bluuebunny/crossref_metadata_2025_split huggingface dataset:
Habitat suitability modeling of a conservation‐significant fish species of the Kosi River, Uttarakhand, India
Authors: Khwairakpam Eliza , Dhawan Bhawna , Sivakumar Kuppusamy , Johnson Jeyaraj Antony 
Published: November 2022

AbstractWater quality plays a vital role in the sustenance of aquatic life, including fish. Therefore, an inclusive understanding of water quality parameters can be considered an essential step in framing the conservation and management strategy of an aquatic ecosystem. This study examines the habitat suitability of a conservation‐significant fish, the Tor putitora, and two associated fishes, the Labeo dyocheilus and the Garra gotyla, in relation to the water quality parameters of the Kosi River. Four crucial water quality parameters, water temperature, dissolved oxygen, electrical conductivity, and pH, were included in the QUAL2K modeling. Furthermore, hydrological processes were modeled using the soil and water assessment tool, and flow was used as an input in the QUAL2K model. The simulated water quality was correlated with fish habitat and analyzed through the analytical hierarchical process (AHP). Results suggested that the habitats of the Kosi were more suitable in the post‐monsoon rather than pre‐monsoon. Tor putitora, the flagship species of the Kosi, preferred the river habitats with a lower water temperature and higher dissolved oxygen for spawning. Thus, we recommend securing such habitats and managing them in collaboration with local communities for the long‐term conservation of this endangered Himalayan species.
Applications of Emerging Nanomaterials in Drilling Fluids
Authors: Ahmed Anwar , Pervaiz Erum , Noor Tayyaba 
Published: November 2022

AbstractNanomaterials find several applications in the oilfield operations. In oilwell drilling, nanomaterials are being used for mitigating wellbore instability conditions, improving thermal stability of the fluid, minimizing formation damage by preventing fluid invasion into the reservoir, improving fluid rheology, and controlling fluid loss. A wide range of nanomaterials from organic as well as inorganic and composites are being developed to accomplish the mentioned functions. Significant nanomaterials being developed include nanocellulosic particles, nanoclay, nanosilica, nanometals, nanometal oxides and nanopolymers. Improving fluid properties to develop smart fluids by the incorporation of nanomaterials is an emerging research field which is yielding promising results. This review article presents the recent development made in the applications of the nanomaterials in drilling fluids especially the nanosilica particles surface modified by organic ligands. Surface modification of nanosilica with organic ligands namely 3‐Glycidoxypropyl‐triethoxy silane (GPTS), hyperbranched polyethyleneimine (HPEI) and Moringa oleifera cationic protein (MOCP) are discussed. Applications of nanomaterials in drilling fluids to minimize wellbore instability, prevent formation damage, improve thermal stability and conductivity, stabilize fluid rheology, improve hole cleaning, and minimize the chances of downhole string sticking have been reviewed.
Preparation and Characterization of LCT/SPEEK Composite Membrane for PEMFC Application
Authors: Zhang Yuqing , Zhang Ailing , Wang Yujuan , Wang Song , Li Sanxi 
Published: November 2022

AbstractA novel SPEEK‐based blends proton exchange membrane doping liquid crystal polymer intercalated montmorillonite (LCT) were prepared by solution casting technology. FT‐IR, XRD and POM proved that SPEEK contained sulfonic acid group and LCT which had liquid crystal intercalated into SPEEK matrix. LCT/SPEEK composite membrane with 1.0 wt% had higher swelling rate and proton conductivity than those membranes. It was also shown that the proton conductivity of LCT/SPEEK composite membrane decreased, but reached 0.137 S/cm when LCT was 1.0 wt%, and the swelling rate of SPEEK membrane was significantly decreased 6.19 % to 3.38 %. The layer silicate structure in LCT promotes its dimensional stability, and the sulfonic group forms hydrogen bond network in SPEEK matrix to promote proton transfer. These results propose the composite membranes as a potential candidate for PEMFC at 25 °C making SPEEK composite membrane.
Advances in Carbon‐Carbon Bond Activation by Using Photocatalysts: A Mini Review
Authors: Pham Thuy Thanh 
Published: November 2022

AbstractOver the past decades, C−C bond activation has been an attractive area in organic synthesis due to its power in construction of complexed molecules. This review covers photocatalytic C−C bond activation methods that have been become an emerging area in organic synthesis in the past decades. The literature coverage is from 2001 to December 2021.
A Tetraphenylethene‐Based Aggregation‐Induced Emission Luminogen (AIEgen) With Mechanochromic Phenomena for Highly Selective Naked‐Eye Detection of Mno4− Directly in Aqueous Media
Authors: Jagadhane Kishor S. , Bhosale Sneha R. , Moyo Alfredi A. , Kolekar Govind B. , Sharma Kirankumar K. , Yadav Hemraj M. , Anbhule Prashant V. 
Published: November 2022

AbstractIt is challenging to work on the detection of toxic anions and pollutants directly from aqueous media by using organic molecules. The ability to detect MnO4− selectively and sensitively is essential to improving human health and protecting the environment. As a result, a Tetraphenylethylene‐based chemosensor was successfully synthesized and fully characterized with modern spectroscopic techniques and applied as a new rapid naked‐eye detection for the MnO4− in a mixed aqueous media ACN: H2O (v/v=1/9) by significantly switching off an emission in a mixed aqueous media over another anion. Chemosensor has been thoroughly studied, which shows remarkable photophysical properties such as aggregation‐induced emission (AIE) and mechanochromic phenomena. The linear regression (R2) is ≈ 0.98 μgmL−1 and the LOD (the detection limit) as low as 0.150418 μgmL−1 is possible for MnO4−. This work demonstrates structure‐property and application relationships of TPEgen scaffolds and connects topics such as AIE, mechanochromic phenomenon, and naked‐eye fluorescence sensing. The current study‘s fundamental knowledge helps improvement in the fields of TPEgen, anion coordination triggered emission and naked eye fluorescence sensing. As a result, a chemosensor can be developed into a prospective luminescent sensor for detecting MnO4−, as well as onsite detection by using the paper‐based sensor.
Solid‐State Structures of Primary Long‐Chain Alkylamine Borane Adducts – Synthesis, Properties and Computational Analysis
Authors: Turani‐I‐Belloto Kevin , Valero‐Pedraza María‐José , Petit Eddy , Chiriac Rodica , Toche François , Granier Dominique , Yot Pascal G. , Alauzun Johan G. , Demirci Umit B. 
Published: November 2022

AbstractTwo new members of the amine boranes family are hexadecylamine borane C16H33NH2BH3 (C16AB) and octadecylamine borane C18H35NH2BH3 (C18AB). They are easily synthesized by reaction of the corresponding amines with borane dimethyl sulfide. Both are white solids; they are crystalline and isostructural (monoclinic, s.g. P21/a (No. 14)). Their successful synthesis has been verified by molecular (FTIR, Raman, NMR) and structural analyses as well as computational calculations (e. g. Mulliken charges). These analyses have also pointed out the existence of dihydrogen bonds between Hδ+ of NH2 of one molecule and Hδ− of BH3 of another molecule. The thermal stability of C16AB and C18AB was studied. Both solids melts at 70–80 °C; between 100 and ca. 210 °C they dehydrogenate while releasing 1.1‐1.4 wt% of pure H2; and, above 210 °C, they decompose in high extent. All of these findings may open the way to future works on molecular self‐assembly, synthesis of advanced materials and hydrogen storage. This is discussed hereafter.
High‐strength steel‐wire‐mesh reinforced square concrete filled steel tubular columns: Concept and compressive behavior
Authors: Xiong Ming‐Xiang , Xiong Gong‐Yu , Hu Qi‐Dong , Chen Xu‐Chi 
Published: November 2022

SummaryConfinement from steel tube to concrete core is generally low in square concrete‐filled steel tubular (CFST) columns compared with their circular counterparts. To improve it, a new confining measure based on high‐strength steel wire meshes (SWMs) has been proposed in this study. Different from traditional measures usually confining the concrete core from outside of it, the SWM confines the concrete core from inside of it by utilizing interaction force between SWM and concrete. Axial compression test on short SWM reinforced CFST columns was conducted to examine the efficiency of SWM. The test results demonstrated that the compressive load‐carrying capacity of the square CFST column could be improved by 21.7% with a steel wire ratio of 1.54%. Finite element analysis was carried out to investigate some mechanical behaviors that were not captured in the test. It was revealed that the strength of SWM can be fully utilized, provided the entire section of concrete is reinforced by SWM and the SWM is placed along the middle half‐part of column. Based on the results of this study, the use of high‐strength SWM is proved an effective measure to improve the compressive performance of square CFST columns.
Determination of Arterial Compliance Using Electrical Peripheral Bioimpedance
Authors: Mansouri Sofiene 
Published: November 2022

AbstractArterial compliance is an important cardiovascular parameter. It can be measured by several techniques. Most of them are invasive. In this article, we investigated and confirmed the relevance of using a non‐invasive method, peripheral electrical impedance to estimate compliance. We considered a study population composed by a healthy group of 82 volunteers, and a diseases group of 59 volunteers. We determined arterial compliance values for all subjects and studied them as a function of health status, gender, age, blood pressure, blood volume, and baseline impedance Z0. Experimental results showed that arterial compliance is significantly lower in cardiac (1.7 ± 1.0), or diabetic (1.5 ± 1) patients compared to healthy subjects, 2.6 ± 1.1 ml/mmHg (p < 0.001). The comparison of arterial compliance values estimated by peripheral bioimpedance and by echocardiography showed acceptable precision with a mean absolute error = 0.1 and a mean percentage error = 8.51%. Arterial compliance is a potentially useful hemodynamic parameter that could be successfully used to detect several diseases and as a predictor of future heart disease. © 2022 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.
Antarctica's vegetation in a changing climate
Authors: Colesie Claudia , Walshaw Charlotte V. , Sancho Leopoldo Garcia , Davey Matthew P. , Gray Andrew 
Published: November 2022

AbstractAntarctica plays a central role in regulating global climatic and oceanographic patterns and is an integral part of global climate change discussions. The functioning of Antarctica's terrestrial ecosystems is dominated by poikilohydric cryptogams such as lichens, bryophytes, eukaryotic algae, and cyanobacteria and there are only two native species of vascular plants. Antarctica's vegetation is highly adapted to the region's extreme conditions but, at the same time, it is potentially highly susceptible to climatic fluctuations. Biological responses to shifts in temperature, water availability, wind patterns, snow, and ice cover are complex, taxa‐specific and act on different temporal and spatial scales. In maritime Antarctica, where warming and mass loss of outlet glaciers have been mainly observed, the vegetation is expected to show increases in productivity, abundance, and cover. In continental Antarctica, observational and experimental evidence is still sparse, but it is pointing toward even drier and harsher conditions for survival. We need more information on what the observed and predicted changes in Antarctic vegetation are for different regions and ecosystems. This will inform us how environmental change and human impact will shape the future of these ecosystems, and whether the speed and magnitude of change have habitat‐specific effects and implications. Antarctica's unique ecosystems are changing and in this review, we describe the current situation, tools to measure, and evaluate change and how change is likely to look in the future.This article is categorized under:
Climate, Ecology, and Conservation > Observed Ecological Changes
Assessing Impacts of Climate Change > Evaluating Future Impacts of Climate Change
Climate, Ecology, and Conservation > Modeling Species and Community Interactions
Assessing Impacts of Climate Change > Observed Impacts of Climate Change
Endoscopy-Assisted Breast Surgery for Breast Cancer
Authors: Wei Tang Siau 
Published: November 2022

AbstractModified radical mastectomy was traditionally the preferred method for treating operable breast cancer. With advances in surgical techniques over the past few decades, breast-conserving surgery (BCS) and sentinel lymph node biopsy are now acceptable treatments for early breast cancer. Over the last two decades, endoscopic techniques had initially been adapted to facilitate cosmetic breast augmentation surgery but are now increasingly adopted in the surgical management of breast cancer [1–3]. It is often done to optimize the cosmetic outcome by performing surgery through small wounds hidden in the axilla or periareolar areas. If endoscopic mastectomy is performed, it is often followed by immediate reconstruction.
Transoral Endoscopic Zenker Diverticulotomy
Authors: Ng Christina H. L. , Lim Chwee Ming 
Published: November 2022

AbstractZenker’s diverticulum is an outpouching that emerges from Killian’s triangle dehiscence, formed by oblique fibers of the inferior pharyngeal constrictor muscle and cricopharyngeus muscle. In this chapter, we review the clinical presentation, pathophysiology and diagnostic features of Zenker’s diverticulum. The two main surgical procedures to treat symptomatic Zenker’s diverticulum are presented with particular emphasis on transoral endoscopic Zenker diverticulotomy. The surgical technique of performing this procedure is presented, along with accompanying endoscopic pictures to demonstrate the step-by-step illustration of this technique.
One Anastomosis Gastric Bypass (OAGB)
Authors: Salgaonkar Hrishikesh , Sharples Alistair , Marimuthu Kanagaraj , Rao Vittal , Balaji Nagammapudur 
Published: November 2022

AbstractOne-anastomosis gastric bypass is an attractive option in the armament of a Bariatric surgeon. A relatively simple procedure, it has been effective in inducing weight loss and resolution of obesity-associated comorbidities. Easy technique, shorter operative times, and low complication rates make it an attractive alternative option, particularly in super-obese individuals. While concerns remain regarding the long-term safety profile with regards to biliary reflux, risk of esophagogastric malignancies, and marginal ulcer. For the scope of this chapter, our focus will be on the advent of the concept, the surgical technique, and tips and tricks.
Laparoscopic Intraperitoneal Onlay Mesh (IPOM) and IPOM Plus
Authors: Malik Sajid , Wijerathne Sujith 
Published: November 2022

AbstractMinimally Invasive Surgery has revolutionized the surgical practice by imparting its ability to avoid major abdominal wall incisions [1]. It is expected that laparoscopic surgery might reduce the burden of incisional hernias which is the most common complication after abdominal surgery and despite ongoing research in wound closure and reparative techniques, abdominal incisional hernia remains an unresolved problem [1]. The outcome of incisional hernia may have major social and economic implications and worldwide 10–30% of patients undergoing laparotomy will develop an incisional hernia and subsequent conventional open repair often fails to adequately address this substantial problem [2]. The recurrence rate for primary tissue repairs may approach the 35% range, which is higher than the primary occurrence rate; when repaired for recurrence, rates have been reported greater than 50%. Although the advent of prosthetic repair has significantly reduced the recurrence rate compared with that of primary suture repair, it remains in the ranges of 10–24% [3].
Laparoscopic Left Hemicolectomy
Authors: Shen Ming-Yin , Leow Yeen Chin , Chen William Tzu-Liang 
Published: November 2022

AbstractWhat is the clear definition of left colectomy? Unfortunately, the answer is not as clear as it is with a right colectomy. The resection can involve resection of the colonic segment anywhere between the left transverse colon and the upper rectum. For tumors involving the left transverse colon or splenic flexure, left hemicolectomy (LC) is the preferred operation. A LC is considered to be a resection of the mid-transverse colon to the descending/sigmoid junction. In complete mesocolic excision (CME) and central vascular ligation (CVL) for left transverse colon or splenic flexure colon cancer, ligation of the inferior mesenteric vein (IMV), left branch of the middle colic artery (lt-MCA), and left colic artery (LCA) at the root must be considered [1]. For resection of mid- or distal descending colon tumors, the oncological resection requires division of the inferior mesenteric artery at its origin. If the resection carried out involved the distal transverse colon up to the sigmoid-descending junction, it should be considered as a left segmentary colectomy [2].
Laparoscopic Total Colectomy
Authors: Shen Mina Ming Yin , Chen William Tzu-Liang 
Published: November 2022

AbstractTotal colectomy (TC) with ileorectal (IRA) is frequently performed for colorectal cancer, familial adenomatous polyposis, unidentified bleeding from the lower GI tract, inflammatory bowel disease, and sometimes for extended diverticulosis or colonic inertia. Minimally invasive approaches to total colectomy have significantly lower morbidity compared to open approach, with significantly shorter hospitalization length [1].
Laparoscopic Ventral Mesh Rectopexy
Authors: Seow-En Isaac , Kwong-Wei EmileTan , Chen WilliamTzu-Liang 
Published: November 2022

AbstractRectal prolapse (RP) is a disabling condition and can range from internal rectal prolapse (IRP) or rectal intussusception to full-thickness external rectal prolapse (ERP). RP occurs in 0.5% of the general population, with a higher incidence in females and the elderly [1].Intellectual disability and psychiatric conditions are a risk factor for RP in younger patients. Patients with an IRP usually experience functional symptoms of obstructed defecation (OD) or fecal incontinence (FI), while patients with ERP suffer from pain, rectal bleeding, and FI [2].Two recent guidelines have been published on the management of rectal prolapse, the 2017 American guidelines [1] and the 2017 Dutch guidelines [2].The recommendations in this chapter are summarized from these sets of guidelines as well as additional up-to-date evidence.
Imaging-Enhancing System
Authors: Lee-Ong Alembert , Buenafe Alfred Allen 
Published: November 2022

AbstractVisualization is one of the fundamental pillars (including CO2 insufflation and instrumentation) critical to performing MIS. Initially evolved from direct view through the laparoscope to indirect view on the monitor projected from a camera system. Early advances were geared towards improving the image quality and reproduction of stereoscopic vision. Current advancements involve in part or in combination, the application of optical filters to manipulate specific light spectrums (narrow-band imaging) and the use of fluorescent dye (indocyanine green-fluorescent imaging) to see beyond what can be viewed with the naked eye, coupled with the advantage of real-time application. Narrow-band imaging is primarily used in gastrointestinal endoscopy to detect mucosal pathologies, while ICG aid in revealing specific structures beneath tissues and assess tissue perfusion; it is finding interest for application in various MIS procedures.
Instrumentations and Access Devices
Authors: Lee-Ong Alembert , Buenafe Alfred Allen 
Published: November 2022

AbstractMinimally Invasive Surgery (MIS) instruments are patterned after conventional hand instruments to perform similar specific functions; they are designed to pass and perform through small diameter ports and at a distance to the target tissues. The development of instruments has evolved since the early period of MIS, starting from the use of rudimentary gynecologic instruments; at that time. Gynecology was the only specialty widely performing laparoscopic procedures. The evolution in design, ergonomics, and variety has been pivotal for advancing endo-laparoscopic surgery to perform more complex surgical procedures with safety and better outcome. Various evolving concepts of MIS like Single-site or reduced Surgery, Natural Orifice Transluminal Endoscopic Surgery (NOTES), Needlescopic Surgery, and Robotic-assisted Surgery have also pushed the development of features such as articulation control, pre-bent configuration, smaller diameter, and robotic instruments to meet specific needs.
Biodegradation of different PET variants from food containers by Ideonella sakaiensis
Authors: Walter Andreas , Sopracolle Laura , Mutschlechner Mira , Spruck Martin , Griesbeck Christoph 
Published: November 2022

AbstractThe accumulation of macro-, micro- and nano-plastic wastes in the environment is a major global concern, as these materials are resilient to degradation processes. However, microorganisms have evolved their own biological means to metabolize these petroleum-derived polymers, e.g., Ideonella sakaiensis has recently been found to be capable of utilizing polyethylene terephthalate (PET) as its sole carbon source. This study aims to prove its potential capacity to biodegrade two commercial PET materials, obtained from food packaging containers. Plastic pieces of different crystallinity were simultaneously introduced to Ideonella sakaiensis during a seven-week lasting investigation. Loss in weight, appearance of plastics, as well as growth of Ideonella sakaiensis—through quantitative real-time PCR—were determined. Both plastics were found enzymatically attacked in a two-stage degradation process, reaching biodegradation capacities of up to 96%. Interestingly, the transparent, high crystallinity PET was almost fully degraded first, followed by the colored low-crystallinity PET. Results of quantitative real-time PCR-based gene copy numbers were found in line with experimental results, thus underlining its potential of this method to be applied in future studies with Ideonella sakaiensis.
On the Exponent Governing the Correlation Decay of the $$\hbox {Airy}_1$$ Process
Authors: Basu Riddhipratim , Busani Ofer , Ferrari Patrik L. 
Published: November 2022

AbstractWe study the decay of the covariance of the$$\hbox {Airy}_1$$Airy1process,$${{\mathcal {A}}}_1$$A1, a stationary stochastic process on$$\mathbb {R}$$Rthat arises as a universal scaling limit in the Kardar–Parisi–Zhang (KPZ) universality class. We show that the decay is super-exponential and determine the leading order term in the exponent by showing that$${{\,\textrm{Cov}\,}}({{\mathcal {A}}}_1(0),\mathcal{A}_1(u))= e^{-(\frac{4}{3}+o(1))u^3}$$Cov(A1(0),A1(u))=e-(43+o(1))u3as$$u\rightarrow \infty $$u→∞. The proof employs a combination of probabilistic techniques and integrable probability estimates. The upper bound uses the connection of$$\mathcal{A}_1$$A1to planar exponential last passage percolation and several new results on the geometry of point-to-line geodesics in the latter model which are of independent interest; while the lower bound is primarily analytic, using the Fredholm determinant expressions for the two point function of the$$\hbox {Airy}_1$$Airy1process together with the FKG inequality.