bluuebunny/crossref_metadata_2025_split huggingface dataset:
Isolation of phosphate solubilizing bacteria from root rhizosphere to supplement biofertilizer
Authors: NGUYEN Thi Thuy , LUU The Anh , DO Quang Trung 
Published: April 2022

In soil, a large amount of supplemented phosphorus (P) are immediately transferred into insoluble forms and only 0.1 % of them is available for plant uptake. Therefore, exploring naturally occurring phosphate-solubilizing microorganisms is an essential activity to exploit them in reducing mineral phosphorus added to agricultural soils. In this study, we screened and isolated 7 bacteria that solubilized phosphate at different phosphate solubilization indexes, ranging from 4.2 to 226.1. Of them, the most efficient isolate is PSB31, which solubilized tri calcium phosphate (Ca3(PO4)2 at a rate of 962 mg l-1 and molecularly identified as Bacillus sp. (in: Bacteria) strain IMAU61039. This bacterial strain generated the low supernatant pH and the phosphatase, which are involved in the phosphorus solubilization mechanism. Furthermore, greenhouse experiments showed that tomato seedlings grown in PSB31-inoculated soil contained higher P amount and had much higher biomass than those plants grown in soil without PSB31 addition. These results suggest that the PSB31 strain has potential use as a biofertilizer.
Networking and Collaboration as an Influencer on Sustainability of Public Borehole Water Projects in Kitui County-Kenya
Authors: Musau Onesmus , Nyonje Raphael Ondeko , Mulwa Angeline 
Published: April 2022

The study focuses on networking and collaboration on sustainability of public boreholes water projects. The following was the objective; to assess the extent to which learning from networking and collaboration influences the sustainability of public borehole water projects in Kitui County-Kenya. The study tested the null hypothesis to establish whether the association among the study variable was significant. The target population was 366234 project beneficiaries, 396 chairpersons and 8 undertakers. A sample was drawn from this population using a formula adding to 383 project beneficiaries, 167 chairpersons and 8 undertakers. With R2=0.267, r=0.811, F(2,506) =30.41 at p=0.000, the hypothesis that there is no significant relationship between capacity building initiatives and sustainability of public borehole water projects in Kitui County-Kenya is therefore rejected. The findings from the study are expected to create a strong basis for enhancing future public borehole water project planning, designing, implementation, and management and also provided vital information for national government, county government, NGO’s, project managers, local communities and project implementers which was useful for initiating sustainable projects.
Akteur*innenzentrierte Spracherfahrungen und die Bedeutung von Kontext in fremdkultureller Kommunikation und Interaktion
Authors: Henkel Christina 
Published: April 2022

Zusammenfassung
Der vorliegende Artikel beschäftigt sich mit den Erfahrungen und Wahrnehmungen deutscher Student*innen während ihres Auslandsaufenthaltes in China zum eigenen Spracherwerb, der Bedeutung von Sprache für sie und ihren Analysen zur Kommunikation sowie deren erlebter Grenzen. Aus der Perspektive der Akteur*innen besitzt Sprache eine multidimensionale Bedeutung für den Auslandsaufenthalt. Der Spracherwerb macht einen Großteil der Motivation für den Chinaaufenthalt aus. Dies führt zu Erwartungen, die im Laufe des Aufenthaltes überprüft und neu justiert werden müssen. Dabei werden den deutschen Student*innen Grenzen der Kommunikation bewusst, die über die reine Sprachkompetenz hinausgehen und auch nicht durch die Drittsprache Englisch aufgefangen werden können. Dazu wird das Verhältnis von Sprache und Kontext diskutiert. Das Konzept des Blickwinkels aus der Interkulturellen Germanistik (auch IKG) wird von den Akteur*innen als notwendiges Referentialsystem artikuliert. Es wird sichtbar gemacht, inwieweit Begriffe der Interkulturellen Germanistik zur Erklärung von Interaktion und der Verstehens- beziehungsweise Erwerbsprozesse von Interkultureller Kompetenz beitragen können. Gleichzeitig werden diese Begriffe als Deutungswerkzeuge der Akteur*innen aufgedeckt.
Thermodynamical Foundations of Closed Discrete Non-Equilibrium Systems
Authors: Muschik Wolfgang 
Published: April 2022

Abstract
Some tools of Non-Equilibrium Thermodynamics of closed discrete systems are considered: the non-equilibrium state space, the non-equilibrium entropy as a state function and its connection with the entropy production, Clausius’ inequality, equilibrium and accompanying processes. Why can the thermostatic temperature be used successfully in thermal engineering even in cases of non-equilibrium?
Viral infections in stillbirth: a contribution underestimated in Mexico?
Authors: Herrera-Salazar Alma , Flores-Hernández Laura A. , Valdespino-Vázquez M.Y. , Fonseca-Coronado Salvador , Moreno-Verduzco Elsa Romelia 
Published: April 2022

Abstract

Objectives
To analyze the role of viral infections as etiology of stillbirths in Mexico and their epidemiological impact in the context of the global Every Newborn Initiative.

Methods
A comprehensive literature search was performed in electronic databases related to stillbirth and viral infections published prior to January 19th 2021. Stillbirths records and causes from National Mexican databases, during 2008–2019 period were also computed.

Results
Only two articles with a direct relationship between viral infection and stillbirth were found, and one article with an indirect serological association was identified. During the analyzed period there were 198,076 stillbirths, with a National stillbirth rate (SBR) ranging from 6.9 to 6.5 between 2008 and 2014, with a subsequent increase to reach 7.7 in 2019. Only 19 cases were attributed to viral causes and a specific virus was identified in 11. The main causes of early stillbirth were a fetus with premature rupture of membranes and light for gestational age, and for late stillbirth these were fetus affected by oligohydramnios and slow fetal growth. The percentage classified as unspecified deaths varied from 34.4-41.9%.

Conclusions
In Mexico, there has been an increase in SBR during last years, but the goals of the Every Newborn Initiative is met. More than 14,500 stillbirths with at least 5,100 unspecified cases have been reported per year, and only 11 cases were attributable to a specific virus, highlighting the serious underestimation of cases and the need of implementation of routine viral diagnosis methods to improve the care of this global health problem.
On certain functional equation in prime rings
Authors: Fošner Maja , Marcen Benjamin , Vukman Joso 
Published: April 2022

Abstract
The purpose of this paper is to prove the following result. Let

R

R

be prime ring of characteristic different from two and three, and let

F
:
R
→
R

F:R\to R

be an additive mapping satisfying the relation

F

(

x

3

)

=
F

(

x

2

)

x
−
x
F

(

x

)

x
+
x
F

(

x

2

)

F\left({x}^{3})=F\left({x}^{2})x-xF\left(x)x+xF\left({x}^{2})

for all

x
∈
R

x\in R

. In this case,

F

F

is of the form

4
F

(

x

)

=
D

(

x

)

+
q
x
+
x
q

4F\left(x)=D\left(x)+qx+xq

for all

x
∈
R

x\in R

, where

D
:
R
→
R

D:R\to R

is a derivation, and

q

q

is some fixed element from the symmetric Martindale ring of quotients of

R

R

.
Crystal structure of (E)-1-(4-(3,5-dimethoxystyryl)phenyl)-7-ethylheptanedioate, C25H30O6
Authors: Zhang Lilei , Hu Jiamin , Qiao Yumeng 
Published: April 2022

Abstract
C25H30O6, orthorhombic, Pna21 (no. 33), a = 7.556(2) Å, b = 37.198(12) Å, c = 8.113(2) Å, V = 2280.2(11) Å3, Z = 4, R

gt
(F) = 0.0610, wR

ref
(F
2) = 0.1634, T = 170 K.
Performance and kinetics of a fluidized bed anaerobic reactor treating distillery effluent
Authors: Apollo Seth , Aoyi Ochieng 
Published: April 2022

Abstract
The kinetic analysis of an anaerobic fluidized bed bioreactor treating distillery effluent was carried out. Natural zeolite was used as biomass carrier at various organic loading rates and hydraulic retention times (HRT). The degradation followed first order kinetics and fitted Michaelis–Menten kinetic model for substrate utilization. The kinetic analysis showed that 9% of the TOC was nonbiodegradable which corresponds to about 14% COD. The non-biodegradable component was responsible for the dark-brown color of the distillery effluent and therefore there was a need for employing a post-treatment technology for their removal. Biomass yield was found to be 0.4658 g/g while endogenic microorganisms decay coefficient was 0.0293, which suggested that there was a need to install a sludge handling unit prior to post-treatment. The maximum micro-organisms’ growth rate was found to be 0.136 d−1 while the specific growth rate of the micro-organisms reduced with an increase in HRT at constant feed concentration. The specific substrate utilization rate was found to increase linearly with an increase in the ration of food to micro-organisms and the mean cell residence time was found to be at least 2.5 times the HRT due to application of zeolite as microbial support in the reactor.
Nonlinear mixed-effects models for HIV viral load trajectories before and after antiretroviral therapy interruption, incorporating left censoring
Authors: Gao Sihaoyu , Wu Lang , Yu Tingting , Kouyos Roger , Günthard Huldrych F. , Wang Rui 
Published: April 2022

Abstract

Objectives
Characterizing features of the viral rebound trajectories and identifying host, virological, and immunological factors that are predictive of the viral rebound trajectories are central to HIV cure research. We investigate if key features of HIV viral decay and CD4 trajectories during antiretroviral therapy (ART) are associated with characteristics of HIV viral rebound following ART interruption.

Methods
Nonlinear mixed effect (NLME) models are used to model viral load trajectories before and following ART interruption, incorporating left censoring due to lower detection limits of viral load assays. A stochastic approximation EM (SAEM) algorithm is used for parameter estimation and inference. To circumvent the computational intensity associated with maximizing the joint likelihood, we propose an easy-to-implement three-step method.

Results
We evaluate the performance of the proposed method through simulation studies and apply it to data from the Zurich Primary HIV Infection Study. We find that some key features of viral load during ART (e.g., viral decay rate) are significantly associated with important characteristics of viral rebound following ART interruption (e.g., viral set point).

Conclusions
The proposed three-step method works well. We have shown that key features of viral decay during ART may be associated with important features of viral rebound following ART interruption.
Experimental and numerical investigation on the effect of turboprop engine exhaust gas impingement on pusher aircraft
Authors: Vinay C. A. , Narayanappa Kumar Gottegere , Giridhara Babu Y. 
Published: April 2022

Abstract
Turboprop engines require an exhaust nozzle or stub to duct the engine exhaust flue gas outboard of the aircraft. The design of these exhaust stubs are dictated primarily by the aircraft’s configuration. In pusher aircraft, the exhaust stubs are designed to minimize the exposure of the flue gases from the engine exhaust on the propeller blades and fuselage. A fluid-thermal-structure coupling analysis is performed to understand the thermal effects of the engine exhaust jet flow on the thermo-mechanical behavior of pusher configured light transport aircraft propeller and structure. The steady thermal flow field of the aircraft with forward and reverse thrust, in which propeller blade angle variations were analyzed for different aircraft speed. The present work investigates a three-dimensional analysis of flow around the nacelle-airframe and the effect of exhaust flue gas impingement on the propeller blade surface. Based on the insights from the numerical results, the designed exhaust duct was integrated on the aircraft and carried out ground static and flight testing for various flight operating conditions in which propeller blade and fuselage surface temperature were measured. Numerical and experimental results are compared and validated for certain flight conditions and found satisfactory.
Preantral follicle population and distribution in the horse ovary
Authors: Hyde Kendall A , Aguiar Francisco L N , Alves Benner G , Alves Kele A , Gastal Gustavo D A , Gastal Melba O , Gastal Eduardo L 
Published: April 2022

Characterization of the ovarian preantral follicle population is a necessary step to improve understanding of folliculogenesis and ovarian physiology. Therefore, in the present study, the preantral follicle population in the equine ovary in young and old mares was investigated according to follicular morphology, follicular class, distance from the geometric center using ovarian maps, and follicular density within ovarian portions (lateral vs intermediary) and regions (dorsal vs ventral). Ovaries were collected from an abattoir and histologically processed for evaluation, and the follicle population was calculated. Overall, in the current detailed study, a higher preantral follicle population per mare ovary (mean: 82,206 ± 50,022; range: 1477 to 773,091) than originally reported was identified. Additionally, a mare age effect was observed in the follicle population (young: 152,664 vs old: 11,750) and the spatial distribution of morphologically normal and abnormal follicles and the density and population of follicular classes. These results demonstrate that, in addition to the preantral follicle population in the mare ovary being comparable to that of other species, the location and spatial distribution of these follicles is dynamic and varies depending on mare age and follicle status (i.e. morphology and developmental stage). The characterization of the distribution and population of preantral follicles in the mare ovary provided by this study can potentially aid in improving reproductive studies and assisted reproductive techniques and may expand the understanding of mechanisms involving ovarian plasticity and follicular migration.

Lay summary
Knowledge of the distribution and population of immature eggs within follicles (preantral follicles) in the ovaries of mares can improve approaches to assisted reproductive techniques and fertility preservation. As the existing research on horse preantral follicle population was focused solely on large follicles, the present study provides an updated investigation of small and large preantral follicles in the mare, showing that the population is similar to those in other species. This study also shows that the way these follicles are distributed in the ovary varies depending on age and follicle characteristics. Results from this study may help to highlight which areas of the mare ovary should be looked at to find samples of good-quality follicles.
PERTUNJUKAN TEATER DULMULUK DI TVRI SUMATERA SELATAN: SEBUAH PENDEKATAN KOMUNIKASI BUDAYA
Authors: Walidah Anafatun 
Published: April 2022

Pertunjukan teater Dulmuluk merupakan sebuah ekspresi komunikasi budaya. Sebagai Pewarisan budaya, secara internal khususnya di TVRI Sumatera Selatan Teater Dulmuluk juga sebagai kebanggaan milik bangsa yang menampilkan kesenian tradisional kota Palembang. Kesenian tradisional Dulmuluk ini harus menjadi perhatian besar terhadap fungsi teater sebagai media pewarisan budaya dan dilestarikan oleh setiap elemen masyarakat. Penelitian ini ingin menjawab, Mengapa pertunjukan teater Dulmuluk tetap bertahan di TVRI Sumatera Selatan? Bagaimana pesan moral Islam dan tanggapan masyarakat terhadap pertunjukan teater Dulmuluk? Penelitian ini menggunakan teori dramaturgi Erving Goffman, dan pendekatan kualitatif. Teknik pengumpulan data melalui wawancara, dokumentasi dan observasi. Hasil penelitian ini pertunjukan teater Dulmuluk masih dipertahankan dan ditampilkan di TVRI Sumatera Selatan sebagai nilai fondasi budaya bangsa, syiar agama Islam lewat seni dan salah satu budaya lakon sesuai dengan cerita daerah. Kata Kunci: Dramaturgi, Pesan Moral, TVRI Sumatera Selatan, Teater Dulmuluk, Komunikasi Budaya.
HIERARKI PENGARUH PEMBERITAAN PINDAH KEYAKINAN DEDDY CORBUZIER DI DETIKCOM
Authors: Alfafa Iskandar Silma Rahmah 
Published: April 2022

Penelitian ini berbentuk penelitian kualitatif dengan memakai jenis metode penelitian studi kasus instrinsic caseyang bertujuan melihat bagaimana faktor internal dan faktor eksternal memengaruhi sebuah isi berita. Peneliti menggunakan pemberitaan pindah keyakinan pindah keyakinan Deddy Corbuzier (21 Juni-21 Agustus 2019) di Detikcom sebagai objek penelitian. Data pemberitaan yang diperoleh dilengkapi dengan wawancara para reporter detikHot, kemudian peneliti menganalisis data dengan teori hierarki pengaruh yang diperkenalkan oleh Pamela J Shoemaker dan Stephen D Reese yang memiliki lima tingkatan level, yaitu level pekerja media, level kerutinan media, level organisasi media, level ekstra media, dan level ideologi media. Hasil dari penelitian ini menunjukkan bahwa dari lima level hierarki pengaruh, tiga level sangat memengaruhi, yaitu level individu, rutinitas media dan ideologi media.
PERBEDAAN KONSEP PERJODOHAN ISLAM DAN REALITY TV DALAM PERSPEKTIF GLOBALISASI MEDIA
Authors: Yuliarti Dwi Arini , Hermansah Tantan 
Published: April 2022

Program Take Me Out Indonesia merupakan program adaptasi yang telah mengudara di Indonesia sejak tahun 2009 dan menjadi salah satu program reality show tersukses di Indonesia. Namun, disadari atau tidak, kehadiran program tersebut turut pula membawa ancaman hegemoni budaya Barat yang menggerus nilai-nilai budaya Islam. Di era globalisasi ini, perjodohan dijadikan komoditi yang dijual ke ranah publik melalui sebuah tayangan. Tidak sedikit dari adegan yang ditampilkan pada program ini mengesampingkan hukum syara dan berpotensi mendegradasi identitas nilai Islam. Metode penelitian menggunakan studi pustaka, wawancara dan dokumentasi. Hasil penelitian menunjukkan bahwa globalisasi pada sektor media telah memberikan konsekuensi yang amat besar. Maraknya program adaptasi asing tidak lepas dari respon baik dari masyarakat. Perolehan rating dan share sebuah stasiun tv masih menjadi target utama pencapaian keuntungan perusahaan. Meskipun, apa yang dipertontonkan tidak sesuai dengan hukum Islam dan cenderung keluar dari garis batas hukum Islam. Penerapan komunikasi Islam menjadi kunci penting dakwah dalam menghadapi globalisasi Barat. Kata kunci: Globalisasi, Program Adaptasi, Media, Islam.
Temperature evolution in heated premises and external boundary wall with dynamic control of heating systems
Authors: Garbai László , Pacza Gergely 
Published: April 2022

Abstract
The study presents a mathematical model for building heating control. The buildings are connected to district heating or to central heating. The task of the heating control is to maintain a preset constant indoor air temperature. Control disturbance is caused by external meteorological conditions, firstly by outdoor air temperature. The control action can be the change in heat transfer capacity of the radiators, whereby the indoor air temperature can be commanded back to the present value to offset the effect of the disturbance. Just the control can be a follower or of predictive type. The expected indoor air temperature can be calculated from the energy balances. These are composed of differential equations, describing dynamic equilibrium of heat transfer through the external walls, as well as heat storage in the walls and indoor air. Type of differential equations is linear, inhomogeneous, of first or second order.
Solution of the differential equation results in describing the change in indoor air temperature in time as a function of outdoor air temperature. Further on, the equation determines the function of the necessary heating capacity to keep the indoor air temperature constant. By the model several heating programs can be evaluated. The physical model is shown in Fig. 1. Intermediate variable is the average temperature of the external walls. Heat conduction and convection through the walls is calculated by the difference of the indoor air temperature and of the average wall temperature by using relevant R
1 and R
2 heat resistance factors. The model is adequate when the heat transport within the building sections is neglectable, and the thermodynamic and heat transfer characteristics of the walls are identical. Thereby the model describes the heat balance of representative premises, but the results can be transferred to similar other premises, too.
The Influence of a Transitional Stress Regime on the Source Characteristics of Induced Seismicity and Fault Activation: Evidence from the 30 November 2018 Fort St. John ML 4.5 Induced Earthquake Sequence
Authors: Salvage Rebecca O. , Eaton David W. 
Published: April 2022

ABSTRACTOn 30 November 2018, a sequence of seismicity including a felt (ML∼4.5) induced earthquake occurred ∼16 km southwest of Fort St. John, British Columbia. Using a local seismograph network around the epicentral region, we identified &gt; 560 seismic events over a two-week period, incorporating two mainshock events within a 45 min time interval, both with ML&gt;4.3. This seismicity occurred close in location and depth to ongoing hydraulic fracturing operations. Using previously unpublished data, our analysis suggests that events, including the largest mainshock, occurred at the interval of fluid injection, which is shallower than previously reported. The events showed a mix of reverse, oblique normal, and strike-slip mechanisms within a well-defined structural corridor that forms the southern margin of the Fort St. John graben. The two mainshock events reveal opposing mechanisms: one as a reverse (re)activation of a normal fault (ML 4.5) and the other an oblique normal mechanism (ML 4.3). Stress inversion and bootstrap analysis of 72 well-constrained focal mechanisms indicate that the maximum principal stress direction is horizontal, oriented in a north-northeast direction (3°–36°). However, the intermediate and minimum stress axes fluctuate between horizontal and vertical and are nearly equal in magnitude, indicating that both reverse and strike-slip regimes can occur in response to relatively small stress perturbations. Stress inversions using event subsets before and after the largest mainshock reveals an approximately 30° counter-clockwise coseismic rotation of the principal stress axes in the hypocentral region. Furthermore, the observed seismicity suggests that the largest mainshock event exceeded the calculated Mmax using models based on injected volumes, suggesting that it may be an example of runaway rupture. This has important implications for risk analysis, because small changes in the stress field may be induced through ongoing operations in this area, destabilizing different faults within a complex structural environment.