High-Statistics Measurement of Collins and Sivers Asymmetries for Transversely Polarized Deuterons.

New results are presented on a high-statistics measurement of Collins and Sivers asymmetries of charged hadrons produced in deep inelastic scattering of muons on a transversely polarized ^{6}LiD target. The data were taken in 2022 with the COMPASS spectrometer using the 160 GeV muon beam at CERN, statistically balancing the existing data on transversely polarized proton targets. The first results from about two-thirds of the new data have total uncertainties smaller by up to a factor of three compared to the previous deuteron measurements.

Final COMPASS Results on the Transverse-Spin-Dependent Azimuthal Asymmetries in the Pion-Induced Drell-Yan Process.

The COMPASS Collaboration performed measurements of the Drell-Yan process in 2015 and 2018 using a 190  GeV/c π^{-} beam impinging on a transversely polarized ammonia target. Combining the data of both years, we present final results on the amplitudes of five azimuthal modulations, which correspond to transverse-spin-dependent azimuthal asymmetries (TSAs) in the dimuon production cross section. Three of them probe the nucleon leading-twist Sivers, transversity, and pretzelosity transverse-momentum dependent (TMD) parton distribution functions (PDFs).

Amine adducts of triallylborane as highly reactive allylborating agents for Cu(I)-catalyzed allylation of chiral sulfinylimines.

The implementation of selective catalytic processes with highly active reagents is an attractive strategy that meets the modern principles of sustainable development of chemistry. In the current study, we for the first time describe the method and general principles of Cu(I)-catalyzed allylation of imines with amine adducts of allylic triorganoboranes. Triallylborane is an extremely reactive compound and cannot be used for the catalytic allylation of imines, whereas its amine adducts are ideal substrates for catalysis.

Prognostic Model for Vasopressor Requirement After Retroperitoneal Adrenalectomy for Pheochromocytoma: A Retrospective Study.

Objectives: To evaluate the risk factors for postoperative vasopressor requirement among patients with pheochromocytoma undergoing retroperitoneal adrenalectomy. The primary outcome was postoperative hypotension requiring vasopressor support.

Design: A single-center retrospective observational study.

Bilateral metalloheterocyclic systems based on palladacycle and piperidine-2,4-dione pharmacophores.

The design of molecules with effective anticancer properties constructed from both dually active metal complex and organic fragments is a novel trend in medicinal chemistry. This concept suggests the impact of a drug on several biological targets or the synergistic action of both fragments as a single unit. We propose that the combination of a Pd-metallocomplex fragment and an organic unit can be an interesting model for anticancer drug discovery.

Two-Tiered Resection of Cam Lesions in Hip Femoroacetabular Impingement: Optimizing Femoral Head Sphericity.

Hip arthroscopy is one of the most rapidly growing fields in orthopaedic surgery. One of the most frequent pathologies treated with hip arthroscopy remains femoroacetabular impingement, which is addressed by labral repair and femoral osteoplasty. The most commonly cited reason for failure of arthroscopic treatment of femoroacetabular impingement is under-resection of the cam lesion.

Carbon dioxide embolism during posterior retroperitoneal adrenalectomy.

We report a case of massive carbon dioxide embolism associated with injury to the inferior vena cava, during posterior retroperitoneoscopic adrenalectomy. The presenting clinical features were tachycardia, rapid oxygen desaturation and severe respiratory acidosis, without evidence of bleeding. The patient was resuscitated by increasing the fraction of inspired oxygen, administering intravenous fluid and converting to an open procedure to suture the vein.

Predictors of Perioperative Vasoactive Drug Requirement During Retroperitoneal Adrenalectomy for Pheochromocytoma: A Retrospective Exploratory Study.

The aim of the present study was to test a hypothesis that baseline systemic vascular resistance index (SVRI) assessed by method of transpulmonary thermodilution predicts perioperative requirement for vasoactive drugs. The primary outcomes were: (1) peak vasoactive-inotropic score (VIS) and (2) peak dose of hypotensive drugs at any stage of surgery. The main exposure variable was baseline SVRI.

Pressures Exerted on the Hook of the Hamate in Collegiate Baseball Players: A Comparison of Grips, With Emphasis on Fracture Prevention.

Background: Variations in batting technique may put baseball players at increased risk of hook of the hamate fractures. A better comprehension of the mechanism of such fractures is needed.

Purpose/hypothesis: The purpose of the study was to compare 2 different grip types to quantify the pressures exerted on the hook of the hamate during batting.

Triangle Singularity as the Origin of the a_{1}(1420).

The COMPASS Collaboration experiment recently discovered a new isovector resonancelike signal with axial-vector quantum numbers, the a_{1}(1420), decaying to f_{0}(980)π. With a mass too close to and a width smaller than the axial-vector ground state a_{1}(1260), it was immediately interpreted as a new light exotic meson, similar to the X, Y, Z states in the hidden-charm sector. We show that a resonancelike signal fully matching the experimental data is produced by the decay of the a_{1}(1260) resonance into K^{*}(→Kπ)K[over ¯] and subsequent rescattering through a triangle singularity into the coupled f_{0}(980)π channel.

Variability of glenoid labral tear patterns: a study of 280 sequential surgical cases.

Background: Glenoid labrum tears are a common cause of shoulder pain and instability and tear patterns have historically been ascribed into categorical descriptions such as anterior, posterior, and superior labral tears (SLAP [superior labrum anterior and posterior]) with multiple subtypes. Although often quoted as representing no more than 10% of instabilities, posterior shoulder instability may be more common than previously recognized. The purpose of this study was to review observed labral tear patterns and compare incidence and morphologies to historical descriptions.

Bilateral Femoral Neck Fractures in the Setting of Bilateral Slipped Capital Femoral Epiphysis: A Case Report.

Case: A 16-year-old adolescent boy with autism and vitamin D deficiency sustained a seizure and had bilateral femoral neck fractures and slipped capital femoral epiphysis (SCFEs). He underwent closed reduction and screw stabilization of femoral neck fractures with incorporation of in situ screw fixation of SCFEs. Intraosseous epiphyseal perfusion monitoring was used to confirm the perfusion of the femoral head.

[Prevention of colorectal anastomotic leakage by using of intraoperative fluorescent angiography: prospective trial data].

Aim: To evaluate the effect of intraoperative fluorescent angiography on the incidence of colorectal anastomosis failure.

Material And Methods: Prospective, non-comparative study included 52 patients with rectal or sigmoid cancer who underwent surgery with stapled colorectal anastomosis. Intraoperative fluorescent angiography with indocyanine green was performed to determine colon perfusion.

Risk factors and inflammatory predictors for Anastomotic Leakage following Total Mesorectal Excision with defunctioning stoma.

Background: This study aims to examine the factors involved in anastomotic leak (AL) following low anterior resection and total mesorectal excision (LAR-TME) and to determine the usefulness of early measurement of the inflammatory biomarkers C-Reactive Protein (CRP) and Procalcitonin (PCT).

Methods: One hundred patients undergoing LAR-TME with a proximal diverting stoma were analyzed between 2013 and 2016. Postoperative CRP and PCT levels were measured on the 3rd and the 6th postoperative days.

First Measurement of Transverse-Spin-Dependent Azimuthal Asymmetries in the Drell-Yan Process.

The first measurement of transverse-spin-dependent azimuthal asymmetries in the pion-induced Drell-Yan (DY) process is reported. We use the CERN SPS 190  GeV/c π^{-} beam and a transversely polarized ammonia target. Three azimuthal asymmetries giving access to different transverse-momentum-dependent (TMD) parton distribution functions (PDFs) are extracted using dimuon events with invariant mass between 4.

The problem of dephosphorization using waste recycling.

The article considers optimizing methods for wastewater treatment systems. Nutrients (nitrogen and phosphorus) are discharged from the river basin of the northwest Russia. Disruption of ecological safety and healthy state of water basins takes place when excess amount of nitrogen and phosphorus is discharged from wastewater.

Observation of a New Narrow Axial-Vector Meson a1(1420).

The COMPASS Collaboration at CERN has measured diffractive dissociation of 190  GeV/c pions into the π(-)π(-)π(+) final state using a stationary hydrogen target. A partial-wave analysis (PWA) was performed in bins of 3π mass and four-momentum transfer using the isobar model and the so far largest PWA model consisting of 88 waves. A narrow peak is observed in the f0(980)π channel with spin, parity and C-parity quantum numbers J(PC)=1(++).

Measurement of the charged-pion polarizability.

The COMPASS collaboration at CERN has investigated pion Compton scattering, π(-)γ→π(-)γ, at center-of-mass energy below 3.5 pion masses. The process is embedded in the reaction π(-)Ni→π(-)γNi, which is initiated by 190 GeV pions impinging on a nickel target.

The natural products magnolol and honokiol are positive allosteric modulators of both synaptic and extra-synaptic GABA(A) receptors.

The National Center for Complementary and Alternative Medicine (NCCAM) estimates that nearly 40% of adults in the United States use alternative medicines, often in the form of an herbal supplement. Extracts from the tree bark of magnolia species have been used for centuries in traditional Chinese and Japanese medicines to treat a variety of neurological diseases, including anxiety, depression, and seizures. The active ingredients in the extracts have been identified as the bi-phenolic isomers magnolol and honokiol.

Indication of a deeply bound and compact K- pp state formed in the pp- -> pLambdaK+ reaction at 2.85 GeV.

We have analyzed data of the DISTO experiment on the exclusive pp --> pLambdaK+ reaction at 2.85 GeV to search for a strongly bound compact K- pp(approximately = X) state to be formed in the pp --> K+ + X reaction. The observed spectra of the K+ missing mass and the pLambda invariant-mass with high transverse momenta of p and K+ revealed a broad distinct peak of 26-sigma confidence with a mass M(X)=2267+/-3(stat)+/-5(syst) MeV/c2 and a width Gamma(X)=118+/-8(stat)+/-10(syst) MeV.