bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of multivariate statistical analysis and water quality index for quality characterization of Parbati River, Northwestern Himalaya, India
Authors: Sharma Gaurav , Lata Renu , Thakur Nandini , Bajala Vishal , Kuniyal Jagdish Chandra , Kumar Kireet 
Published: September 2021

AbstractThe present study is an attempt to accomplish the understanding of the factors impacting Parbati river water quality in Kullu district of Himachal Pradesh. The main objective is to assess the overall water quality, to explore its hydrogeochemical characteristics including major ion contents and other chemical parameters using Water Quality Index (WQI), statistical techniques (principal component analysis) and conventional graphical representation such as Piper trilinear diagram, Durov. Eighteen surface water samples were collected from different altitudinal sites to analyze physico-chemical parameters for June 2019 and September 2019. Analytical outcomes of thirty-six surface water samples collected in Pre-monsoon and Post-monsoon seasons are well within the permissible limits as per BIS, 2012 and WHO 2011 for drinking and domestic purposes. Water quality characterization for the assigned use shows that maximum surface water samples fall under excellent to good water quality index and are suitable for drinking without conventional treatment. The Piper trilinear diagram classified 100% of surface water samples for both seasons’ falls in the fields of Ca2+-Mg2+-HCO3− water type indicating temporary hardness. Abundance of ions in the water samples is in the order: anions HCO3−>Cl−>SO42−>NO3− and cations Mg2+>Ca2+>Na+>K+. PCA identifies that the surface water chemistry is influenced by natural factors as well as minor anthropogenic activities in both the seasons. The correlation matrix has been prepared to analyse and observe the significance of the factors on the assessment of river water quality. Periodic assessment of surface water samples of the Parbati river and adjoining areas should be carried out. This approach will help in finding out any contamination of water occurring due to rapid socio-economic development as well as explosion of tourism industry in the region. Present study will work as baseline database for any future work in the region.
When medical images meet generative adversarial network: recent development and research opportunities
Authors: Li Xiang , Jiang Yuchen , Rodriguez-Andina Juan J. , Luo Hao , Yin Shen , Kaynak Okyay 
Published: September 2021

AbstractDeep learning techniques have promoted the rise of artificial intelligence (AI) and performed well in computer vision. Medical image analysis is an important application of deep learning, which is expected to greatly reduce the workload of doctors, contributing to more sustainable health systems. However, most current AI methods for medical image analysis are based on supervised learning, which requires a lot of annotated data. The number of medical images available is usually small and the acquisition of medical image annotations is an expensive process. Generative adversarial network (GAN), an unsupervised method that has become very popular in recent years, can simulate the distribution of real data and reconstruct approximate real data. GAN opens some exciting new ways for medical image generation, expanding the number of medical images available for deep learning methods. Generated data can solve the problem of insufficient data or imbalanced data categories. Adversarial training is another contribution of GAN to medical imaging that has been applied to many tasks, such as classification, segmentation, or detection. This paper investigates the research status of GAN in medical images and analyzes several GAN methods commonly applied in this area. The study addresses GAN application for both medical image synthesis and adversarial learning for other medical image tasks. The open challenges and future research directions are also discussed.
Continuous detection of concept drift in industrial cyber-physical systems using closed loop incremental machine learning
Authors: Jayaratne Dinithi , De Silva Daswin , Alahakoon Damminda , Yu Xinghuo 
Published: September 2021

AbstractThe embedded, computational and cloud elements of industrial cyber physical systems (CPS) generate large volumes of data at high velocity to support the operations and functions of corresponding time-critical and mission-critical physical entities. Given the non-deterministic nature of these entities, the generated data streams are susceptible to dynamic and abrupt changes. Such changes, which are formally defined as concept drifts, leads to a decline in the accuracy and robustness of predicted CPS behaviors. Most existing work in concept drift detection are classifier dependent and require labeled data. However, CPS data streams are unlabeled, unstructured and change over time. In this paper, we propose an unsupervised machine learning algorithm for continuous concept drift detection in industrial CPS. This algorithm demonstrates three types of unsupervised learning, online, incremental and decremental. Furthermore, it distinguishes between abrupt and reoccurring drifts. We conducted experiments on SEA, a widely cited synthetic dataset of concept drift detection, and two industrial applications of CPS, task tracking in factory settings and smart energy consumption. The results of these experiments successfully validate the key features of the proposed algorithm and its utility of detecting change in non-deterministic CPS environments.
The first record of Hirnantian Ostracoda in South America: implications for the biostratigraphy and paleozoogeography of the Paraná basin
Authors: Gonçalves Lívio Reily de Oliveira , Do Carmo Dermeval Aparecido , Salas Maria José , Adôrno Rodrigo Rodrigues , Meidla Tõnu , Denezine Matheus , Rodrigues Lívia Cardoso da Silva , Assine Mario Luis , Antonietto Lucas Silveira 
Published: September 2021

AbstractHerein is reported the first occurrence of ostracodes from the Iapó Formation, an uppermost Ordovician unit of the Rio Ivaí Group in the Paraná basin, Brazil. Two ostracode species were identified in the Três Barras Farm section:Harpabollia harparum(Troedsson, 1918) andSatiellina paranaensisAdôrno and Salas in Adôrno et al., 2016 were recovered from dropstone-bearing shale overlying glaciogenic diamictites, a feature typical of Hirnantian (uppermost Ordovician) strata throughout Gondwana. The taxonomy of the GenusHarpabollia, as well as its type speciesHarpabollia harparum, was reviewed, and emended and new diagnoses were respectively proposed for each taxon. Occurrences ofHarpabollia harparumandSatiellinaspecies were common in areas influenced by cold waters. Additionally, the occurrence ofHarpabollia harparum, an index species to the uppermost Ordovician of several stratigraphic units in Baltica and southern Gondwana, allowed us to infer a Hirnantian age for the deposits of the Iapó Formation. Other than being associated withHarpabollia harparumin Iapó Formation of the Paraná basin,Satiellina paranaensisis also found in lower levels of the Vila Maria Formation; therefore, these are also considered Hirnantian in age. Above these lower levels of the Vila Maria Formation, a well-dated Rhuddanian (lowermost Llandovery, Silurian) palynomorph assemblage is observed within the formation. These occurrences are evidence of a continuous process of sedimentary deposition during the Ordovician–Silurian transition in the Paraná basin.
ΕΠΙΒΟΛΗ ΤΗΣ ΔΙΑΝΟΙΑΣ: REFLECTIONS ON THE FOURTH EPICUREAN CRITERION OF TRUTH
Authors: Robitzsch Jan Maximilian 
Published: September 2021

AbstractThis paper discusses ἐπιβολαὶ τῆς διανοίας, which later Epicureans are supposed to have elevated to a fourth criterion of truth to complement perceptions, preconceptions and feelings. By examining Epicurus’ extant writings, the paper distinguishes three different senses of the term: ‘thought in general’, ‘act of attention’ and ‘mental perception’. It is argued that only the sense ‘mental perception’ yields a plausible reading of ἐπιβολαί as a criterion of truth. The paper then turns to the textual evidence on ἐπιβολαί in later authors. While the term ἐπιβολή (or its Latin equivalent) is not used by Cicero, Lucretius and Philodemus in the sense of mental perception, it is argued that this still is the most plausible way of understanding ἐπιβολή as a criterion of truth.
Shell morphometric ratios as a tool for taxonomic determination in gastropods: a case study inNerita(Gastropoda, Neritidae)
Authors: Altomari Leslie Nascimento , Alves Brunno Henryco Borges , Santos Weverton John Pinheiro dos , Barros Mara Rúbia Ferreira , Herrmann Marko , Bezerra Andréa Magalhães , Chagas Rafael Anaisce das 
Published: September 2021

AbstractIn the study, we compare the shell shape morphometrics in four species of neritid gastropods (Nerita fulgurans,Nerita tessellata,Nerita pelorontaandNerita versicolor), collected in Accra Beach (Barbados Island). We tested the hypothesis that the morphometric ratios can be used as a tool in the taxonomic determination among these four species of neritids. For this we determine the morphometric ratios from the external (length, height, width) and internal (shell aperture length, shell aperture width) measures. A principal component analysis (PCA) was used to determine which ratios were significant, and subsequently the proposed hypothesis was tested using the Kruskal–Wallis test. The morphometric ratios AW/H and AL/L were decisive in distinguishing the four species of neritids studied. In this study, the hypothesis of the efficacy of the use of shell morphometric ratios as an instrument in taxonomic studies was corroborated for the four species. Due to its low cost, this methodology can be applied in the recognition of species that have lost their external characteristics such as operculum, spire or colour and also in the identification of fossil specimens.
Regular recreational Cannabis users exhibit altered neural oscillatory dynamics during attention reorientation
Authors: Springer Seth D. , Spooner Rachel K. , Schantell Mikki , Arif Yasra , Frenzel Michaela R. , Eastman Jacob A. , Wilson Tony W. 
Published: September 2021

AbstractBackgroundCannabis is the most widely used illicit drug in the United States and is often associated with changes in attention function, which may ultimately impact numerous other cognitive faculties (e.g. memory, executive function). Importantly, despite the increasing rates of cannabis use and widespread legalization in the United States, the neural mechanisms underlying attentional dysfunction in chronic users are poorly understood.MethodsWe used magnetoencephalography (MEG) and a modified Posner cueing task in 21 regular cannabis users and 32 demographically matched non-user controls. MEG data were imaged in the time−frequency domain using a beamformer and peak voxel time series were extracted to quantify the oscillatory dynamics underlying use-related aberrations in attentional reorienting, as well as the impact on spontaneous neural activity immediately preceding stimulus onset.ResultsBehavioral performance on the task (e.g. reaction time) was similar between regular cannabis users and non-user controls. However, the neural data indicated robust theta-band synchronizations across a distributed network during attentional reorienting, with activity in the bilateral inferior frontal gyri being markedly stronger in users relative to controls (p's < 0.036). Additionally, we observed significantly reduced spontaneous theta activity across this distributed network during the pre-stimulus baseline in cannabis users relative to controls (p's < 0.020).ConclusionsDespite similar performance on the task, we observed specific alterations in the neural dynamics serving attentional reorienting in regular cannabis users compared to controls. These data suggest that regular cannabis users may employ compensatory processing in the prefrontal cortices to efficiently reorient their attention relative to non-user controls.
COVIDIAGNOSTIX: health technology assessment of serological tests for SARS-CoV-2 infection
Authors: Tomaiuolo Rossella , Derrico Pietro , Ritrovato Matteo , Locatelli Massimo , Milella Frida , Restelli Umberto , Lago Paolo , Giuliani Francesco , Banfi Giuseppe 
Published: September 2021

Abstract

Objective
In vitro diagnostic tests for SARS-COV-2, also known as serological tests, have rapidly spread. However, to date, mostly single-center technical and diagnostic performance's assessments have been carried out without an intralaboratory validation process and a health technology assessment (HTA) systematic approach. Therefore, the rapid HTA for evaluating antibody tests for SARS-COV-2 was applied.

Methods
The use of rapid HTA is an opportunity to test innovative technology. Unlike traditional HTA (which evaluates the benefits of new technologies after being tested in clinical trials or have been applied in practice for some time), the rapid HTA is performed during the early stages of developing new technology. A multidisciplinary team conducted the rapid HTA following the HTA Core Model® (version 3.0) developed by the European Network for Health Technology Assessment.

Results
The three methodological and analytical steps used in the HTA applied to the evaluation of antibody tests for SARS-COV-2 are reported: the selection of the tests to be evaluated; the research and collection of information to support the adoption and appropriateness of the technology; and the preparation of the final reports and their dissemination. Finally, the rapid HTA of serological tests for SARS-CoV-2 is summarized in a report that allows its dissemination and communication.

Conclusions
The rapid-HTA evaluation method, in addition to highlighting the characteristics that differentiate the tests from each other, guarantees a timely and appropriate evaluation, becoming a tool to create a direct link between science and health management.
Environmental factors associated with freshwater recreational water quality in Niagara Region, Ontario, Canada: A path analysis
Authors: Sanchez J. Johanna , Young Ian , Heasley Cole , Kelly Jeremy , Habjan Anthony , Waterhouse Ryan , Tustin Jordan 
Published: September 2021

Abstract
Escherichia coli concentration levels in recreational water are used by beach managers to evaluate the risk of gastrointestinal illness among beachgoers. We examined the relationship between specific environmental factors and E. coli concentration in recreational beaches in the Niagara Region. We analysed E. coli geometric means collected from eight beaches from two of the Great Lakes in the Niagara Region in Ontario, between 2011 and 2019. We applied path analysis to evaluate the relationship between the environmental factors and E. coli concentrations, including whether effects were direct or indirect via a mediator. Turbidity was found to be an important mediator for the indirect effect of environmental variables overall and in beach-specific models. Rainfall and streamflow had a positive indirect effect on E. coli via turbidity and a direct effect in five out of seven beach models. Streamflow was also a mediator for the indirect effect of previous day air temperature in five out of seven models. In three subset models, outfall E. coli concentration was a mediator for the effect of the environmental factors. Using a novel methodological approach, this study identifies important relationships and pathways that predict beach E. coli concentration in freshwater beaches located on two of the Great Lakes.
New evidence for the design and urban integration of the Forum of Caesar, Forum of Augustus, Curia Julia, and Chalcidicum
Authors: Fuchs Wladek 
Published: September 2021

AbstractThis article presents a new hypothesis about the urban arrangement and function of the southeast end of the Forum of Caesar, together with the Forum of Augustus, the Curia Julia and the present-day church of SS. Luca e Martina, when the area was finalized in 2 BCE. The analysis focuses on the geometric framework of the extant structures and the topography of the site and, in relation to them, a new interpretation of the historical records and the archaeological data. It demonstrates that Augustus and his architects authored the urban composition and architectural forms of the entire area, including making significant changes to the original design of the Forum of Caesar. The article also shows that the site of the church of SS. Luca e Martina was the location of the Augustan Chalcidicum, which served as the monumental entrance to the first two Imperial fora.
The Effect of Aerobic Exercise on Concussion Recovery: A Pilot Clinical Trial
Authors: Snyder Aliyah R. , Greif Sarah M. , Clugston James R. , FitzGerald David B. , Yarrow Joshua F. , Babikian Talin , Giza Christopher C. , Thompson Floyd J. , Bauer Russell M. 
Published: September 2021

AbstractObjective:The purpose of this study was to pilot safety and tolerability of a 1-week aerobic exercise program during the post-acute phase of concussion (14–25 days post-injury) by examining adherence, symptom response, and key functional outcomes (e.g., cognition, mood, sleep, postural stability, and neurocognitive performance) in young adults.Method:A randomized, non-blinded pilot clinical trial was performed to compare the effects of aerobic versus non-aerobic exercise (placebo) in concussion patients. The study enrolled three groups: 1) patients with concussion/mild traumatic brain injury (mTBI) randomized to an aerobic exercise intervention performed daily for 1-week, 2) patients with concussion/mTBI randomized to a non-aerobic (stretching and calisthenics) exercise program performed daily for 1-week, and 3) non-injured, no intervention reference group.Results:Mixed-model analysis of variance results indicated a significant decrease in symptom severity scores from pre- to post-intervention (mean difference = −7.44, 95%CI[−12.37, −2.20]) for both concussion groups. However, the pre- to post-change was not different between groups. Secondary outcomes all showed improvements by post-intervention, but no differences in trajectory between the groups. By three months post-injury, all outcomes in the concussion groups were within ranges of the non-injured reference group.Conclusions:Results from this study indicate that the feasibility and tolerability of administering aerobic exercise via stationary cycling in the post-acute time frame following post-concussion (14–25 days) period are tentatively favorable. Aerobic exercise does not appear to negatively impact recovery trajectories of neurobehavioral outcomes; however, tolerability may be poorer for patients with high symptom burden.
Out of the Shadows: The Women Countering Insurgency in Nigeria
Authors: Agbiboa Daniel E. 
Published: September 2021

AbstractMoving beyond the focus on violenceagainstwomen and violence committedbywomen, this article interrogates violencecounteredby women. The article sheds new light on the gendered practices of counterinsurgency in northeast Nigeria, with critical attention to why women joined the civilian resistance to the Boko Haram insurgency and their complex role and agency as local security providers. Using the voices and lifeworlds of women who joined the Civilian Joint Task Force (yan gora) in Borno State as well as the Vigilante Group Nigeria and Hunters Association (kungiya marhaba) in Adamawa State, the article underscores the layered and gender-bending role of women as frontline fighters, knowledge brokers, state informants, and producers of vigilante technologies. The article finds that women counterinsurgents mobilized after Boko Haram shifted its strategy toward using female insurgents, especially as suicide bombers. Women joined the war against Boko Haram for complex reasons, including personal loss, revenge, family ties, community attachment, patriotism, and a collective yearning for normalcy.
Contribution of Marine Phytoplankton and Bacteria to Alkalinity: An Uncharacterized Component
Authors: Lee Chang‐Ho , Lee Kitack , Ko Young Ho , Lee Joon‐Soo 
Published: September 2021

AbstractThe contributions of phytoplankton and bacteria cells to alkalinity (AT) were measured in seawater samples obtained from 205 locations including the East Sea, the North Pacific Ocean, the Bering Sea, the Chukchi Sea, and the Arctic Ocean. We attributed the differences in AT values measured for unfiltered versus filtered samples to AT components contributed by phytoplankton (retained on a 0.7 μm filter) and by phytoplankton and bacteria combined (AT−BIO; retained on a 0.45 μm filter). The AT−BIO values reached 10–19 μmol kg−1 in the East Sea and the North Pacific Ocean, and progressively decreased to a level of 1 μmol kg−1 with distance toward the Arctic Ocean. The study shows that the AT−BIO values are non‐negligible in coastal and open ocean environments and need to be considered when assessing the accuracy of carbon parameters calculated using the thermodynamic models that use measured AT as an input parameter.
Observing Posteruptive Deflation of Hydrothermal System Using InSAR Time Series Analysis: An Application of ALOS‐2/PALSAR‐2 Data on the 2015 Phreatic Eruption of Hakone Volcano, Japan
Authors: Doke Ryosuke , Mannen Kazutaka , Itadera Kazuhiro 
Published: September 2021

AbstractFrom June 29 to July 1, 2015, a phreatic eruption occurred in Owakudani, the largest fumarole area in Hakone volcano, Japan. In this study, an interferometric synthetic aperture radar (InSAR) time series analysis of the Advanced Land Observing Satellite‐2 (ALOS‐2)/Phased Array type L‐band Synthetic Aperture Radar‐2 (PALSAR‐2) data was performed to measure deformation after the eruption. The results show that the central cones of the volcano have subsided since the eruption and its deflation source is located beneath the previously estimated bell‐shaped conductor, which is considered as a sealing layer confining a pressurized hydrothermal reservoir. Therefore, the InSAR results demonstrate the deflation of the hydrothermal system beneath the volcano. One possible cause of this deflation is compaction due to a decrease in pore pressure caused by rupture and fluid migration during and after the eruption.
Highly Siderophile Element and Os Isotope Results From the Structurally Atypical Batin Dunite in the Wadi Tayin Massif of the Oman Ophiolite
Authors: Klaessens Delphine , Reisberg Laurie , Jousselin David ,   the Oman Drilling Project Science Team
Published: September 2021

AbstractDunites in ophiolites form by pyroxene dissolution and olivine precipitation during melt‐peridotite interaction. We present structural and geochemical data on peridotites from the Batin region (Wadi Tayin massif) of the Oman ophiolite, where an exceptionally large (∼9.5 km long) dunite body was sampled by the ICDP Oman Drilling Project (BA4A borehole). 900–1,200 m beneath the petrological Moho, this dunite is overlain by harzburgite hosting pyroxene‐depleted and pyroxene‐rich bands. Highly siderophile elements (HSEs) and Os isotopes, excellent tracers of melt flow through peridotites, were measured in dunites and interspersed harzburgites from BA4A borehole. The Batin dunite is structurally and chemically distinct from dunites from the Moho Transition Zone and basal section of the ophiolite, resembling instead sparse dunite veins in the main mantle section. Batin dunites have fairly uniform Os, Ir, and Ru abundances, but Pd and Pt contents increasing with depth. One deep dunite sample has initial 187Os/188Os more radiogenic than MORB. Though the limited number of data demands prudence, we suggest that the Batin dunite formed from a large pulse of radiogenic melts, whose flow was impeded ∼1,200 m below the Moho. As these melts ascended, they may have lost their radiogenic character and relative Pt and Pd enrichment through interaction with peridotites, which have much higher HSE contents than melts. Such interaction would also diminish the under‐saturation in pyroxene of the melts, eliminating their capacity to sufficiently dissolve the pyroxene of the host harzburgite to form dunite, thus explaining the upper limit of the dunite at ∼900 m.