bluuebunny/crossref_metadata_2025_split huggingface dataset:
Epidural spinal cord recordings (ESRs): sources of neural-appearing artifact in stimulation evoked compound action potentials
Authors: Deshmukh Ashlesha , Settell Megan , Cheng Kevin , Knudsen Bruce , Trevathan James , LaLuzerne Maria , Blanz Stephan , Skubal Aaron , Verma Nishant , Romanauski Ben , Brucker-Hahn Meagan , Lam Danny , Lavrov Igor , Suminski Aaron , Weber Douglas , Fisher Lee , Lempka Scott , Shoffstall Andrew , Park Hyunjoo , Ross Erika , Zhang Mingming , Ludwig Kip 
Published: September 2024

Abstract

Objective. Evoked compound action potentials (ECAPs) measured during epidural spinal cord stimulation (SCS) can help elucidate fundamental mechanisms for the treatment of pain and inform closed-loop control of SCS. Previous studies have used ECAPs to characterize neural responses to various neuromodulation therapies and have demonstrated that ECAPs are highly prone to multiple sources of artifact, including post-stimulus pulse capacitive artifact, electromyography (EMG) bleed-through, and motion artifact. However, a thorough characterization has yet to be performed for how these sources of artifact may contaminate recordings within the temporal window commonly used to determine activation of A-beta fibers in a large animal model. Approach. We characterized sources of artifacts that can contaminate the recording of ECAPs in an epidural SCS swine model using the Abbott Octrode™ lead. Main results. Spinal ECAP recordings can be contaminated by capacitive artifact, short latency EMG from nearby muscles of the back, and motion artifact. The capacitive artifact can appear nearly identical in duration and waveshape to evoked A-beta responses. EMG bleed-through can have phase shifts across the electrode array, similar to the phase shift anticipated by propagation of an evoked A-beta fiber response. The short latency EMG is often evident at currents similar to those needed to activate A-beta fibers associated with the treatment of pain. Changes in CSF between the cord and dura, and motion induced during breathing created a cyclic oscillation in all evoked components of recorded ECAPs. Significance. Controls must be implemented to separate neural signal from sources of artifact in SCS ECAPs. We suggest experimental procedures and reporting requirements necessary to disambiguate underlying neural response from these confounds. These data are important to better understand the framework for epidural spinal recordings (ESRs), with components such as ECAPs, EMG, and artifacts, and have important implications for closed-loop control algorithms to account for transient motion such as postural changes and cough.
Anti-aromaticity Increases Single-Molecule Junction Conductance
Authors: Zhang Hanjun , Zhao Shuang , Zheng Yonghao 
Published: September 2024

Abstract
Using a scanning tunneling microscope-based break-junction technique, we assessed the conductance of single-molecule junctions formed with three distinct molecular wires, each featuring a cyclic five-membered ring: furan, cyclopentanone or cyclopentadiene. We found that the conductance of these three wires correlates with their aromaticity; the non-aromatic cyclopentadienone derivative exhibits the highest conductance, while the most aromatic furan in this series displays the lowest conductance. Additionally, the lower HOMO-LUMO gap of anti-aromatic compounds may also contribute to this effect. This discovery aids in understanding the influence of molecular structure on conductive properties and provides crucial insights for the design and optimization of molecular electronic devices.
Study on the Destruction Law and Main Controlling Factors of Corrosion Product Film in H2S-CO2 Coexistence System
Authors: Zhang Guodong , Yang Na , Zhou Xiaohu , Xiao Mao , Lu Yu , Shi Xuezhi 
Published: September 2024

Abstract
The failure law and main controlling factors of corrosion product film in this corrosion environment were studied according to the characteristics of H2S-CO2 coexistence in a gas field pipeline, so as to provide guidance for corrosion prevention and control of gas field pipeline. Sediment effects of sand particles in the pipeline on corrosion, the influence of flow rate, dissolved oxygen and sediment on corrosion products were analyzed by conducting corrosion experiments at 0.5m/s, 1m/s and 2m/s, corrosion experiments without oxygen and aerobic conditions. The destruction law of corrosion product film in pipeline and the main controlling factors of corrosion product film in single well pipeline and gathering and transportation line were determined. The results show that high flow rate will cause local damage of corrosion product film and promote pitting corrosion, dissolved oxygen will destroy the integrity of corrosion product film, and sediment is one of the factors causing local corrosion and perforation of pipeline inner wall. The corrosion product film structure of the gas field pipeline will be destroyed and pitting corrosion under the condition of high flow rate, oxygen and sand deposition. Meanwhile, the main control factor affecting the corrosion product film destruction of the gas field single well pipeline is dissolved oxygen, and the main control factor affecting the corrosion product film destruction of the gas field gathering and transportation main line is sediment.
Energy calibration of LaBr3 detectors using inherent radioactivity
Authors: Dombrowski Harald , Stenger Jörn 
Published: September 2024

Abstract
In general, the energy calibration of gamma-ray detectors is carried out by using radioactive sources with well-known emission lines. The fact that the scintillator material LaBr3 includes natural radioactivity is often taken advantage of to perform an energy calibration without the need to handle an external radioactive source. For this purpose, the emission energy of photons to be detected in peaks has to be well known. Though the energies of the emission lines of the relevant isotope 138La and further information on radioactive contaminations are published with high precision, there are inconsistencies in the literature concerning the effective energies of observed photon peaks caused by inherent radioactivity. In this article, the actual peak positions are published as a result of high-precision measurements. The potential and limitations of an energy calibration of LaBr3 detectors based on the inherent radioactivity are discussed, as the emission lines of 138La are detected in clusters rather than single, clearly defined lines.
Evaluation of photoconductor and scintillator hybrid dosimeters for radiation therapy quality assurance
Authors: Han M.J. , Kang S.W. , Cho W. , Kim J.S. , Kim I.A. , Chung J.B. 
Published: September 2024

Abstract
Radiation detectors have two main detection mechanisms:
direct conversion, which utilises a photoconductor to directly
convert radiation into an electrical signal, and indirect
conversion, which utilises a scintillator to convert radiation into
visible light, which is subsequently converted into an electrical
signal. The photoconductor material, mercury (II) iodide (HgI2)
sensitive to visible light, has the property of gradually decreasing
signal for repeated irradiation beams. Therefore, this study aimed
to improve the signal magnitude and stability to repeated
measurements of polycrystalline HgI2 by mixing 0, 4, 6, 8, 10,
and 20 weight percent (wt%) of terbium-doped gadolinium oxysulfide
(GOS:Tb), a scintillator material that emits visible light. The
performance of these dosimeters was evaluated with a focus on
dosimetric parameters such as signal quantity, short-term
repeatability, dose-response linearity, and dose-rate dependence to
assess their potential application in radiotherapy quality assurance
(QA). The results from the dosimeters were compared with those from
a metal-oxide-semiconductor field-effect transistor (MOSFET)
dosimeter and an ionisation chamber. Peak was found for the
dosimeter with 8 wt% GOS:Tb but decreased for the dosimeters with
10 and 20 wt% GOS:Tb. The standard deviations of short-term
repeatability were 1.45%, 0.86%, 1.18%, 1.51%, 131%, and 4.48%
for dosimeters with 0, 4, 6, 8, 10, and 20 wt% GOS:Tb,
respectively. The dosimeters with 4 and 6 wt% GOS:Tb had better
standard deviations of repeatability than the MOSFET (1.35%), but
not better than the ionization chamber (0.5%). All dosimeters, the
MOSFET, and the ion chamber demonstrated excellent dose-response
linearity for monitor unit (MU) values ranging from 2 to 500, with
R
2 values exceeding 0.9997. The sensitivity analysed using the
linear slope was the highest for the dosimeter with 6 wt% GOS:Tb
(0.103) and the MOSFET (0.0103) among all dosimeters. The dosimeter
with 6 wt% GOS:Tb and the MOSFET exhibited deviations of 4.64%
and 3.31%, respectively, at a dose rate of 100 cGy/min, thus
failing to meet the evaluation standard of within 2%. The ion
chamber, however, achieved compliance with a deviation of 0.15%.
Therefore, it is necessary to apply correction factors to each dose
rate when using hybrid dosimeters for QA. The optimal mixing ratio
of GOS:Tb for manufacturing the hybrid dosimeter was determined to
be 6 wt%, suggesting signal amplification through visible light
and a potential improvement in operational stability through pore
filling of the material.
Quasicondensation and off-diagonal long-range order of hard-core bosons during a free expansion
Authors: Takács A , Scopa S , Calabrese P , Vidmar L , Dubail J 
Published: September 2024

Abstract
Quasicondensation in one dimension is known to occur for equilibrium systems of hard-core bosons (HCBs) at zero temperature. This phenomenon arises due to the off-diagonal long-range order in the ground state, characterized by a power-law decay of the one-particle density matrix

g
1

(
x
,
y
)
∼

|

x
−
y

|

−
1

/

2

—a well-known outcome of Luttinger liquid theory. Remarkably, HCBs, when allowed to freely expand from an initial product state (i.e. characterized by initial zero correlation), exhibit quasicondensation and demonstrate the emergence of off-diagonal long-range order during nonequilibrium dynamics. This phenomenon has been substantiated by numerical and experimental investigations in the early 2000s. In this work, we revisit the dynamical quasicondensation of HCBs, providing a fully analytical treatment of the issue. In particular, we derive an exact asymptotic formula for the equal-time one-particle density matrix by borrowing ideas from the framework of quantum Generalized Hydrodynamics. Our findings elucidate the phenomenology of quasicondensation and of dynamical fermionization occurring at different stages of the time evolution, as well as the crossover between the two.
Removal of Congo red and tartrazine binary mixture using Leucaena leucocephala seed’s extract as natural coagulant
Authors: Christian  , Putra M J B , Kristianto H , Prasetyo S , Sugih A K , Arbita A A 
Published: September 2024

Abstract
The textile industry is one of the industries that produces wastewater with complex contents and has the potential to pollute the environment. Consequently, wastewater treatment is required to prevent this problem. The utilization of natural coagulants to treat dye wastewater has been carried out by various researchers. However, most of the research only uses a single dye as the wastewater model, despite the complex nature of the real wastewater. Therefore, in this study crude extract of Leucaena leucocephala seed was used to coagulate single and binary dye mixtures with Congo red and Tartrazine as the model substance. The coagulation was carried out by varying the initial pH (3−9), dose of coagulant (50−1150 mg eq BSA/L) and the initial dye concentration (50−100 mg/L). It was found that Leucaena crude extract has successfully removed 99.54% of the Congo red (pH 3; dose 650 mg eq BSA/L) and 53.2% (pH 3; dose 1150 mg eq BSA/L) of Tartrazine at 50 mg/L single dye wastewater. The removal of 50 mg/L binary mixture was 94.4 and 54.6% for Congo red and Tartrazine, respectively, at pH 3 and coagulant dose 1050 mg eq BSA/L.
Risk assessment of arsenic exposure to occupational disease artisanal and small-scale gold mining sites, Bombana Area, Southeast Sulawesi, Indonesia
Authors: Basri  , Muthaher A A , Sakakibara M , Sera K , Komatsu S , Alkamalia W 
Published: September 2024

Abstract
Anthropogenic activities can lead to heavy metal accumulation in the body, causing heavy metal poisoning and occupational diseases. This study investigated the impact of Arsenic exposure on artisanal gold miners in Southeast Sulawesi, Indonesia. The study focused on miners at two Artisanal and Small-scale Gold Mining sites in Bombana area. The study sample comprises 63 individuals, with 54 individuals representing miners from the Rarowatu and North Rarowatu regions constituting the exposed group and 9 individuals representing non-miners from the Rumbia region forming the control group. Medical examinations and questionnaires were used to identify symptoms of occupational diseases. The As concentrations in human hair samples revealed that miners with over ten years of experience had significantly higher As concentrations (2.67 μg/g) than those exposed to less than ten years of durations (1.26 μg/g). The As concentration in the exposed group (1.61 μg/g) exceeds the World Health Organization guidelines (1 μg/g) and is higher than that of the control group (0.87 μg/g), although not statistically significant (p<0.05). Additionally, there were no significant differences in As concentrations between sick and healthy workers with various symptoms (neurological, respiratory, musculoskeletal, degenerative, and others) (p-values: 0.08, 0.32, 0.69, 0.36, and 0.67, respectively). Long-term Artisanal and Small-scale Gold Mining miners had higher As exposure, but this study found no clear association between As concentrations and specific occupational diseases.
Solvothermal synthesis of Zr-based MOFs with mixed linker as adsorbent for methyl orange in water
Authors: Jannah M , Putra Hidayat A R , Martak F , Ediati R 
Published: September 2024

Abstract
UiO-66 is one type of Zr-based MOF consisting of ZrO4(OH)4 polyhedral. Synthesis of materials UiO-66 mixed linker with additional acetic acid modulator was successfully carried out by the solvothermal method at 120°C. UiO-66 modified with mixed linker can improve stability in water that has systematically and functionally modulated pores. When the concentration of each linker increases, the linkers merge in one place and produce cluster defects. UiO-66 mixed linker was synthesized with a ratio of adding H2BDC and NH2BDC of 3:1 to moles of ligand. The X-ray diffraction (XRD) pattern and Fourier transform infrared (FTIR) spectra of the synthesized material have the same pattern with the peak characteristics of UiO-66 and UiO-66-NH2. The synthesized material has a spherical morphology with a rough surface. The performance of the materials as an adsorbent for methyl orange (MO) dyes in water reached a maximum adsorption capacity of 202.82 mg/g for materials UiO-66 mixed linker (75% H2BDC and 25% NH2BDC). The adsorption results for all the synthesized materials followed the apparent pseudo-second-order kinetics and Langmuir isotherm. The adsorption mechanism between the adsorbent and methyl orange dyes consists of π-π interactions, hydrogen bonds, and electrostatic interactions.
Facile synthesis of MIL-100(Fe)-supported zinc oxide quantum dots (ZnO/MIL-100(Fe)) for enhanced Malachite green removal
Authors: Kulsum U , Karelius K , Faaizatunnisa N , Ediati R 
Published: September 2024

Abstract
In the present study, a synthesis route for ZnO/MIL-100(Fe) composites is proposed through a one-pot synthesis at room temperature with 25% ZnO QDs, where ZnO QDs were prepared in a soft chemical route by aging process. The X-Ray diffraction (XRD) and Fourier transform infrared (FTIR) results indicated that there is a suitability between MIL-100(Fe) and ZnO/MIL-100(Fe). Scanning electron microscope (SEM) image for the composite undergoing a change due to the presence of ZnO QDs. The materials were then utilized as adsorbents and photocatalysts for the removal of Malachite Green (MG) from aqueous solutions. As a result, the adsorption and photocatalytic process of ZnO/MIL-100(Fe) and MIL-100(Fe) fitted well with the pseudo-second-order kinetic model. More specifically, ZnO/MIL-100(Fe) showed better photocatalytic activity than MIL-100(Fe) towards the degradation of these dyes under irradiation with 92% removal. This indicates that the increased photocatalytic performance of ZnO/MIL-100(Fe) is a benefit of the synergistic effect between the semiconductor ZnO QDs and MIL-100(Fe).
Thermal properties and FTIR spectroscopy: Edible film of chitosan-glycerol utilizes gamma irradiation
Authors: Syahputra A R , Yunus A L , Nilatany A , Oktaviani O , Nuryanthi N 
Published: September 2024

Abstract
As chitosan and glycerol are mixed, they form a polymer blend that can be processed into edible films, or other plastic-like materials. Chitosan-glycerol mixing generates properties of edible, which means it can break down into non-toxic components over time through natural processes, reducing its environmental impact. In this work, edible film is contained chitosan-glycerol edible films were prepared by evaporation casting from its solution. Edible films were placed on the polyethylene packages and irradiated by Co-60 gamma rays on various radiation doses. After gamma irradiation process, edible films were stored at ambient temperature. To conduct a more in-depth analysis, the edible films undergo characterization using fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). Additionally, effects of gamma irradiation are shown in shifts of C-O stretching shifted to 1045-1080 cm−1. The N-H and O-H bond became narrow after irradiation of edible films as a higher gamma irradiation dose. Gamma irradiation increased the melting point of chitosan-glycerol mixtures from 173.4 °C to 190.2 °C endothermic peak. The findings revealed that gamma radiation led to enhanced molecular interaction between chitosan and glycerol, thereby influencing the thermal properties of edible films.
Synthesis and characterization of coconut coir biochar as potential adsorbent for removal of pharmaceutical and personal care products in wastewater
Authors: Sulistia S , Arifudin  , Sofyan M I , Abidin Z , Suherman  , Setiyono  , Sidik M A , Tanoue R , Kunisue T , Sudaryanto A 
Published: September 2024

Abstract
Biochar, a solid by-product of pyrolysis has attracted the attention of researchers because of it properties which is suitable for use as an adsorbent as well as energy source. As an adsorbent, biochar has similar properties to activated carbon which has high surface area, large pore volume, environmental stability, generous functional group, and high resource recovery. On the other hand, pharmaceuticals, and personal care products (PPCPs) – a class of growing environmental contaminants, are increasing public concerns for their possible effects on the ecosystem and human health. Some PPCPs are pervasive, persistent, and bioaccumulative which thus makes them easily found and currently increase in the environment, including groundwater and surface water. The main source of surface water contamination with PPCPs is due to municipal wastewater discharge that has not been adequately treated. Furthermore, due to coconut coir having a significant amount of lignin, it may be thermochemically converted into biochar with a high yield, meeting the requirements for biochar and its use in the adsorption process. This study aims to synthesize biochar from coconut coir, characterize it and determine its potential as an adsorbent for PPCPs. The biochar used for this study were characterized based on their chemical, structural and textural characteristics. The study that demonstrated good results on the adsorption of paracetamol from the aqueous phase of biochar has the potential to eliminate this pollutant by around 92%.
Estimating CO2 emission from fly ash and bottom ash collection and transport from thermal waste processing in Jakarta
Authors: Adhi R P , Setiaji R , Sunarya A F S , Pratama R A , Dewa R P , Sabudin  
Published: September 2024

Abstract
Municipal solid waste poses a significant challenge in DKI Jakarta Province. This study assumes that DKI Jakarta has distributed waste treatment facilities (ITFs) covering western, eastern, and southern service areas, employing thermal waste systems due to their efficiency in handling large waste volumes. However, its residual waste, Fly Ash and Bottom Ash (FABA), presents its own concerns. FABA accounts for 1.5% and 18.5% of the total waste volume in all ITFs, equivalent to 88.47 tons of fly ash and 1,091.07 tons of bottom ash daily. The study analyses total distance travelled and fuel consumption for FABA transportation from each ITF to designated disposal sites. The planned fleet is 12-ton capacity truck or equivalent. Arc-GIS is employed for trip assignment and generate daily trip requirements. Three FABA disposal scenarios are considered: TPST Bantargebang, certified third-party sites in Gunung Putri, and a combination of both. The daily total distance ranges from 8,247.96 to 10,026.48 km and consume 5,071.16 to 6,164.66 Liters of biosolar. The trip assignment reveals that the distance to Gunung Putri exceeds the other alternatives, while transporting FABA to TPST Bantargebang yields the lowest total distance travelled. Estimated CO2 emissions range from 11.22 to 13.64 tons per day.
Building a resilient North Jakarta: Integrating social preferences for effective adaptation and mitigation strategy in the climate change era
Authors: Adibroto T A , Wijayanti P , Pratama R A , Adhi R P , Ihsan I M , Handika R , Musirin S D R H 
Published: September 2024

Abstract
The northern part of Jakarta, Indonesia, has been grappling with recurring floods due to climate change, affecting residents’ lives and livelihoods. Sea level rise, land subsidence, and increased precipitation increase the risk of river flooding. While the government has implemented physical flood mitigation measures, these alone are insufficient due to climate uncertainty. This 2017 study assesses socio-cultural risks in northern Jakarta and community preferences for climate change adaptation strategies. The study was conducted in 2017 and the study’s insights remain relevant to contributed as one of the scientific basis for the statutory planning of Jakarta to build the social resilience. Employing qualitative approaches, it collected data at mezzo and micro levels. Findings show that households adopt various private and public mitigation-adaptation measures. Most prefer elevating household items to higher ground (62.9%), while 44% favor maintaining the local drainage system and improving pumping facilities. However, 62% resist relocating to vertical houses, fearing job loss or increased expenses. Only 13% express willingness to relocate voluntarily for more comfortable housing. This resistance stems from the apprehension that such relocation might negatively impact their overall welfare, either by jeopardizing their employment opportunities or by increasing their monthly expenditures.
Closed-loop adaptive optics in the presence of speckle and weak scintillation
Authors: Burrell Derek J , Spencer Mark F , Driggers Ronald G 
Published: September 2024

Abstract
In this paper, we show that speckle averaging helps to improve adaptive-optics (AO) performance in closed loop as a result of reduced measurement error associated with a Shack–Hartmann wavefront sensor (SHWFS); however, this reduction is rendered ineffective with increasing beacon anisoplanatism. We do so operating in a weak-scintillation regime, where the SHWFS offers robust performance, and using in-plane translation of the illuminated rough surface to accomplish frame-to-frame speckle diversity. Understanding these trade-space limitations is critical when performing AO with non-cooperative, extended-source beacons.