bluuebunny/crossref_metadata_2025 huggingface dataset:
The kidney conundrum: Evaluating the value of ifosfamide in cancer therapeutics.
Authors: Concepción-Zavaleta Marcio José , Quiroz-Aldave Juan Eduardo , Durand-Vásquez María del Carmen , Chávez-Vásquez Freddy Shanner , Rodríguez-Angulo Alexandra Noelia , Gonzáles-Saldaña Sonia Elizabeth , Alcalde-Loyola Carlos César , Coronado-Arroyo Julia Cristina , Zavaleta-Gutiérrez Francisca Elena , Concepción-Urteaga Luis Alberto , Haro-Varas Juan Carlos
Published: August 2023

Introduction: Ifosfamide is an alkylating chemotherapeutic
agent used in the treatment of various neoplasms. Its main adverse
effects include renal damage. Methods: A comprehensive review
was conducted, including 100 articles from the Scielo, Scopus, and
EMBASE databases. Results: Ifosfamide-induced nephrotoxicity is
attributed to its toxic metabolites, such as acrolein and
chloroacetaldehyde, which cause mitochondrial damage and oxidative
stress in renal tubular cells. An analysis of reported cases in the
literature showed an average age of 29 years, with no gender
predominance. In oncology patients treated with ifosfamide, a mortality
rate of 13% has been observed. Currently, no fully effective
therapeutic strategy exists for preventing ifosfamide-induced
nephrotoxicity; however, hydration, forced diuresis, and other
interventions are employed to limit renal damage. Long-term renal
function monitoring is essential for patients treated with ifosfamide.
Conclusions: Ifosfamide exhibits a broad spectrum of
antitumoral activity but may induce nephrotoxicity, adversely affecting
the prognosis of oncology patients. Therefore, a thorough evaluation of
the risks and benefits associated with its use is necessary.
Climate suitability analyses compare the distributions of invasive knotweeds in Europe and North America with the source localities of their introduced biological control agents
Authors: Andersen Jeremy , Elkinton Joseph S
Published: August 2023

Climate suitability analyses based on ecological niche modeling provide
a powerful tool for biological control practitioners to assess the
likelihood of establishment of different candidate agents prior to their
introduction in the field. These same analyses could also be performed
to understand why some agents establish more easily than others. The
release of three strains of Aphalara itadori (Shinji) (Hemiptera:
Pysllidae), each from a different source locality in Japan, for the
biological control of invasive knotweed species, Reynoutria spp. Houtt.
(Caryophyllales: Polygonaceae), provides an important opportunity to
compare the utility of climate suitability analyses for identifying
potential climate-based limitations for successful biological control
introductions. Here we predict climate suitability envelopes for three
target species of knotweed in Europe and two target species of knotweed
in North America and compare these suitability estimates for each of
these species to the source localities of each A. itadori strain. We
find that source locality of one strain, the Kyushu strain, has
little-to-no suitability compared to other locations in Japan based on
knotweed records from Europe, supporting an earlier study based on North
American Japanese knotweed records. The source locality of a second
strain, the Murakami strain, was predicted to have medium-to-high
suitability based on records of knotweeds from North America. In
contrast, European records of R.  bohemica Chrtek & Chrtková and R.
sachalinensis (F. Schmidt) Nakai predicted no suitability for this
locality compared to other locations in Japan, while European records
for R. japonica Houtt. predicted low suitability. The source locality of
the final strain, the Hokkaido strain, was predicted as having
medium-to-high suitability based on knotweed records of all examined
species from both North America and Europe.
Formation Mechanisms and Edible Applications of Molecular Compound (MC) Forming Mixture Systems of Saturated-Unsaturated Mixed-Acid Triacylglycerols
Authors: Taguchi Ken , Bayes-Garcia Laura , Sato Kiyotaka , Zhang Lu , Yoshikawa Shinichi , Kaneko F , Yamamoto Yoshinori , Watanabe Shimpei
Published: August 2023

The triacylglycerols (TAGs) containing saturated (Sat) -unsaturated (U)
fatty acid moieties (Sat-U mixed acid TAGs) are widely present in most
natural fats and employed in many industrial applications. The mixing
behavior of different Sat-U mixed acid TAGs acts important roles in the
physicochemical properties TAG-based materials. Among the three main
mixing states of miscible, eutectic and molecular compound (MC) forming
mixtures, fundamental research has been conducted on the MC crystals
formed by different Sat-U mixed acid TAGs to understand the structures,
phase behavior and crystallization properties. This article reviews
recent studies on the complex thermodynamic, kinetic and structural
factors that affect the formation of MC crystals in binary and ternary
mixtures of Sat-U mixed acid TAGs (SatUSat, SatSatU, USatU and UUSat)
through specific molecular interactions among the component TAGs.
Furthermore, the application of the MC-forming mixtures containing cacao
butter to new types of cocoa butter alternative is reviewed.
Geomicrobiological characterization of the evaporitic ecosystem in the hypersaline lake Laguna Verde (Andean Puna, Northwestern Argentina)
Authors: Saona Luis Alberto , Villafañe Patricio , Carrizo Daniel , Gonella Carlos Console , Farías María Eugenia
Published: August 2023

Laguna Verde~̵́s dome-shaped structures represent one of the most
important Andean Microbial Ecosystems (AMEs) reported in the Central
Andes. To date, this system lacks any kind of geomicrobiological
research, so the following article represents the first study of these
dome-shaped structures and their associated taxa. For this purpose, a
chemical analysis of the water body, multiscale characterization of the
domes, and analysis of the associated microorganisms were carried out.
The lake’s alkaline waters rich in various minerals and its location at
the margin of the Antofalla salt flat, fed by alluvial fans and
hydrothermal input, provide favorable conditions for mineral
precipitation and support for microorganism’s activity. Laguna Verde´s
dome-shaped structures show an internal heterogeneous mesostructure
composed of three zones: microcrystalline, organic (orange and green
layers) and crystalline. The green layer of the organic zone is
predominantly composed of Proteobacteria, Bacteroidetes, and
Cyanobacteria, while the orange layer is mostly inhabited by
Cyanobacteria. The results of the study suggest that oxygenic
photosynthesis performed by Cyanobacteria is the main carbon fixation
pathway in the microbial community, supported by carbon isotopic ratios
of specific biomarkers. This finding highlights the important role that
Cyanobacteria play in this ecosystem.
Investigating Exhumation of the High Tatra Mountains: Implications for the Western Carpathians, Slovakia by Zircon and Apatite (U-Th)/He Thermochronometry
Authors: Campos Daniel , Catlos Elizabeth , Kohut Milan , Broska Igor , Stockli Daniel F
Published: August 2023

The Carpathian Mountains form the large collisional orocline stretching
from Vienna, Austria to Bucharest, Romania. The Western and Inner
Carpathians include the High Tatra mountains, which exhibit the highest
elevation peaks of the entire mountain belt. Here we studied the
exhumation history of an area near Gerlachovský štít, the
topographically highest point of the High Tatras. Granitoid samples from
different elevations were collected and analyzed for apatite (U-Th)/He
(n=12; 5-6 aliquots) and zircon (U-Th)/He ages (n=22; 2-4 aliquots). In
addition, apatite U-Pb dating by LA-ICPMS was conducted to complement
existing zircon U-Pb dates to track the evolution of the High Tatra
Mountains from the onset of magmatism during the Variscan orogeny. The
(U-Th)/He apatite ages show a general increase from 9.6 ± 0.6 Ma to 31.9
± 2.0 Ma to from lower to higher elevations. The zircon (U-Th)/He ages
are more scattered and range from 13.5 ± 1.1 Ma to 47.8 ± 3.9 Ma. These
reported ages agree with published low-temperature thermochronometric
results. However, the apparent average exhumation rates for zircon and
apatite (U-Th)/He data derived from the age-to-elevation profile near
Gerlachovský štít are inconsistent with a proposed rapid early Miocene
exhumation pulse. Apatite U-Pb ages obtained in this study are between
337.61 ± 2.21 Ma and 372.74 ± 3.09 Ma. These ages agree with previously
reported zircon dates from the same or nearby samples. This observation
is indicative of rapid cooling of the granitoids following
crystallization. However, the greatest variance in both data sets were
observed from samples collected near the sub-Tatra fault and along the
Ružbachy fault. This observation was used to confine regions about these
major structures that have distinct exhumation records. The results of
the (U-Th)/He ages captures both pre- and post-Miocene slow cooling
interrupted by early Miocene tectonic unroofing. Overall, these results
are used to outline the earliest tectonic history of the High Tatra
Mountains until the onset of more recent exhumation and impacts our
understanding of the origin and development of this section of the
arcuate mountain belt.
Spatiotemporal Variability in the Annual Sea Level Cycle Along the Global Coast
Authors: Barroso Amanda , Wahl Thomas , Li Sida , Enríquez Alejandra Rodríguez , Morim Joao , Dangendorf Sönke , Piecuch Christopher G. , Thompson Philip Robert
Published: August 2023

Changes in the seasonal sea level cycle (SSLC) can modulate the flooding
risk along coastlines. Here, we use harmonic analysis to quantify
changes in the amplitude and phase of the annual component of the sea
level cycle at 663 tide gauge locations along the global coastline where
long records are available. We identify coastal hotspots by applying
clustering methods revealing coherent regions with similar patterns of
variability in the annual sea level cycle (ASLC). Results show that for
most tide gauges the annual amplitude reached its maximum after 1970 and
its peak typically occurs during the fall season of the respective
hemisphere. Many tide gauges exhibit non-stationarity in the annual
cycle in terms of amplitude and/or phase. For example, at 125 tide
gauges we find significant trends in the amplitude (either increasing or
decreasing) while several sites (36 in total), mostly in the
Mediterranean and around Pacific islands, experienced phase changes
leading to shifts in the timing of the peak of the annual cycle by more
than a month. Our results highlight the importance of accounting for
potential non-stationarity in seasonal mean sea level (MSL) cycles along
coastlines.
Scale-dependent air-sea exchange in the polar oceans: floe-floe and floe-flow coupling in the generation of ice-ocean boundary layer turbulence
Authors: Brenner Samuel Dale , Horvat Christopher , Hall Paull , Piccolo Anna Lo , Fox-Kemper Baylor , Labbé Stéphane , Dansereau Véronique
Published: August 2023

Sea ice is a heterogeneous, evolving mosaic comprised of many individual
floes, which vary in spatial scales from meters to tens of kilometers.
Both the internal dynamics of the floe mosaic (floe-floe interactions),
and the evolution of floes under ocean and atmospheric forcing
(floe-flow interactions), determine the exchange of heat, momentum, and
tracers between the lower atmosphere and upper polar oceans. Climate
models do not represent either of these highly variable interactions. We
use a novel, high-resolution, discrete element modelling framework to
examine the production of ice-ocean boundary layer (IOBL) turbulence
within a domain approximately the size of a climate model grid. We show
floe-scale effects cause a marked increase in IOBL turbulent production
relative to continuum model approaches, and provide a method of
representing that turbulence using bulk parameters related to the
spatial variance of the ice and ocean: the floe size distribution and
the ocean kinetic energy spectrum.
Satellite Evidence for Strengthened M2 Internal Tides in the Past 30 Years
Authors: Zhao Zhongxiang
Published: August 2023

Satellite altimetry sea surface height (SSH) measurements from 1993 to
2022 are used to show the strengthened mode-1 M2 internal tides in the
past 30 years. Two mode-1 M2 internal tide models M9509 and M1019 are
constructed using the data in 1995-2009 and 2010-2019, respectively. The
results show that the global mean M2 internal tides strengthened by
6.6% in energy. However, the internal tide strengthening is spatially
inhomogeneous. Significantly strengthened internal tides are observed in
a number of regions including the Aleutian Ridge and the
Madagascar-Mascarene region. Weakened internal tides are observed in the
central Pacific. On a global average, M1019 leads M9509 by about 10o (20
minutes in time), suggesting that the propagation speeds of M2 internal
tides increased. M9509 and M1019 are evaluated using independent
altimetry data in 1993-1994 and 2020-2022. The results show that M9509
and M1019 perform better for the data in 1993-1994 and 2020-2022,
respectively.
3D geomechanical modeling of induced seismic slips considering realistic reservoir geometry with intersecting faults
Authors: Ruan Jingming , Ghose Ranajit , Mulder Wim A.
Published: August 2023

Geomechanical simulations of induced seismicity generally involve a
simple reservoir geometry in terms of reservoir structure and fault
distribution. Because the depletion of the reservoir controls the
incremental stress field, the geometry of the reservoir has a
substantial influence on the occurrence of induced earthquakes. We
develop geomechanical models based on a realistic geological model of
the reservoir in the Groningen gas field. The model captures the main
characteristics of the reservoir structures in the Zeerijp region.
Through quasi-static and dynamic simulations, we observe that a smaller
intersection angle between the two normal faults in the Zeerijp region
causes an increase in the incremental Coulomb stress at the lower
reservoir juxtaposition adjacent to the intersection. As a result, this
intersection angle strongly affects the location of the initial seismic
slip, the rupture pattern, and the location of the maximum slip. Our
simulation produces an earthquake of magnitude MW 3.0, due to fault
reactivation occurring at a reservoir depletion value of 26 MPa. These
values are similar to those for the Zeerijp 2018 earthquake of ML 3.4.
The location of the simulated rupture is close to the inverted
hypocenter location for the 2018 earthquake. Our results suggest that it
is crucial to incorporate realistic reservoir structures when simulating
induced seismicity in a specific region.
A Near-Vertical Slab Tear in the Southeastern Solomon Islands
Authors: Cheng Ching-Yu , Kuo-Chen Hao , Brown Dennis , Sun Wei-Fang , Ku Chin-Shang , Kuo Yu-Ting , Huang Bor-Shouh , Chen Yue-Gau
Published: August 2023

The southeastern part of the Solomon Islands, a highly seismically
active area in the southern Pacific, experienced two moderate
earthquakes (Mw 6.3 and 6.0) on January 27th and 29th, 2020. The
regional seismic network, operational since October 2018, recorded the
entire foreshock-main-shock-aftershock sequence, allowing for a new 1D
velocity model and relocation of events. Based on the spacial
distribution of the foreshock-aftershock sequence, together with focal
mechanism data from the Global CMT database, we suggest that there is a
near-vertical slab tear at the southern end of the South Solomon
subducting slab, abutting a zone of strike-slip faulting that links it
to the Vanuatu subduction zone to form a Subduction-Transform Edge
Propagator fault. Our new data also indicates that a seismic gap occurs
at depths from 25 to 35 km within the southern part of the South Solomon
slab.
Long-term surface impact of Hunga Tonga-Hunga Ha'apai-like stratospheric water vapor injection
Authors: Jucker Martin , Lucas Chris , Dutta Deepashree
Published: August 2023

The amount of water vapor injected into the stratosphere after the
eruption of Hunga Tonga-Hunga Ha’apai (HTHH) was unprecedented, and it
is therefore unclear what it might mean for surface climate. We use
climate model simulations to assess the long-term surface impacts of
stratospheric water vapor (SWV) anomalies caused by volcanic eruptions.
The simulations show that the SWV anomalies lead to strong and
persistent warming of Northern Hemisphere landmasses in boreal winter,
and austral winter cooling over Australia. Thus, SWV forcing from
volcanic eruptions like the one from Hunga Tonga-Hunga Ha’apai can have
surface impacts on a decadal timescale. We also emphasize that the
surface response to SWV anomalies is more complex than simple warming
due to greenhouse forcing and is influenced by factors such as regional
circulation patterns and cloud feedbacks. Further research is needed to
fully understand the multi-year effects of SWV anomalies and their
relationship with climate phenomena like El Niño Southern Oscillation.
The Sun-Earth-Moon Connection: I–3D Global Kinetic Simulation
Authors: Baraka Suleiman
Published: August 2023

Context:
The complex interplay between the Solar Wind and the lunar surface serves as a quintessential example of space weathering. However, uncertainties persist regarding the influence of plasma originating from Earth’s ionosphere, necessitating a comprehensive understanding of its quantitative impact. Hitherto, the dearth of reliable models has impeded accurate computation of ion flux from Earth to the Moon under varying solar wind conditions.
Aim: The objective of this study is to adapt a kinetic model for the challenging conditions of having both the Earth and the Moon in a single simulation box.
Methods:IAPIC, the Particle-In-Cell Electromagnetic Relativistic Global Model was modified to handle the Sun-Earth-Moon system. It employs kinetic simulation techniques that have proven invaluable tools for exploring the intricate dynamics of physical systems across various scales while minimizing the loss of crucial physics information such as backscattering.
Results: The modeling allowed to derive the shape and size of the Earth’s magnetosphere and allowed tracking the O+ and H+ ions escaping from the ionosphere to the Moon: O+ tends to escape towards the dayside magnetopause, while H+ travels deeper into the magnetotail, extending up to the Lunar surface. In addition, plasma temperature anisotropy and backstreaming ions were simulated, allowing for future comparison with the experiment.
Conclusion: This study shows how a kinetic model can successfully be applied to study the transport of ions in the Earth-Moon environment. A second paper will detail the effect on the Lunar environment and the impact on the Lunar water.
Improvements in September Arctic sea ice predictions via assimilation of summer CryoSat-2 sea ice thickness observations
Authors: Zhang Yong-Fei , Bushuk Mitchell , Winton Michael , Hurlin William , Gregory William , Landy Jack Christopher , Jia Liwei
Published: August 2023

Because of a spring predictability barrier, the seasonal forecast skill
of Arctic summer sea ice is limited by the availability of melt-season
sea ice thickness (SIT) observations. The first year-round SIT
observations, retrieved from CryoSat-2 from 2011–2020, are assimilated
into the GFDL ocean–sea ice model. The model’s SIT anomaly field is
brought into significantly better agreement with the observations,
particularly in the Central Arctic. Although the short observational
period makes forecast assessment challenging, we find that the addition
of May–August SIT assimilation improves September local sea ice
concentration (SIC) and extent forecasts similarly to the early addition
of SIC assimilation. Although most regional forecasts are improved by
SIT assimilation, the Chukchi Sea forecasts are degraded. This
degradation is likely due to the introduction of negative correlations
between September SIC and earlier SIT introduced by SIT assimilation,
contrary to the increased correlations found in other regions.
A Two-Column Model Parameterization for Subgrid Surface Heterogeneity Driven Circulations
Authors: Waterman Tyler , Bragg Andrew D. , Hay-Chapman Finley Miles , Dirmeyer Paul A , Fowler Megan , Simon Jason Scot , Chaney Nathaniel W.
Published: August 2023

Earth system models currently struggle to account for the complex
effects that land surface heterogeneity can have on land-atmosphere
interactions. Subgrid land surface heterogeneity is currently not well
accounted for in land-atmosphere interactions in earth system models.
There have been attempts to include the impact of this heterogeneity on
the atmosphere, but they ignore the development of coherent secondary
circulations that can be driven by spatial differential surface heating.
A wealth of literature, particularly large-eddy simulation (LES) based
studies, shows that these circulations have significant impacts on the
development and organization of clouds. In this work, we describe a
two-column model with a parameterized circulation driven by atmospheric
virtual potential temperature profiles, differences in near surface
temperature between the two columns, patterns of surface heterogeneity,
and the mean background wind. Key aspects of the proposed model
structure are compared with LES output, and the model is then
implemented between two otherwise independent single column models.
While some avenues for improvement exist, when the circulations are
parameterized, we see increased cloud development and realistic changes
to the mean profiles of temperature and moisture. The proposed model
qualitatively matches expectations from the literature and LES, and
points to the potential success of its future implementation in coarse
grid models.
40Ar/39Ar Age and Structural Constraints on Permian-Triassic and Jurassic Tectono-Metamorphic and Exhumation Phases in the Korean Collision Belt and Tectonic Implications
Authors: Jong Koen De , Ruffet Gilles , Han Seokyoung
Published: August 2023

The Korean Collision Belt originally constituted a single coherent
southwards-thinning tectonic wedge formed by accretion of the
Qinling-type Barrovian metamorphic Jingok and Samgot units (Yeoncheon
Complex) and Taean Formation onto the Sino–Korean Craton’s southern
extension (Precambrian Gyeonggi Massif) while being underthrust by the
South China Block. Detailed structural geological study and
Ar/Ar laser-probe dating of 47
mineral single-grain and 2 whole-rock samples with both syn-collisional
peak metamorphic and retrograde mineral assemblages reveal a prolonged
tectonic evolution from the Devono–Carboniferous pre-collisional stage
(375–370 Ma; ~315 Ma) to the Midde–Late Jurassic
reactivation of the Permian–Triassic wedge during the second major
exhumation phase of the Gyeonggi Massif (194–165 Ma). The latest
Permian to Late Triassic main orogeny comprises three distinct
correlated tectono-metamorphic phases. Essentially concordant
(pseudo-)plateau ages (255.2–249.9 ± 0.4–0.9 Ma, 1σ) for
main-phase-fabric-forming muscovite and biotite in the garnet,
staurolite and kyanite zones and discordant late-stage andalusite-quartz
veins (Jingok Unit) show fast cooling during exhumation from
~30 km to ≤12.5 km. Hornblendes (248.8–247.0 ± 0.6–1.6
Ma, 1σ) in the underlying higher-grade metamorphic, deeper underthrust
Samgot Unit show later cooling. Fabric asymmetry implies cooling and age
differences stem from (S)SE-ward exhumation along low-angle ductile
normal faults. Incipient exhumation of mid-Triassic eclogites (Hongseong
Belt) induced strong tectono-metamorphic reworking of the overriding
plate (242–237 Ma; Yeoncheon Complex, Taean Formation, Gyeonggi
Massif). Structurally downwards increasing resetting of mica (225–220
Ma), retrogression and overprinting by top-to the-north
post-main-phase-shear constrains the Gyeonggi Massif’s further
exhumation and cooling.

Key Points:

Korean Collision Belt: a southwards-tapering tectonic wedge
with discrete tectono-metamorphic phases at 255–247, 245–237, 225–220
Ma

255–247 Ma: fast cooling, rapid exhumation, top-to-SE normal shear;
225–220 Ma: downwards increase retrogression, top-to-N normal shear

245–237 Ma: strong reworking; exhumation mid-Triassic eclogite;
194–165 Ma: final metamorphic reactivation and top-to-N normal shear
Global stratospheric net momentum flux and drag of gravity waves from one year of radio occultations
Authors: Alexander Peter , Torre Alejandro de la , Schmidt Torsten
Published: August 2023

Gravity waves (GW) transport momentum flux (MF) and energy across the
lower, middle and upper atmosphere. Global Positioning System (GPS)
radio occultation (RO) is one of the measuring techniques used onboard
satellites to provide vertical temperature profiles with global and
permanent coverage. These retrievals may be applied in the study of GW.
Some usual analysis methods provide absolute GWMF, but are missing its
net direction. This happens because the procedures cannot deduce the
propagation sense of GW and hence the direction of MF. We therefore
recall here a recently presented method that allows the net calculation
with four close in space and time RO soundings (quartets). We use about
10,000 daily retrievals from March 1, 2022 to February 28, 2023 to study
the seasonal and latitudinal global characteristics of net GWMF in the
height interval from 20 to 35 km. About 600 quartets were found.
The relation among the ring current, subauroral polarization stream, and the geospace plume: MAGE Simulation of the March 31 2001 Super Storm
Authors: Bao Shanshan , Wang Wenbin , Sorathia Kareem , Merkin Viacheslav G. , Toffoletto Frank R. , Lin Dong , Pham Kevin H , Garretson Jeffrey , Wiltberger Michael , Lyon John G. , Michael Adam
Published: August 2023

The geospace plume, referring to the combined processes of the
plasmaspheric and the ionospheric storm-enhanced density (SED)/total
electron content (TEC) plumes, is one of the unique features of
geomagnetic storms. The apparent spatial overlap and joint temporal
evolution between the plasmaspheric plume and the equatorial mapping of
the SED/TEC plume indicate strong magnetospheric-ionospheric coupling.
However, a systematic modeling study of the factors contributing to
geospace plume development has not yet been performed due to the lack of
a sufficiently comprehensive model including all the relevant physical
processes. In this paper, we present a numerical simulation of the
geospace plume in the March 31, 2001 storm using the Multiscale
Atmosphere Geospace Environment model. The simulation reproduces the
observed linkage of the two plumes, which, we interpret as a result of
both being driven by the electric field that maps between the
magnetosphere and the ionosphere. The model predicts two velocity
channels of sunward plasma drift at different latitudes in the dusk
sector during the storm main phase, which are identified as the
sub-auroral polarization stream (SAPS) and the convection return flow,
respectively. The SAPS is responsible for the erosion of the
plasmasphere plume and contributes to the ionospheric TEC depletion in
the midlatitude trough region. We further find the spatial distributions
of the magnetospheric ring current ions and electrons, determined by a
delicate balance of the energy-dependent gradient/curvature drifts and
the E´B drifts, are crucial to sustain the SAPS electric field that
shapes the geospace plume throughout the storm main phase.
On the set of all I-convergent sequences over different spaces
Authors: Banerjee Mandobi , Mandal Manasi
Published: August 2023

In this article we elaborately study certain characteristics of the set of
all -convergent sequences over various topological spaces. Earlier results
of different authors were concerned regarding the closeness property of the
sets: set of all bounded statistically convergent sequences, set of all
bounded statistically convergent sequences of order ?, set of all bounded
I-convergent sequences over the space ?? (??- endowed with the sup-norm)
only. On this context apart from this observation other properties (like
connected and dense) of all three above mentioned sets have not yet been
discussed over any other spaces. Our approach is to examine different
behaviors of the set of all I-convergent sequences over different spaces.
Finally we are able to exhibit a condition over sequence spaces for which
the set of all I-convergent sequences form a closed set.
Some studies of SEP elements in a ring with involution
Authors: Zhao Shiyin , Zhao Dandan , Wei Junchao
Published: August 2023

In this paper, we give some new characterizations of SEP elements and partial
isometries in rings with involution. Especially, we discuss these
characterizations from the perspectives of the existence of solutions to
certain equations, and the form of the general solutions to some equations.
Subordination results for some subclasses of analytic functions using generalized q-Dziok-Srivastava-Catas operator
Authors: El-Ashwah R.M.
Published: August 2023

We introduce two classes of analytic functions related to conic domains,
using a new generalized q-Dziok-Srivastava-Catas operator Dm,s,r q,?,l(m ? N0 =
{0, 1, ..} , r ? s + 1; r, s ? N0, 0 < q < 1, ? ? 0, ? ? 0). Basic
properties of these classes are studied, such as coefficients estimate. For
these new function classes, we establish subordination theorems and also,
point out some new and known consequences of our main results.
Existence and stability analysis of solution for fractional delay differential equations
Authors: Develi Faruk , Duman Okan
Published: August 2023

In this article, we give some results for fractional-order delay differential
equations. In the first result, we prove the existence and uniqueness of
solution by using Bielecki norm effectively. In the second result, we
consider a constant delay form of this problem. Then we apply Burton?s
method to this special form to prove that there is only one solution.
Finally, we prove a result regarding the Hyers-Ulam stability of this
problem. Moreover, in these results, we omit the conditions for contraction
constants seen in many papers.
Spectral properties of the finite system of Klein-Gordon S-wave equations with general boundary condition
Authors: Arpat Esra , Yokus Nihal , Coskun Nimet
Published: August 2023

The spectral characteristics of the operator L is studied where L is defined
within the Hilbert space L2(R+, CV) given by a finite system of
Klein-Gordon type differential equations and boundary condition at general
form. The research of the Klein-Gordon type operator continues to be an
important topic for researchers due to the range of applicability of them in
numerous branches of mathematics and quantum physics. Contrary to the
previous works, we take the potential as complex valued and generalize the
problem to the matrix Klein-Gordon operator case. The spectrum is derived by
determining the Jost function and resolvent operator of the prescribed
operator. Further, we provide the conditions that must be met for the
certain quantitative properties of the spectrum.
A family of chaotic dynamical systems on the cantor dust C × C
Authors: Aslan Nisa , Koparal Diğdem , Saltan Mustafa , Özdemir Yunus , Demir Bünyamin
Published: August 2023

In this paper, we give a family of dynamical systems on the Cantor dust (C C)
by using elements of 4th Dihedral group with shift map and then express them
via code representations of the points of C x C. Moreover, we prove that these
systems are chaotic in the sense of Devaney and also we investigate the
topological equivalence of these dynamical systems.
Identification of organic compounds using artificial neural networks and refractive index
Authors: Kirigiti Innocent , Aminah Nanik , Thomas Samson
Published: August 2023

Identification of chemical compounds has many applications in science and technology. However, this process still relies significantly on the knowledge and experience of chemists. Thus, the development of techniques for faster and more accurate chemical compound identification is essential. In this work, we demonstrate the feasibility of using artificial neural networks to accurately identify organic compounds through the measurement of refractive index. The models were developed based on the refractive index measurements in different wavelengths of light, from UV to the far-infrared region. The models were trained with about 250,000 records of experimental optical constants for 60 organic compounds and polymers from published literature. The models performed with accuracies of up to 98 %, with better performance observed for the refractive index measurements across the visible and IR regions. The proposed models could be coupled with other devices for autonomous identification of chemical compounds using a single-wavelength dispersive measurement.
Study on occupational exposure of medical staff caused by induced radioactivity in the treatment room of medical heavy-ion facility
Authors: Luo Changli , Li Wuyuan , Yang Bo , Su Youwu , Li Yang , Khasanova Shakhboz , Mao Wang , Liu Xuebo , Yan Weiwei , Li Zongqiang
Published: August 2023

Heavy-ion radiotherapy is currently recognized as the most advanced particle
therapy method and is being vigorously promoted and applied worldwide. This
method can rapidly generate radiation and induce radioactivity during
treatment. However, the induced radioactivity, which is the primary
source of exposure for medical staff, does not disappear following therapeutic application in the treatment room. In this study, we investigated the
characteristics, dose rate distribution, and impact of this induced
radioactivity on medical staff in the treatment room (uniform scanning
mode) at Gansu Wuwei Tumor Hospital using experimental measurement and Monte
Carlo simulation. We found that the exposure dose experienced by medical
staff is predominantly related to the irradiated patients for single
irradiation and the irradiated beam delivery system for long-term
irradiation. The half-lives of the main radionuclides ranged from a few
minutes to tens of minutes for single irradiation and from tens of days to
hundreds of days for long-term irradiation. The primary radionuclide contributors are 15O, 11C, 176Ta, and 177W. We also estimated the personal dose
experienced by the medical staff in the treatment room in relation to their
working patterns. The results showed that the maximum annual exposure dose
of medical staff in the horizontal treatment direction under the current
model was 0.728 mSv. We hypothesized that an appropriate increase in the
patient's treatment could reduce the annual exposure dose of medical staff
to 0.650 mSv without changing the total treatment time per day. Finally,
some suggestions were made to reduce the exposure of medical staff to
unwanted radiation.
Evaluation of bisphenol release of different clear aligner materials using the liquid chromatography-mass spectrometry/mass spectrometry method
Authors: Çifçi Özkan Esra , Dumanlı Gök Gülay
Published: August 2023

Objectives

To evaluate the bisphenol release of different brands of clear aligner materials.

Materials and Methods

Six different clear aligner materials were used in this study: Duran (Scheu-Dental GmbH, Iserlohn, Germany), Zendura Flx (Bay Materials LLC, Fremont, CA, USA), Zendura A (Bay Materials), Essix (Raintree Essix Inc., Metairie, LA, USA), Taglus Premium (Laxmi Dental Export Pvt. Ltd, Mumbai, India), and Smart Track (Align Technology, San Jose, CA, USA). The samples were kept in saline solution for 8 weeks in airtight test tubes at 37°C. The ratio between the weights of the samples and the volumes of the dilutions was prepared as 0.1 g/mL as suggested by International Standards Organization parameters. To evaluate the bisphenol release of materials, liquid chromatography-mass spectrometry/mass spectrometry analysis was performed. Data were analyzed with the Kruskal-Wallis test (α = 0.05).

Results

Bisphenol A (BPA) values in Smart Track were found to be significantly higher than the Zendura A and Zendura Flx groups (P = .02, P = .03, respectively). There was no statistically significant difference among the samples in terms of Bisphenol F (BPF) values (P = .108). In terms of Bisphenol S (BPS) values, a statistically significant difference was found (P = .002) indicating that Smart Track released significantly more BPS than Zendura A (P = .001).

Conclusions

Under the test conditions, the amounts of leached BPA, BPF, and BPS were less than the reference dose for daily intake. However, the cumulative effect of these appliances should not be underestimated.
Jenter og gutters vennskap og sosial inkludering ved skolestart
Authors: Håøy Annbjørg , Andreassen Becher Aslaug
Published: August 2023

Fra en casestudie (Becher & Håøy, 2022) henter vi data og utforsker jenter og gutters vennskap og sosiale inkludering ved skolestart. Det empiriske hovedgrunnlaget er fokusgruppe-intervjuer med elever, foreldre og lærere i tillegg til barnas egne bilder. Mulighetene for å finne venner og delta i aktiviteter ser ut til å være noe ulike for jenter og gutter. De fleste guttene er opptatt av fotball, mens jentene engasjerer seg i andre aktiviteter. Det er krevende å finne nye lekekamerater i en stor, ny og ukjent barnegruppe, og både jenter og gutter kan oppleve utenforskap. Studien bekrefter at det kan være lettere for barn å etablere gode sosiale relasjoner, oppleve tilhørighet til fellesskap og føle seg inkludert når de begynner på skolen sammen med kjente barn. Men, vi finner at barna trenger støtte fra lærere for å opprettholde disse relasjonene. Videre finner vi at prestasjoner og ferdigheter vektlegges fra skolestart, noe som kan svekke fokus på sosial inkludering, kontinuitet og trygghet.
English abstract
Girls’ and Boys’ Friendships and Social Inclusion at the Start of School

From a case study (Becher & Håøy, 2022) we use data as we explore girls’ and boys’ friendships and social inclusion at the start of school. The main basis for data is focus group interviews with students, parents, and teachers as well as children’s photos. The possibilities for finding friends are somewhat different for girls and boys. Most of the boys are playing football, while the girls engage in other activities. It is challenging to find new playmates in a large, new, and unknown community of children, and both girls and boys can experience exclusion. The study confirms that it may be easier for children to establish positive social relationships, get a sense of belonging to community and feel included when they start school with children they already know. However, we find that children need support from teachers to maintain established relationships. Furthermore, we find that there is a strong focus on performance and skills from the beginning. This can weaken the emphasis on social inclusion, continuity and belonging at the start of school.
Instrumen Penilaian Keterampilan Menulis Siswa Sekolah Dasar
Authors: Widiastuti Ni Putu Kusuma , Putrayasa Ida Bagus , Adnyana Komang Surya
Published: August 2023

Tujuan dari penelitian ini yakni untuk mengembangkan instrument penilaian keterampilan menulis siswa sekolah dasar. Penelitian ini tergolong kedalam penelitian pengembangan yang dikembangkan dengan menggunakan mode 4D. Subjek yang terlibat dalam penelitian ini yakni 2 orang ahli bidang studi dan ahli pengukuran. Subjek uji coba penelitian yaitu siswa sekolah dasar. Pengumpulan data pada penelitian dilakukan dengan menggunakan teknik observasi, wawancara dan kuisioner. Instrumen yang digunakan dalam mengumpulkan data adalah kuesioner. Setelah instrumen divalidasi oleh ahli, kemudian data akan dianalisis dengan memasukkan skor hasil uji ahli ke dalam tabel tabulasi silang. Mengukur validitas dalam penelitian ini menggunakan rumus Gregory. Dalam mengukur validitas butir digunakan korelasi Product Moment. Uji reliabilitas instrumen pengukuran kemampuan menulis dilakukan menggunakan rumus Alpha Cronbacth. Hasil hitung pengujian validitas instrumen keterampilan menulis siswa mendapatkan nilai 1 sehingga berada pada kriteria sangat tinggi. Jumlah instrumen yang valid sebanyak 5 butir, dengan persentase instrumen valid yaitu 100% (sangat tinggi). Selanjutnya berdasarkan hasil perhitungan didapatkan tingkat reabilitas soal sebesar 0,87 dengan kategori “Sangat Tinggi”. Berdasarkan hasil tersebut dapat disimpulkan bahwa instrument penilaian kemampuan menulis siswa berada dalam kategori valid dan reliabel sehingga layak untuk digunakan dalam proses penilaian.
Nilai Kearifan Lokal dalam E-LKS Berbasis Wayang Sukuraga sebagai Perwujudan Profil Pelajar Pancasila
Authors: Andhini Gina Prilya , Nurasiah Iis , Nurmeta Irna Khaleda
Published: August 2023

Media yang masih digunakan dalam proses pembelajarannya yaitu masih menggunakan buku, dan ternyata hasilnya tidak terjadi peningkatan secara signifikan dalam proses pembelajarannya. Penelitian ini bertujuan untuk menciptakan nilai kearifan lokal dalam E-LKS berbasis wayang sukuraga sebagai perwujudan profil pelajar pancasila. Jenis penelitian ini adalah R&D (Research And Development). Model pengembangan yang diperlukan dalam penelitian ini yaitu bentuk pengembangan ADDIE.  Subjek dari penelitian ini diantaranya yaitu 2 ahli media, 2 ahli materi, guru dan 25 siswa kelas V sekolah dasar. Penelitian ini menggunakan instrument berupa lembar validasi ahli media dan ahli materi untuk mendapatkan hasil uji validitas dan juga angket respon siswa dan guru untuk mendapatkan hasil uji kepraktisan dari E-LKS tersebut. Hasil dari penelitian ini menunjukan bahwa penilaian ahli media dan ahli materi dihasilkan nilai sebesar 90,5 % d yang berarti pada rentang 81%-100% yaitu berada pada kategori Sangat Valid. Respon guru sebesar 89.60% dan skor dari siswa sebesar 80%. Jadi, diperoleh rata-rata skor guru dan siswa sebesar 85 % yang berarti E-LKS yang dikembangkan ini memiliki kriteria sangat praktis. E-LKS yang dikembangkan memiliki kualitas yang baik sehingga dapat membantu dalam proses pembelajaran.
The Use of Project Based Learning in Microteaching Courses to Instill Students' Creative Thinking Ability
Authors: Sukiman Sukiman , Priyatni Endah Try , Suwignyo Heri
Published: August 2023

The low creativity of students in the microteaching lecture process is indicated by the fact that many students still need help preparing lesson plans, teaching materials, and student worksheets. In addition, students arrange learning administration based on what is on the internet without any modifications. To overcome these problems, it is necessary to apply the right learning model to increase student creativity. This research aims to develop students' ability to create creative learning administration by utilizing project-based learning models in microteaching courses. This research is a type of qualitative research using a descriptive approach. The research subjects were 30 people, 28 women, and 2 men. Methods of data collection using observation and tests. The instruments used were observation sheets and tests. Data analysis was done with the reduction stages, data presentation, verification, and conclusion. From the results of the data analysis, it was found that the level of student creativity was already at the collaboration level. Students jointly divide tasks in preparing learning administration. It can be seen from the observations that each group makes a list of tasks that must be done. Judging from the work results, students have been able to arrange learning administration creatively. The creativity level of the project results is still at 75%. Several parts still need to be improved, such as learning objectives, materials, and forms of assessment that are outside of basic competencies. However, using project-based learning can instill creativity in students in producing products. Of course, further research is still needed to produce a good project.
Student Learning Difficulties in Terms of the STIF in Framework of Fractional Material
Authors: Kamid  , Dewi Rina Kusuma , Kurniawan Dwi Agus , Azzahra Miftahul Zannah , Nawahdani Ahmad Mansur
Published: August 2023

Learning mathematics is possible because of problems in learning facts, concepts, operations and principles. Students who need help teaching mathematics often make mistakes in counting. This research aims to analyze the difficulties experienced by students in fractional material with the types of intelligent thinking, feeling and sensing in learning mathematics. This research approach uses a qualitative approach to document study and interviews. The sample in this study was fourth-grade elementary school students. The sampling technique used is random sampling. Primary data and secondary data are the source of data in this study. The instrument used is in the form of interview sheets and questions regarding fractional material in mathematics lessons. Data analysis was carried out based on the Miles and Huberman model. Based on the results of the STIFIn test, it was found that the Feeling, Sensing and Thinking students were superior in mastering the concept of fractions to the Instinct and Intuiting students. Furthermore, students' strategies in developing fractional problem-solving strategies are comparing fractions with other simple standard fractions, comparing fractions based on the denominator and quantifier, and making fraction representations in the form of flat structures to understand and compare fractions.
Os malefícios da “Luva Chupeta” de látex na Unidade Neonatal
Authors: Nunes Janaina de Alencar , Pontes Mônica Barros , Martins Sandra Willéia , Coimbra Nállia Quirina Trindade de , Maioli Hilmara Aparecida Jesus , Sant’Ana Glaucia Cristina dos Santos França , Cavalcante Amábile de Sousa
Published: August 2023

Na Iniciativa Hospital Amigo da Criança-Neo foi proposto o uso da chupeta na Unidade Neonatal (UN) de modo terapêutico, e sempre com supervisão de um profissional de saúde. Mas observa-se que o aparato conhecido como “Luva Chupeta” fabricado com o uso de uma luva de látex está sendo utilizado como alternativa para acalentar o recém-nascido (RN). Apesar de poucos estudos, é evidente que esse dispositivo deve ser contraindicado na UN, uma vez que pode provocar alergia ao látex, transmitir infecções, provocar acidentes graves como aspiração laringotraqueal do algodão devido ao rompimento da luva de látex, e dependendo do tamanho do material, obstruir as vias aéreas, e levar a óbito. Além do mais, o dispositivo pode interferir negativamente no crescimento e no desenvolvimento craniofacial e causar prejuízos associados à amamentação e na saúde materno infantil. A substituição da “Luva Chupeta” por outras estratégias, até mesmo pela chupeta convencional ou ortodôntica, para lidar com a dor e situações de estresse do RN deve ser decisiva para evitar os riscos de acidentes graves. O Protocolo de uso de bicos, Protocolo de manejo da dor do RN, adoção do Método Canguru na UN para promoção do desenvolvimento e comportamento do RN, e a capacitação/monitoramento das práticas adotas pela Equipe Materno Infantil, quanto ao cuidado ofertado são alternativas mais complexas, mas que devem ser analisadas por aqueles que desejam oferecer confiabilidade aos seus processos institucionais.