bluuebunny/crossref_metadata_2025_split huggingface dataset:
Bovicin HC5 and nisin reduce cell viability and the thermal resistance of Alicyclobacillus acidoterrestris endospores in fruit juices
Authors: Ribeiro Aryádina M , Paiva Aline D , Cruz Alexandra MO , Vanetti Maria CD , Ferreira Sukarno O , Mantovani Hilário C 
Published: January 2022

AbstractBACKGROUNDAlicyclobacillus acidoterrestris is an important thermoacidophilic spore‐forming bacterium in fruit‐juice deterioration, and alternative non‐thermal methods have been investigated to control fruit juice spoilage. This work aimed to evaluate the capacity of bovicin HC5 and nisin to inhibit the growth of vegetative cells and reduce the thermal resistance of endospores of A. acidoterrestris inoculated (107 CFU mL−1) in different fruit juices. The number of viable cells was determined after 12 h incubation at 43 °C in the presence and absence of nisin or bovicin HC5 (10–100 AU mL−1). The exposure time (min) required to kill 90% of the initial population (reduction of one log factor) at 90 ºC (D90ºC) was used to assess the thermal resistance of A. acidoterrestris endospores exposed (80 AU mL−1) or non‐exposed to the bacteriocins. Additionally, the effect of bovicin and nisin on the morphology and cell structure of A. acidoterrestris was evaluated by atomic force microscopy (AFM).RESULTSBovicin HC5 and nisin were bactericidal against A. acidoterrestris inoculated in fruit juices and reduced the D90°C values up to 30‐fold. AFM topographical images revealed substantial structural changes in the cellular framework of vegetative cells upon treatment with bovicin HC5 or nisin.CONCLUSIONSThese results emphasize the potential application of lantibiotics as additional hurdles in food processing to control thermoacidophilic spoilage bacteria in fruit juices. © 2022 Society of Chemical Industry.
Extraction optimization, physicochemical property, antioxidant activity, and α‐glucosidase inhibitory effect of polysaccharides from lotus seedpods
Authors: Wu Huwei , Shu Linping , Liang Tian , Li Yanping , Liu Yuanxiang , Zhong Xiuli , Xing Lingyu , Zeng Wei , Zhao Rui , Wang Xiaoyin 
Published: January 2022

AbstractBACKGROUNDLotus seedpods are an agricultural by‐product of lotus (Nelumbo nucifera Gaertn.), which is widely cultivated in Southeast Asia and Australia. Most lotus seedpods are considered waste and are abandoned or incinerated, resulting in significant waste of resources and heavy environmental pollution. For recycling lotus seedpods, the extraction optimization, physicochemical properties, antioxidant activity, and α‐glucosidase inhibitory effect of the polysaccharides contained therein were investigated in this study.RESULTSHot water extraction of lotus seedpod polysaccharides was optimized by using a response surface methodology combined with a Box–Behnken design, with the optimum conditions being as follows: a liquid/solid ratio of 25.0 mL g−1, an extraction temperature of 98.0 °C, and an extraction time of 138.0 min. Under these conditions, an experimental yield of 5.88 ± 0.06% was obtained. Physicochemical analyses suggested that lotus seedpod polysaccharides belong to acidic heteropolysaccharides and are principally composed of rhamnose, arabinose, galactose, glucose, mannose, and galacturonic acid. The polysaccharides content has a broad molecular weight distribution (2.15 × 105 to 1.77 × 107 Da), an α‐configuration, and mainly possesses smooth and sheet‐like structures. Biological evaluations showed that the polysaccharides possessed good scavenging activity on 2,2′‐azino‐bis(3‐ethylbenzothiazoline‐6‐sulfonic acid) diammonium salt, 1,1‐diphenyl‐2‐picryl‐hydrozyl, and hydroxyl radicals, and exerted an obvious inhibitory effect on α‐glucosidase activity. Moreover, the polysaccharides content was determined to be a mixed‐type noncompetitive inhibitor of α‐glucosidase.CONCLUSIONThe results indicate that lotus seedpod polysaccharides have potential as natural antioxidants and hypoglycaemic substitutes. This study provides the theoretical bases for the exploitation and application of polysaccharides from lotus seedpod by‐product resources. © 2022 Society of Chemical Industry.
Switchable hydrophilic solvent‐based dispersive liquid‐liquid microextraction coupled with high‐performance liquid chromatography for the determination of four types of sulfonylurea herbicides in soils
Authors: Han Wentao , Yang Yang , Hang Na , Zhao Wanning , Lu Pengfei , Li Songqing 
Published: January 2022

AbstractIn this study, switchable hydrophilic solvent‐based dispersive liquid‐liquid microextraction coupled with high‐performance liquid chromatography was developed for the determination of four sulfonylurea herbicides in soils. For the first time, the sample pretreatment was achieved due to the similar acid‐base status of sulfonylurea herbicides and switchable hydrophilic solvent. In the extraction step, sulfonylurea herbicides were extracted as anions and transferred to an alkaline solution with switchable hydrophilic solvent anions. In the concentration step, two types of anions were transformed to their molecular state after the aqueous solution was acidified. In addition, the dispersion and microextraction processes were completed efficiently with the simultaneous formation of analytes and extractants. The factors affecting the extraction performance were optimized. Under the optimized conditions, good linearity was observed for each herbicide with correlation coefficients ranging from 0.9952 to 0.9978. The limits of detection were in the range of 0.1–0.2 μg/g. Moreover, the relative recoveries of the sulfonylurea herbicides at spiking levels of 0.5, 1, and 1.5 μg/g in soil samples were between 75 and 111% (relative standard deviations: 0.4–11.4%). Therefore, the proposed method in this study could be successfully applied to the analysis of four types of sulfonylurea herbicides in soil samples.
Ion chromatograph with three‐dimensional printed absorbance detector for indirect ultraviolet absorbance detection of phosphate in effluent and natural waters
Authors: Lace Annija , Byrne Aideen , Bluett Simon , Malaquin Laurent , Raimbault Vincent , Courson Remi , Hayat Zain , Moore Breda , Murray Eoin 
Published: January 2022

AbstractAn ion chromatography system employing a low‐cost three‐dimensional printed absorbance detector for indirect ultraviolet detection towards portable phosphate analysis of environmental and industrial waters has been developed. The optical detection cell was fabricated using stereolithography three‐dimensional printing of nanocomposite material. Chromatographic analysis and detection of phosphate were carried out using a CS5A 4 × 250 mm analytical column with indirect ultraviolet detection using a 255 nm light‐emitting diode. Isocratic elution using a 0.6 mM potassium phthalate eluent combined with 1.44 mM sodium bicarbonate was employed at a flow rate of 0.75 mL/min. A linear calibration range of 0.5 to 30 mg/L PO43− applicable to environmental and wastewater analysis was achieved. For retention time and peak area repeatability, relative standard deviation values were 0.68 and 4.09%, respectively. Environmental and wastewater samples were analyzed with the optimized ion chromatography platform and the results were compared to values obtained by an accredited ion chromatograph. For the analysis of environmental samples, relative errors of <14 % were achieved. Recovery analysis was also carried out on both freshwater and wastewater samples and recovery results were within the acceptable range for water analysis using standard ion chromatography methods.
Outcomes of Simultaneous Liver‐Kidney Transplantation Using Kidneys of Deceased Donors With Acute Kidney Injury
Authors: Batra Ramesh K. , Ariyamuthu Venkatesh K. , MacConmara Malcolm P. , Gupta Gaurav , Gungor Ahmet B. , Tanriover Bekir 
Published: January 2022

Outcomes from simultaneous liver‐kidney transplantation (SLKT) when using kidneys from donors with acute kidney injury (AKI) have not been studied. We studied 5344 SLKTs between May 1, 2007, and December 31, 2019, by using Organ Procurement and Transplantation Network registry data supplemented with United Network for Organ Sharing–DonorNet data. Designating a donor as having AKI required by definition that the following criteria were met: (1) the donor’s condition aligned with the Kidney Disease: Improving Global Outcomes (KDIGO) international consensus guidelines and the terminal serum creatinine (Scr) level was ≥1.5 times the minimum Scr level for deceased donors before organ recovery and (2) the terminal Scr level was ≥1.5 mg/dL (a clinically meaningful and intuitive Scr threshold for defining AKI for transplant providers). The primary outcomes were liver transplant all‐cause graft failure (ACGF; defined as graft failures and deaths) and kidney transplant death‐censored graft failure (DCGF) at 1 year after transplant. The donors with AKI were young, had good organ quality, and had a short cold ischemia time. In the study cohort, 4482 donors had no AKI, whereas 862 had AKI (KDIGO AKI stages: 1, n = 521; 2, n = 202; and 3, n = 138). In the group with AKI and the group with no AKI, respectively, liver ACGF at 1 year (11.1% versus 12.9% [P = 0.13]; hazard ratio [HR], 1.20; 95% confidence interval [CI], 0.97‐1.49) and kidney DCGF at 1 year (4.6% versus 5.7% [P = 0.18]; HR, 1.27; 95% CI, 0.95‐1.70) did not differ in the full multivariable Cox proportional hazard models. Selected kidneys from deceased donors with AKI can be considered for SLKT.
Surjective separating maps on noncommutative Lp$L^p$‐spaces
Authors: Le Merdy Christian , Zadeh Safoura 
Published: January 2022

AbstractLet and let be a bounded map between noncommutative ‐spaces. If T is bijective and separating, we prove the existence of decompositions , and maps
such that , T1 has a direct Yeadon type factorisation and T2 has an anti‐direct Yeadon type factorisation. We further show that is separating in this case. Next we prove that for any (resp. any ), a surjective separating map is S1‐bounded (resp. completely bounded) if and only if there exists a decomposition such that has a direct Yeadon type factorisation and is subhomogeneous.
Estimation of the capillary level input function for dynamic contrast‐enhanced MRI of the breast using a deep learning approach
Authors: Bae Jonghyun , Huang Zhengnan , Knoll Florian , Geras Krzysztof , Pandit Sood Terlika , Feng Li , Heacock Laura , Moy Linda , Kim Sungheon Gene 
Published: January 2022

PurposeTo develop a deep learning approach to estimate the local capillary‐level input function (CIF) for pharmacokinetic model analysis of DCE‐MRI.MethodsA deep convolutional network was trained with numerically simulated data to estimate the CIF. The trained network was tested using simulated lesion data and used to estimate voxel‐wise CIF for pharmacokinetic model analysis of breast DCE‐MRI data using an abbreviated protocol from women with malignant (n = 25) and benign (n = 28) lesions. The estimated parameters were used to build a logistic regression model to detect the malignancy.ResultThe pharmacokinetic parameters estimated using the network‐predicted CIF from our breast DCE data showed significant differences between the malignant and benign groups for all parameters. Testing the diagnostic performance with the estimated parameters, the conventional approach with arterial input function (AIF) showed an area under the curve (AUC) between 0.76 and 0.87, and the proposed approach with CIF demonstrated similar performance with an AUC between 0.79 and 0.81.ConclusionThis study shows the feasibility of estimating voxel‐wise CIF using a deep neural network. The proposed approach could eliminate the need to measure AIF manually without compromising the diagnostic performance to detect the malignancy in the clinical setting.
Choosing optimal model parameterization for improving the accuracy of refraction seismic tomography
Authors: Chernyshov Gleb Stanislavovich , Duchkov Anton Albertovich , Koulakov Ivan Yurievich 
Published: January 2022

ABSTRACTSeismic ray tomography is a popular tool for reconstructing seismic velocity models from traveltime data. Here we study how the model parameterization affects the resolution and accuracy of the tomographic inversion for the near‐surface model building. In particular, we consider the weighting of the elements of the model perturbation vector based on the values of the initial velocity model. When the model parameters are defined in terms of velocities, then the tomographic‐inversion resolution is better for the shallow part but degrades for the deeper part of the model. The opposite is true when the model parameters are defined in terms of slowness values. This effect is associated with the method of forming the tomographic matrix. When linearizing the tomography problem for different model parameters, the matrix elements have different weight coefficients. This affects the inversion results and can lead to large errors. We suggest a new parameterization (in‐between the velocity and the slowness) that provides better quality of the tomographic inversion and balanced resolution between the shallow and deeper part of the model. The good performance of this new parameterization is confirmed by a series of synthetic tests and one real‐data example.
Complex regional telecoupling between people and nature revealed via quantification of trans‐boundary ecosystem service flows
Authors: Wang Yanwen , Hong Song , Wang Jinzhu , Lin Jingyu , Mu Hang , Wei Liyuan , Wang Zhen , Bryan Brett A. 
Published: January 2022

Abstract

Quantifying and mapping trans‐boundary ecosystem service (ES) flows can help identify dependencies and responsibilities for promoting economic development and environmental sustainability between nations, but few studies have focused on ES flows beyond national boundaries.

Our case‐study region—Central Asia—hosts one of the largest dryland areas in the world, and this ecosystem is vulnerable to climate variability and anthropogenic impacts. Understanding ES supply, demand and flows is essential for supporting human wellbeing, livelihoods and economic development.

In this study, we mapped the supply, demand and flows of four ES including freshwater provision, food provision, carbon sequestration and cultural (recreation) services between the five Central Asian nations of Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan and Turkmenistan for the year 2016. We quantified the spatial patterns in ES supply and demand at local and regional scales, driven by environmental heterogeneity and socio‐economic development, and revealed complex telecoupling of ES flows between nations. Kazakhstan provided the greatest amount of ES to other countries, especially food provision and carbon sequestration, while Uzbekistan was the biggest ES beneficiary, especially from freshwater and food provision services.

Our analysis of trans‐boundary ES flows helps to understand the complex telecoupling and rich interdependencies between people and nature between different countries. This information is essential for policy making to balance human and ecological needs, enhance the management of natural capital, and sustain ES provision in our metacoupled world.

A free Plain Language Summary can be found within the Supporting Information of this article.
Autism disparities for Black children: Acknowledging and addressing the problem through culturally responsive and socially just assessment practices
Authors: Ramclam Ashley N. , Truong Dieu M. , Mire Sarah S. , Smoots Kimberly D. , McNeel Morgan M. , Sakyi Georgina J. , Daniels Fre'Dasia M. 
Published: January 2022

AbstractHistorically, Black children with autism have faced diagnostic and treatment disparities across clinical and school samples despite nationally growing autism prevalence rates. Delays in receiving an accurate diagnosis impacts treatment and overall outcomes. Black autistic children are at‐risk of facing multiple barriers to receiving a timely diagnosis; however, many family factors serve as facilitators for improved daily functioning and quality of life. In light of that, it is imperative to critically assess current school‐based assessment practices for Black children to improve diagnostic accuracy for those with autism. School psychologists are well‐positioned to address these disparities through both culturally responsive service delivery and the incorporation of social justice into their practices. The following article will briefly review the current literature in this area and offer recommendations for culturally responsive and socially just school psychology service delivery as it pertains to autism assessment for Black children.
A mixed‐methods analysis of averted mass violence in schools: Implications for professional school counselors
Authors: Cowan Rebecca G. , Tedeschi P. J. , Corbin Michael , Cole Rebekah 
Published: January 2022

AbstractThe purpose of this study is to examine how recent incidents of planned mass violence in high schools within the United States were successfully averted. Using the Averted School Violence database, this study utilizes a mixed‐methods content analysis approach to analyze 82 incidents of averted mass violence in high schools that occurred post‐Columbine era. The following three themes were identified: attack motives and logistics, plot discovery, and attack aversion. Implications for professional school counselors in preventing similar mass violence attacks in the future are discussed, including fostering trusting relationships between students and adults, providing education to parents about social media platforms and proper firearms storage, establishing threat assessment teams, and educating parents, students, and school personnel about warning signs for violence.
RicemicroRNA171f/SCL6module enhances drought tolerance by regulation of flavonoid biosynthesis genes
Authors: Um Taeyoung , Choi Joohee , Park Taehyeon , Chung Pil Joong , Jung Se Eun , Shim Jae Sung , Kim Youn Shic , Choi Ik‐Young , Park Soo Chul , Oh Se‐Jun , Seo Jun Sung , Kim Ju‐Kon 
Published: January 2022

AbstractPlants have evolved sophisticated defense systems to enhance drought tolerance. These include the microRNA (miRNA) group of small noncoding RNAs that act as post‐transcriptional regulators; however, details of the mechanisms by which they confer drought tolerance are not well understood. Here, we show thatosa‐MIR171f, a member ofosa‐MIR171gene family, is mainly expressed in response to drought stress and regulates the transcript levels ofSCARECROW‐LIKE6‐I(SCL6‐I) andSCL6‐IIin rice (Oryza sativa). TheSCL6genes are known to be involved in shoot branching and flag leaf morphology.Osa‐MIR171f‐overexpressing (osa‐MIR171f‐OE) transgenic plants showed reduced drought symptoms compared with non‐transgenic (NT) control plants under both field drought and polyethylene glycol (PEG)‐mediated dehydration stress conditions. Transcriptome analysis ofosa‐MIR171f‐OE plants andosa‐mir171f‐knockout (K/O) lines generated by clustered regularly interspaced short palindromic repeats (CRISPR/Cas9) revealed thatosa‐mature‐miR171a‐f (osa‐miR171) regulates the expression of flavonoid biosynthesis genes, consequently leading to drought tolerance. This upregulation in theosa‐MIR171f‐OE plants, which did not occur in NT control plants, was observed under both normal and drought conditions. Our findings indicate thatosa‐miR171 plays a role in drought tolerance by regulatingSCL6‐IandSCL6‐IItranscript levels.
Grief as a mediator of the relationship between empathy and compassion fatigue
Authors: Shi Hongrui , Shan Baifeng , Zheng Jianzhong , Zhang Ying , Zhang Jing , Hu Xiuying 
Published: January 2022

AbstractObjectiveOncology nurses are at high risk of developing compassion fatigue (CF) because of the persistent exposure to patients' suffering and death. Empathy is a prerequisite cognitive reaction for CF. Nurses with greater empathy levels are more prone to develop an emotional connection with patients. However, it is this kind of close bonds that led nurses to experience a deep sense of grief. Cumulative grief may eventually develop into CF. This study examined the levels of grief, empathy and CF, evaluated the correlation among empathy, grief and CF, and verified the role grief as a mediator of the relationship between empathy and CF.MethodsParticipants were 794 Chinese oncology nurses in a cross‐sectional study. We measures consisted a demographic questionnaire, the Interpersonal Reactivity Index, the Texas Revised Inventory of Grief‐Present, and the Professional Quality of Life Scale.ResultsOncology nurses showed moderate levels of empathy and grief, moderate to high levels of CF. Perspective taking was negatively related to grief and secondary traumatic stress (STS). Empathic concern was negatively related to burnout (BO). Personal distress was positively related to grief, STS and BO. Grief was positively related to STS and BO. Grief played a partial mediating role between empathy and STS.ConclusionsOncology nurses commonly experience CF. There is a need to provide interventions and effective supports for oncology nurses to improve their empathy ability, and help them cope with grief and CF.
Shearing Sulfur Edges of VS2 Electrocatalyst Enhances its Nitrogen Reduction Performance
Authors: Zhao Liang , Xiong Yuanyuan , Wang Xiaoxuan , Zhao Rui , Chi Xinyue , Zhou Yixiang , Wang Huaizhi , Yang Zhiyu , Yan Yi‐Ming 
Published: January 2022

AbstractElectrochemical N2 fixation requires effective electrocatalysts to expedite the nitrogen reduction reaction (NRR) kinetics and suppress the concomitant hydrogen evolution reaction (HER). Although transition metal sulfides have been deemed as efficient NRR electrocatalysts, it remains a great challenge to suppress the serious HER to achieve high Faradaic efficiency (FE). Herein, vanadium disulfide (VS2) is deliberately designed by partially shearing its sulfur (S) edges through a simple calcination treatment at 350 °C. The as‐prepared VS2‐350 electrocatalyst exhibits a highest NH3 yield of 20.29 µg h−1 mgcat−1 with a promising FE of 3.86%, which is significantly higher than the counterpart of untreated VS2 (VNH3: 15.92 µg h−1 mgcat−1, FE: 1.69%). Experimental and computational results reveal that shearing the S edges can substantially inhibit the HER and expose more V atoms as active sites. Meanwhile, the mechanistic analysis shows that the N2 activation at V active sites follows an “acceptance‐donation” mechanism, while the N2 conversion to NH3 follows a hybrid 2 pathway at the VS2‐350 electrocatalyst. This work provides a simple strategy of designing high‐performance NRR electrocatalysts based on a deep understanding of the atomic sites dependent catalytical activity.
′Ab Ovo′ Chiral Phases and Chiral Reagents for Liquid Chromatographic Separation and Isolation of Enantiomers
Authors: Bhushan Ravi 
Published: January 2022

AbstractThe de‐novo approach of mixing chirally pure reagents or Cu(II)‐L‐amino acid complexes in the slurry of silica gel for preparing TLC plates was reported from author's laboratory and was successful for separation and isolation of enantiomers. Using high molar absorptivity molecules, e. g., 1,5‐difluoro‐2,4‐dinitrobenzene and cyanuric chloride, more than 38 new chiral derivatizing reagents were synthesized in our laboratory by straightforward nucleophilic substitution with simple chiral auxiliaries. Besides, (S)‐naproxen, (S)‐ketoprofen, and (S)‐levofloxacin were used as chiral platforms. A conceptual approach using both achiral phases in chromatography for enantioseparation was also adopted. 1H NMR and DFT based software were used to explain structures of non‐covalent and covalent diastereomeric pairs and determination of configuration and separation mechanism. The methods can be easily used to determine and control enantiomeric purity with advantages over a variety of commercial chiral phases.