keyword
https://read.qxmd.com/read/38691733/pulse-pattern-manipulation-of-dichromatic-soliton-complexes-by-a-twistable-tapered-fiber-filter
#1
JOURNAL ARTICLE
Bowen Liu, Shinji Yamashita, Sze Yun Set
Soliton complexes highlight the particle-like dynamics of dissipative pulses. However, simple and reliable manipulation of bound solitons remains challenging, particularly for all-polarization-maintaining (PM) configurations that are free from random polarization perturbations. Here, we report controllable pulse patterns of robustly coexisting dichromatic soliton complexes in an all-PM fiber laser based on a twistable tapered-fiber filter. According to the twist angle, dichromatic pulses are switched between different patterns, and components at each wavelength can be independently manipulated, extending encodings from the time to the frequency domain...
May 1, 2024: Optics Letters
https://read.qxmd.com/read/38690610/heat-related-changes-in-the-velocity-and-kinetic-energy-of-flowing-blood-influence-the-human-heart-s-output-during-hyperthermia
#2
JOURNAL ARTICLE
Kazuhito Watanabe, Nuno Koch Esteves, Oliver R Gibson, Koichi Akiyama, Sumie Watanabe, José González-Alonso
Passive whole-body hyperthermia increases limb blood flow and cardiac output ( <mml:math xmlns:mml="https://www.w3.org/1998/Math/MathML"> <mml:semantics><mml:mover><mml:mi>Q</mml:mi> <mml:mo>̇</mml:mo></mml:mover> <mml:annotation>$\dot Q$</mml:annotation></mml:semantics> </mml:math> ), but the interplay between peripheral and central thermo-haemodynamic mechanisms remains unclear. Here we tested the hypothesis that local hyperthermia-induced alterations in peripheral blood flow and blood kinetic energy modulate flow to the heart and <mml:math xmlns:mml="https://www...
May 1, 2024: Journal of Physiology
https://read.qxmd.com/read/38689621/britanin-a-beacon-of-hope-against-gastrointestinal-tumors
#3
REVIEW
Agnieszka Kajdanek, Damian Kołat, Lin-Yong Zhao, Mateusz Kciuk, Zbigniew Pasieka, Żaneta Kałuzińska-Kołat
Britanin is a bioactive sesquiterpene lactone known for its potent anti-inflammatory and anti-oxidant properties. It also exhibits significant anti-tumor activity, suppressing tumor growth in vitro and in vivo . The current body of research on Britanin includes thirty papers predominantly related to neoplasms, the majority of which are gastrointestinal tumors that have not been summarized before. To drive academic debate, the present paper reviews the available research on Britanin in gastrointestinal tumors...
April 24, 2024: World Journal of Clinical Oncology
https://read.qxmd.com/read/38688990/non-thermal-phonon-dynamics-and-a-quenched-exciton-condensate-probed-by-surface-sensitive-electron-diffraction
#4
JOURNAL ARTICLE
Felix Kurtz, Tim N Dauwe, Sergey V Yalunin, Gero Storeck, Jan Gerrit Horstmann, Hannes Böckmann, Claus Ropers
Interactions among and between electrons and phonons steer the energy flow in photo-excited materials and govern the emergence of correlated phases. The strength of electron-phonon interactions, decay channels of strongly coupled modes and the evolution of three-dimensional order are revealed by electron or X-ray pulses tracking non-equilibrium structural dynamics. Despite such capabilities, the growing relevance of inherently anisotropic two-dimensional materials and functional heterostructures still calls for techniques with monolayer sensitivity and, specifically, access to out-of-plane phonon polarizations...
April 30, 2024: Nature Materials
https://read.qxmd.com/read/38688150/gallbladder-volvulus-in-pediatric-age-case-report
#5
Mekdelawit Mesfin Tadesse, Mengistu Solomon Sefu
INTRODUCTION: Gallbladder volvulus is the rarest form of gall bladder pathology and it is also rare cause of acute abdomen. The exact etiology of gallbladder volvulus is undetermined and mostly mimics acute cholecystitis which delays diagnosis and management of patients. CASE PRESENTATION: In this case report we present 7 years old male child who underwent exploratory laparotomy and intraoperative findings of 360 degree twisted, frankly gangrenous, and perforated at the fundus of the gallbladder...
April 21, 2024: International Journal of Surgery Case Reports
https://read.qxmd.com/read/38687972/robustly-and-intrinsically-stretchable-ionic-gel-based-moisture-enabled-power-generator-with-high-human-body-conformality
#6
JOURNAL ARTICLE
Wenya He, Puying Li, Haiyan Wang, Yajie Hu, Bing Lu, Chuanxin Weng, Huhu Cheng, Liangti Qu
Direct harvesting of energy from moist air will be a promising route to supply electricity for booming wearable and distributed electronics, with the recent rapid development of the moisture-enabled electricity generator (MEG). However, the easy spatial distortion of rigid MEG materials under severe deformation extremely inconveniences the human body with intense physical activity, seriously hindering the desirable applications. Here, an intrinsically stretchable moisture-enabled electricity generator (s-MEG) is developed based on a well-fabricated stretchable functional ionic gel (SIG) with a flexible double-network structure and reversible cross-linking interactions, demonstrating stable electricity output performance even when stretched up to 150% strain and high human body conformality...
April 30, 2024: ACS Nano
https://read.qxmd.com/read/38687607/pl-hmsc-and-ch-hmsc-derived-soluble-factors-inhibit-proliferation-but-improve-hgbm-cell-migration-by-activating-tgf-%C3%AE-and-inhibiting-wnt-signaling
#7
JOURNAL ARTICLE
Tanawat Uthanaphun, Sirikul Manochantr, Chairat Tantrawatpan, Duangrat Tantikanlayaporn, Pakpoom Kheolamai
Glioblastoma multiforme (GBM) is one of the most common and aggressive brain tumors. GBM resists most chemotherapeutic agents, resulting in a high mortality rate in patients. Human mesenchymal stem cells (hMSCs), which are parts of the cancer stroma, have been shown to be involved in the development and progression of GBM. However, different sources of hMSCs might affect GBM cells differently. In the present study, we established hMSCs from placenta(PL-hMSC) and chorion (CH-hMSC) to study the effects of their released soluble factors on the proliferation, migration, invasion, gene expression, and survival of human GBM cells, U251...
April 30, 2024: Bioscience Reports
https://read.qxmd.com/read/38684005/can-twisted-double-bonds-facilitate-stepwise-2-2-cycloadditions
#8
JOURNAL ARTICLE
Renan V Viesser, Clayton P Donald, Jeremy A May, Judy I Wu
Computational studies for a series of low to high strain anti-Bredt alkenes suggest that those with highly twisted bridgehead double bonds and a small singlet-triplet energy gap may undergo facile stepwise [2 + 2] cycloadditions to furnish four membered rings. A selection of reaction substrates, including ethylene, acetylene, perfluoroethylene, and cyclooctyne are considered.
April 29, 2024: Organic Letters
https://read.qxmd.com/read/38683414/new-suture-probe-canaloplasty-combined-with-suprachoroidal-collagen-implantation
#9
JOURNAL ARTICLE
Arno Haus, Peter Szurman, Lisa Müller, Gerardo Farese, Anna-Maria Seuthe
PURPOSE: To present the modified surgery technique of new suture probe canaloplasty with a specially prepared monofilament 4.0 polypropylene suture combined with suprachoroidal drainage (ScD) and collagen sheet implantation for non-penetrating glaucoma surgery. METHODS: Prospective study with a twelve months follow-up. A standard 4/0 polypropylene suture (ProleneTM by Ethicon; thickness: approximately 250 m) is cut and shaped with an ophthalmic knife (MANI® Crescent Knife, Mani Inc 8-3 Kiyohara Industrial Park, Utsunomiya, Tochigi 321-3231, Japan) to create a blunt end without sharp or compressed edges...
April 29, 2024: International Ophthalmology
https://read.qxmd.com/read/38683199/biphenyl-tetracarboxylic-acid-based-metal-organic-frameworks-a-case-of-topology-dependent-thermal-expansion
#10
JOURNAL ARTICLE
Zhanning Liu, Chengyong Xing, Shaowen Wu, Min Ma, Jian Tian
The large inherent flexibility and highly modular nature of metal-organic frameworks (MOFs) make them ideal candidates for the study of negative thermal expansion (NTE). Among diverse organic ligands, the biphenyl unit, which can unrestrictedly rotate along its C-C single bond, can largely enhance the structural flexibility. Herein, we explored the thermal expansion behaviors of four indium biphenyl tetracarboxylates (BPTCs). Owing to the different dihedral angles of BPTC ligands and coordination mode of In3+ , they show distinct topologies: InOF-1 ( nti ), InOF-2 ( unc ), InOF-12 ( pts ) and InOF-13 ( nou )...
April 29, 2024: Materials Horizons
https://read.qxmd.com/read/38682989/dicke-state-generation-and-extreme-spin-squeezing-via-rapid-adiabatic-passage
#11
JOURNAL ARTICLE
Sebastian C Carrasco, Michael H Goerz, Svetlana A Malinovskaya, Vladan Vuletić, Wolfgang P Schleich, Vladimir S Malinovsky
Considering the unique energy level structure of the one-axis twisting Hamiltonian in combination with standard rotations, we propose the implementation of a rapid adiabatic passage scheme on the Dicke state basis. The method permits to drive Dicke states of the many-atom system into entangled states with maximum quantum Fisher information. The designed states allow us to overcome the classical limit of phase sensitivity in quantum metrology and sensing. We show how to generate superpositions of Dicke states, which maximize metrological gain for a Ramsey interferometric measurement...
April 12, 2024: Physical Review Letters
https://read.qxmd.com/read/38682750/epstein-barr-virus-associated-post-transplant-lymphoproliferative-disorders-in-pediatric-transplantation-a-prospective-multicenter-study-in-the-united-states
#12
MULTICENTER STUDY
Tetsuya Tajima, Olivia M Martinez, Daniel Bernstein, Scott D Boyd, Dita Gratzinger, Grant Lum, Kazunari Sasaki, Brent Tan, Clare J Twist, Kenneth Weinberg, Brian Armstrong, Dev M Desai, George V Mazariegos, Clifford Chin, Thomas M Fishbein, Akin Tekin, Robert S Venick, Sheri M Krams, Carlos O Esquivel
BACKGROUND: Epstein-Barr virus (EBV)-associated post-transplant lymphoproliferative disorders (PTLD) is the most common malignancy in children after transplant; however, difficulties for early detection may worsen the prognosis. METHODS: The prospective, multicenter, study enrolled 944 children (≤21 years of age). Of these, 872 received liver, heart, kidney, intestinal, or multivisceral transplants in seven US centers between 2014 and 2019 (NCT02182986)...
June 2024: Pediatric Transplantation
https://read.qxmd.com/read/38682195/cd146-promotes-emt-mediated-migration-and-invasion-of-nsclc-via-pi3k-akt-signaling-pathway
#13
JOURNAL ARTICLE
Nan Wei, Xuan Wu, Yi Yu, Huanhuan Zhou, Kai Cui, Xingru Zhao, Xiaoju Zhang
BACKGROUND: Recurrence and metastasis are the main causes of non-small cell lung cancer (NSCLC)-related death. CD146 has been identified as a potential risk factor for poor prognosis, closely related to the distant metastasis and drug resistance in various cancers. However, the clinical significance of CD146 in NSCLC requires further investigation. MATERIALS AND METHODS: This study explored the correlation between CD146 expression and clinical variables using tumor tissue samples collected from our hospital...
April 8, 2024: Frontiers in Bioscience (Landmark Edition)
https://read.qxmd.com/read/38681927/simultaneous-acl-and-patellofemoral-instability-surgical-management-and-outcomes
#14
Raj Kumar, Bushu Harna, Shivali Arya
INTRODUCTION: The study discussed three patients who experienced both anterior cruciate ligament (ACL) injury and patellofemoral instability. This combination of injuries is rare and has a scarcity of published /literature. The study described the mechanism of injury, diagnostic modalities, and the decision-making process for surgical intervention. It emphasizes the importance of a comprehensive clinical evaluation and discusses surgical techniques for combined ACL and medial patellofemoral ligament (MPFL) reconstruction...
April 2024: Journal of Orthopaedic Case Reports
https://read.qxmd.com/read/38680114/the-spatiotemporal-richness-of-hummingbird-wing-deformations
#15
JOURNAL ARTICLE
Dimitri A Skandalis, Vikram B Baliga, Benjamin Goller, Douglas A Altshuler
Animals exhibit an abundant diversity of forms, and this diversity is even more evident when considering animals that can change shape on demand. The evolution of flexibility contributes to aspects of performance from propulsive efficiency to environmental navigation. It is, however, challenging to quantify and compare body parts that, by their nature, dynamically vary in shape over many time scales. Commonly, body configurations are tracked by labelled markers and quantified parametrically through conventional measures of size and shape (descriptor approach) or non-parametrically through data-driven analyses that broadly capture spatiotemporal deformation patterns (shape variable approach)...
April 29, 2024: Journal of Experimental Biology
https://read.qxmd.com/read/38677842/a-highly-sensitive-ratiometric-fluorescent-probe-for-detecting-hso-3-so-3-2-and-viscosity-change-based-on-fret-tict-mechanism
#16
JOURNAL ARTICLE
Feng-Ting Liu, Shu-Mei Zhai, Dong-Fang Gao, Shu-Hao Yang, Bao-Xiang Zhao, Zhao-Min Lin
BACKGROUND: Sulfur dioxide (SO2 ) is a significant gas signaling molecule in organisms, and viscosity is a crucial parameter of the cellular microenvironment. They are both involved in regulating many physiological processes in the human body. However, abnormalities in SO2 and viscosity levels are associated with various diseases, such as cardiovascular disease, lung cancer, respiratory diseases, neurological disorders, diabetes and Alzheimer's disease. Hence, it is essential to explore novel and efficient fluorescent probes for simultaneously monitoring SO2 and viscosity in organisms...
May 29, 2024: Analytica Chimica Acta
https://read.qxmd.com/read/38677622/clinical-anatomy-of-the-human-achilles-subtendons-twist-meta-analysis
#17
JOURNAL ARTICLE
Dominik P Łazarz, Alicia Del Carmen Yika, Jakub R Pękala, Jerzy A Walocha, Przemysław A Pękala
PURPOSE: This study aimed to provide a comprehensive and current overview of the anatomy of the Achilles tendon (AT) twisted structure, as there is a discrepancy in the literature regarding its rotating morphology. METHODS: An extensive literature search was conducted across multiple databases to identify all studies that reported relevant data on the AT torsion, with no date or language restrictions applied. Data was extracted and assessed for this meta-analysis following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines...
April 25, 2024: Annals of Anatomy
https://read.qxmd.com/read/38677295/isolated-proximal-tibiofibular-injuries-in-athletic-patients-a-critical-analysis-review
#18
JOURNAL ARTICLE
Derrick M Knapik, Varun Gopinatth, Garrett R Jackson, Robert F LaPrade, Jorge Chahla, Robert H Brophy, Matthew J Matava, Matthew V Smith
While infrequently reported, isolated injuries to the proximal tibiofibular (TF) joint primarily occur in young, athletic patients participating in sporting activities requiring explosive, high impact movements, increasing the risk for potential twisting injuries, especially across a hyperflexed knee. The proximal TF joint is stabilized by bony, muscular and ligamentous structures, including both the anterior and posterior proximal tibiofibular complexes, with the anterior complex providing more robust stability...
April 27, 2024: Journal of Knee Surgery
https://read.qxmd.com/read/38676536/microstructure-based-modeling-of-primary-cilia-mechanics
#19
JOURNAL ARTICLE
Nima Mostafazadeh, Andrew Resnick, Y-N Young, Zhangli Peng
A primary cilium, made of nine microtubule doublets enclosed in a cilium membrane, is a mechanosensing organelle that bends under an external mechanical load and sends an intracellular signal through transmembrane proteins activated by cilium bending. The nine microtubule doublets are the main load-bearing structural component, while the transmembrane proteins on the cilium membrane are the main sensing component. No distinction was made between these two components in all existing models, where the stress calculated from the structural component (nine microtubule doublets) was used to explain the sensing location, which may be totally misleading...
April 27, 2024: Cytoskeleton
https://read.qxmd.com/read/38673312/investigating-the-risk-of-patient-manual-handling-using-the-movement-and-assistance-of-hospital-patients-method-among-hospital-nurses-in-botswana
#20
JOURNAL ARTICLE
Kagiso Kgakge, Paul Kiprono Chelule, Morris Kahere, Themba Geoffrey Ginindza
BACKGROUND: Evidence on the prevalence of lower back pain (LBP) among nurses is widespread in the literature, with several risk factors being reported. These include manual handling of patients, repetitive bending and twisting movements, and long working hours. It is reported that LBP has negative health outcomes and causes poor work performance among healthcare workers (HCWs). The magnitude of ergonomic risks associated with these healthcare activities has not been adequately investigated in Botswana...
March 26, 2024: International Journal of Environmental Research and Public Health
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