bluuebunny/crossref_metadata_2025 huggingface dataset:
Knowledge gaps in quantifying the climate change response of biological storage of carbon in the ocean
Authors: Henson Stephanie Anne , Baker Chelsey Adrianne , Halloran Paul Richard , McQuatters-Gollop Abigail , Painter Stuart C. , Planchat Alban , Tagliabue Alessandro
Published: January 2024

The ocean is responsible for taking up approximately 25% of
anthropogenic CO2 emissions and stores > 50 times more
carbon than the atmosphere. Biological processes in the ocean play a key
role, maintaining atmospheric CO2 levels 200 ppm lower than they would
otherwise be. The ocean’s ability to take up and store CO2 is sensitive
to climate change, however the key biological processes that contribute
to ocean carbon storage are uncertain, as are their response and
feedbacks to climate change. As a result, biogeochemical models vary
widely in their representation of relevant processes, driving large
uncertainties in the projections of future ocean carbon storage. This
review identifies key biological processes that affect how carbon
storage may change in the future in three thematic areas: biological
contributions to alkalinity, net primary production, and interior
respiration. We undertook a review of the existing literature to
identify processes with high importance in influencing the future
biologically-mediated storage of carbon in the ocean, and prioritised
processes on the basis of both an expert assessment and a community
survey. Highly ranked processes in both the expert assessment and survey
were: for alkalinity – high level understanding of calcium carbonate
production; for primary production – resource limitation of growth,
zooplankton processes and phytoplankton loss processes; for respiration
– microbial solubilisation, particle characteristics and particle type.
The analysis presented here is designed to support future field or
laboratory experiments targeting new process understanding, and
modelling efforts aimed at undertaking biogeochemical model development.
The effect of children’ approach to learning, externalizing problems and disconnection on academic skills
Authors:   The Korea Associantion For Early Childhood Education Administration, Ha Min-kyung , Kwak Seung-Ju
Published: January 2024

The purpose of this study is to analyze the effect of children’ approach to learning, externalizing problems and disconnection on academic skills. This study used 7th data from the Korean Children’s Panel, and stepwise multiple regression analysis were performed to analyze influence of variables. Research results were as follows. First, approach to learning, externalizing problems and disconnection of children were found to affect academic skill, and approach to learning showed the highest explanatory power. When looking at the effect of the sub-factors of externalizing problems(attention problem, aggressive behavior) on academic skill, the attention problem had the greatest explanatory power. Second, looking at the effect of the sub-factors of externalizing problems(attention problem, aggressive behavior) on the sub-factors of academic skill(language and literacy, mathematical thinking), only the attention problem among the sub-factors of externalizing problems affected language and literacy. Next, among the sub-factors of externalizing problem behavior, only the attention problem affected mathematical thinking. This study aims to provide educational implications for the development of basic learning skills for young children’ adaptation to elementary school by identifying factors that affect children’s academic skill.
Practices and direction on citizenship education for young children of preschool teacher
Authors:   The Korea Associantion For Early Childhood Education Administration, Yoon Gab-Jung , Noh Jin-Hyeong , Chung Kai-Sook , Son Hwan-Hee
Published: January 2024

This purpose of this study is to investigate practices and direction on citizenship education for young children recognized by preschool teacher as a agent of practice. To do this, data were collected from 12 preschool teachers using 5 times focus group interviews, from July 23 to August 9, 2021 and analyzed data according to the inductive spiral qualitative data analysis method presented by Creswell (2007). The findings showed that first, preschool teachers’ perception on practices of citizenship education for young children were as follows: ‘unplanned but included in Nuri curriculum’, ‘implemented in the form of character education and basic life habit education’, ‘develop children who are today’s citizen into citizen of the future’, ‘daily life education seeking common good.’ The second, preschool teacher’s perception on direction of practices of citizenship education for young children were as follows: ‘guaranteeing teachers' autonomy while integrating character education and basic life habit education’, ‘creating a democratic classroom where children participate and are responsible’, ‘secure safety through order and rules, but in a democratic way’, ‘from raising teachers' awareness to parents education, and further forming a democratic social culture.’ The findings of this study give some discussion about that challenges and directions of citizenship education practices based on conceptual relations between citizenship, character education and basic life habit education. Also, meaning to direction of citizenship education practices perceived by preschool teachers was discussed.
Enterprise Risk Management as Part of the Organizational Control Package: Review and Implications for Management Accounting Research
Authors: Braumann Evelyn C. , Hiebl Martin R. W. , Posch Arthur
Published: January 2024

Research on enterprise risk management (ERM) has increased considerably in the past two decades. Although management accounting researchers have substantially contributed to these advancements, previous reviews of the ERM literature have not discussed in depth the role of ERM as part of the organizational control package and how management accounting research could build on its research traditions to further our collective understanding of ERM. In this paper, we therefore adopt a management control perspective to critically analyze both quantitative and qualitative empirical ERM research and specifically focus on the integration of ERM in organizational control packages. Taking a complementarity perspective and accounting for the decision-facilitating and decision-influencing purposes of management accounting and control systems (MACS), we recommend several broader avenues for future management accounting research on ERM.
Does Political Uncertainty Obfuscate Narrative Disclosure?
Authors: Mekhaimer Mohamed , Soliman Marwa , Zhang Weining
Published: January 2024

We examine the relation between political uncertainty and narrative disclosure complexity in conference calls. Using firm-level political uncertainty, we find that political uncertainty is positively associated with firms’ disclosures complexity as measured by the Fog index. Decomposing complexity into two latent components—information and obfuscation—we show that political uncertainty significantly increases the obfuscation but has no impact on the information. Further analysis reveals that complex disclosure is motivated by expected poor future performance amid political uncertainty. We also show that, during periods of heightened political uncertainty, obfuscated disclosure is associated with reduced earnings informativeness, increased dispersion in analyst forecasts, and higher volatility in forecast revisions. These findings are robust to including and excluding sentences containing complex political bigrams when calculating Fog. Further evidence shows that, during periods of political uncertainty, managers tend to use a more ambiguous tone and provide scripted and shorter (longer) responses to analysts’ questions (presentations).
OxPhos in adipose tissue macrophages regulated by BTK enhances their M2-like phenotype and confers a systemic immunometabolic benefit in obesity
Authors: S. D. Purvis Gareth , Collino Massimo , D. van Dam Andrea , Einaudi Giacomo , Ng Yujung , Shanmuganathan Mayooran , Y. Patel Smita , Thiemermann Christoph , M. Channon Keith , R. Greaves David
Published: January 2024

Bruton’s tyrosine kinase (BTK) is a non-receptor bound kinase involved in pro-inflammatory signalling in activated macrophages, however, its role within adipose tissue macrophages remains unclear. We have demonstrated that BTK signalling regulates macrophage M2-like polarisation state by up-regulating subunits of mitochondrially encoded electron transport chain Complex I (ND4 and NDL4) and Complex IV (mt-CO1, mt-CO2 and mt-CO3) resulting in an enhanced rate of oxidative phosphorylation (OxPhos) in an NF-kB independent manner. Critically, BTK expression is elevated in adipose tissue macrophages from obese individuals with diabetes, while key mitochondrial genes (mtC01, mtC02 and mtC03) are decreased in inflammatory myeloid cells from obese individuals. Inhibition of BTK signalling either globally (Xid mice) or in myeloid cells (LysMCreBTK), or therapeutically (Acalabrutinib) protects HFD-fed mice from developing glycaemic dysregulation by improving signalling through the IRS1/Akt/GSK3b pathway. The beneficial effects of acalabrutinib treatment are lost in macrophage ablated mice. Inhibition of BTK signalling in myeloid cells but not B-cells, induced a phenotypic switch in adipose tissue macrophages from a pro-inflammatory M1-state to a pro-resolution M2-like phenotype, by shifting macrophage metabolism towards OxPhos. This reduces both local and systemic inflammation and protected mice from the immunometabolic consequences of obesity. Therefore, in BTK we have identified a macrophage specific, druggable target that can regulate adipose tissue polarisation and cellular metabolism that can confer systematic benefit in metabolic syndrome.
Adaptive powder nozzle setup for enhanced efficiency in laser metal deposition
Authors: Bohlen Annika , Seefeld Thomas
Published: January 2024

Laser metal deposition (LMD) is a blown powder process used for the additive manufacturing of large and/or complex parts. The laser spot size is determined by the fiber optic cable and the imaging ratio of the process optics. Spot sizes typically used in LMD can range from 200 μm to several millimeters, whereby zoom optics can be employed to change the laser spot focus within seconds during the process. However, industrial powder nozzles are still static in terms of powder spot size. Changing the powder spot size in line with the laser spot size could ensure the favorable dual outcome of time savings when printing large volumes while also generating fine near-net-shape features. To help overcome the current limitations in the LMD process, this work examines an adaptive powder nozzle setup. In this discrete coaxial layout of three single lateral powder injectors, the individual powder injectors can be adjusted closer to or further from the process to, respectively, dilate or shrink the powder stream focus. Different inner diameters of powder injectors are hereby examined. The resulting powder propagation behavior is characterized for different setups of the single powder nozzles. Single beads are welded with different nozzle setups for fine and coarse powder spots, while the laser spot size is changed accordingly using zoom optics. The laser power is a closed-loop controlled by a two-color pyrometer to achieve comparative process temperatures. The single beads are evaluated with regard to their geometry. High-speed imaging provides supplementary information on weld bead generation.
Intervención en las dificultades de aprendizaje de la lecto-escritura más allá de la evaluación
Authors:   Docente en Escuela de Educación Básica Fausto Molina Molina, Los Ríos, Quevedo, Ecuador, Carrión Cerna Carlota Elizabeth
Published: January 2024

El aprendizaje de la lectura y la escritura representa una de las tareas más complejas a las que debe enfrentarse el niño o niña en sus primeros años de vida escolar, es decir entre los tres y siete años. A pesar de esta dificultad muchos consiguen adquirir estos aprendizajes con éxito pero algunos alumnos muestran dificultades a pesar de una normal dotación intelectual y no presentar otras limitaciones que pudieran justificar esas dificultades. Es decir, las dificultades en el aprendizaje de los estudiantes son muy comunes hoy en día, y se les atribuyen a diversas causas, entre ellas, causas biológicas, orgánicas (disfunción de algún órgano) y medio ambientales del estudiante, que a veces no son detectadas por el docente. En este contexto se hace fundamental la labor del docente de infantil y, especialmente a nivel inicial a la hora de prevenir, detectar y corregir con prontitud estas dificultades para que el niño no acabe perdiéndose durante el proceso de aprendizaje. Disponer de la formación necesaria, herramientas y recursos que favorezcan la buena marcha del proceso de enseñanza-aprendizaje además de una buena capacidad de reflexión, investigación, análisis y planificación adquiere especial relevancia dentro de las competencias profesionales del maestro
Efectos del consumo de agua contaminada en la calidad de vida de las personas
Authors:   Instituto Superior Tecnológico Stanford, Riobamba, Ecuador, Ramos Mancheno Angelita Dolores de Jesús
Published: January 2024

El disponer de agua segura para el consumo humano es la meta de todos los países, sin embargo, su calidad se ve afectada por factores relacionados con la contaminación del medioambiente y aquellos derivados de la actividad antropogénica, algunos con mayor incidencia que otros, dependiendo de la zona geográfica de estudio y con efectos patológicos para el hombre. Se tiene como objetivo determinar los efectos del agua contaminada en la salud y la calidad de vida de las personas. Método: revisión sistemática de artículos científicos seleccionados desde cinco años atrás y relacionados o investigados en revistas indexadas entre ellas: Medline, Scielo, PubMed, Scopus. En los resultados, se evidenciaron datos relevantes luego de los análisis de laboratorio referidos al agua contaminada por microorganismos, parásitos, residuos tóxicos y las manifestaciones clínicas por su ingesta principalmente la enfermedad diarreica aguda. En las conclusiones se evidencia que los contaminantes principales del agua de consumo humano son las heces del hombre y animales y/o de las aguas servidas que afectan a las vertientes y ríos, siendo los principales, las bacterias Coliformes.
Análisis de la alimentación contextualizada en niños prescolares y escolares en Latinoamérica: revisión sistemática
Authors:   Instituto Superior Tecnológico Stanford, Riobamba, Ecuador., Sagñay Llinin Gloria Susana , Ocaña Noriega José Ramiro ,   Instituto Superior Tecnológico Stanford, Riobamba, Ecuador.
Published: January 2024

La alimentación es un proceso voluntario y necesario de todos los seres humanos, ya que de esta se obtiene los nutriente necesarios para el cuerpo para cumplir con las funciones vitales, influyendo esta positiva o negativamente en la salud de los niños preescolares, atribuyendo que el consumo de una alimentación inadecuada es factor de desequilibrio nutricional ya sea esta por déficit como el bajo peso y desnutrición, o por exceso como es el sobrepeso y obesidad, estos, afectando en el desarrollo cognitivosde los infantes y por ende en su rendimiento académico.El consumo de una alimentación poco o nada saludable específicamente en los niños preescolares es un problema a nivel mundial, produciendo una alteración en el estado nutricional, y estos a su vez enel desarrollo físico y mental de los niños, conllevando a un déficit del coeficiente intelectual repercutiendo en el aprendizaje, afectando negativamente en sus notas y comportamiento.
Role of turmeric with Calcium Hydroxide in Combination in Prophylaxis & Therapeutic Management of SARs Cov2 Covid-19 Corona Virus
Authors: D Bhadlikar
Published: January 2024

Despite of worldwide efforts, the covid-19 coronavirus SARs CoV2 pandemic is continuing. At present there is no medicine, vaccine which has evidence so there is utmost need of clinical intervention by the oldest traditional health science that is Ayurveda. In Ayurveda text ‘Acharya charak’ has described in ‘vimansthan’ in ‘janpadodhawasan chapter’ mentioned about epidemic disease and its management SARs CoV2 can be correlated with the disease ‘tiwra Pinas’ which is ‘vata-kapha sannipataj jwara’ which has similar symptoms like SARs CoV2. Ayurvedic herbal medicines advised in this disease are aagneya in Guna most of the herbs are antiviral, antioxidants and immunity modulators which may help in preventive and therapeutic aspects. The immunity modulators are helpful in boosting immunity which helps in forming antibodies against virus overall it may help to reduce mortality rate. In covid-19 there may be disseminated intravascular coagulation that is thrombosis .The affected parts are lungs and terminally cardiac arrest, stroke and many other thrombo-embolic diseases may occur. In this condition there is a role of turmeric with calcium hydroxide in combination may act as antiviral, antioxidant, anticoagulant & immunity modulator which works in breathlessness and reduces mucus & inflammation in respiratory tract as anti-inflammatory effect. The combination reduces viral replication in this condition. With this combination of the turmeric along with calcium hydroxide and immunity booster may play important role in prophylaxis and therapeutic management of SARs CoV2 covid-19 corona virus.
Diseases like Corona Spread through Unethical Behavior
Authors: MK Sharma
Published: January 2024

Today entire world is in fear of COVID-19 after it has been declared pandemic by the WHO. Generally, when an epidemic occurs it affects a local area or a nation, but it is very rare that a disease spreads and affects the entire world. Today the world faces a similar dreadful situation. What has led to such conditions? Where did we go wrong as human race? Is there any mention of such epidemics anywhere in our books? Can we prevent ourselves from such dreadful diseases? These are the points which have been covered in this research paper.
Iron Stress Testing of Oilfield Produced Waters and Hydraulic Fracturing Fluids in the Bakken
Authors: CE Njie
Published: January 2024

Friction reducers are a major additive in almost all water-based hydraulic fracturing fluids. Despite the important role they play in friction reduction during hydraulic fracturing, they pose a veritable threat to the permeability of tight reservoirs upon precipitation. In the industry today, the potential for such precipitation is seldom assessed and as a result, an additional contributor to the formation damage problem has been given little attention. In this work, the sensitivity and affinity of friction reducers to very low concentrations of ferric ions are exploited to provide a qualitative assessment of their propensity to precipitate in hydraulically fractured hydrocarbon reservoirs. Representative samples of produced water and a routinely utilized hydraulic fracturing fluid recipe were spiked with 50ppm Iron (III) trichloride and incubated for 24 hours in a water bath at 200 degrees Fahrenheit. The results showed that precipitation of friction reducers in fracturing fluid is highly likely at low concentrations of ferric ions. This precipitate formed turned from yellow to brown color over time upon heating. The test showed presence of fragmented/unfragmented Partially Hydrolyzed Polyacrylamide (PHPAM) in the produced water, with varying degrees of FR gel precipitation depending on the processing treatment given to the water used for hydraulic fracturing. Evidence for the presence of partially hydrolyzed polyacrylamide was demonstrated in one of the produced waters while the rest did not produce any discernable precipitates. The results indicate that formations with lower iron concentrations may be more vulnerable to Fe3+-PHPAM precipitation than those with higher ferric ion concentration. Therefore, to mitigate formation damage through precipitation of FRs during hydraulic fracturing, a routine iron stress test like the one described herein is required on both hydraulic fracturing fluid and produced water to determine the vulnerability of the reservoir to formation damage by fragmented/unfragmented anionic PHPAMs.
Data Analytics and Development of a Wellbore Cleaning Coefficient Model
Authors: H Trabelsi
Published: January 2024

In this study, wellbore cleaning coefficient (WCC) correlations were developed for three conventional coiled tubing sizes (2.375”, 2.625”, and 2.875”). These sizes correspond to roughness to internal (ε/D) ratios of 0.000460828, 0.000510637, and 0.000572517, respectively. Dimensional analysis, applying the Buckingham-π theorem and a database from 150 wells in the Spraberry formation in West Texas, was used. Key performance indicators (KPIs) that influence flow in a cased pipe around an object (coil tubing) were identified and employed in model development. These KPIs are (1) slick water density ( f ñ ), (2) slick water viscosity ( µ f ), (3) hydraulic diameter ( c t d - d ) between casing inner diameter (dc ) and coil tubing outer diameter ( t d ), (4) average annular velocity ( v ) and (5) cleaning pressure gradient(∆P) . The cleaning pressure gradient is the ratio of the circulating differential pressure (pu -pd ) to measured depth (MD). A global model that relates WCC to the Euler number and the inverse of the Reynolds number was attempted at first. A low coefficient of multiple determination R2 of 0.626 was obtained. To better explain the physics of the cleaning process and improve the model fit, data segregation was performed by separating data into three data sets, a set for each ε/D ratio. R2 of 0.974, 0.945, and 0.877 were obtained. It was decided to separate the database further and create models that would be used to identify “clean” and “not clean” wellbores. These equations addressed operational conditions since in data partition threshold values of annular velocity, Euler and Reynolds numbers were applied to describe laminar and turbulent flow conditions. The predictive equations showed excellent degrees of fit with R2 of 0.979, 0.822, and 0.897, for clean wells for the three ε/D ratios, respectively. This study’s findings were also validated using cumulative debris versus elapsed time data from 12 Woodford wells.
ANALYSIS OF INVESTMENT DECISIONS THROUGH FINANCIAL LITERACY WITH FINANCIAL BEHAVIOR AS A MODERATING VARIABLE AT STUDENTS OF STIE NGANJUK
Authors: Mahendra Prasetya Tri , Fidiana Fidiana
Published: January 2024

The main purpose of this study is to analyze the influence of Financial Literacy on investment decisions with financial behavior as a moderating variable, in STIE Nganjuk students class of 2022. The variables in this study are (1) Financial Literacy (2) Financial Behavior (3) Investment decisions. This study uses simple regression analysis methods and moderation regression. The results of this study show that Financial Literacy has an influence on Investment Decisions and Financial Behavior moderates the influence of Financial Literacy on Investment Decisions.
ANALYSIS OF THE INFLUENCE OF INFORMATION QUALITY, E-WOM AND POSTAGE SUBSIDY ON PURCHASING DECISIONS ON SHOPEE
Authors: Romadhoni Ilham , Muharim Veronica Cice , Nurhidayat Nando , Priyono Edi
Published: January 2024

In today's competitive digital business world, sellers must be able to keep up with business developments by selling online to expand the sales market. Because currently many people prefer to buy more product they want online rather than coming directly to the location. The quality of the information and promos provided will create consumer purchasing decisions. The aim of this research is to determine and analyze the influence of information quality, e-WOM, and postage subsidies on purchasing decisions at the shop. The population in this research is the people of Surakarta. This research is quantitative research, the research sample was 100 respondents taken using purposive sampling techniques. The data collection technique uses multiple linear regression analysis techniques with the help of SPSS 24. Based on the results of testing, information quality has no effect on purchasing decisions, then e-WOM has a significant effect on purchasing and shipping decisions. Cost subsidies have a significant effect on purchasing decisions at Shopee.
Issledovanie teplovogo vozdejstviya femtosekundnyh lazernyh impul'sov na embriony myshi v ramkah procedury vspomogatel'nogo hetchinga
Authors: Кубекина М. В. , Филатов М. А. , Силаева Ю. Ю. , Ситников Д. С.
Published: January 2024

Odnoj iz prichin besplodiya yavlyaetsya narushenie hetchinga — processa vylupleniya embriona iz special'noj zashchitnoj obolochki (ZP, zona pellucida,) neposredstvenno pered implantaciej. CHasto narushenie hetchinga obuslovleno uplotneniem ili utolshcheniem ZP. Dlya preodoleniya besplodiya v takih sluchayah pribegayut k procedure vspomogatel'nogo lazernogo hetchinga, kogda s pomoshch'yu lazera v ZP delayut otverstie, oblegchaya vyhod embriona iz nee. Vopros bezopasnosti primeneniya lazera dlya provedeniya procedury vspomogatel'nogo hetchinga ostaetsya otkrytym, poskol'ku lazernoe izluchenie sposobno nagrevat' okruzhayushchuyu sredu i potencial'no vyzyvat' u embrionov termicheskij shok. Cel'yu nastoyashchej raboty bylo ocenit' bezopasnost' femtosekundnogo lazernogo vozdejstviya na embriony myshi v ramkah procedury vspomogatel'nogo hetchinga, ispol'zuya metody issledovaniya zhiznesposobnosti embrionov i urovnej ekspressii genov HSP. Dlya dissekcii ZP v rabote ispol'zovali novyj tip istochnika lazernyh impul'sov femtosekundnoj dlitel'nosti. Energiya ukazannyh impul'sov na dva poryadka nizhe energii millisekundnyh lazernyh dissektorov, primenyaemyh v klinikah v nastoyashchij moment. Dlya ocenki femtosekundnogo lazernogo vozdejstviya na embrion proizvodili okrashivanie embrionov domovoj myshi (Mus musculus) fluorescentnymi krasitelyami, a takzhe ocenivali urovni ekspressii genov, kodiruyushchih belki teplovogo shoka: Hsp90aa1 i Hspa5. Posle vypolneniya procedury vspomogatel'nogo lazernogo hetchinga s ispol'zovaniem femtosekundnogo lazera kletki embrionov sohranyali zhiznesposobnost', a urovni ekspressii genov, kodiruyushchih belki teplovogo shoka, povyshalis' neznachitel'no po sravneniyu s gruppoj otricatel'nogo kontrolya (p = 0,408).
INVESTIGASI PEMANFAATAN TANAH LEMPUNG DAN ABU AMPAS TEBU UNTUK PEMBUATAN PAVING BLOCK
Authors: Oktavia Chica , Afina Syta , Amran Yusuf
Published: January 2024

Bahan penyusun paving block terbuat dari semen portland, agregat halus (pasir) dan air. Karena meningkatnya penggunaan paving block dengan semen sebagai bahan perekat sangat tinggi berdampak terhadap harga jual dan pasir sebagai agregat halus memiliki dampak bagi lingkungan. untuk mengurangi dampak tersebut, penulis membuat penelitian dengan manfaatkan tanah lempung dan abu ampas tebu untuk pembuatan paving block. Tahapan yang dilakukan tahapan penyiapan alat, pengambilan dan pengumpulan tanah lempung dan abu ampas tebu, tahapan pengujian bahan, tahapan pencampuran, tahapan pembuatan sampel dan tahapan akhir pengujian paving block. Hasil pengujian pembuatan paving block dengan menggunakan campuran 5% abu ampas tebu daya serap air paving block 29,994%, kuat tekan paling tinggi pada suhu pemanasan 100c selama 120 menit sebesar 24,263 Kg/Cm, dan beban kejut dengan suhu pemanasan 125c, 150c selama 100 menit dan 60 menit sebesar 105,95 joule. Pada campuran 15% abu ampas tebu terjadi peningkatan daya serap air, penurunan kuat tekan, dan beban kejut paving block
PERENCANAAN DESAIN PINTU AIR OTOMATIS UPAYA MITIGASI BANJIR PADA DRAINASE KELURAHAN DAMAI BARU KOTA BALIKPAPAN
Authors: Pongtoluran Ezra Hartato , Fatmawati Fatmawati , Rio Wahyu Yusuf
Published: January 2024

Kelurahan Damai Baru Kota Balikpapan merupakan kawasan yang sedang berkembang dengan pesat namun di tengah perkembangan ini, masih sering mengalami masalah banjir. Fenomena kejadian banjir saat ini tidak hanya terjadi pada saat musim hujan namun pada saat terjadi hujan dengan durasi 3 jam sudah dapat mengakibatkan genangan. Air hujan yang tidak terserap akan melimpas dan menggenangi bagian dataran permukiman yang relatif rendah, terlebih bila bertepatan dengan pengaruh pasang surut air laut yang malah menambah beban volume air dalam kawasan. Oleh sebab itu akan dilakukan perencanaan desain pintu air otomatis sebagai upaya mitigasi banjir pada saluran drainase. Dalam upaya meminimalisir volume aliran yang terdapat pada kawasan, bentuk analisis yang dilakukan dengan membuat pemetaan lokasi dan tata guna lahan, lalu pengukuran dimensi untuk mengetahui kapasitas saluran dalam menerima tampungan aliran limpasan dari kawasan. Apabila dimensi saat ini belum mampu menampung debit rencana maka dilakukan perubahan dimensi saluran. Berdasarkan data dimensi saluran tersebut, maka dapat dilakukan desain pintu air pada drainase untuk mencegah aliran masuk kedalam kawasan. Hasil penelitian menunjukkan saluran saat ini memiliki kapasitas yang kurang terhadap debit rencana yang akan masuk dalam saluran, besar komulatif debit rencana yang terjadi pada masing-masing saluran yaitu saluran kanan sebesar 8,211 m3/detik dan saluran kiri sebesar 8,507 m3/detik. Kemudian dilakukan penyesuaian dimensi terhadap debit banjir rencana dan didapatkan besar kapasitas tampungan saluran drainase pada rencana pembuatan pintu air yaitu saluran kanan memiliki kapasitas 8,346 m3/s dan saluran kiri memiliki kapasitas 8,634 m3/s. Desain kebutuhan pintu air disesuaikan pada dimensi saluran drainase yang dapat menampung debit rencana yaitu saluran kanan memiliki tinggi sebesar 1,35 m dan lebar sebesar 1,10 m dengan dimensi pintu klep tinggi 1,05 m dan lebar 0,94 m, sedangkan untuk saluran kiri memiliki tinggi sebesar 1,40 m dan lebar sebesar 1,10 m dengan dimensi pintu klep tinggi 1,10 m dan lebar 0,94 m
ANALISIS PEMILIHAN RUTE PERJALANAN DARI DAN MENUJU PULAU PASARAN BERDASARKAN WAKTU PERJALANAN
Authors: Karim A. Ikhsan , Anshori M. Alif
Published: January 2024

Pulau Pasaran yang terletak di Kecamatan Teluk Betung Timur Kota Bandar Lampung merupakan desa wisata sentra ikan teri. Sebagian besar penduduknya bekerja sebagai nelayan dan pengolahan ikan. Hal ini mengakibatkan tingkat aktivitas perjalanan penduduknya relatif tinggi. Pada jam sibuk, arus lalu lintas dari Pulau Pasaran maupun menuju Pulau Pasaran terganggu sehingga kemacetan sering kali terjadi meskipun terdapat tiga rute yang berbeda. Pergerakan dari masing-masing rute berbeda satu sama lain sehingga perlu dilakukan penelitian untuk mendapatkan jalur terbaik dan mengetahui berbagai hambatan yang terjadi. Penelitian ini menggunakan metode sampel kendaraan, atau mengemudikan sampel kendaraan dalam pola lalu lintas yang bergerak melalui ketiga rute. Hasil yang didapat adalah perbandingan antara waktu tempuh tercepat dengan waktu tempuh rata-rata menuju Pulau Pasaran mempunyai selisih 19,85%. Waktu tercepat yaitu pada Hari Kamis siang (Rute I) dengan selisih 15,43%. Hambatan yang terbesar pada perjalanan dari Pulau Pasaran terjadi di di rute 2 pada hari Senin pagi dengan waktu 26 detik disebabkan oleh kegiatan pasar. Hambatan yang terbesar pada perjalanan menuju Pulau Pasaran terjadi di rute 1 pada hari Kamis sore dengan waktu 36 detik disebabkan oleh perbaikan jalan.
Going green with artificial intelligence: The path of technological change towards the renewable energy transition
Authors: Yin Hua-Tang , Wen Jun , Chang Chun-Ping
Published: January 2024

Research background: The twin pressures of economic downturn and climate change faced by countries around the world have become more pronounced over the past decade. A renewable energy transition is believed to play a central role in mitigating the economic-climate paradox. While the architectural and computational power of artificial intelligence is particularly well suited to address the challenges of massive data processing and demand forecasting during a renewable energy transition, there is very scant empirical assessment that takes a social science perspective and explores the effects of AI development on the energy transition.
Purpose of the article: This paper aims to answer two key questions: One is, how does AI software development promote or inhibit the shift of energy consumption towards renewables? The other is, under what policy interventions does AI software development have a more positive effect on promoting renewable energy consumption?
Methods: We employ a dataset of 62 economies covering the period 2011–2020 to analyze the impact of AI software development on the energy transition, where possible confounders, including political and economic characteristics and time-invariant elements, are controlled using fixed-effects estimation along with specified covariates.
Findings & value added: AI software development can promote the energy transition towards renewables. There is suggestive evidence that the core mechanism linking such a positive relationship tends to lie in improving innovation performance in environmental monitoring rather than in green computing. Government support for R&D in renewable energy technologies is found to be significantly beneficial for harnessing the positive impact of AI software development on the energy transition. Compared to non-market-based environmental policies, market-based environmental policies have a more significant positive moderating effect on the relationship between AI software development and energy transition.
Paths to low-carbon development in China: The role of government environmental target constraints
Authors: Bai Tingting , Xu Dong , Yang Qianyi , Dudás Piroska Vargáné , Dénes Dávid Lóránt , Zhu Kai
Published: January 2024

Research background: To achieve the targets for carbon peak and air quality improvement, local governments should propose environmental targets and develop realization paths that are tailored to their unique local conditions. They then promote low-carbon development through the implementation of multiple measures.
Purpose of the article: As the government performance appraisal system im-proves, the question arises as to whether governments take the initiative to com-bine environmental policies with government target constraints to reduce carbon emissions.
Methods: The announcement of environmental target constraints by local governments in government work reports is considered a quasi-natural experiment. This study examines the effect of government environmental target constraints (GETC) on carbon emissions (CEs) using differences-in-differences (DID), propensity score matching-DID (PSM-DID), and spatial-DID (SDID) with data from 241 Chinese cities from 2003 to 2019.
Findings & value added: The results demonstrate that GETC can effectively reduce local CEs, with the inhibitory effect being most effective in the first two years after setting environmental targets, but diminishing in the third year. GETC can reduce local CEs through three paths: reducing energy consumption, promoting industrial structure optimization, and encouraging green technology innovation. Spatial spillover effects show that GETC reduces local CEs while exacerbating CEs in neighboring cities, indicating a beggar-thy-neighbor effect in conventional environmental regulation policy. This effect is observed mainly in the geographic matrix and the economic-geographic matrix, but not in the economic matrix. According to heterogeneity analysis, GETC in the eastern and central cities can significantly reduce CEs. The inhibitory effect of GETC on local CEs is stronger in cities where secretaries and mayors have longer tenures and higher levels of education. The paper's theoretical value lies in exploring the reduction of CEs through the combination of government self-restraint and environmental policies, providing a new solution for local governments to achieve CEs reduction. Furthermore, it offers practical insights into the improvement of the Chinese government assessment system.
Implicit Caputo-Fabrizio fractional differential equations with delay
Authors: Krim Salim , Abbas Said ,   Department of Mathematics, University of Saida-Dr. Moulay Tahar, Saida, Algeria. Email: abbas.said@univ-saida.dz., Benchohra Mouffak ,   Laboratory of Mathematics, Djillali Liabes University of Sidi Bel-Abbès, Algeria. Email: benchohra@yahoo.com., Nieto Juan J. ,   Departamento de Estatistica, Análise Matemática e Optimización, Instituto de Matemáticas, Universidade de Santiago de Compostela, Spain. Email: juanjose.nieto.roig@usc.es.
Published: January 2024

"This article deals with some existence and uniqueness results for several classes of implicit fractional differential equations with delay. Our results are based on some fixed-point theorems. To illustrate our results, we present some examples in the last section. Keywords: Caputo-Fabrizio fractional order derivative, implicit, delay, fixed point."
Radius problems for certain classes of analytic functions
Authors:   School of Mathematical Sciences, Universiti Sains Malaysia, Penang, Malaysia. Email: chungyaoliang@gmail.com., Chung Yao Liang , Mohd Maisarah Haji ,   School of Mathematical Sciences, Universiti Sains Malaysia, Penang, Malaysia. Email: maisarah hjmohd@usm.my., Supramaniam Shamani ,   School of Mathematical Sciences, Universiti Sains Malaysia, Penang, Malaysia. Email: shamani@usm.my.
Published: January 2024

"Radius constants for functions in three classes of analytic functions to be a starlike function of order α, parabolic starlike function, starlike function associated with lemniscate of Bernoulli, exponential function, cardioid, sine function, lune, a particular rational function, and reverse lemniscate are obtained. One of these classes are characterized by the condition Re g/(zez ) > 0. The other two classes are defined by using the function g and they consist respectively of functions f satisfying Re f/g > 0 and |f/g − 1| < 1. Keywords: Starlike function, radius of starlikeness, exponential function."
Some classes of Janowski functions associated with conic domain and a shell-like curve involving Ruscheweyh derivative
Authors:   Department of Applied Mathematics and Science, National University of Science&Technology, Caledonian College of Engineering and Oman Medical College, Sultanate of Oman. Email: kr karthikeyan1979@yahoo.com., Karthikeyan Kadhavoor Ragavan , Varadharajan Seetharam ,   Faculty of Mathematics, Department of IT, "Al Mussanah" University of Technology and Applied Sciences, Sultanate of Oman. Email: svrajanram@gmail.com., Lakshmi Sakkarai ,   Faculty of Mathematics, Department of IT, "Al Mussanah" University of Technology and Applied Sciences, Sultanate of Oman. Email: laxmirmk@gmail.com.
Published: January 2024

"Making use of Ruscheweyh derivative, we define a new class of starlike functions of complex order subordinate to a conic domain impacted by Janowski functions. Coefficient estimates and Fekete-Szego¨ inequalities for the defined class are our main results. Some of our results generalize the related work of some authors. Keywords: Analytic function, Schwarz function, starlike, convex, shell-like functions, Janowski functions, subordination, Fekete-Szego¨ inequality, Ruscheweyh derivative."
On certain properties of some subclasses of univalent functions
Authors:   Department of Mathematics, Faculty of Civil Engineering, University of Belgrade, Belgrade, Serbia. Email: obrad@grf.bg.ac.rs., Obradović Milutin , Tuneski Nikola ,   Department of Mathematics and Informatics, Faculty of Mechanical Engineering, Ss. Cyril and Methodius University in Skopje, Republic of North Macedonia. Email: nikola.tuneski@mf.edu.mk.
Published: January 2024

"In this paper we determine the disks $|z|0\qquad (|z|<r).$$ Keywords: Univalent, inverse functions, coefficients, sharp bound."
Differential subordination implications for certain Carathéodory functions
Authors:   Department of Mathematics, University of Delhi, India. Email: meghnasharma203@gmail.com., Sharma Meghna , Kumar Sushil ,   Bharati Vidyapeeth’s College of Engineering, Delhi, India. Email: sushilkumar16n@gmail.com., Jain Naveen Kumar ,   Department of Mathematics, Aryabhatta College, Delhi, India. Email: naveenjain05@gmail.com.
Published: January 2024

"In this article, we wish to establish some first order differential subordination relations for certain Carathéodory functions with nice geometrical properties. Moreover, several implications are determined so that the normalized analytic function belongs to various subclasses of starlike functions. Keywords: Differential subordination, Carathéodory function, starlike functions, sufficient conditions."
Certain geometric properties of generalized Bessel-Maitland function
Authors:   Department of Mathematics, Government Engineering College, Bikaner, Rajasthan, India. Email: aamitt1981@gmail.com., Soni Amit , Bansal Deepak ,   Department of Mathematics, College of Engineering and Technology, Bikaner, Rajasthan, India. Email: deepakbansal 79@yahoo.com.
Published: January 2024

"In the present study, we first introduce Generalized Bessel-Maitland function $\mathbb{J}^{\xi }_{\zeta,a}(z)$ and then derive sufficient conditions under which the Generalized Bessel-Maitland function $\mathbb{J}^{\xi}_{\zeta,a}(z)$ have geometric properties like univalency, starlikeness and convexity in the open unit disk $\mathscr{D}$. Keywords: Univalent, starlike, convex and close-to-convex function, subordination, Bessel functions, Bessel-Maitland functions."
Global solution for a diffusive epidemic model (HIV/AIDS) with an exponential behavior of source
Authors:   Faculty of New Technologies of Information and Communication, Kasdi Merbah University, UKM, Ouargla, Algeria. Email: dmhbsdj@gmail.com., Daddiouaissa El Hachemi
Published: January 2024

"We consider the question of global existence and uniform boundedness of nonnegative solutions of a system of reaction-diffusion equations with exponential nonlinearity, without any restriction on initial data, using maximum principle and Lyapunov function techniques. Keywords: Reaction-diffusion systems, Lyapunov function, global solution."
ANTONIO ASTORGANO ABAJO y FUENSANTA GARRIDO DOMENÉ, Vicente Requeno y Vives. Ensayos históricos para servir al restablecimiento de la música de los antiguos griegos. Edición bilingüe, Córdoba, UCOPress, 2022, 550 páginas, ISBN 978-84-9927-652-6
Authors: Calero Luis
Published: January 2024

Reseña de Antonio Astorgano Abajo y Fuensanta Garrido Domené, Vicente Requeno y Vives. Ensayos históricos para servir al restablecimiento de la música de los antiguos griegos. Edición bilingüe, Córdoba, UCOPress, 2022, 550 páginas, ISBN 978-84-9927-652-6
La diplomacia argelina como fuente de legitimidad: entre tradición y renovación
Authors:   Maître de Conférences en Ciencias Políticas, Université de Jijel (Argelia), Chabouni Samia
Published: January 2024

El poder argelino tras el Hirak (las protestas y movilizaciones sociales de 2019-2020) ha apostado por la política exterior tanto para restaurar el papel de Argelia en el escenario internacional como para contener la crisis social y política interna en el país. Al considerar que la política exterior es un instrumento de legitimación eficaz, a través de ella ha intentado absorber la cólera de la población provocada por los excesos de los cuatro mandatos de Abdelaziz Buteflika (1999-2019). A fin de elaborar esta política, el actual presidente, Abdelmadjid Tebboune, ha lanzado la idea de una nueva Argelia, la cual se presenta al mundo por medio de una nueva política exterior.
Unión Europea y Mercosur: perspectivas de acuerdo en la coyuntura geopolítica actual
Authors:   Profesor titular, Universidad de la República (Uruguay), Caetano Gerardo , Pose Nicolás
Published: January 2024

Desde 2019, se ha constatado a nivel internacional la emergencia de cambios geopolíticos de gran magnitud, junto con la profundización de otras transformaciones con orígenes previos. ¿Hasta qué punto, y cómo, este nuevo contexto internacional replantea las perspectivas de concreción del «acuerdo en principio» entre la Unión Europea (UE) y Mercosur aprobado en 2019? A partir de un marco teórico ecléctico, que combina enfoques geopolíticos y geoeconómicos junto con abordajes sobre el impacto de factores materiales e ideacionales, el presente artículo propone una mirada longitudinal, que incorpora una amplia variedad de fuentes, para tratar de echar luz sobre las oportunidades y perspectivas de un acuerdo de este tipo entre la UE y Mercosur en los nuevos marcos globales.
Introducción. Élites políticas y legitimación en el Norte de África: la conexión entre lo doméstico y lo internacional
Authors:   Profesora ayudante doctora de Relaciones Internacionales, Universidad Nacional de Educación a Distancia (UNED), Tomé-Alonso Beatriz , Hernando de Larramendi Miguel ,   Catedrático de Estudios Árabes e Islámicos, Universidad de Castilla-La Mancha
Published: January 2024

En las últimas décadas se han solapado diversas crisis en el Norte de África. A la crisis del contrato social, que quedó patente durante las revueltas antiautoritarias de 2011 y 2019, se ha unido una crisis socioeconómica acentuada tras la pandemia de la COVID-19 en 2020 y agravada por los efectos globales de la invasión rusa de Ucrania. Este artículo subraya la necesidad de reflexionar sobre la legitimación de las élites norteafricanas en este contexto a partir de la conexión entre las esferas doméstica e internacional. Igualmente, presenta diferentes estrategias de legitimación que contemplan la interacción entre ambos espacios, el interior y el exterior. Dicha aproximación permite enriquecer el debate sobre la relación entre autoritarismo, su legitimación y la dimensión internacional.
„Er ég að gera vel í lífinu?“
Authors: Sigurðardóttir Þóra Björg
Published: January 2024

Meginhugsunin í siðferðilegu uppeldi er sú að þrátt fyrir að það sé líkast til sífelld vinna og ævilöng að verða dygðug manneskja sé hægt að móta tilfinningar okkar og geðshræringar með aukinni þekkingu, umræðu og rökræðum um það hvernig við sjálf viljum vera og verða. Bókmenntir eins og Gísla saga Súrssonar gefa kost á að þróa og styrkja sjálfsþekkingu nemenda ef þeir nálgast þær með hið sammannlega að leiðarljósi og tengja þær við bæði tíðarandann og eigið gildismat. Með því að setja sig í spor persóna og lesa söguna út frá þeim er hægt að skoða hvernig geðshræringar stýra athöfnum og gjörðum manneskja og koma í leiðinni upp um innræti þeirra, gildi og siðferði. Að sama skapi hvetur sú nálgun nemendur, án kvaða, til að spegla eigið líf og samfélag í bókmenntunum og hugsa um sitt eigið siðferðilega sjálf. Á þennan hátt er bókmenntakennsla tækifæri til siðferðilegs uppeldis.
Sulfonated mesoporous polystyrene-1D multiwall carbon nanotube nanocomposite as potential adsorbent for efficient removal of xylene isomers from aqueous solution
Authors: Krishnan Mohan Raj , Rajendran Venugopal
Published: January 2024

Xylene isomers are notorious chemical hazards, and their efficient removal from water solutions is still challenging. The current study reports a polymer nanocomposite as a potential adsorbent for successfully removing dissolved xylene isomers from contaminated water. Polystyrene-1D multiwall carbon nanotube nanocomposite (PS-MWCNT) adsorbent was prepared using the one-step bulk polymerization method. Mesoporous PS-MWCNT was prepared using the nano-crystallization phase separation method. The sulfonation of the mesoporous PS-MWCNT nanocomposites was carried out by treating the samples with concentrated sulfuric acid at elevated temperatures. The sulfonated PS-MWCNT (HO3S-PS-MWCNT) was found to be a potential adsorbent for dissolved xylene isomers from water solution. In addition, the HO3S-PS-MWCNT can be efficiently recycled for up to 10 consecutive cycles with negligible decline in adsorption values. The exhibited equilibrium adsorption, rate of adsorption, and rapid regeneration of the HO3S-PS-MWCNT are clear indications for the possibility of practical utilization of these adsorbents in large-scale water treatment plants.