyerapan unsur hara khususnya unsur P, air dan dapat melindungi akar tanaman dari patogen tanah. Oleh karena itu, cendawan ini dapat digunakan sebagai pupuk hayati. Upaya untuk memperbanyak fungi ini umumnya menggunakan media pembawa zeolit. Penggunaan zeolit sebagai media pembawa mikoriza dinilai belum cukup ekonomis, sehingga perlu dicari alternatif media pembawa yang lebih ekonomis dan mudah didapat seperti arang kayu, batuan fosfat alam (BFA), dan tepung tanah Ultisol. Penelitian ini dilakukan di screen house Fakultas Pertanian Universitas Jenderal Soedirman Purwokerto pada bulan Mei – September 2014 menggunakan Rancangan Acak Kelompok (RAK) berupa percobaan pot yang diulang tiga kali. Faktor pertama yang dicoba adalah genus mikoriza, yaitu : Glomus, Gigaspora, campuran genus mikoriza Glomus dan Gigaspora. Faktor kedua yang dicoba adalah formula pembawa, yaitu : tepung tanah Ultisol lolos saring 121 mesh, tepung tanah Ultisol lolos saringan 121 mesh + BFA (1:1), tepung tanah Ultisol lolos saringan 121 mesh + BFA + arang (1:1:1), dan tepung tanah Ultisol saringan 121 mesh + arang (1:1). Hasil penelitian menunjukkan campuran Glomus dan Gigaspora menghasilkan spora paling banyak pada fase vegetatif tanaman jagung, pertumbuhan tanaman jagung tidak dipengaruhi genus mikoriza tetapi dipengaruhi oleh formula pembawa, formula pembawa terbaik berupa tepung tanah Ultisol + BFA + arang (1:1:1). Pertumbuhan tanaman jagung dan perkembangan mikoriza tidak terpengaruh oleh interaksi antara genus mikoriza dan formula pembawa.
Pengaruh Pemberian Pupuk Kandang Ayam Terhadap Pertumbuhan Dan Hasil Tanaman Sawi Hijau (Brassica Juncea L.)
Authors: Bhoki Marlinda , Jeksen Julianus , Darwin Beja Henderikus 
Published: November 2021

Tujuan penelitian ini adalah untuk mengetahui pengaruh pemberian pupuk kandang ayam terhadap pertumbuhan dan hasil tanaman sawi hijau (Brassica Juncea L.) dan mengetahui dosis optimum pupuk kandang ayam yang dapat memberikan pertumbuhan dan hasil tanaman sawi hijau (Brassica Juncea L.) yang optimal. Metode yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) dengan empat ulangan dan enam perlakuan yaitu, K0 : 0 ton / ha atau tanpa pupuk, K1: 20 ton/ha, K2: 30 ton/ha, K3: 40 ton/ha, K4: 50 ton/ha, K5: 60 ton/ha. Berdasarkan hasil analisis sidik ragam menggunakan rancangan acak kelompok (RAK) hasil penelitian diperoleh bahwa pemberian pupuk kandang ayam tidak berpengaruh nyata terhadap tinggi tanaman, jumlah daun dan berpengaruh sangat nyata terhadap berat segar tan-1 dan berat segar ha-1. Dosis optimum pupuk kandang ayam 60 ton ha-1 merupakan perlakuan terbaik untuk pertumbuhan dan hasil tanaman sawi hijau (Brassica Juncea L.) yang optimal dengan produksi rata-rata berat segar ha-1 mencapai 17,26 ton ha-1.