bluuebunny/crossref_metadata_2025_split huggingface dataset:
Zeros of Ramanujan-type Polynomials
Authors: Maji Bibekananda , Sarkar Tithi 
Published: June 2023

Abstract

Ramanujan's notebooks contain many elegant identities and one of the celebrated identities is a formula for $\zeta(2k+1)$. In 1972, Grosswald gave an extension of the Ramanujan's formula for $\zeta(2k+1)$, which contains a polynomial of degree $2k+2$. This polynomial is now well-known as the {\it{Ramanujan polynomial}} $R_{2k+1}(z)$, first studied by Gun, Murty, and Rath. Around the same time, Murty, Smith and Wang proved that all the non-real zeros of $R_{2k+1}(z)$ lie on the unit circle. Recently, Chourasiya, Jamal, and the first author found a new polynomial while obtaining a Ramanujan-type formula for Dirichlet $L$-functions and named it as {\it{Ramanujan-type} polynomial} $R_{2k+1,p}(z)$. In the same paper, they conjectured that all the non-real zeros of $R_{2k+1,p}(z)$ lie on the circle $|z|=1/p$. The main goal of this paper is to present a proof of this conjecture.
A mechanism to explain soil liquefaction environmental effects during an earthquake
Authors: Teixeira Fernando 
Published: June 2023

Abstract
Soil liquefaction has potentially devastating consequences for infrastructures and endangers human lives. The mechanisms used to explain the above-ground environmental effects of soil liquefaction during and after an earthquake stops require a set of conditions seldom observed in situ (e.g. in the water degassing mechanism). The nature of the high-pressure heads observed remain unknown. Herein an alternative conceptual model is presented based on the pressure heads of the liquefied soil, water or slurry and the differences in density of the two fluids. Water or a slurry of low density, for example, from water springs flowing out of bedrock fissures, is a requirement of the model. A simulation of a simplified system shows that a pressure head of the slurry well over the required to reach the soil surface is obtained in most of the function's domain. The flow velocity at the surface will depend on the soil and water mixture ratio, which is expected to be correlated with the soil characteristics through the profile- the potential for the walls of the cracks to collapse. The inexistence of active water springs prevents the ejection of water mixtures at the soil surface. When saturated and permeable soil is shacked, as during an earthquake, the rearrangement of the solid particles leads to transient pore water pressure increase; however, the mean pressure head on a horizontal surface remains equal to the pressure head without shaking. This text discusses a mechanism to explain the above-ground environmental effects of soil liquefaction.
Neophyten Glyceria striata (Lam.) Hitchc. und Scirpus atrovirens Willd. im Rheinischen Schiefergebirge bei Oberwinter
Authors: Gerstberger Pedro 
Published: June 2023

In einem Wald bei Oberwinter (Rheinisches Schiefergebirge; ca, 10 km südlich von Bonn) hat sich innerhalb der letzten Jahre die nordamerikanische Poacee Glyceria striata (Lam.) Hitchc. ausbreiten und einbürgern können. Die Art findet sich z.T. in individuenreichen Populationen und besiedelt hauptsächlich die Ränder von schattigen und feuchten Waldwegen. Scirpus atrovirens Willd., eine weitere neophytische Pflanzenart aus Nordamerika, konnte an den gleichen Standorten beobachtet werden. Zu beiden Arten werden Bestimmungshinweise gegeben und ihre speziellen Standortansprüche diskutiert.
Vapor-phases as Cu transport agents for the shear-zone-hosted mineralization system: A perspective from H-O-S-Cu isotopes
Authors: Zhao Yun , Xue Chunji , Liu Sheng-Ao , Mathur Ryan , Zhao Xiaobo , Seltmann Reimar , Jiao Jiangang , Huang Yongsen , Wang Xuefeng 
Published: June 2023

Abstract
Elucidating metal transport agents is the key to understanding the genesis of deposits and tracking the locations of concealed orebodies. Here, we integrate H-O-S-Cu isotopic data from the shear-zone-hosted Lingyun Cu deposit, China, as a means to fingerprint metal transport agents. Sulfide mineralization can be divided into early and late stages, which consist of chalcopyrite + bornite + quartz veins and chalcopyrite + bornite + ankerite veinlets, respectively. Both δ18Ofluid and δD values of fluid inclusions hosted by quartz (δ18Ofluid: 0.5‰ to 9.9‰, δD: –103.9‰ to –60.1‰) and δ65Cu values of sulfides (–1.85‰ to +0.39‰) from the early stage progressively decrease from the southeastern to northwestern portions of the Lingyun deposit, whereas sulfide δ34S simultaneously shifts toward heavier values (–14.4‰ to 5.0‰). The δ34S and δ65Cu values of sulfides from the late stage have restricted ranges from –11.2‰ to –9.3‰ and –0.30‰ to 0.05‰, respectively. The possibilities of meteoric water addition, water-rock interaction, inter-mineral Cu partitioning, diffusion, and oxidation could be ruled out as reasons for having caused systematic H-O-S-Cu isotope variations. Vapor-liquid separation resulted in preferential incorporation of light Cu, H, and O isotopes into the vapor phase. The decrease in oxygen fugacity in the fluids resulted in a shift toward heavier δ34S values as fluid flowed outward. Vapor-phases are the dominant transport agents for Cu in the Lingyun deposit, which may be widely applicable to shear-zone-hosted deposits. The direction of progressively increasing δ65Cu, δD, and δ18O values and decreasing δ34S values allows identification of potential locations of concealed orebodies.
ARMAĞAN-I YASİN-İ ŞERÎF
Authors: ALYILMAZ Semra , ALYILMAZ Cengiz 
Published: June 2023

Tarih boyunca farklı coğrafyalarda yaşayan Türkler, geçmişten günümüze kadar pek çok dini kabul etmişlerdir. Tengriçilik (Şamanizm / Kamizm), Budizm, Mecusilik / Zerdüştilik, Manihaizm, Hristiyanlık (Nasturilik), Musevilik / Yahudilik ve İslamiyet Türklerin kabul ettikleri dinlerin en belli başlı olanlarıdır. Bu dinlerden Türkleri sosyal ve kültürel bakımdan en çok etkileyen de kuşkusuz ki İslamiyet olmuştur.
Türklerin İslamiyet’i kabul ettikten sonra eski inançlarının ve geleneklerinin pek çoğunu terk ettikleri, birçok alanda İslami kuralları, Kur’an-ı Kerim’deki emir ve yasakları, Hz. Muhammed’in hadislerini hayatlarının merkezine koydukları bilinmektedir. Türklerin doğum ve ölümle ilgili bazı inanışlarının; mevlit okutma, kandil ve bayram kutlama geleneklerinin temelinde de çoğunlukla İslami kuralların ve inanışların olduğu inkâr edilemez bir gerçektir.
Anadolu’da yaşayan Türkler arasında, Kur’an-ı Kerim’in 114 suresinden biri olan ve 36. sureyi oluşturan Yasin suresi, ayrı bir yere ve öneme sahiptir. 83 ayetten oluşan sure, Müslümanlar tarafından “Kuran’ın Kalbi” olarak kabul edilmektedir. Bu surenin önemiyle ilgili olarak Hz. Muhammed’in sözleri bulunmaktadır. Müslümanlar hem surenin ifade ettiği anlamları hem de Hz. Muhammed’in bu sureyle ilgili olarak söylemiş olduğu sözleri göz önünde bulundurarak doğumdan ölüme kadar hayatın her alanında Yasin-i Şerif okumanın yararına inanmışlar; bununla ilgili bazı geleneklerin oluşmasını da sağlamışlardır. Ramazan ayının her günü farklı bir amaçla Yasin-i Şerif okuma geleneği de bunlardan birini oluşturur. Temeli yüzlerce yıl öncesine dayanan bu gelenek Anadolu’nun farklı bölgelerinde hâlâ devam ettirilmektedir.
“Armağan-ı Yasin-i Şerîf” adlı eser de bu geleneğin varlığına ve tarihinin eskiliğine tanıklık etmektedir. “Armağan-ı Yasin-i Şerîf”, Arap alfabesiyle ve Osmanlı Türkçesiyle XX. yüzyılın başlarında yazılmıştır ve yazarı bilinmemektedir. Dil özellikleri eserin, daha önceki yıllarda yazılmış bir kaynak eserden hareketle yazıldığını göstermektedir.
“Armağan-ı Yasin-i Şerîf” adlı eser hâlen Bursalı iş adamı İbrahim Koca’nın arşivinde bulunmaktadır.
Modified DRASTIC method for groundwater vulnerability assessment in areas with diverse Quaternary deposits
Authors: Männik Magdaleena , Karro Enn , Marandi Andres , Polikarpus Maile , Ani Tavo , Rosentau Alar 
Published: June 2023

Abstract
The DRASTIC method is one of the most widely used groundwater vulnerability assessment techniques. In areas where the main useful aquifers are covered with an extra layer of diverse sediments, a further modification of the DRASTIC method is required for a more precise vulnerability estimation. In this article, the DRASTIC method was improved in areas characterized by a layer of diverse Quaternary deposits remarkably influencing the infiltration conditions. Three parameters were modified: (1) the D-parameter was adjusted to consider the overlying Quaternary deposits that, in some cases, make the aquifer confined, (2) the S-parameter was replaced by the Quaternary sediment-type parameter to assess the hydraulic characteristics of the highly variable deposits, and (3) the I-parameter was replaced by the thickness of the Quaternary deposits parameter to describe the distance from the ground surface to the main useful aquifer. The original and modified DRASTIC methodology was applied in an area with glacial sediments in Central Estonia. Comparing the results using the original and the modified DRASTIC method to a former Estonian groundwater vulnerability method showed that the DRASTIC method was significantly improved and could, thus, be successfully applied in other areas characterized by a heterogenous Quaternary sediment cover.
Bias correction and projection of temperature over the altitudes of the Upper Indus Basin under CMIP6 climate scenarios from 1985 to 2100
Authors: Jamal Kashif , Li Xin , Chen Yingying , Rizwan Muhammad , Khan Muhammad Adnan , Syed Zain , Mahmood Prince 
Published: June 2023

AbstractThe identification of projected changes in temperature caused by global warming at a fine-scale spatial resolution is of great importance for the high-altitude glacier and snow covered Upper Indus Basin. This study used a multimodel ensemble mean bias-correction technique which uses the ensemble empirical mode decomposition method to correct the bias of ensemble mean of seven CMIP6 GCMs outputs with reference to the European Centre for Medium-Range Weather Forecasts Reanalysis 5 (ERA5). The bias-corrected data have a nonlinear trend of seven GCMs but interannual variance and mean climate of ERA5 dataset. The dataset spans from 1985 to 2100 for historical and future climate scenarios (SSP126, SSP245, SSP370, and SSP585) at daily time intervals with a 1 km grid resolution. The result of different scenarios indicates that the increase in maximum (Tmax) and minimum temperature (Tmin) ranging from 1.5 to 5.4 °C and 1.8 to 6.8 °C from 2015 to 2100, respectively. Similarly, elevation-dependent warming is identified in Tmin from 1.7 to 7.0 °C at elevations &lt;2,000 to 6,000 m asl, while the contrary relationship in Tmax is projected under different scenarios from 2015 to 2100. This study provides an insight into how to improve the GCMs projections and can be helpful for further climate change impact studies.
Assessment of the monsoonal impact of air pollutants and meteorological factors on physicochemical water quality parameters using remote sensing
Authors: Ahmed Mehreen , Mumtaz Rafia , Anwar Zahid , Zaidi Syed Mohammad Hassan 
Published: June 2023

Abstract

With growing urbanization, water contamination has become a problem. The water quality is assessed using physicochemical parameters and requires manual collection. Moreover, physicochemical parameters are insufficient for water quality monitoring as heavy rainfalls and abundance of air pollutants cause water pollution. Thus, considering natural factors as influencing parameters and the latest technology for easy and global coverage for sampling, water quality monitoring is modified. This study investigates Rawal watershed with (a) physicochemical, (b) air pollutants like nitrogen dioxide (NO2), and (c) meteorological variables like wind speed for June 2018 to September 2022. Correlation and regression analysis are performed. The results show negative correlations for NO2 with total dissolved solids (TDS) (ranging, 0.51–0.85), turbidity (range, 0.53–0.65), pH (range, 0.5–0.75), and dissolved oxygen (DO) (range, 0.5–0.82), and positive correlation with electric conductivity (EC) (range, 0.54–0.85). The regression analysis with LightGBM, multi-layer perceptron (MLP), and support vector machine (SVM) is applied with air pollutants, and meteorological parameters taken as independent variables giving root-mean-square error (RMSE) (ranging, 0.015–0.18). MLP gave an RMSE of 0.18 and 0.003 for TDS and pH, respectively. SVM performed well for DO, turbidity, and EC with RMSE ranging from 0.015 to 0.027. Moreover, floods on August 2022 are taken as a case study.
Water resource management based on wireless virtualization in wastewater reclamation and utilization in dryland botanical garden
Authors: Chen Guanyu 
Published: June 2023

Abstract
The research on the management and distribution of renewable water resources mostly adopts the method of combining the intelligent optimization algorithm and the target planning model. In this paper, four water distribution users are used as categories, and the problem of renewable water resources allocation is transformed into a classification problem, which is included in the category of wireless virtualization processing problems, and wireless virtualization is selected to support the allocation of renewable water resources. Experiments show that the water shortage of the water distribution scheme obtained by the method in this paper is lower than that of the optimal water distribution scheme of the traditional intelligent optimization algorithm. It can also be seen from the water distribution cost and water shortage of a single user that the water distribution effect of the method in this paper is better than that of the traditional intelligent optimization algorithm (P&lt;0.05). It shows that the research on the management and distribution method of renewable water resources based on wireless virtualization not only provides new ideas for dealing with configuration problems but also has important significance for alleviating the shortage of water resources in our country and the management and utilization of renewable water resources.
Effect of flocculant dosage on the settling properties and underflow concentration of thickener for flocculated tailing suspensions
Authors: Zhang Lianfu , Wang Hongjiang , Wu Aixiang , Yang Ke , Zhang Xi , Guo Jiabin 
Published: June 2023

Abstract

Flocculation is important in the thickening process to improve the underflow concentration in thickeners for tailing suspensions. Traditional zone settling velocity (ZSV) functions ignore the effect of flocculant dosage on the ZSV and the thickening behavior of thickeners. To investigate the effect of flocculant dosage on the settling flux function, a series of batch settling tests were conducted at various flocculant dosages for unclassified and fine tailings. The correlation among flocculant dosage, solid fraction, and parameters in the ZSV function was revealed. Moreover, a simulation of continuous thickening based on the ZSV function was performed. Results indicated that flocculation influenced settling velocity and floc density. With an increased flocculant dosage, the settling velocity of floc increased, resulting in increased underflow concentration. Conversely, floc density decreased due to a stronger particle–particle interaction, leading to a decreased underflow concentration.
Appraisal of data-driven techniques for predicting short-term streamflow in tropical catchment
Authors: Yeoh Kai Lun , Puay How Tion , Abdullah Rozi , Abd Manan Teh Sabariah 
Published: June 2023

Abstract

Short-term streamflow prediction is essential for managing flood early warning and water resources systems. Although numerical models are widely used for this purpose, they require various types of data and experience to operate the model and often tedious calibration processes. Under the digital revolution, the application of data-driven approaches to predict streamflow has increased in recent decades. In this work, multiple linear regression (MLR) and random forest (RF) models with three different input combinations are developed and assessed for multi-step ahead short-term streamflow predictions, using 14 years of hydrological datasets from the Kulim River catchment, Malaysia. Introducing more precedent streamflow events as predictor improves the performance of these data-driven models, especially in predicting peak streamflow during the high-flow event. The RF model (Nash–Sutcliffe efficiency (NSE): 0.599–0.962) outperforms the MLR model (NSE: 0.584–0.963) in terms of overall prediction accuracy. However, with the increasing lead-time length, the models' overall prediction accuracy on the arrival time and magnitude of peak streamflow decrease. These findings demonstrate the potential of decision tree-based models, such as RF, for short-term streamflow prediction and offer insights into enhancing the accuracy of these data-driven models.
Transcriptomic Analysis of lncRNAs and their mRNA Networks in
Cerebral Ischemia in Young and Aged Mice
Authors: Zeng Yuanyuan , Xue Tengteng , Zhang Dayong , Lv Manhua 
Published: June 2023

Background:
Ischemic stroke comprises 75% of all strokes and it is associated with a
great frailty and casualty rate. Certain data suggest multiple long non-coding Ribonucleic Acids
(lncRNAs) assist the transcriptional, post-transcriptional, and epigenetic regulation of genes expressed
in the CNS (Central Nervous System). However, these studies generally focus on differences
in the expression patterns of lncRNAs and Messenger Ribonucleic Acids (mRNAs) in tissue
samples before and after cerebral ischemic injury, ignoring the effects of age.

Methods:
In this study, differentially expressed lncRNA analysis was performed based on RNAseq
data from the transcriptomic analysis of murine brain microglia related to cerebral ischemia
injury in mice at different ages (10 weeks and 18 months).

Results:
The results showed that the number of downregulate differentially expressed genes
(DEGs) in aged mice was 37 less than in young mice. Among them, lncRNA Gm-15987, RP24-
80F7.5, XLOC_379730, XLOC_379726 were significantly down-regulated. Then, Gene Ontology
(GO) enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis indicated that
these specific lncRNAs were mainly related to inflammation. Based on the lncRNA/mRNA coexpression
network, the mRNA co-expressed with lncRNA was mainly enriched in pathways, such
as immune system progression, immune response, cell adhesion, B cell activation, and T cell differentiation.
Our results indicate that the downregulation of lncRNA, such as Gm-15987, RP24-
80F7.5, XLOC_379730, and XLOC_379726 in aged mice may attenuate microglial-induced inflammation
via the progress of immune system progression immune response, cell adhesion, B cell
activation, and T cell differentiation.

Conclusion:
The reported lncRNAs and their target mRNA during this pathology have potentially
key regulatory functions in the cerebral ischemia in aged mice while being important for diagnosing
and treating cerebral ischemia in the elderly.
Exploring the Biochemical Mechanisms of Fluoroquinolone Compounds
against Tuberculosis by Utilizing Molecular Docking and Quantitative
Structure-amino Acid Relationship
Authors: Alam Muneer , Fatima Zeeshan , Nandi Sisir 
Published: June 2023

Background:
Tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis
(Mtb). It is one of the leading causes of death of 1.5 million people each year. TB can be treated by
directly observed treatment short course (DOTS), but due to multidrug-resistant (MDR) and extensively
drug-resistant (XDR) tuberculosis, consequences can be devastating if the single DOTS dose is missed by
the patient. MDR and XDR-TB require much more attention and time to control the infection. The longer
period of tuberculosis treatment has side effects and it is expensive.

Objectives:
This alarming condition demands the development of novel processes to diagnose the disease
in its early stage as well as to produce more promising antimicrobial chemotherapeutics. The current
study aimed to explore molecular mechanisms involving docking simulation-based quantitative structureamino
acid relationship (QSAAR) in order to have a better understanding of the interactions between the
fluoroquinolones and Mtb DNA gyrase.

Methods:
In this study, 24 fluoroquinolone (FQ) compounds present in the literature were selected and
docked against the Mtb DNA gyrase. Further, the relationship between the minimum inhibitory concentration
of the compounds and interacting amino acids was assessed using QSAAR.

Results:
The study has established a novel method of formulating a quantitative structure-amino acid
relationship. A significant correlation (R-value=0.829) between biological activity and the docked amino
acid residues responsible for producing anti-tubercular activities has been obtained.

Conclusion:
The predicted residues captured in the developed model have been explored to report the
Mtb virulence.
Pathological Lung Ultrasound May Take Time to Resolve Despite Respiratory
Symptoms Improvement: A Pediatric Case Series Followed for Long
COVID
Authors: Klain Angela , Indolfi Cristiana , Dinardo Giulio , Contieri Marcella , Decimo Fabio , Miraglia del Giudice Michele 
Published: June 2023

Background:
Long COVID affects 8 to 10 % of children. Currently, the COVID-19 fo-llow-up protocols in children include chest auscultation, collection of growth parameters, including weight, height and body mass index, execution of the six-minute walking test, basal spirometry, and afterwards, bronchodilation test and lung ultrasound.

Case Presentation:
In this paper, the authors describe a case series of long COVID followed up for 9 months at the Department of Pediatrics of the University Luigi Vanvitelli. The review of the lite-rature was performed on PubMed using the keywords COVID-19, follow-up, children, and lung ul-trasound. The aim of this article was to highlight the need to create custom follow-up programs for long Covid in children through the description of a case followed up at our Pediatric Department and a review of the current literature

Discussion:
The reversal of pathological lung ultrasound signs occurred in six or nine months des-pite the early improvement of respiratory symptoms and pulmonary function. There are limited stu-dies on the ultrasonography follow-up of kids with COVID-19 in the literature, and there are still no follow-up COVID-19 guidelines for paediatric population.

Conclusion:
Pathological lung ultrasound in children recovered from COVID-19, may take time to resolve; therefore, evaluating patients with lung ultrasound in the following months could be a ra-diation-saving approach useful for children who have fully recovered and have no warning signs.
Kikuchi-Fujimoto Disease in the Axilla after COVID-19 Vaccination: A Case Report
Authors: Baek Hye Jin , Cho Eun , Bae Kyungsoo , Jeon Kyung Nyeo , Moon Jin Il , Park Sung Eun , Lee Han Shin , An Hyo Jung 
Published: June 2023

Background:
Kikuchi-Fujimoto disease (KFD) is a rare, self-limiting inflammatory condition of unknown etiology that is characterized by fever and painful lymphadenopathy. KFD commonly involves the posterior cervical region and very rarely occurs in the axilla.

Case Presentation:
We report on a case of KFD that presented 3 weeks after receiving the messenger ribonucleic acid-based coronavirus disease 2019 (COVID-19) vaccine. In this case, we suspected the lesions as COVID-19 vaccination-related lymphadenopathy on the initial ultrasonographic examination.

Conclusion:
Through this case report, we highlight that KFD should be considered in the differential diagnosis of patients with axillary lymphadenopathy who have undergone COVID-19 vaccination, as unusual side effects of COVID-19 vaccination have been increasingly reported in the literature owing to the rapid development of various COVID-19 vaccines during the pandemic period. In addition, we emphasize the importance of clinical suspicion in diagnosing KFD due to the fact that axillary involvement of KFD is extremely rare.