bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mathematical model of the system “manual vibration shock shaker – fruit branch”
Authors: R. Krupych, , I. Nishchenko, , R. Shevchuk, , S. Krupych, 
Published: January 2020

Purpose. Development of mathematical model of oscillating system “manual vibration shock shaker – fruit branch” for the purpose of theoretical substantiation of the parameters of the shaker.
Methods. The basic positions of mathematics, theoretical mechanics, mathematical modeling, program development and numerical calculations on the PC using methods of constructing mathematical models of functioning of agricultural machines are used.
Results. The paper proposes a mathematical system model “manual vibration shock shaker – fruit branch” of six differential equations describing the motion of five separate masses (the mass of branch and four masses of individual shaker strings) and differential equations of the transverse and rotational motion of the system as whole. The mathematical system model determines the regularity of the motion of all masses, as well as the reactions of the viscals of the oscillatory system to the impact and after the impact that is generated in the shock mechanism. The proposed nonlinear, complex system of differential equations solves the numerical Runge-Kutta method of the fourth order of accuracy.
On the basis of the calculated data the theoretical regularities of change of movement, speed and acceleration of a branch in the place of capture are received, which confirm that in the case of interaction of the cups of the shock mechanism there is blow that is accompanied by an increase in the acceleration of the branch, which is 4–5 times greater than the acceleration of the vibration mode of operation.
Conclusions
1.	The mathematical model of oscillating system “manual vibration shock shaker – fruit branch” is proposed in the form of system of six differential equations that allows to theoretically substantiate the basic modes of work of the manual shaker in the vibration shock mode to provide the agrotechnical necessary extraction completeness.
2.	The received theoretical regularities of change of displacement, speed and acceleration of branch at the place of capture confirm the effectiveness of the vibration shock mode of the shaker. Due to the vibration-shock mode, the acceleration of the branch at the point of transmission of disturbing forces is 4–5 times higher than the acceleration of the vibrational operation mode.
Keywords: manual shakes, vibration shocking process, oscillation oscillators, mathematical model, fruit branch, harvesting.
The substantiation of the technical solution for improving the application of chemical plant protection products using pneumohydraulic sprayers
Authors: V. Panasyuk, 
Published: January 2020

Purpose. Improving the effectiveness of plant protection products when growing crops due to the pneumohydraulic device that ensures their uniform application to the sheet surface.
Methods. Analytical and Experimental.
Results. Laboratory studies of the process of spraying plants with nozzles with a pneumohydraulic system determined the quality indicators of the process with pressure in injection communication 0.4 MPa – droplet coating density of 19–46 pcs/cm2 for the weighted average droplet diameters in the different experimental variants was within 304–543 microns. These indicators were compared with those for the standard, anti-drift and injection nozzles in which the droplet coating density was 23–59 pcs/cm2 and the weighted average droplet diameters were in the range of 350–485 microns.
The obtained analytical dependence of the influence of lateral air flow and air pressure in the pneumohydraulic system on the amount of deposited sprayed liquid.
The annual economic effect from the introduction of this technical device with pneumohydraulic spraying system is 10434 UAH.
Conclusions
1.	The tendencies development technical means of chemical protection plants are determined: the use of sprayers with monodispersed cutting by drops adapted to weather conditions, which allow the operator to work in a wider range of speeds like wind (up to 9 m/s) and the speed of the unit (up to 30 km/h). To improve the quality of spraying, devices with air supply to the nozzles are used to control the dispersion of the spray depending on weather conditions.
2.	It was established that with increasing pressure of air from 0.12 MPa there is a decrease in the diameter of the droplets. And at a pressure more than 0.25 MPa, the cutting is equivalent to a standard small-gap slot sprayer. During researches, it was discovered that the air pressure could be influenced by the dispersion of droplet cutting.
Keywords: pneumatic hydraulic spray, model sketches, laboratory tests, performance indicators, analytical fluidity, fluid pressure, air pressure.
Hubungan Berat Beban Terhadap Tingkat Kejadian Nyeri Punggung Bawah Pada Pekerja Buruh Angkut Pasar Legi Surakarta
Authors: Wahyuni Endang Sri 
Published: January 2020

Background : One part of the working community at high risk for low back pain is transport workers. This study aims to determine whether there is a heavy influence on the burden of the incidence of lower back pain in transport workers in Surakarta Legi Market. The sample of the study was 30 laborers in the Legi Market in Surakarta, all of whom were male and were taken by purposive sampling. The research instrument was a Visual Analogue Scale (VAS) pain scale questionnaire to determine the degree of pain. Methods: This research is a survey research with cross sectional approach. The method of data analysis in the form of Rank Spearman test using the SPSS statistical program. Result: The results of Rank Spearman test obtained a value of 1 0.01% obtained count of +0.752 with a significance of 0,000. This shows that there is a relationship between the weight of the burden of lower back pain experienced by transport workers in Surakarta Legi Market. Conclusion: This study shows that there is a relationship between the weight of the burden of lower back pain experienced by transport workers in Surakarta Legi Market.
Development of a competitive intelligence maturity model: Insights from Moroccan companies
Authors: Oubrich Mourad , Hakmaoui Abdelati , Bierwolf Robert , Haddani Mouna 
Published: January 2020

This paper aims to assess the maturity level of competitive intelligence (CI) in Moroccan companies, so as to improve theirs practices, and to justify their investment in competitive intelligence. To do so, we have identified the maturity model based on a comprehensive review of recent literature. The objectives of this paper are threefold: (1) to determine the major purposes of a CI maturity model (CIMM), (2) to identify the types of CI dimensions and levels of maturity, (3) to evaluate Moroccan companies in terms of CI practice. Our approach is to develop a conceptual framework of the CI maturity model that articulates (1) dimensions of CI, and (2) maturity levels of CI. We note that little attention has been given in previous research to how CI is actually conducted in Moroccan companies. For this purpose, an empirical study was conducted. The results discuss various perspectives and insights from a competitive intelligence maturity model point of view in the Moroccan context. The results show that the majority of the Moroccan companies are in an early stage of the CI levels, where the CI practice is only to employ environment scanning and the competition in the business environment is not intense. We also note the absence of CI structure at this level. Most of these Moroccan companies are not able to cope with changes in the business environment. The CI systems and processes are released on an irregular basis. This study is the first to investigate the Competitive Intelligence Maturity Model (CIMM) in the Moroccan context. The findings of this research show that there are six CI dimensions (CI culture of an organization; CI deliverables; CI sourcing; CI cycle; CI investment in terms of resources; CI users and CI application) that should be taken into account in CI implementation with regard to the CI level (early, mid, world class).
PERBANDINGAN KINERJA KEUANGAN SEBELUM DAN SESUDAH AKUISISI PADA PT FIRST MEDIA, Tbk YANG TERDAFTAR DI BURSA EFEK INDONESIA
Authors: Safitri Nur , Supitriyani Supitriyani , Putri Debi Eka , Azwar Khairul 
Published: January 2020

Tujuan dari penelitian ini adalah untuk mengetahui gambaran kinerja keuangan sebelum dan sesudah akuisisi pada PT First Media, Tbk yang terdaftar di Bursa Efek Indonesia dan untuk mengetahui faktor-faktor yang menyebabkan perbedaan kinerja keuangan sebelum dan sesudah akuisisi pada PT First Media, Tbk yang terdaftar di Bursa Efek Indonesia. Penelitian ini dilakukan dengan menggunakan metode analisis deskriptif kualitatif, analisis komparatif dan analisis induktif. Jenis data yang digunakan dalam penelitian ini adalah data kualitatif dan kuantitatif. Sumber data yang digunakan adalah data sekunder. Hasil penelitian ini disimpulkan bahwa Kinerja keuangan perusahaan sebelum akuisisi ditinjau dari Current Ratio (CR), Debt Ratio (DR), dan Debt to Equity Ratio (DER) berfluktuasi dan cenderung menurun, sedangkan nilai Total Asset Turnover (TATO) berfluktuasi dan cenderung meningkat, untuk nilai Return on Asset (ROA), Return on Equity (ROE), dan Net Profit Margin (NPM) cenderung meningkat. Kinerja keuangan perusahaan sesudah akuisisi ditinjau dari Current Ratio (CR) berfluktuasi dan cenderung menurun, sedangkan nilai Debt Ratio (DR) dan Debt to Equity Ratio (DER) cenderung meningkat, untuk nilai Total Asset Turnover (TATO) mengalami fluktuasi dan cenderung meningkat. Sedangkan nilai Return on Asset (ROA), Return on Equity (ROE), dan Net Profit Margin (NPM) mengalami penurunan. Faktor kas dan setara kas, piutang kepada pihak ketiga, investasi pada entitas asosiasi, aset tak berwujud, aset pajak tangguhan, utang usaha kepada pihak ketiga, utang bank dan lembaga keuangan jangka pendek, utang bank dan lembaga keuangan jangka panjang, beban akrual, saldo laba, beban layanan, beban keuangan, dan pendapatan menyebabkan perbedaan kinerja keuangan sebelum dan sesudah akuisisi.Kata kunci: Akuisisi, Kinerja Keuangan
PENGARUH KUALITAS PELAYANAN DAN HARGA TERHADAP KEPUASAN KONSUMEN DENGAN BRAND IMAGE SEBAGAI VARIABEL MODERATING PADA TOKO SINAR BINTANG PHOTO PEMATANGSIANTAR
Authors: Caniago Chandra , Siregar Robert Tua , Julyanthry Julyanthry , Pakpahan Grace Endang 
Published: January 2020

Implementasi kepuasan konsumen sebaiknya didukung beberapa unsur pelengkapnya agar dapat memenuhi kriteria kepuasan sendiri. Untuk memenuhi unsur kepuasan maka diperlukan konsistensi kualitas pelayanan dan harga yang diberikan kepada konsumen. Tujuan penelitian ini adalah untuk mengetahui gambaran dan pengaruh kualitas pelayanan dan harga terhadap kepuasan konsumen, untuk mengetahui gambaran dan pengaruh kualitas pelayanan dan harga terhadap kepuasan konsumen yang di moderasi brand image. penelitian ini menggunakan desain penelitian kepustakaan dan lapangan. Jenis data yang digunakan adalah data kualitatif dan kuantitatif yang bersumber dari data primer dan sekunder. Hasil penelitian ini menunjukkan kualitas pelayanan sudah baik, harga sudah baik, brand image sudah baik, kepuasan konsumen sudah puas. Hasil analisis regresi linier berganda Ŷ= 11,460 + 0,485 X1 + 0,165 X2, artinya terdapat pengaruh positif antara kualitas pelayanan dan harga terhadap kepuasan konsumen pada Toko Sinar Bintang Photo Pematangsiantar. Hasil analisis regresi dengan metode selisih mutlak, Ŷ= 40,465 + 2,324 X1 + 1,408 X2 +1,510X3 + 1,679 [X1-X3] + 1,204 [X2-X3] artinya brand image mampu memperkuat hubungan kualitas pelayanan dan harga terhadap kepuasan konsumen. konsumen, kemudian tinggi rendahnya kepuasan konsumen dijelaskan oleh kualitas pelayanan dan harga. Hipotesis H0 ditolak, artinya kualitas pelayanan dan harga berpengaruh positif dan signifikan terhadap kepuasan konsumen Toko Sinar Bintang Photo Pematangsiantar. Selanjutnya brand image mampu memoderasi hubungan kualitas pelayanan dan harga terhadap kepuasan konsumen secara signifikan.
IMPLEMENTASI STRATEGI PEMBELAJARAN BERCERITA DI KELOMPOK B TK PATRIOTIK KECAMATAN SUWAWA KABUPATEN BONE BOLANGO
Authors: Djuko Rapi Us. 
Published: January 2020

Sebelum melaksanakan kegiatan bercerita, guru terlebih dahulu menetapkan rancangan prosedur/langkah-langkah yang harus dilalui dalam bercerita, berikut ini akan diuraikan langkah-langkah yang harus ditempuh oleh guru dalam menerapkan kegiatan bercerita dikelas. Meliputi : (1) menetapkan tujuan dan tema cerita; (2) menetapkan bentuk bercerita yang dipilih; (3) menetapkan bahan dan yang digunakan dalam kegiatan bercerita; (4) menetapkan rancangan langkah-langkah kegiatan bercerita, antara lain mengkomunikasikan tujuan dan tema cerita, mengatur tempat duduk kegiatan pembukaan, pengembangan cerita, menetapkan tehnik bertutur yang akan digunakan, dan mengajukan pertanyaan-pertanyaan menyangkut isi cerita; (5) menetapkan rancangan penilaian kegiatan bercerita. Rancangan penilaian ini mengacu pada rancangan pelaksanaan kegiatan, serta tujuan dan tema yang telah dipilih sebelumnya, tanggapan dan jawaban mereka merupakan petunjuk atas pemahaman mereka tentang isi cerita. Kelima langkah kegiatan bercerita ini telah dilaksanakan oleh guru di kelompok B TK Patriotik dalam mengembangkan kemampuan berbahasa khususnya bercerita, dengan memanfaatkan buku-buku di sekolah sebagai media bercerita pada anak. Disamping itu media gambar juga paling efektif sebagai media penyampai cerita pada anak.
Simultaneous Magnetic Polar Cap Heating during a Flaring Episode from the Magnetar 1RXS J170849.0–400910
Authors: Younes George , Baring Matthew G. , Kouveliotou Chryssa , Wadiasingh Zorawar , Huppenkothen Daniela , Harding Alice K. 
Published: January 2020

Abstract
During a pointed 2018 NuSTAR observation, we detected a flare with a 2.2 hr duration from the magnetar 1RXS J170849.0−400910. The flare, which rose in ∼25 s to a maximum flux 6 times larger than the persistent emission, is highly pulsed with an rms pulsed fraction of 53%. The pulse profile shape consists of two peaks separated by half a rotational cycle, with a peak flux ratio of ∼2. The flare spectrum is thermal with an average temperature of 2.1 keV. Phase-resolved spectroscopy shows that the two peaks possess the same temperature, but differ in size. These observational results, along with simple light curve modeling, indicate that two identical antipodal spots, likely the magnetic poles, are heated simultaneously at the onset of the flare and for its full duration. Hence, the origin of the flare has to be connected to the global dipolar structure of the magnetar. This might best be achieved externally, via twists to closed magnetospheric dipolar field lines seeding bombardment of polar footpoint locales with energetic pairs. Approximately 1.86 hr following the onset of the flare, a short burst with its own 3 minutes thermal tail occurred. The burst tail is also pulsating at the spin period of the source and phase-aligned with the flare profile, implying an intimate connection between the two phenomena. The burst may have been caused by a magnetic reconnection event in the same twisted dipolar field lines anchored to the surface hot spots, with subsequent return currents supplying extra heat to these polar caps.
Abrupt Shrinking of Solar Corona in the Late 1990s
Authors: Virtanen Ilpo I. , Koskela Jennimari S. , Mursula Kalevi 
Published: January 2020

Abstract
We derive the longest uniform record of rotational intensities solar coronal magnetic field since 1968 and compare it with the heliospheric magnetic field (HMF) observed at the Earth. We scale the Mount Wilson Observatory and Wilcox Solar Observatory observations of the photospheric magnetic field to the level of the Synoptic Optical Long-term Investigations of the Sun/Vector Spectro Magnetograph and apply the potential field source surface model to calculate the coronal magnetic field. We find that the evolution of the coronal magnetic field during the last 50 yr agrees with the HMF observed at the Earth only if the effective coronal size, the distance of the coronal source surface of the HMF, is allowed to change in time. We calculate the optimum source surface distance for each rotation and find that it experienced an abrupt decrease in the late 1990s. The effective volume of the solar corona shrunk to less than one half during a short period of only a few years. We note that this abrupt shrinking coincides with other changes in solar magnetic fields that are likely related to the decrease of the overall solar activity, i.e., the demise of the Grand Modern Maximum.
La médiation interculturelle : une approche pour soutenir la relation parents immigrants-orthophonistes au niveau primaire
Authors: Beauregard France , Borri-Anadon Corina 
Published: January 2020

À partir de deux études (Bergeron et Beauregard, 2018 ; Borri-Anadon, 2014), l’une portant sur les parents immigrants et l’autre sur les orthophonistes travaillant en milieu scolaire multiethnique, l’article documente les perceptions de ces deux groupes quant aux pratiques de chacun à l’égard de l’enfant-élève issu de l’immigration ayant des difficultés de langage. En mobilisant le cadre théorique de l’approche interculturelle (Cohen-Emerique, 2015), les convergences et les divergences de ces perceptions sont mises en évidence. Cette mise en relation permet d’aborder la médiation interculturelle, en tant que processus de réflexion sur soi, sur l’autre et sur leurs interactions, comme étant susceptible de favoriser, par la connaissance et la reconnaissance mutuelles de leur expertise, la réussite éducative de l’enfant-élève.
Aux sources de la création. Racines et métamorphoses dans l’œuvre de Graça Morais
Authors: Sesé-Leger Sylvie 
Published: January 2020

Qui peut déchiffrer un tableau, lui donner un sens, révéler le secret de sa fabrication ? L’œuvre de Graça Morais est ancrée dans la terre, dans sa terre natale, de la région Trás-os-Montes, mais derrière les montagnes, au-delà, s’étend l’univers des anges bizarres, celui de l’imaginaire de l’artiste.
Research in Patients With Heart Failure: Challenges in Recruitment
Authors: Pressler Susan J. , Subramanian Usha , Shaw Rose Mary , Meyer Leslie E. , Stoudemire Klarisa , Gradus-Pizlo Irmina 
Published: January 2020

Background Published studies of patients with heart failure may not include details about the challenges in the recruitment process.
Objectives To describe the recruitment process during the first 18 months of a study being conducted to evaluate cognitive deficits in patients with chronic heart failure.
Methods Details of the recruitment process are described for 2 clinic sites.
Results A total of 4027 echocardiograms were screened at site 1 to evaluate eligibility. Of the 161 patients eligible, 61 (38%) were invited to participate, and 29 of the 61 (48%) completed the study. At site 2, four hundred thirty-seven medical records of patients were screened, resulting in 163 eligible patients (37%). The staff invited 70 of the 163 patients (43%) to participate, and 52 of the 70 (74%) completed the study. The refusal rate was 23% at site 1 and 21% at site 2.
Conclusions Successful recruitment in studies involving patients with heart failure often requires screening of a large group of patients.
Abrogated AID Function Prolongs Survival and Diminishes Renal Pathology in the BXSB Mouse Model of Systemic Lupus Erythematosus
Authors: Zhu Jing , Hay Alayna N. , Potter Ashley A. , Richwine Madison W. , Sproule Thomas , LeRoith Tanya , Wilson John , Hasham Muneer G. , Roopenian Derry C. , Leeth Caroline M. 
Published: January 2020

Abstract
Almost a decade has passed since the approval of belimumab, an mAb directed against B lymphocyte stimulation and the first targeted therapy approved for systemic lupus erythematous (SLE) in over 50 y. Although well tolerated, the efficacy of belimumab remains limited and is not labeled for patients suffering from nephritis, the leading cause of patient mortality. We sought to explore alternative targets of autoreactive B lymphocytes through manipulation of affinity maturation. The BXSB/MpJ mouse, a well-established model of human SLE, develops elevated antinuclear Abs and immune complex–mediated nephritis along with other manifestations of SLE-like disease. To limit interfering with critical background genetics, we used CRISPR-Cas9 to disrupt activation-induced cytidine deaminase (AID; Aicda) directly in BXSB zygotes. Homozygous null mice demonstrated significantly prolonged survival compared with wild-type. Although mice continued to develop plasma cells, splenic follicular structure was restored, and renal pathology was reduced. Mice developed expanded germinal center B lymphocyte populations as in other models of AID deficiency as well as increased populations of CD73+ B lymphocytes. Treatment with the small molecule inhibitor of RAD51, 4,4′-diisothiocyano-2,2′-stilbenedisulfonic acid, resulted in minimal changes in disease markers in BXSB mice. The prolonged survival in AID-deficient BXSB mice appears attributed primarily to the reduced renal pathology, warranting further exploration, as current therapeutics targeting lupus nephritis are limited and, thus, in great demand.
Endogenous IL-33 and Its Autoamplification of IL-33/ST2 Pathway Play an Important Role in Asthma
Authors: Magat Jenna M. , Thomas Joanna L. , Dumouchel Justin P. , Murray Fiona , Li Willis X. , Li Jinghong 
Published: January 2020

Abstract
IL-33 and its receptor ST2 are contributing factors to airway inflammation and asthma exacerbation. The IL-33/ST2 signaling pathway is involved in both the onset and the acute exacerbations of asthma. In this study, we address the role of endogenous IL-33 and its autoamplification of the IL-33/ST2 pathway in Ag-dependent and Ag-independent asthma-like models. Wild-type, IL-33 knockout, ST2 knockout mice were either intratracheally administrated with 500 ng of rIL-33 per day for four consecutive days or were sensitized and challenged with OVA over 21 d. In wild-type mice, IL-33 or OVA induced similar airway hyperresponsiveness and eosinophilic airway inflammation. IL-33 induced its own mRNA and ST2L mRNA expression in the lung. IL-33 autoamplified itself and ST2 protein expression in airway epithelial cells. OVA also induced IL-33 and ST2 protein expression. In IL-33 knockout mice, the IL-33– and OVA-induced airway hyperresponsiveness and eosinophilic airway inflammation were both significantly attenuated, whereas IL-33–induced ST2L mRNA expression was preserved, although no autoamplification of IL-33/ST2 pathway was observed. In ST2 knockout mice, IL-33 and OVA induced airway hyperresponsiveness and eosinophilic airway inflammation were both completely diminished, and no IL-33/ST2 autoamplification was observed. These results suggest that endogenous IL-33 and its autoamplification of IL-33/ST2 pathway play an important role in the induction of asthma-like phenotype. Thus an intact IL-33/ST2 pathway is necessary for both Ag-dependent and Ag-independent asthma-like mouse models.