bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Relationship Between Electrocardiographic P Wave Parameters and Left Atrial Volume and Volume Indices in Patients with Hypertension
Authors: Artaç İnanç , Balcı Bahattin , Sevimli Serdar , Karakurt Ahmet , Rencüzoğulları İbrahim , Çağdaş Metin , Karabağ Yavuz , İliş Doğan 
Published: August 2022

Introduction: This study was designed to evaluate the relationship between left atrial volume index, which is an important indicator of left ventricular diastolic dysfunction, and electrocardiographic parameters such as P wave duration, P wave dispersion (PWDISP), P wave terminal force (PWTF), and P wave peak time (PWPT) in hypertensive patients.
Patients and Methods: A total of 58 patients with a diagnosis of hypertension between June 2017 and April 2018 were included in this retrospective study. Age-sex matched 58 healthy subjects constituted the control group. The patients without diastolic dysfunction and stage I diastolic dysfunction were included in the normal left atrial pressure (NLAP) group, while stage II and stage III diastolic dysfunction patients constituted the high left atrial pressure (HLAP) group.
Results: The PWDmax, PWDISP, and PWPT which are calculated from the lead DII (PWPTDII) were found to be longer in the group of hypertensive patients (p< 0.05, for all). Electrocardiographic parameters of PWDmax, PWDISP, PWTF, PWPTDII, and PWPTVI were found to be longer in patients with HLAP. Both PWPTVI (p= 0.008 r= 0.395) and PWPTDII (p< 0.001 r= 0.456) were significantly correlated with left atrial volume index.
Conclusion: In this study, the relationship between PWPT and diastolic dysfunction was revealed for the first time in the literature. In addition, the PWPT was found to be increased in patients with increased left atrial pressure (LAP). Our findings deserve attention because electrocardiography is an inexpensive and easily accessible diagnostic method that can be used to detect diastolic dysfunction in hypertensive patients.
The Effect of Vasodilator Drugs on Intima Damage in Preparation of the Saphenous Vein Graft
Authors: Pekedis Mehmet Alaaddin 
Published: August 2022

Introduction: The most important issue in the success of coronary bypass surgery is the quality of the grafts used. In this study, the effect of vasodilator drugs for intimal damage on the harvested saphenous veins of coronary bypass patients was investigated.
Patients and Methods: A total of 10 patients who underwent coronary bypass surgery, had 2-cm long segments of saphenous veins harvested and divided into four study groups. Isotonic solutions in Group I (control group) and Group II, verapamil in Group III, and nitroglycerin in Group IV were applied to the saphenous veins at equal times, in the control group under 20 mmHg and in the other groups 100 mmHg pressure. Upon the completion of the preparation, saphenous vein grafts were studied with light and electron microscopy. Endothelial cell loss and intimal and medial edema were considered in evaluations. Scoring was done from 0 to 3. A median score was assessed for each group.
Results: There was a statistically significant difference between the control and saline groups in terms of endothelial and media damage (0.7 ± 0.48, 2.8 ± 0.42) (p< 0.001), while there was no statistically significant difference between the control group and the verapamil and nitroglycerin groups (0.7 ± 0.48, 1.4 ± 0.54) (0.7 ± 0.48, 1.2 ± 0.44) (p> 0.05). Likewise, no statistically significant difference was found between verapamil and nitroglycerin (1.4 ± 0.54, 1.2 ± 0.44) (p> 0.05). It was determined that the verapamil and nitroglycerin groups had the closest score to the control group, the endothelial and medial damage was minimal in the verapamil and nitroglycerin group, like the control group, and a large amount of endothelial and media damage was observed in the saline group.
Conclusion: The use of vasodilators (verapamil or nitroglycerin) in the preparation of the saphenous vein graft increases the early and late success of vein grafts by protecting the tunica intima and media in the graft, preventing the formation of thrombus in the early period and the development of branchendothelial fibromuscular hyperplasia and atherosclerosis in the late period.
Late Correction of Transposition of the Great Arteries
Authors: Tan Recep Berra Zümrüt , Tongut Aybala , Hatemi Ali Can , Tunçer Eylem , Yılmaz Abdullah Arif , Ceyran Hakan 
Published: August 2022

Introduction: Surgical correction of transposition of the great arteries (TGA) is usually performed in the first week of life. There is no consensus on surgical intervention for patients with a late diagnosis. Our study was designed to evaluate the early results of patients who underwent late-term correction based on surgical techniques.
Patients and Methods: Our study included patients older than a month, who were operated on due to TGA between 2014 and 2019. Data on the postoperative hospital mortality and morbidity of these patients were examined.
Results: The study enrolled 11 patients. Arterial switch operation (ASO) was performed in 36.3% (n= 4) of the patients, while an atrial switch operation was performed in 63.7%. After left ventricular (LV) training, ASO was performed in 25% (n= 1) of the patients. Extracorporeal membrane oxygenation (ECMO) support requirement was present in 36.4% (n= 4) of the patients due to postoperative low cardiac output. The mortality rate was 27.3% (n= 3). Of these deaths, 33.3% occurred among patients who had undergone Senning operations, while 66.7% occurred among those who underwent ASO (n= 1). While 66.7% (n= 2) of the mortality was due to low cardiac output, 33.4% was due to sepsis (n= 1).
Conclusion: There is still no absolute consensus on the timing of surgical intervention in cases of TGA. ASO can be performed in cases with an increased need for ECMO and acceptable mortality among patients over one month of age. For patients with LV regression, two-stage ASO and atrial switch operations are alternative options.
Subclinical Inflammation As an Independent Risk Factor for All-Cause Mortality in Patients with Left Main Coronary Artery Disease
Authors: Memiç Sancar Kadriye , Kahraman Serkan , Tükenmez Karakurt Seda , Tekin Meltem , Çörekcioğlu Büşra , Ateşli Alkım , Satılmışoğlu Hulusi , Demirci Gökhan , Yıldız Mustafa 
Published: August 2022

Introduction: This study aimed to investigate pre-procedural (Neutrophil to Lymphocyte Ratio) (NLR) in patients with (Left Main Coronary Artery) (LMCA) disease and to identify a relevant NLR value related to mortality after percutaneous intervention in unprotected LMCA disease.
Patients and Methods: Seventy-one patients diagnosed with unprotected LMCA disease were divided into two groups according to their mortality rates: survivors (n= 56, 78%) and non-survivors (n= 15, 22%). The mean follow-up duration was 26.0 ± 24.8 months, and all-cause mortality was considered as an endpoint.
Results: The non-survivor group had higher NLR values [3.23 (2.31-4.01) vs. 5.82 (2.92-14.99), p= 0.026] compared to the survivor-group. ROC analysis revealed an NLR cut-off value of 5.24 for predicting all-cause mortality. During follow-up, the group with high NLR values was associated with a significantly higher rate of all-cause mortality rate [6 (10.5%) vs. 9 (64.3%), p< 0.001] compared to the low NLR group. In multivariate analysis, the NLR (OR= 1.695; 95% CI= 1.124-2.556; p= 0.012) was found to be independent predictors of mortality.
Conclusion: NLR is the independent predictor of all-cause mortality in unprotected LMCA disease. As far as we know, this study is the first study investigating the prognostic value of NLR in patients with unprotected LMCA disease stenting.
A Single-Center Retrospective Study of Patients with ALCAPA
Authors: Tan Recep Berra Zümrüt , Tongut Aybala , Hatemi Ali Can , Cine Nihat , Tunçer Eylem , Ceyran Hakan 
Published: August 2022

Introduction: Anomalous left coronary artery from the pulmonary artery (ALCAPA) is a rare but fatal disease. Untreated cases have a first-year mortality rate of 90%. We aimed to evaluate the early outcomes of patients who were operated on for ALCAPA in our clinic.
Patients and Methods: We retrospectively reviewed the cases of seven patients who were operated on in our clinic for ALCAPA between 2013 and 2019. Preoperative, early postoperative, and first year echocardiography results were compared.
Results: Five patients (71.4%) underwent reimplantation and two patients (28.6%) underwent Takeuchi repair. The median age was 25 months and 71.4% (n= 5) of the patients were aged ≤1 year. In preoperative echocardiograms, mean ejection fraction (EF) was 32.1 ± 4.9% and mean preoperative MR grade was 2.1 ± 0.7. Two patients with severe MR (grade 3) underwent simultaneous mitral annuloplasty. The mean EF % significantly increased (p= 0.023) and the mean MR grade significantly decreased (p= 0.039, p< 0.05) in the early postoperative period. This finding was not statistically associated with surgical technique or age. The mortality rate was 14.3% (n= 1). The patient who died had severe preoperative LV dysfunction and MR, which did not improve after surgical intervention.
Conclusion: Early improvement in LV function and MR grade after ALCAPA repair is crucial for survival regardless of age. Moderate or mild functional MR may spontaneously improve after the surgical correction of LV dysfunction. Simultaneous mitral valve intervention is needed in cases of severe MR and patients aged ≥1 year.
Effective uncertainty quantification for multi-angle polarimetric aerosol remote sensing over ocean
Authors: Gao Meng , Knobelspiesse Kirk , Franz Bryan A. , Zhai Peng-Wang , Sayer Andrew M. , Ibrahim Amir , Cairns Brian , Hasekamp Otto , Hu Yongxiang , Martins Vanderlei , Werdell P. Jeremy , Xu Xiaoguang 
Published: August 2022

Abstract. Multi-angle polarimetric (MAP) measurements can enable detailed characterization of aerosol microphysical and optical properties and improve atmospheric correction in ocean color remote sensing. Advanced retrieval algorithms have been developed to obtain multiple geophysical parameters in the atmosphere–ocean system. Theoretical pixel-wise retrieval uncertainties based on error propagation have been used to quantify retrieval performance and determine the quality of data products. However, standard error propagation techniques in high-dimensional retrievals may not always represent true retrieval errors well due to issues such as local minima and the nonlinear dependence of the forward model on the retrieved parameters near the solution. In this work, we analyze these theoretical uncertainty estimates and validate them using a flexible Monte Carlo approach. The Fast Multi-Angular Polarimetric Ocean coLor (FastMAPOL) retrieval algorithm, based on efficient neural network forward models, is used to conduct the retrievals and uncertainty quantification on both synthetic HARP2 (Hyper-Angular Rainbow Polarimeter 2) and AirHARP (airborne version of HARP2) datasets. In addition, for practical application of the uncertainty evaluation technique in operational data processing, we use the automatic differentiation method to calculate derivatives analytically based on the neural network models. Both the speed and accuracy associated with uncertainty quantification for MAP retrievals are addressed in this study. Pixel-wise retrieval uncertainties are further evaluated for the real AirHARP field campaign data. The uncertainty quantification methods and results can be used to evaluate the quality of data products, as well as guide MAP algorithm development for current and future satellite systems such as NASA’s Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission.
Cloud forcing of surface energy balance from in situ measurements in diverse mountain glacier environments
Authors: Conway Jonathan P. , Abermann Jakob , Andreassen Liss M. , Azam Mohd Farooq , Cullen Nicolas J. , Fitzpatrick Noel , Giesen Rianne H. , Langley Kirsty , MacDonell Shelley , Mölg Thomas , Radić Valentina , Reijmer Carleen H. , Sicart Jean-Emmanuel 
Published: August 2022

Abstract. Clouds are an important component of the climate system,
yet our understanding of how they directly and indirectly affect glacier
melt in different climates is incomplete. Here we analyse high-quality
datasets from 16 mountain glaciers in diverse climates around the globe to
better understand how relationships between clouds and near-surface
meteorology, radiation and surface energy balance vary. The seasonal cycle
of cloud frequency varies markedly between mountain glacier sites. During
the main melt season at each site, an increase in cloud cover is associated
with increased vapour pressure and relative humidity, but relationships to
wind speed are site specific. At colder sites (average near-surface air
temperature in the melt season <0 ∘C), air temperature
generally increases with increasing cloudiness, while for warmer sites
(average near-surface air temperature in the melt season ≫0 ∘C), air temperature decreases with increasing
cloudiness. At all sites, surface melt is more frequent in cloudy compared
to clear-sky conditions. The proportion of melt from temperature-dependent
energy fluxes (incoming longwave radiation, turbulent sensible heat and latent
heat) also universally increases in cloudy conditions. However, cloud cover
does not affect daily total melt in a universal way, with some sites showing
increased melt energy during cloudy conditions and others decreased melt
energy. The complex association of clouds with melt energy is not amenable
to simple relationships due to many interacting physical processes (direct
radiative forcing; surface albedo; and co-variance with temperature, humidity
and wind) but is most closely related to the effect of clouds on net
radiation. These results motivate the use of physics-based surface energy
balance models for representing glacier–climate relationships in regional-
and global-scale assessments of glacier response to climate change.
WHICH SURGICAL TREATMENT IS PREFERABLE IN HUMERAL DIAPHYSEAL FRACTURES? A SYSTEMATIC REVIEW
Authors: SARACCO MICHELA , FULCHIGNONI CAMILLO , FUSCO FABRIZIO , LOGROSCINO GIANDOMENICO 
Published: August 2022

Introduction Humeral diaphyseal fractures are very common. Many treatments have been proposed but the choice of the best one is often complex. Objective The aim of the proposed study is to analyze the data in the literature in order to define the risks, advantages and disadvantages of the alternative surgical treatments (anterograde/retrograde intramedullary nailing, ORIF, MIPO). Methods PubMed / Medline and Google Scholar were searched for prospective randomized or case-control retrospective studies about surgical treatment of humeral diaphyseal fractures with nailing, ORIF and MIPO, according to PRISMA guidelines. The primary outcome considered was the fracture healing time by comparing nailing-ORIF, nailing-MIPO and ORIF-MIPO. Differences in the rate of post-operative complications, patient satisfaction, intra-operative blood loss and surgical time were considered secondary outcomes. Results 506 studies were identified, but only 10 studies were valid for the systematic review. No differences between nailing, ORIF and MIPO were recorded in terms of healing and surgical times. Intra-operative blood loss was significantly higher during ORIF (p 0.024). No differences were found in the restoration of function evaluated using clinical scales. The rate of complications was 27.4% for nailing, 21.2% for ORIF and 13.8% for MIPO. The difference was statistically significant only by comparing nailing with MIPO (p 0.012), probably because anterograde nailing is more often correlated to shoulder impairment. ORIF was at higher risk of infection compared to nailing (p 0.007). Conclusion Humeral diaphyseal fractures require careful pre-operative planning, ensuring reduced healing time, less soft tissue damage and low rate of complications. The lower exposure of the fracture allows for excellent results with reduced bleeding and lower risk of complications.
Unfinished Business: Visuality, Space, and the State in (Post) Socialist Venezuela
Authors: Troconis Irina R. 
Published: August 2022

ABSTRACT
This article proposes (post)socialism as a conceptual lens to read the temporal dislocation and affective currents that define Venezuela’s current political and social reality and its relationship to the twenty-first-century socialism former president Hugo Chávez promised in 2006. It argues that this version of socialism, which claimed to be different from the ones that came before in Latin America and elsewhere, was translated into the country’s urban landscape in a visual display that served to smooth over its contradictions and blind spots and that made Chávez essential to the discussions regarding what shape it could take in Venezuela. The connection between Chávez and socialism lingered after his death, leading to an explosion of visual representations of him that included the reproduction of his signature on the walls of the apartment buildings constructed by the housing program Gran Misión Vivienda Venezuela. The article argues that, by creating the illusion that Chávez remains visible, present, and essential for the operations and conceptualization of the Revolution’s socialist agenda, the signature—and the other visual forms Chávez’s afterlife has publicly taken—reduces socialism to a crisis of imagination that prevents critical debates and the possibility of envisioning new political futures for the nation.
New Cold War Nostalgia in Recent U.S. Cultural Productions: Retro and Irony in the Transnational Postsocialist World
Authors: Popescu Sandu Oana 
Published: August 2022

ABSTRACT
This article examines the intersection of nostalgia, irony, and retro in “new Cold War” story lines that dominate two U.S. cultural productions—the feature film Creed II (2018) and the series Comrade Detective (2017). Both cultural productions anchor themselves in and re-create the Cold War past by addressing multiple audiences in the postsocialist space, Western Europe, and the United States. Creed II and Comrade Detective engage in nostalgia for the 1950s when the U.S. nation became a superpower in the context of late twentieth-century U.S. efforts to maintain that status. Both cultural productions address narratives of American exceptionalism. Creed II develops more regressive forms of nostalgia that update older formulas of U.S. identity for new generations, while maintaining Cold War binary oppositions and the triumphalist narrative of victory over European state socialism. In contrast to Creed II, the Amazon produced series Comrade Detective re-creates a Cold War past in more playful and progressive retro mode, marking an evolution of U.S. new Cold War nostalgia into a more multilayered and transnational phenomenon.
study on aetiopathogenesis and management of rectal prolapse in tertiary care centre in Odisha, India
Authors: Subudhi B Swagat Kumar , Habada Sunil Kumar , Pradhan Swayangprava , Pradhan Susajit Kumar 
Published: August 2022

Introduction: Rectal prolapse refers to a circumferential, full-thickness protrusion of the rectum through the anus and also has been called complete prolapse, or procidentia. Internal prolapse occurs when the rectal wall intussuscepts but does not protrude, and is more accurately described as internal intussusception. In adults, rectal prolapse is far more common among women. The diagnosis is obvious on inspection, except in the case of concealed rectal prolapse. At present, the fixation of the rectum to the sacral hollow is considered to be the most rational operation in the surgical management of complete rectal prolapse. The present study is undertaken at S.C.B.Medical college hospital, Cuttack to evaluate the aetio-pathological factors associated with rectal prolapse and the different surgical methods available to repair them. Methods: A hospital-based Cross-sectional study was done among the patients Presenting .with Rectal Prolapse either attending Surgery Out-Patient Department or admitted to the Department through Emergency Department and giving consent for the study. Results: In the study 91.2% were complete and 8.8% were partial prolapse. The maximum age group showing thus prolapse was from 31-50 years age group, with males having more incidence of prolapse than females. Among the females, multi-porous were having increased incidence of prolapse.
Analysis of demographic characteristics affecting labour curve in low risk pregnant woman in tertiary care hospital in Central India
Authors: Saumya Saumya , Singh Beenu Kushwah , Khatik Neha 
Published: August 2022

Background: Since decades labour curve given by E. Friedman in 1950 is used in obstetrics practices all over the world; but recent studies have highlighted labour progression pattern which deviates from Friedman’s curve. Recently there have been many studies done to focus on progress of labour in contemporary labouring females. Till date no other study has been focused on developing labour curves for Indian origin females. This study is done to evaluate pattern of labour progress in central Indian origin female. Objective: To analyse demographic characteristics affecting spontaneous labour progression in low risk pregnant females of central Indian origin. Material and methods: It was prospective observational study done from August 2017 to July 2018. Low risk term pregnant women with spontaneous onset of labour were included and findings were entered in a pre-structured format. Results: Mean age of study population was 24.43 years with a range of 18 to 35 years. Mean body mass index (BMI) of study population was 21.49 with a range of 18.5 -30 kg/m2. Maximum number of females were nulliparous i.e 79.10%. Mean cervical dilatation at admission was 4 cm. Mean duration of active phase of labour was 3.66 hrs.
Phytochemical estimation and evaluation of antioxidant activity of hydro-alcoholic and ethylacetate extracts of Tribulus terrestris linn. (gokhru) and Solanum nigrum linn (makoi)
Authors: Goel Kirti , Singh Randhir , Saini Vipin , Bansal Seema 
Published: August 2022

Tribulus terrestris L. and Solanum nigrum L. has been used traditionally since ages. To explore the phytoconstituents (qualitatively and quantitatively) and estimate antioxidant activity of hydroalcoholic and ethyl acetate extracts of fruits of Tribulus terrestris L. and Solanum nigrum. Different methods were adopted for phytochemical screening. Evaluation of antioxidant potential was achieved by total anti-oxidant capacity assay, hydrogen peroxide scavenging activity, DPPH radical-scavenging activity, Nitric oxide radical scavenging activity and reducing power assay. The qualitative estimation of fruits of Tribulus terrestris L and of Solanum nigrum L. showed the presence of various phytoconstituents likewise tannins, saponins, flavonoids and terpenoids. Quantitative estimation revealed the presence of flavonoids (5.01%w/w), saponins (0.70%w/w), and terpenoids (0.013%w/w) in fruits of Tribulus terrestris L. whereas presence of flavonoids (10.46%w/w), saponins (11.02%w/w) and terpenoids (0.034%w/w) was found in fruits of Solanum nigrum L. It can be concluded that both the extracts of Tribulus terrestris L and Solanum nigrum L possess significant antioxidant activity.