bluuebunny/crossref_metadata_2025_split huggingface dataset:
Neurological Complications of Cannabinoids
Authors: Humayun Mariyam , Suarez Jose I. , Shah Vishank A. 
Published: June 2024

AbstractCannabinoid use, particularly for recreational purposes, is increasing exponentially across all age groups, especially in younger populations, due to its perceived low risk and legalization. While cannabinoids may be largely considered as safe, there is mounting evidence of increased risk of systemic and neurological complications through their interaction with the poorly understood endocannabinoid receptor network within the central nervous system and other organ systems. Acute cannabinoid exposure can cause neuropsychiatric symptoms in addition to altering cerebral blood flow, leading to cerebrovascular complications such as ischemic stroke, subarachnoid hemorrhage, and reversible cerebral vasoconstriction syndrome (RCVS). Chronic use, particularly among adolescents, may be associated with increased risk of long-term cognitive deficits, schizophrenia, and other neuropsychiatric effects. Synthetic cannabinoids have increased potency, with reports of causing profound neurological complications including coma, seizures, posterior reversible encephalopathy syndrome, and RCVS. Despite increasing evidence, the quality of literature describing neurologic complications with cannabinoids remains limited to case series and retrospective cohort studies, with significant confounding factors such as concomitant use of other illicit drugs, limiting interpretation. In this review, we summarize the effect of cannabinoids on the neurologic system and associated neurological complications.
The Arterial System of the Fasciocutaneous Deltoid Flap Pedicle on 320-Detector Row Computed Tomography and Clinical Application in the Foot and Hand
Authors: Ngoc-Huyen Nguyen , The-Hoang Nguyen , Lam Khanh , Quang-Vinh Nguyen , Staudenmaier Rainer 
Published: June 2024

Abstract
Background Fasciocutaneous free deltoid flaps are used to reconstruct hand, foot, and maxillofacial defects. Although anatomical studies of this flap pedicle have been performed on cadavers, there are no reports on the use of 320-detector row computed tomography angiography (CTA-320) to investigate the deltoid flap pedicle in living humans. This study aimed to investigate the arterial characteristics of the deltoid flap pedicle using the CTA-320 system in living humans.
Methods Twenty-seven adult Vietnamese patients with 54 healthy deltoid regions underwent CTA-320 to investigate arterial blood supply before clinical free-flap transfer. Two- and three-dimensional reconstruction images of the arterial pedicle were visualized, and clinical reconstruction results were evaluated.
Results The cutaneous vessel branches of the deltoid flap were separated from the posterior circumflex humeral artery (PCHA) and originated from the axillary (77.78%), subscapular (12.96%), and brachial (9.26%) arteries. The PCHA penetrated the quadrangular space in 90.74% of patients. The cutaneous arterial branch was present in the deltoid-triceps groove in 100% of patients. The average diameter and length of the PCHA were 3.38 ± 0.58 and 43.08 ± 6.60 mm, respectively. The average diameter and length of the flap cutaneous branch were 1.49 ± 0.28 and 44.57 ± 4.83 mm, respectively. The findings of CTA-320 were aligned with the intraoperative clinical findings well. All deltoid flaps were successfully free-transferred with good outcomes.
Conclusion The CTA-320 is a practical and effective method for investigating deltoid flap pedicles. It enables accurate flap design and harvesting of flaps, thereby enhancing the clinical success of free-flap transfer.
Effect of Beta-Blocker Consumption on the Severity and Extension of Perfusion Defects in Dipyridamole Myocardial Perfusion Single-Photon Emission Computed Tomography
Authors: Shahlaee Shirin , Falsoleiman Homa , Daloee Mahdi Hasanzade , Gholoobi Arash , Divband Ghasem Ali , Raeisi Nasrin , Dabbagh Kakhki Vahid Reza 
Published: June 2024

Abstract
Background Regarding the less-known effects of beta-blocker consumption on the diagnostic value of the myocardial perfusion scan with dipyridamole stress in coronary artery disease (CAD), we aimed to compare the findings of the scans done on the beta-blocker consumption course and after discontinuation of this medications.
Materials and Methods Thirty patients with probably CAD and abnormal myocardial perfusion scans (presence of reversible defect), who had been treated with beta-blockers for at least 3 months, were studied. Dipyridamole stress phase of myocardial perfusion single-photon emission computed tomography (SPECT) was performed two times with an interval of about 1 week, once after discontinuation of all antianginal and anti-ischemic medications, statins, and beta-blockers for 72 hours prior to the study, and again after discontinuation of all these medications except for beta-blockers. Imaging was done with the same protocol, radiopharmaceutical dose, and imaging parameters. Summed stress score (SSS), summed stress rest, and summed difference scores (SDS), total perfusion deficit (TPD), severity, and extension of myocardial perfusion defects in three coronary artery territories were analyzed, using quantitative perfusion SPECT software.
Results Most variables such as SSS, SDS, TPD, severity, and extension of defects showed a significant difference between the two conditions including beta-blocker consumption and after discontinuing beta-blocker consumption before stress imaging (p < 0.05). Moreover, in patients on treatment with metoprolol, all studied factors including SSS, SDS, TPD, severity, and extension of perfusion defects were significantly reduced when patients consumed beta-blockers before SPECT evaluation (p < 0.05).
Conclusion Beta-blocker consumption can lead to a decrease in the severity and extent of myocardial perfusion defects and therefore probably a decrease in the sensitivity of myocardial scans. Discontinuation of beta-blocker prior to the dipyridamole myocardial perfusion scan can improve diagnostic accuracy.
British politics symposium on Ben Clift (2022) the OBR and the politics of technocratic economic governance (Oxford University Press)
Authors: James Scott 
Published: June 2024

AbstractThis contribution to the symposium situates Clift’s (The office of budget responsibility and the politics of technocratic economic governance, Oxford University Press, Oxford, 2023a) book in wider scholarship on ‘epistemic politics’ in comparative and international political economy. I argue that the book serves to foreground the power and politics of economic knowledge and technocratic expertise in three ways: (1) by unpacking the ‘everyday’ life of ideas as grounded in material processes of knowledge production; (2) lifting the veil on the ‘model world’ of economic policy by analysing the epistemological foundations of technocracy; and (3) deconstructing the politics of crisis by revealing the OBR’s critical role in interpreting and narrating developments like Brexit and Covid. The rest of the paper is devoted to reflecting on the core theme of the book—technocratic economic governance—focussed on three related issues: problematising technocracy and technocratic expertise; the dynamics of learning and accountability; and the importance of historicising economic governance since 2010.
A compact smiley shaped flexible patch antenna for ISM band applications
Authors: Julius Fusic S. , Sugumari T. , Giri Jayant , Sitharthan R. , Badawy Ahmed Said , Ahmad Naim , Sathish T. 
Published: June 2024

Breast cancer is a medical condition characterized by the uncontrolled proliferation of cells in the breast tissue. Breast cancer can originate from various parts of the breast, and methods such as Breast ultrasound, Diagnostic mammogram, Breast magnetic resonance imaging, and Biopsy are currently used for its diagnosis. However, these methods have certain limitations, and their size can be a hindrance. To overcome this, low-power, flexible antennas can be designed for bio-communication between medical equipment and external instrumentation. Flexible and wearable antennas have advantages such as affordability, ease of fabrication, and high gain. In this article, a microstrip patch antenna operating at 2.45 GHz and made of polyamide material is designed using High Frequency Structure Simulator software. The simulation results show the patch antenna has a gain of 1, −14.81 dB return loss at 2.45 GHz based on |S11| ≤ −10 dB. The directive radiation pattern with axial ratio of 63.39 dB and voltage standing wave ratio ≤3. Furthermore, the hardware development of proposed antenna with polyamide substrate provides the resonance frequency nearing to simulation results as 2.318 GHz with return loss of −28.19 dB. Based on mathematical analysis, simulation and hardware results, the proposed antenna is a superior option for breast cancer detection.
Two-photon laser-induced fluorescence study of the CO B 1Σ+ (v′ = 0) state in a 4850 K plasma plume: Modified molecular constants, evidence of predissociation, and J′-dependent photoionization
Authors: Murray John S. , Clemens Noel T. 
Published: June 2024

We report the two-photon absorption laser-induced fluorescence rotational spectrum of the CO B 1Σ+ ← X 1Σ+ Hopfield–Birge system (v′ = 0, v″ = 0) Q-branch in an ∼4850 K, atmospheric pressure plasma torch plume at thermal equilibrium in both the quenching-dominated (low laser intensity) and photoionization-dominated (high laser intensity) regimes. We provide a detailed analysis of the photophysics in these two regimes using a rate equation approach and propose modeling considerations for them as well. In the experimental spectra, distinct rotational transitions up to J″ = 83 are observed, allowing analysis over a very large range of rotational states. Evidence of predissociation is observed for J′ ≥ 64 and is likely due to the interaction with the D′1Σ+ electronic state, which has been proposed in the literature but never observed in the v′ = 0 state. The line positions of higher rotational states show disagreement with line positions calculated from molecular constants in the available literature, suggesting the need for modifications to the constants, which are reported here. A shift in the B 1Σ+ ← X 1Σ+ absorption spectrum toward higher two-photon energy as a result of the second-order Stark shift was observed in the photoionization-dominated spectrum, and the second-order Stark shift cross section was estimated to be 7 ± 3 × 10−18 cm2. The mean photoionization cross section of the excited upper state was inferred by comparing the line broadening of the two spectra and was estimated to be 11 ± 7 × 10−18 cm2. In addition, weak J′-dependent variations of the photoionization cross section were observed and are reported here.
Managing temperature in open quantum systems strongly coupled with structured environments
Authors: Le Dé Brieuc , Jaouadi Amine , Mangaud Etienne , Chin Alex W. , Desouter-Lecomte Michèle 
Published: June 2024

In non-perturbative non-Markovian open quantum systems, reaching either low temperatures with the hierarchical equations of motion (HEOM) or high temperatures with the Thermalized Time Evolving Density Operator with Orthogonal Polynomials Algorithm (T-TEDOPA) formalism in Hilbert space remains challenging. We compare different ways of modeling the environment. Sampling the Fourier transform of the bath correlation function, also called temperature dependent spectral density, proves to be very effective. T-TEDOPA [Tamascelli et al., Phys. Rev. Lett. 123, 090402 (2019)] uses a linear chain of oscillators with positive and negative frequencies, while HEOM is based on the complex poles of an optimized rational decomposition of the temperature dependent spectral density [Xu et al., Phys. Rev. Lett. 129, 230601 (2022)]. Resorting to the poles of the temperature independent spectral density and of the Bose function separately is an alternative when the problem due to the huge number of Bose poles at low temperatures is circumvented. Two examples illustrate the effectiveness of the HEOM and T-TEDOPA approaches: a benchmark pure dephasing case and a two-bath model simulating the dynamics of excited electronic states coupled through a conical intersection. We show the efficiency of T-TEDOPA to simulate dynamics at a finite temperature by using either continuous spectral densities or only all the intramolecular oscillators of a linear vibronic model calibrated from ab initio data of a phenylene ethynylene dimer.
How to levitate a lightbulb
Authors: Williams Hollis 
Published: June 2024

Abstract
There exist many magnetic levitation toys, most of which use spin-stabilised levitation. A more recent demonstration features a levitating lightbulb which is made to float in the air and light up by magnetic forces. We study the workings of the lightbulb and explain how it operates via a different type of levitation known as electrodynamic suspension. We also examine the stability of the device, showing that levitation can be maintained even if the bulb is prevented from rotating.
Quantum multicast based on joint remote state preparation
Authors: Zhang Zhihua , Shen Beining , Zhang Hanchen , Qiu Zhipeng 
Published: June 2024

Abstract
Effective propagation of information among multiple users is the purpose of realizing large-scale quantum communication networks. In this paper, multicast protocols for any single, two and three qubits with real amplitude and complex phase information are presented. They were realized using a composite of Greenberger–Horne–Zeilinger states as shared channels. Joint remote state preparation was the main method for completing quantum multicast. At the same time, quantum state tomography of the schemes was carried out on the IBM Quantum platform. The obtained states were compared with the target states by fidelity. The analysis of communication efficiency and noise effects shows that our protocol has advantages in the case of complex coefficients.
Ground states and first radial excitations of vector tetraquark states with explicit P-waves via QCD sum rules*
Authors: Wang 王 Zhi-Gang 志刚 
Published: June 2024

Abstract
In this study, we chose the diquark-antidiquark type four-quark currents with an explicit P-wave between the diquark and antidiquark pairs to study the ground states and first radial excitations of the hidden-charm tetraquark states with quantum numbers

. We also obtained the lowest vector tetraquark masses and made possible assignments of the existing

states. There indeed exists a hidden-charm tetraquark state with

at an energy of approximately 4.75 GeV as the first radial excitation that accounts for the BESIII data.
Unpacking satellite pixels: UAVs reveal fine-scale drivers of land surface phenology in a winter rainfall shrubland
Authors: van Blerk J J , Slingsby J A , West A G 
Published: June 2024

Abstract
Land surface phenology (LSP) can reveal important connections between vegetation dynamics and climate but remains poorly understood in evergreen winter-rainfall shrublands globally. Field-based studies have indicated diverse plant functional strategies in shrublands, but further work is required to link LSP to vegetation functional composition in these regions. We analysed time-series of the normalised difference vegetation index (NDVI) in fynbos shrublands of South Africa using multi-spectral imagery from satellites and unmanned aerial vehicles (UAVs). We investigated the climate drivers of seasonal vegetative phenology and long-term NDVI trends at multiple spatial scales ranging from the landscape to individual species. At coarse spatial resolutions, NDVI time-series indicated rainfall-driven vegetation dynamics in fynbos, both at inter and intra-annual time scales. However, high-resolution time-series from UAVs exposed an underlying divergence in vegetative phenology and long-term NDVI trends between shallow and deep-rooted growth forms. Phenophases and NDVI trends of isolated, deep-rooted, overstory shrubs were decoupled from rainfall relative to dense overstory patches and shallow-rooted understory growth forms. Variations in growth form phenology were not detected at coarse spatial scales due to scaling and competitive effects based on the functional composition of the vegetation.
Phase Change Materials (PCM) for a Zero-carbon Food Preservation Technology in Remote Areas
Authors: Joseph Sekhar S , Saif Al Maqbali Fahad , Aslam Jamal 
Published: June 2024

Abstract
Phase Change Materials (PCM) are thermal storage materials that are capable of storing renewable energy and improve the performance of a solar cooling system. Since solar power is not consistent everywhere and the operating conditions of cooling systems are varying, a specific study is needed to implement this principle for a particular location. This research work aims at developing small-scale solar domestic refrigerator and freezer systems to work with PCMs and solar energy. The software, System Advisor Model is used to select the PV system for the location. An experimental setup of a 210-litre refrigerator and a 250-litre chest freezer with PCM cladding is used. The quantity of low-temperature PCM was varied, and the energy efficiency of the system, temperature distribution inside the refrigerated space, and on-off cycles of the compressor were studied to ensure its technical feasibility. The results from the study showed that the use of PCM could run the system during non-sunshine hours with an 8-15% reduction in energy consumption. The pulldown time was promising, and the off-cycle time of the compressor was long, which ensures that the system can work at the desired temperature during the off-sunshine hours. The temperature distribution inside the freezer and food compartments of the refrigerator for various quantities of PCM was found to be from -14 to -16°C and from 1 to 8°C, respectively. Moreover, the calculated total equivalent warming impact was 15-60% lower than the conventional system. A detailed study on the economic benefits and risk analysis can be conducted to mature the technology
Information system for production process of a ferry ro-ro ship hull block
Authors: Firmansyah M R , Asri S , Fachruddin F , Mustafa W , Clausthaldi F R , Putra M R A , Azzahra A N 
Published: June 2024

Abstract
Ship production process involves a complex flow of information between divisions in the shipyard. The flow of information is vital because it determines whether the ship production process is carried out according to the ship-building master schedule. In the era of industrial technology 4.0, the flow of information must be supported by a digital information system. Unfortunately, information handling is still manually conducted, especially in small domestic shipyards. Hence, it takes time to transfer and notify any information changes from one division to another. As a consequence, it potentially delays the completion of the ship construction. A digital information system for the ship production process will be beneficial, especially for small domestic shipyards, to stream information on the ship production processes. Preliminary research has been carried out to support the realization of a digital information system for ship production. This research was conducted to develop the system by identifying and formulating any information in the ship production process in a shipyard. Based on the finding, an information system for the ship production process was designed. The result of this research is the design of an information system for the production process of a ship hull block in a small domestic shipyard.
Optimization And Implementation of Waste Management Planning on Indonesian Flag Non-Convention Ships Sailing in Indonesian Waters
Authors: Sukirno  , Purnomo J 
Published: June 2024

Abstract
Waste is one of the objects of concern on ships, especially in terms of its storage and disposal, where more attention must be given to all ships with a gross tonnage of one hundred or more. Every ship certified to carry fifteen people or more, and every fixed or floating platform must have a waste management planning on ship, which includes written procedures for minimizing, collecting, storing, processing and disposing of waste including the use of equipment on the ship. In discussing this material, the researchers analyze the procedures and handling of waste disposal on Indonesian-flagged non-conventional ships. The method used in this research was the case research method. Data collection techniques included observation, interviews and library research methods. The research results show that on Indonesian-flagged non-conventional ships entering the Port of Makassar, there was still waste thrown into the sea, especially by crew members who did not comply with the waste management procedures regulated in The International Convention for the Prevention of Pollution from Ships Annex V. Ships - Non-conventional ships had not handled waste in accordance with The International Convention for the Prevention of Pollution from Ships 73/78 regulations due to various factors, one of which is that there is no equipment for handling waste in the ship and the lack of understanding of ship crew members in protecting the maritime environment. It is recommended that the company supervise the handling of waste in the ship and on the other hand, the port management must prepare waste storage facilities.
Nutrient Removal Efficiencies in a Bioretention Cell Using Pre-Treated Coconut By-Product as Carbon Source
Authors: Dinno Nur Dianna , Goh Hui Weng , Akil Hazizan Md. , Azizan Nor Ariza , Woon Khee Ling , Chang Chun Kiat 
Published: June 2024

Abstract
In this research, the appropriateness of alkali pre-treatment on coconut by-products was managed by exposing coconut husk and shell to 2M NaOH. The powdered samples were analysed for morphology observation, Fourier Transform Infrared (FTIR), Particle Size Analyzer (PSA), and water quality tests. Weakening the hemicellulose structure resulted from subjecting the coconut shell to alkali pre-treatment shown in the morphology observation. Furthermore, the FTIR analysis exhibited the presence of O-H stretch in all pre-treated samples representing an indication for occurring the lignin breakdown, while an absence of the C=O functional group was shown in both additive samples after their subjection to alkali pre-treatment. In PSA analysis, the particles of all samples were found finer than the particle size distribution standards, in which the smallest D50 was obtained for the treated coconut shell (TCS), followed by untreated coconut shell (UCS), untreated coconut husk (UCH), and treated coconut husk (TCH). Among all the powdered samples (TCS, UCS, UCH, and TCH) analysed in this study, only TCH values met the ranges provided and recommended by the Urban Stormwater Management Manual for Malaysia (MSMA) and the Australian Department of Sustainability, Environment, Water, Population, and Communities (DSEWPC). Meanwhile, a poor removal rate for total suspended solids (TSS) was attained due to the contribution of TSS by the filter media which caused the TSS rates to surpass the inlet values. Additionally, the presence of a high concentration of total phosphorous (TP) in all the tested samples indicated their capabilities to provide PO43 in the bioretention cell, which is a vital nutrient for the plant’s growth. In contrast, Ammoniacal Nitrogen (AN) with a concentration rate as low as 4 mg/L was observed throughout the test periods which showed a significant reduction compared to the rate of AN at the inlet samples ranged between 5.2 and 11.4 mg/L. The findings indicated that coconut by-products, when subjected to an alkali pre-treatment process, are appropriate for incorporation as additives in bioretention filter media.