bluuebunny/crossref_metadata_2025_split huggingface dataset:
A dual functional fluorescent probe based on phenothiazine for detecting Hg2+ and ClO− and its applications
Authors: Zhang Cheng-lu , Liu Chang , Nie Shi-ru , Zhang Yang , Guo Jing-hao , Li Xiang-ling , Liu Cui 
Published: October 2023

Abstract
For the efficient detection of Hg2+ and ClO−, a double-analyte-responsive fluorescent probe PTB was successfully synthesized by combining N-butyl-3-formyl phenothiazine with hydrazine benzothiazole, and designing a specific reaction site for recognizing two analytes (Hg2+ and ClO−) in a compound. It was shown that probe PTB successfully formed a stable complex with Hg2+ in the coordination ratio of 2 : 1 by using the strong sulfur affinity of Hg2+, which resulted in a remarkable "turn-off" effect, with a quenching efficiency of 92.5% and four reversible cycles of Hg2+ fluorescence detection. For the fluorescence detection of Hg2+, the response time is fast (≤ 2 min) and the detection limit is low (7.8 nM), showing extremely high sensitivity, and the performance is obviously better than that of the reported fluorescent probes for detecting Hg2+. In particular, probe PTB has low toxicity and good biocompatibility, and has been successfully used for imaging of Hg2+ in living cells. Moreover, probe PTB uses thioether bond and carbon-nitrogen double bond as reaction sites to detect ClO−, which has large Stokes Shift (149 nm), good selectivity, high quenching efficiency (96.5%) and fast time response (about 10 s), and successfully detects ClO− in actual water samples.
Co-reduction of nitrogen and greenhouse gas emissions in global livestock production
Authors: Gu Baojing , Cheng Luxi , Zhang Xiuming , Cui Jinglan , Wang Chen 
Published: October 2023

Abstract

Livestock production represents a primary contributor to global nitrogen pollution and greenhouse gas (GHG) emissions 1, 2. Current efforts to reduce emissions often target specific livestock species, single emission indicators, or isolated production stages, lacking a comprehensive approach to simultaneously address nitrogen and GHG emissions. We conducted a global assessment of 15 major mitigation measures, analyzing their impacts on nitrogen utilization, loss, and GHG emissions across the entire production chain for pigs, chickens, dairy cattle, and beef cattle, using data from 1,291 observations. Our findings reveal that the adoption of optimal measures could lead to a global reduction of 17 million tonnes of nitrogen (46%) and 418 million tonnes of CO2-equivalent (15%), while simultaneously increasing livestock and crop production by 25,000 and 194,000 tonnes, respectively. Achieving this optimized scenario requires an investment of just 25 billion US dollars, yielding substantial benefits totaling 354 billion US dollars. However, the feasibility and outcomes of these measures vary significantly depending on different livestock species and production stages. Tailored mitigation strategies are imperative to ensure the sustainable future of global and regional livestock production.
Highly efficient electrocatalyst of single metal atom doped 2D WS2 for ORR and OER
Authors: Ma Linhao , Zhang Ming , Peng Kai , Liu YuQing , Zhao Junjie , Wang Ruzhi 
Published: October 2023

Abstract
To search for efficient electrocatalyst towards ORR and OER for sustainable energy conversion, storage, and utilization, a family of single transition-metal atom (Mn, Fe, Co, Ni, Cu and Zn) doped two-dimensional tungsten disulfide monolayers have been systematically investigated by using first-principle computations to uncover the impact of transition-metal dopants on ORR and OER electrocatalytic activities. It is demonstrated that single-metal-atom sites can bind to the surface of 2D WS2, enhancing the adsorption of intermediates involved in the OER/ORR and decreasing overpotentials effectively. Compared to the pristine 2D WS2, most of transition-metal doped catalysts can decrease overpotentials and promote OER and ORR activities effectively. Particularly, Ni@WS2 and Zn@WS2 are screened out to exhibit the best electrocatalytic activity among all systems with an overpotential of 0.33 and 0.47 V for OER process, respectively, showing that Ni@WS2 and Zn@WS2 are potential candidates for OER electrocatalysts. Furthermore, their electrocatalytic performance are explained in terms of volcano plot, scaling diagram, d-band center model, and charge analysis.
Students’ Tool-Shaped Conceptualisation of the Idea of Statistical Distributions: The Case of Frida
Authors: Johansen Stine Gerster 
Published: October 2023

Abstract
This paper presents a case study that explores digital experiences in statistics teaching within Danish lower secondary school, focusing on the development of students' statistical concepts. The study tracks the progress of a student named Frida, who engages with the digital tool Tinkerplots over the span of a year. During this period, Frida develops a unique 'plot-stack-drag' technique that significantly influences her conceptual development. Her routines with the tool not only support her in some instances but also create conflicts due to their impact on her personal goals and anticipations. This paper delves into the educational implications of the dialectical relationship between students' development of tool-based routines and their personal goals established during the process. The research findings highlight the profound impact of interactions between students and digital tools, such as Tinkerplots, on shaping students' understanding of statistical concepts. This underscores the importance of educators' heightened awareness of students' personal goals and expectations influenced by digital tools, which, in turn, opens the door to innovative learning opportunities.
A Comparative Assessment of Policy Induced Diffusion Pathways for Utility Scale Solar PV: Case Study of Indonesia
Authors: Syafina Paramastri , Oluleye Gbemi 
Published: October 2023

Abstract

Utility-scale solar PV is projected to play a pivotal role in achieving Indonesia’s 2050 net-zero energy target. However, current uptake is limited. This study seeks to identify a cost-effective pathway to increase the capacity of utility-scale solar PV in Indonesia through supportive policies that ensure equitable cost distribution between the government and the industry. A novel Market Penetration Optimization Model (MPOM) is developed and applied in simulation mode to assess existing policies and optimization mode to determine new policy recommendations and compare three diffusion pathways. Results show that current price-based policies are deemed insufficient to stimulate growth in the solar PV market, only covering approximately 13% of the investment cost required by the industry. Thus, necessitating a reactivation of Feed-in-Tariffs (FiT). The optimal FiT rates required to balance the cost to the government and the industry range from 0.39 to 1.47 cents $/kWh for the most economic pathway during the initial ten-year post-construction period. The IDT-based pathway necessitates the lowest initial investment cost while yielding the highest revenue from electricity sales, demonstrating its superior cost-effectiveness compared to both the supply-based and linear pathways. This study enriches the literature by exploring the financial implications of policy and diffusion pathway selections. The model's adaptability to various technologies, different countries, timelines, and capacity targets enhances its applicability for future endeavors.
Fixed-Time Synchronization of Markovian Switching Stochastic Complex Networks via Quantized Aperiodically Intermittent Control
Authors: Wu Jiawei , Yu Yongguang , Su Wei , Ren Guojian 
Published: October 2023

Abstract
Fixed-time synchronization of Markovian switching stochastic complex networks via quantized aperiodically intermittent control is studied by this article. To achieve synchronization, a new control law is proposed. This control law greatly decreases the control expenses by saving communicating access and communicating bandwidth. By structuring Lyapunov functionals, and applying a designed comparison system, some simultaneity results are presented in terms of using the characteristics of Wiener processes. Comparatively speaking, there are two main features of this article. 1) Markov processes are applied to switching stochastic topological systems. 2) Fixed-time synchronization is achieved by a quantized intermittent controller to save resources. Finally, the result of the numerical simulation verifies the validity of the theoretical analysis.
Quantification of Surgical Workflow during Robotic Proctectomy
Authors: Gillani Mishal , Rupji Manali , Devin Courtney , Purvis Lilia , Olson Terrah Paul , Jarc Anthony , Shields Mallory , Liu Yuan , Rosen Seth 
Published: October 2023

Abstract

Aim:
Assessments of surgical workflow offer insight regarding procedure variability, case complexity and surgeon proficiency. We utilize an objective method to evaluate step-by-step workflow and step transitions during robotic proctectomy (RP).
Methods:
We annotated 31 RPs using a procedure-specific annotation card. Using Spearman’s correlation, we measured strength of association of step time and step visit frequency with console time (CT) and total operative time (TOT).
Results:
Across 31 RPs, a mean (± standard deviation) of 49.0 (± 20.3) steps occurred per procedure. Mean CT and TOT were 213 (± 90) and 283 (± 108) minutes. Posterior mesorectal dissection required most visits (8.7 ± 5.0), while anastomosis required most time (18.0 [± 8.5] minutes). Inferior mesenteric vein (IMV) ligation required least visits (1.0 ± 0.0) and lowest duration (0.9 [± 0.5] minutes). Strong correlations were seen with CT and step times for IMV dissection and ligation (ρ = 0.60 for both), lateral-to-medial splenic flexure mobilization (SFM) (ρ = 0.63), left rectal dissection (ρ = 0.64) and mesorectal division (ρ = 0.71). CT correlated strongly with medial-to-lateral and supracolic SFM visit frequency (ρ = 0.75 and ρ = 0.65). There were strong correlations with TOT and initial exposure time (ρ = 0.60), as well as visit frequency for medial-to-lateral (ρ = 0.67) and supracolic SFM (ρ = 0.65). Descending colon mobilization was nodal, rectal mobilization convergent and rectal transection divergent.
Conclusion:
This study correlates individual surgical steps with CT and TOT through standardized annotation. It provides an objective approach to quantify workflow.
Most physical interventions for musculoskeletal pain in children and adolescents cannot be reproduced in clinical practice: a systematic review of randomized clinical trials
Authors: Figueiredo Carolina Gonçalves , Santos Verônica Souza , Madureira Eduarda Vianna , Antunes Jéssica Silva , Santo Caique de Melo do Espirito , Leite Mariana Nascimento , Yamato Tiê Parma 
Published: October 2023

Abstract

Methods
We considered randomized controlled trials that included children and adolescents between 4 and 19 years old with acute or chronic/persistent musculoskeletal pain. We considered interventions including active and passive physical therapies related to all types of physical modalities aimed at reducing the intensity of pain or disability in children and adolescents with musculoskeletal pain. The description of interventions was assessed using the Template for Intervention Description and Replication (TIDieR) checklist. We performed electronic searches in the following databases: CENTRAL, MEDLINE, EMBASE, CINAHL, PsyINFO and PEDro up to October 2021. The study selection, data extraction and analysis procedures were carried out by two independent reviewers. The description of physical interventions was presented using frequencies, percentages and 95% confidence intervals (CIs) of the TIDieR checklist items described in each study. We also calculated the total TIDieR score for each study and presented these data as mean and standard deviation.
Results
We included 14 randomized controlled trials. The overall quality of description measured through the TIDieR checklist was poor, with an average of 12 (4.3) points out of 24. The item of the TIDieR that was mostly described was item 1 (brief name). The item for which the description was mostly absent was item 10 (modifications).
Conclusion
The descriptions of physical interventions for the treatment of musculoskeletal pain in children and adolescents are usually poorly described, indicating the need for strategies to improve the quality of description to enable true clinical reproducibility.
Performance Analysis of Pilot-Based Channel
Estimation Techniques for Massive MIMO Uplink
Communication System
Authors: Adane Mulusew 
Published: October 2023

Abstract
Massive multiple input multiple output(MIMO) technology can support every
cell which has a base station (BS) with a large number of antennas and simultaneous use of the same resource. Therefore, Massive MIMO systems can give high
spectral (SE) and energy efciency (EE). However, in this technology, channel
estimation is one of the challenges that degrade the performance that need to
be addressed. In this work, we focus on the frst performance analysis of channel
estimation techniques for Massive MIMO in terms of computational complexity
and reliability. A practicable solution to solve the computational complexity and
reliability is to study the pilot-based channel estimators such as minimum mean
square error (MMSE), element-wise minimum mean square error (EW-MMSE),
and least square (LS) with their SE and EE. Time division duplex (TDD) protocol, spatial channel correlation, and multicell minimum mean square error
(M-MMSE) processing are also considered for reciprocity and pilot contamination
problems. We evaluate the performance of channel estimation techniques for the
Massive MIMO uplink system by using computational complexity, mean square
error (MSE), SE, and EE as performance metrics. The simulation results show
that pilot-based channel estimation has the lowest computational complexity and
the best reliability when compared to blind and semi-blind channel estimation
techniques. Moreover, MMSE estimators provided the lowest normalized MSE
and the highest achievable SE with the M-MMSE combining scheme
Effects of the nutrient inhibition on the yield of DBPFPs by Microcystis aeruginosa
Authors: Zhiquan Liu , Rui Huang , Zhu Wang , Fuyi Cui , Chun Hu 
Published: October 2023

Abstract

The yield of three disinfection byproduct formation potentials (DBPFPs), including trichloromethane, dichloroacetic acid and trichloroacetic acid formation potential (TCMFP, DCAAFP and TCAAFP), by Microcystis aeruginosa under the nitrate and phosphate inhibition conditions was investigated. The results showed that excessive nitrate could inhibit the growth of M. aeruginosa, but the concentration of DBPFPs in the five fractions of algal metabolites, including hydrophilic extracellular organic matter (EOM), hydrophobic EOM, hydrophilic intracellular organic matter, hydrophobic intracellular organic matter and cell debris, only decreased slightly. Accordingly, the productivity of DBPFPs by M. aeruginosa increased by approximately 40% under the nitrate inhibition condition and the increased productivity of DBPFPs mainly came from EOM. The phosphate inhibition also performed a similar pattern with a lesser extent. The nutrient inhibition did not change the proportion of these three DPBFPs, and TCMFP accounted for approximately 87% of the total DBPFPs. The inhibition could promote M. aeruginosa to secrete more metabolites. However, the cyanobacteria tended to secrete more DBPFPs under the nitrate inhibition condition, which resulted in an increased specific DBPFP, while they tended to secrete more non-DBPFPs under the phosphate inhibition condition, which resulted in a decreased specific DBPFP.
In vitro Antioxidant and Antimicrobial Effects of Mimusops elengi (Linn.) Stem Bark Extract
Authors: Mohan Maneesh , Mir Anayat Ullah , Khan Nadeem , Singh Thakur Gurjeet , Kumar Manish 
Published: October 2023

Background:
Mimusops elengi (Linn.) has high medicinal value and is a native plant of
India. In the traditional system of medicine, the bark of M. elengi was used as cardiotonic, alexipharmic, stomachic, anthelmintic, tonic, and tooth-protectant that might be associated with antioxidant and antimicrobial effects. Microorganisms are an integral part of our buccal cavity and intestines, however, a change in normal microflora can result in pathological manifestations.

Objective:
The current study attempts to evaluate the antioxidant activity of M. elengi (Linn.) stem
bark extracts using in-vitro methods and the efficacy of M. elengi (Linn.) stem bark extracts against
Gram-negative bacteria and fungal strains.

Methods:
Extracts (aqueous and ethanolic) were prepared using a Soxhlet assembly and rotavapor.
The extracts were subjected to phytochemical screening and in-vitro antioxidant and antimicrobial
tests.

Results:
The ethanolic and aqueous extracts of M. elengi stem bark showed appreciable DPPH free
radical scavenging, reducing power, and nitric oxide inhibitory activities with a concentration-dependent increase in their effects. The ethanolic extract showed better antioxidant activity relative
to the aqueous extract. Escherichia coli, Pseudomonas aeruginosa, Proteus vulgaris, and Salmonella
typhi growth were suppressed by the M. elengi extracts. Both extracts showed maximum activity
against S. typhi, while the ethanolic extract had better antibacterial and antifungal (S. cerevisiae, P.
chrysogenum, and A. fumigatus) activity relative to the aqueous extract.

Conclusions:
The findings of the present study conclude that aqueous and ethanolic extracts of M.
elengi (L.) stem bark showed potent antioxidant and antimicrobial activity.
Electromagnetically Navigated Tube Placement Device for Bedside Placement of Small Bowel Feeding Tube on Patients with Acute Severe Pancreatitis: Comparative Study
Authors: Tan Guoliang , Chen Yongming , Lin Yanping 
Published: October 2023

Background:
A developing approach for the bedside installation of feeding tubes is the Electromagnetic Navigation-assisted Tube Placement Device (ENTPD).
The ENTPD monitors the tip position of feeding tubes when they are inserted into the digestive tract. It aids in the avoidance of airway
misalignment and allows placing into the small bowel. Several recent exploratory studies have shown that ENTPD for nasojejunal feeding tube
installation can improve success rates, lower costs, and allow for a more rapid beginning of enteral nutrition.

Objectives:
The aim of this study was to compare the effect of using an ENTPD for bedside placement of small bowel feeding tubes with blind placement on
patients with acute severe pancreatitis and to see how well the electromagnetic navigation trajectory image (ENTI) and X-ray agreed on the
location of the tube tip after placement.

Methods:
The study was done prospectively using randomized and single-blind methods. The 65 cases used electromagnetic navigation-assisted placement,
and 58 cases were blind placement. For judging the tube tip location, we compared the success rate, median time, number of repeat placements,
complications, and agreement of ENTI vs. X-ray.

Results:
The blind placement group's success rate was 86.21% compared to the ENTPD's 95.38%, P = 0.075. The median time was significantly longer in
the blind placement group (116.55 ± 68.62 min vs. 25.37 ±12.63 min, P=0.000); the average number of repeating placements was 3.02 ± 1.21 vs.
1.16 ± 0.31 (Blind placement vs. ENTPD, P = 0.002). It provided a high degree of agreement between ENTI and X-ray after contrast, κ=0.752
[95% confidence interval, 0.67-0.84]. No complications occurred in the two groups.

Conclusion:
ENTPD was used safely and effectively at the bedside to help patients with acute severe pancreatitis get feeding tubes. It not only improved the
high successful rate of placement, decreased the time and reduced the exposure to X-ray, but it was also very convenient for bedside placement
because of the portable equipment.
Modified Cassava Flour Sebagai Campuran dalam Pembuatan Oatmeal Cookies
Authors: Aryantini Ni Kadek Dita , Tunjungsari Komang Ratih 
Published: October 2023

Penelitian ini bertujuan untuk mengetahui kualitas oatmeal cookies dengan campuran tepung mocaf (Modified Cassava Flour) berdasarkan uji organoleptik, uji daya tahan dan analisis biaya produksi. Penelitian ini menggunakan 3 formulasi tepung mocaf terhadap tepung terigu yaitu P1 (50%), P2 (75%) dan P3 (100%). Pendekatan penelitian yang digunakan adalah Research and Development (R&D) dengan metode ADDIE. Teknik pengumpulan data yang digunakan adalah observasi dan kuesioner organoleptik. Teknik analisis data yang digunakan adalah analisis deskriptif kualitatif dan analisis deskriptif kuantitatif. Adapun hasil uji organoleptik dengan skor tertinggi yaitu P2 (75% tepung mocaf) total skor 323 dianggap sebagai produk yang paling disukai panelis berdasarkan indikator warna, rasa, aroma dan tekstur. P2 juga dianggap memenuhi standar mutu oatmeal cookies. Dari hasil uji daya tahan, produk oatmeal cookies dengan campuran tepung mocaf dari P1.P2 dan P3 tahan disimpan selama 7 hari di wadah tertutup dan suhu ruang. Dari analisis biaya produksi, Adapun biaya produksi sebesar Rp 49.378 dengan harga per unit Rp 2.000.

This study purpose to determine the quality of oatmeal cookies with a mixture of mocaf flour (Modified Cassava Flour) based on organoleptic tests, durability tests and analysis of production costs. This study used 3 formulations of mocaf flour to wheat flour, namely P1 (50%), P2 (75%) and P3 (100%). The research approach used is Research and Development (R&D) with the ADDIE method. Data collection techniques used were observation and organoleptic questionnaires. The data analysis technique used is descriptive qualitative analysis and descriptive quantitative analysis. The results of the organoleptic test with the highest score, namely P2 (75% mocaf flour) with a total score of 323, were considered the most preferred product by panelists based on indicators of color, taste, aroma and texture. P2 is also considered to meet the quality standards of wheat cake. From the results of the durability test, oatmeal cookies with a mixture of mocaf flour from P1.P2 and P3 were stored for 7 days in a closed container and room temperature. From the analysis of production costs, the production cost is Rp. 49,378 with a price per unit of Rp. 2,000.
Tracing Practices – questioning and circulating archives
Authors: Per Roar  , Luisa Greenfield  , Camilla Graff Junior  , Myna Trustram  
Published: October 2023

Our exposition comes out of a conversation and explorative research process about the performative potential of archives, both publicly and personally, shaped by four different artistic mediums and practices in film, performance art, choreography and essay writing. The shared medium has been through the use of text and online communication.

The research was developed through ongoing monthly meetings and notes that were taken since April 2019. From those meetings, we laid a structure where we each created our parts of what became the score for "Living and Lasting", which we first performed in Oslo and then in Berlin in 2022*. This score is the pivot point of our exposition.

Our working process includes considerable elements of risk and surprise by alternating between collaborative meetings and individual work. The first time we perform a new piece none of us know exactly what or how the others will present. Along with the audience, we experience portions of the text, movements, and media put together for the first time, without knowing whether the whole thing will coalesce, diverge, or fall apart.

(*) In Oslo at the 2022 Nordic Summer University (NSU) and in Berlin at the symposium “Who tells y/our story?” ​​by the artistic research project MEMORYWORK (2021-2024).