bluuebunny/crossref_metadata_2025_split huggingface dataset:
A

(
p
,
q
)

analogue of Poly-Euler polynomials and some related polynomials
Authors: Komatsu T. , Ramírez J. L. , Sirvent V. F. 
Published: July 2020

UDC 517.5
We introduce a

(
p
,
q
)

-analogue of the poly-Euler polynomials and numbers by using the

(
p
,
q
)

-polylogarithm function. These new sequences are generalizations of the poly-Euler numbers and polynomials. We give several combinatorial identities and properties of these new polynomials, and also show some relations with

(
p
,
q
)

-poly-Bernoulli polynomials and

(
p
,
q
)

-poly-Cauchy polynomials. The

(
p
,
q
)

-analogues generalize the well-known concept of the

q

-analogue.
Unveiling the Importance of Magnetic Fields in the Evolution of Dense Clumps Formed at the Waist of Bipolar H ii Regions: A Case Study of Sh 2-201 with JCMT SCUBA-2/POL-2
Authors: Eswaraiah Chakali , Li Di , Samal Manash R. , Wang Jia-Wei , Ma Yuehui , Lai Shih-Ping , Zavagno Annie , Ching Tao-Chung , Liu Tie , Pattle Kate , Ward-Thompson Derek , Pandey Anil K. , Ojha Devendra K. 
Published: July 2020

Abstract
We present the properties of magnetic fields (B fields) in two clumps (clump 1 and clump 2), located at the waist of the bipolar H ii region Sh 2-201, based on James Clerk Maxwell Telescope SCUBA-2/POL-2 observations of 850 μm polarized dust emission. We find that B fields in the direction of the clumps are bent and compressed, showing bow-like morphologies, which we attribute to the feedback effect of the H ii region on the surface of the clumps. Using the modified Davis–Chandrasekhar–Fermi method, we estimate B-field strengths of 266 and 65 μG for clump 1 and clump 2, respectively. From virial analyses and critical mass ratio estimates, we argue that clump 1 is gravitationally bound and could be undergoing collapse, whereas clump 2 is unbound and stable. We hypothesize that the interplay of the thermal pressure imparted by the H ii region, the B-field morphologies, and the various internal pressures of the clumps (such as magnetic, turbulent, and gas thermal pressures) has the following consequences: (a) formation of clumps at the waist of the H ii region; (b) progressive compression and enhancement of the B fields in the clumps; (c) stronger B fields that will shield the clumps from erosion by the H ii region and cause pressure equilibrium between the clumps and the H ii region, thereby allowing expanding ionization fronts to blow away from the filament ridge, forming bipolar H ii regions; and (d) stronger B fields and turbulence that will be able to stabilize the clumps. A study of a larger sample of bipolar H ii regions would help to determine whether our hypotheses are widely applicable.
PENGARUH STRATEGI PEMBELAJARAN MOBILE LEARNING DAN GAYA BELAJAR VISUAL TERHADAP PENGUASAAN KOSAKATABAHASA JERMAN SISWA SMA NEGERI 1 MAROS
Authors: Agung Rinaldy Malik  , Emzir  , Sri Sumarni  
Published: July 2020

This research aims for knowing the impact toward the strategies of learning such as mobile learning and the mastery of visual learning toward the ability students about German vocabulary. This research is using quantitative and method of experiment with analysis Anava two lines. The sample of this research using random sampling as the result, it can be determined with two groups of sample at class XI SMA Negeri 1 Maros that are class XI IPA 1 as the class which used as experiment and XI IPA 2 as control class. The result of this research shows that there are the impact significantly toward the mastery of German language between the group of learning strategy mobile learning Lern Deutsch Goethe Institut and Instagram to the learning visual style of student. From this analysis it can be concluded that the value Qcount A1B-A2B = 4.33. From the table of Critical Value Q (Tukey) with α = 0.05, k = 4 and n = 11 Related to the value of Qtable (0.05; 4; 11) = 4.26. Because Qcount A1B-A2B = 4.33> Qtable = 4.26 or H0 is rejected, the mastery of the German language for groups of students who are given by the strategy of learning from Mobile Learning Lern Deutsch Goethe Institute and the student who has a learning visual style more higher (33,36) than the group of students who are given by the strategy of learning with Mobile learning Instagram (29.64) who has a learning visual style.
Abstrak
Penelitian ini bertujuan untuk mengetahui pengaruh strategi pembelajaran mobile learning dan gaya belajar visual terhadap penguasaan kosakata bahasa jerman siswa. Penelitian ini merupakan penelitian kuantitatif dengan metode eksperimen mengguanakan analisis Anava dua jalur. Sampel penelitian menggunakan random sampling sehingga dapat ditentukan dua kelompok sampel di Kelas XI SMA Negeri 1 Maros yaitu kelas XI IPA 1 sebagai kelas eksperimen dan XI IPA 2 sebagai kelas kontrol. Hasil penelitian ini menunjukkan: bahwa terdapat pengaruh yang signifikan pada penguasaan bahasa Jerman antara kelompok startegi pembelajaran mobile learning Lern Deutsch Goethe Institut dan Instagram terhadap gaya belajar visual siswa. Dari hasil analisis diketahui bahwa nilai Qhitung A1B-A2B = 4,33. Dari tabel Critical Values Of Q (Tukey) dengan α = 0,05, k = 4 dan n = 11 diketahui nilai Qtabel (0,05; 4; 11) = 4,26. Karena Qhitung A1B-A2B = 4,33 > Qtabel = 4,26 atau H0 ditolak, maka penguasaan bahasa Jerman kelompok siswa yang diberi strategi pembelajaran Mobile Learning Lern Deutsch Goethe Institut dan yang memiliki gaya belajar visual lebih tinggi (33,36) daripada kelompok siswa yang diberi strategi pembelajaran Mobile Learning Instagram (29,64) yang memiliki gaya belajar visual.
Kata Kunci: strategi, pembelajaran, mobile learning, bahasa jerman
Posthumanismo y búsquedas autocompletadas
Authors: Sánchez Pablo 
Published: July 2020

Este texto tiene la intención de exponer algunosdesafíos del posthumanismo de Braidotti, señalar sus características, trazar algunos puentes con el diseño digital y, acogiéndose a su política afirmativa, hacer una humilde propuesta de espacio de diseño ético-político compatible con su visión del mundo en la era del Antropoceno. En la primera parte se busca situar el pensamiento de Braidotti en relación al sujetocomo proceso relacional. En la segunda partese habla de como el movimiento de software libre puede albergar gran parte de los artefactos y dispositivos ético políticos alrededor de los que construir una sociedad con capacidad de creación de una subjetividad relacional ecodependiente e interdependiente, consciente y localizada. Se analiza el impacto del género en los procesos de diseño ligados a los mecanismos sociales digitales y los devenires ligados a la automatización del trabajo como amenaza del orden social liderada, entre otros factores, por la inteligencia artificial. En este tramp se expone la crisis de diversidad que compone el sector y como el hecho de sustituir cuerpos por identidades no corpóreas puede ayudar a perpetuar el género masculino como única voz apoyándose en la ilusión de neutralidad.
En todas estas construcciones tecnológicas el diseñador tiene un rol crucial. Para poder acudir desde el diseño a la llamada a las políticas afirmativas que demanda Braidotti, los diseñadores debemos aceptar nuestra responsabilidad en el desafío posthumanista y proponer diseños y procesos que garanticen la subjetividad ética y política de seres ecodependientes e interdependientes, localizados y autoorganizados, lejos de las lógicas del capitalismo pero abrazando las capacidades tecnológicas y científicas entendidas bajo `´procesos sostenibles e iterativos en consonancia con un planeta finito.
Sistem Informasi Hutang Piutang (Studi Kasus:Perusahaan XYZ)
Authors: Purwanto Eko , Permatasari Hanifah 
Published: July 2020

XYZ Company in the process of delivering receivable payable information is done by the way, the Director came directly to the company to know the due date receivable payable still using the manual system by admin seeing the accounts payable one by one. As a result, the information of due date receivable payables is less quickly submitted to the owner of the company.
The puspose of designing and building a system of receivable payable information on Batik Rahmawati Company is, that the system expected would provide quickly and correctly information to the company.
In this research, the researcher proposed the use of web-based accountspayable information system to provide receivable payable information to owner and the due date of receivable payable information of the accounts payable to the supplier or customer. The system that has been used is developed to computerize based (towards computerization) by using online web and using the waterfall development system method and by using designtools DFD ( Data Flow Diagram ).
The testing is done by using Black box test which gives result that the web run as expected. The testing user who gives result agrees thet the system of the receivable payable information is feasiable and could help the user knowing the amount of the due date receivable payable. The conclusion of we-based receivable payable system is, that application could facilitate easilythe owner, suppliers, costomers of XYZ Company to know the receivable payable.
Hormones of Pituitary-Gonadal Axis and Histology of Pituitary Gland Following Oral Treatment of Male Wistar Rats with Glyphosate
Authors: Popoola S O , Sakpa C L 
Published: July 2020

There are numerous endocrine disrupting chemicals across the globe among which is the contentious organophosphate called glyphosate. The aim was to analyze the effects of glyphosate on Wistar rat’s pituitary gland and pituitary-gonadal axis. Specific objectives determined male reproductive hormones of Wistar rats exposed to glyphosate; demonstrated possible endocrine disruptive action of glyphosate on Wistar rats and determined effects of glyphosate on histology of pituitary gland. Fifteen male adult Wistar rats of 200g and above used for the study were randomly assigned into three groups A, B and C of 5 rats in each. Group A (control) gavaged with only distilled water. Group B (low dose) and Group C (high dose) were gavaged with 400mg and 2000mg of glyphosate/kg body weight/day respectively. All the rats were treated for 60 days before sacrificing, collection of blood sample and harvesting of tissue for analysis. Collated data were entered into Statistical Package for Social Scientists (version 21) for t-test and test of significance (p<0.05). Both follicle stimulating hormone and testosterone were significantly decreased in treated rats. The levels of luteinizing hormone, prolactin, oestrogen, progesterone and testosterone/oestrogen ratio statistically increased among treated groups. Adenohypophysis in Group B rats illustrated cellular hyperplasia with mitotic bodies while those of Group C demonstrated fewer cells that are widely separated by connective tissue. This study established glyphosate as an endocrine disrupting chemical. Histological slides of the pituitary gland of treated rats showed some level of abnormality. High-resolute imaging techniques were suggested for better imaging.
Prevalence of Substance Use Disorders among Patients of Accident and Emergency Department of a University Teaching Hospital
Authors: Dapap D D , Audu M D , Obembe A , Goar S 
Published: July 2020

Substance abuse and dependence are frequently encountered in emergency units of our hospitals, and it accounts for major health care problems frequently leading to accident and emergency department admission, though it is often missed or not diagnosed. The aim of this study was to estimate the prevalence of drug abuse and dependence among patients attending Accident and Emergency Hospitals and to determine the sociodemographic characteristics of these patients with substance use disorders. A total of 200 consented participants attending the accident and emergency unit of the hospital were recruited into the study consecutively over a 2-week period. They were screened for psychoactive substance use disorders (PSUD) with Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) and urine drug test (UDT) in the first phase and the Mini International Neuropsychiatric Interview (MINI) Instrument was used to make definitive diagnosis in the second stage. The result revealed that the prevalence of substance use disorders was 19.0% (13.0% for substance abuse and 6.0% for substance dependence). The study found that being male (p <0.001), widowed (p ≤0.012), and Christian (p ≤0.006) were associated with substance use disorders among patients presenting at accident and emergency units. The authors concluded that the prevalence of substance use disorders recorded in this study is higher compared to previous study conducted by Mustafa et al in Egypt with 11.5%. The reason could be due to inclusion of biochemical test (urine drug test) in our screening, whereas only self-report questionnaires were used in their study.
On the climate sensitivity and historical warming evolution in recent coupled model ensembles
Authors: Flynn Clare Marie , Mauritsen Thorsten 
Published: July 2020

Abstract. The Earth's equilibrium climate sensitivity (ECS) to a doubling of atmospheric CO2, along with the transient climate response (TCR) and
greenhouse gas emissions pathways, determines the amount of future warming. Coupled climate models have in the past been important tools to estimate
and understand ECS. ECS estimated from Coupled Model Intercomparison Project Phase 5 (CMIP5) models lies between 2.0 and 4.7 K (mean of
3.2 K), whereas in the latest CMIP6 the spread has increased to 1.8–5.5 K (mean of 3.7 K), with 5 out of 25 models exceeding
5 K. It is thus pertinent to understand the causes underlying this shift. Here we compare the CMIP5 and CMIP6 model ensembles and find
a systematic shift between CMIP eras to be unexplained as a process of random sampling from modeled forcing and feedback distributions. Instead,
shortwave feedbacks shift towards more positive values, in particular over the Southern Ocean, driving the shift towards larger ECS values in many
of the models. These results suggest that changes in model treatment of mixed-phase cloud processes and changes to Antarctic sea ice representation
are likely causes of the shift towards larger ECS. Somewhat surprisingly, CMIP6 models exhibit less historical warming than CMIP5 models, despite an
increase in TCR between CMIP eras (mean TCR increased from 1.7 to 1.9 K). The evolution of the warming suggests, however, that several of
the CMIP6 models apply too strong aerosol cooling, resulting in too weak mid-20th century warming compared to the instrumental
record.
Carbon dioxide and methane fluxes from different surface types in a created urban wetland
Authors: Li Xuefei , Wahlroos Outi , Haapanala Sami , Pumpanen Jukka , Vasander Harri , Ojala Anne , Vesala Timo , Mammarella Ivan 
Published: July 2020

Abstract. Many wetlands have been drained due to urbanization, agriculture,
forestry or other purposes, which has resulted in a loss of their ecosystem
services. To protect receiving waters and to achieve services such as flood
control and storm water quality mitigation, new wetlands are created in
urbanized areas. However, our knowledge of greenhouse gas exchange in newly
created wetlands in urban areas is currently limited. In this paper we
present measurements carried out at a created urban wetland in Southern
Finland in the boreal climate. We conducted measurements of ecosystem CO2 flux and CH4
flux (FCH4) at the created storm water wetland Gateway in Nummela,
Vihti, Southern Finland, using the eddy covariance (EC) technique. The
measurements were commenced the fourth year after construction and lasted
for 1 full year and two subsequent growing seasons. Besides ecosystem-scale fluxes measured by the EC tower, the diffusive CO2 and CH4 fluxes from the open-water areas (FwCO2
and FwCH4, respectively) were modelled based on
measurements of CO2 and CH4 concentration in the water.
Fluxes from the vegetated areas were estimated by applying a simple mixing
model using the above-mentioned fluxes and the footprint-weighted fractional
area. The half-hourly footprint-weighted contribution of diffusive fluxes
from open water ranged from 0 % to 25.5 % in 2013. The annual net ecosystem exchange (NEE) of the studied wetland was 8.0 g C-CO2 m−2 yr−1, with the 95 % confidence interval between −18.9 and
34.9 g C-CO2 m−2 yr−1, and FCH4 was 3.9 g C-CH4 m−2 yr−1, with the 95 % confidence interval between
3.75 and 4.07 g C-CH4 m−2 yr−1. The ecosystem sequestered
CO2 during summer months (June–August), while the rest of the year it
was a CO2 source. CH4 displayed strong seasonal dynamics, higher
in summer and lower in winter, with a sporadic emission episode in the end
of May 2013. Both CH4 and CO2 fluxes, especially those
obtained from vegetated areas, exhibited strong diurnal cycles during
summer with synchronized peaks around noon. The annual
FwCO2 was 297.5 g C-CO2 m−2 yr−1 and FwCH4 was 1.73 g C-CH4 m−2 yr−1. The peak diffusive CH4 flux was 137.6 nmol C-CH4 m−2 s−1, which was synchronized with the
FCH4. Overall, during the monitored time period, the established storm water
wetland had a climate-warming effect with 0.263 kg CO2-eq m−2 yr−1 of which 89 % was contributed by CH4. The
radiative forcing of the open-water areas exceeded that of the vegetation
areas (1.194 and 0.111 kg CO2-eq m−2 yr−1, respectively), which implies that, when
considering solely the climate impact of a created wetland over a 100-year
horizon, it would be more beneficial to design and establish wetlands with
large patches of emergent vegetation and to limit the areas of open water
to the minimum necessitated by other desired ecosystem services.
Twenty-first century ocean warming, acidification, deoxygenation, and upper-ocean nutrient and primary production decline from CMIP6 model projections
Authors: Kwiatkowski Lester , Torres Olivier , Bopp Laurent , Aumont Olivier , Chamberlain Matthew , Christian James R. , Dunne John P. , Gehlen Marion , Ilyina Tatiana , John Jasmin G. , Lenton Andrew , Li Hongmei , Lovenduski Nicole S. , Orr James C. , Palmieri Julien , Santana-Falcón Yeray , Schwinger Jörg , Séférian Roland , Stock Charles A. , Tagliabue Alessandro , Takano Yohei , Tjiputra Jerry , Toyama Katsuya , Tsujino Hiroyuki , Watanabe Michio , Yamamoto Akitomo , Yool Andrew , Ziehn Tilo 
Published: July 2020

Abstract. Anthropogenic climate change is projected to lead to ocean warming, acidification, deoxygenation,
reductions in near-surface nutrients, and changes to primary production, all of which are expected
to affect marine ecosystems. Here we assess projections of these drivers of environmental change
over the twenty-first century from Earth system models (ESMs) participating in the Coupled Model
Intercomparison Project Phase 6 (CMIP6) that were forced under the CMIP6 Shared Socioeconomic
Pathways (SSPs). Projections are compared to those from the previous generation (CMIP5) forced
under the Representative Concentration Pathways (RCPs). A total of 10 CMIP5 and 13 CMIP6 models are used in
the two multi-model ensembles. Under the high-emission scenario SSP5-8.5, the multi-model global
mean change (2080–2099 mean values relative to 1870–1899) ± the inter-model SD in sea
surface temperature, surface pH, subsurface (100–600 m) oxygen concentration, euphotic
(0–100 m) nitrate concentration, and depth-integrated primary production is
+3.47±0.78 ∘C, -0.44±0.005, -13.27±5.28,
-1.06±0.45 mmol m−3 and -2.99±9.11 %, respectively. Under the
low-emission, high-mitigation scenario SSP1-2.6, the corresponding global changes are
+1.42±0.32 ∘C, -0.16±0.002, -6.36±2.92,
-0.52±0.23 mmol m−3, and -0.56±4.12 %. Projected exposure of the marine
ecosystem to these drivers of ocean change depends largely on the extent of future emissions,
consistent with previous studies. The ESMs in CMIP6 generally project greater warming,
acidification, deoxygenation, and nitrate reductions but lesser primary production declines than
those from CMIP5 under comparable radiative forcing. The increased projected ocean warming results
from a general increase in the climate sensitivity of CMIP6 models relative to those of
CMIP5. This enhanced warming increases upper-ocean stratification in CMIP6 projections, which
contributes to greater reductions in upper-ocean nitrate and subsurface oxygen ventilation. The
greater surface acidification in CMIP6 is primarily a consequence of the SSPs having higher
associated atmospheric CO2 concentrations than their RCP analogues for the same
radiative forcing. We find no consistent reduction in inter-model uncertainties, and even an
increase in net primary
production inter-model uncertainties in CMIP6, as compared to CMIP5.
Technical note: Greenhouse gas flux studies: an automated online system for gas emission measurements in aquatic environments
Authors: Thanh Duc Nguyen , Silverstein Samuel , Wik Martin , Crill Patrick , Bastviken David , Varner Ruth K. 
Published: July 2020

Abstract. Aquatic ecosystems are major sources of greenhouse gases
(GHGs). Robust measurements of natural GHG emissions are vital for evaluating
regional to global carbon budgets and for assessing climate feedbacks of
natural emissions to improve climate models. Diffusive and ebullitive
(bubble) transport are two major pathways of gas release from surface
waters. To capture the high temporal variability of these fluxes in a
well-defined footprint, we designed and built an inexpensive device that
includes an easily mobile diffusive flux chamber and a bubble counter all
in one. In addition to automatically collecting gas samples for subsequent
various analyses in the laboratory, this device also utilized a low-cost
carbon dioxide (CO2) sensor (SenseAir, Sweden) and methane (CH4)
sensor (Figaro, Japan) to measure GHG fluxes. Each of the devices was
equipped with an XBee module to enable local radio communication (DigiMesh
network) for time synchronization and data readout at a server controller
station on the lakeshore. The software of this server controller was operated on
a low-cost computer (Raspberry Pi), which has a 3G connection for remote
control and monitor functions from anywhere in the world. This study shows
the potential of a low-cost automatic sensor network system for studying GHG
fluxes on lakes in remote locations.
Business Innovation and Competitive Advantage in Nigerian Manufacturing Sector
Authors: Oladimeji Moruff Sanjo , Amida Olasunkanmi Akeem , Essien Ekong Akpan 
Published: July 2020

The study examined the impact of business innovation on competitive advantage in the Nigerian Manufacturing Sector. The study was anchored on the theory of the resource-based theory and the dynamic capabilities theory. The descriptive survey design was employed. The population for the study comprised 496 staff of Nestle Nigeria Plc, Ogun State. A sample size of 217 respondents was selected through stratified sampling and a simple random sampling procedure. The questionnaire was administered to the respondents, out of which 207 were retrieved and subjected to further analysis. The stated hypotheses were tested using ordinal regression. The results showed that business innovation has a significant effect on the cost of the product (R2=0.729, F=11.237; p<.05), the sales of the product (R2=0.643, F=3.408; p<.05) and the quality of the product (R=0.845, R2=0.714, F=10.903; p<.05). The study recommended that multinational companies should pay more attention to customer satisfaction by increasing product quality. Emphasis should also be placed on innovation in order to cut a competitive edge.