Publications by authors named "Boudjemaa A"

The aim of the present work is to investigate the photocatalytic degradation of propyl paraben (propyl para-hydroxybenzoate, PrP) using CuO-ZnO-NPs photocatalyst followed by the identification of the oxidation by-products. The CuO-ZnO-NPs material, synthesized using a green chemistry approach, was used as a photocatalyst for the removal of PrP. The nanoparticles were characterized by XRD, XRF, diffuse reflectance spectroscopy, ATG/DTG, FTIR, SEM-EDX, BET and FRX techniques.

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ZnO-CoO material was successfully synthesized by the co-precipitation method and used as a catalyst for the removal of diclofenac sodium (DCF). ZnO-CoO exhibited higher catalytic activity in the catalytic process compared to the photocatalytic processes. Under optimum conditions, the activation of peroxymonosulfate (PMS) by ZnO-CoO achieved approximately 99% removal of DCF, confirming the effective adsorption and activation of PMS.

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Introduction: Pleural procedures are painful interventions. While there exist recommendations aimed at preventing pain induced by local anesthesia, they have never been evaluated with regard to the thoracic wall. The objective of this study was to evaluate the effectiveness of buffered lidocaine local anesthesia in pleural procedures.

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Background: Use of immune checkpoint inhibitors (ICIs) is associated with new response types, such as hyperprogressive disease (HPD), whose definition is still being discussed. Some authors use dynamic indexes to define HPD. However, since the Checkmate-743 study, ICIs have been a first-line therapy for pleural mesothelioma (PM), thereby making use of dynamic indexes less appropriate.

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Article Synopsis
  • Patients with severe eosinophilic asthma often switch from one biologic treatment to another when their current medication isn't effective, but it's unclear whether switching to a different class (anti-IL-4R) or another drug in the same class (anti-IL-5/5R) is better.
  • In a study using data from a large asthma cohort, researchers compared the outcomes of patients who switched to either anti-IL-4R mAb or a different anti-IL-5/5R after not responding to their initial treatment.
  • Results showed no significant difference in asthma control improvement at six months, but the anti-IL-4R group had a more notable reduction in corticosteroid use, suggesting it might
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Article Synopsis
  • - The French RAMSES study compared severe asthma patients managed in tertiary referral centres (TRCs) versus secondary care centres (SCCs) to understand differences in patient characteristics and care practices.
  • - A total of 2046 patients were included: 73.4% from TRCs and 26.6% from SCCs; key findings showed that TRC patients had more comorbidities but lower blood eosinophil counts and benefited more from educational programs and in-depth investigations.
  • - The study concluded that asthma care trajectories and patient phenotypes varied significantly between TRCs and SCCs, emphasizing the need for standardized approaches to managing severe asthma.
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This research work describes the degradation of quinoline yellow (QY) in aqueous solutions by the heterogeneous Fenton and photo-Fenton processes in the presence of CuO/FeO photocatalyst. CuO/FeO derived from LDH structure was synthesized by the co-precipitation method. The physiochemical characteristics of CuO/FeO were described by XRD, TEM/SEM, BET surface area, and FTIR techniques.

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Introduction: Patients with thoracic malignancies are at increased risk for mortality from coronavirus disease 2019 (COVID-19), and a large number of intertwined prognostic variables have been identified so far.

Methods: Capitalizing data from the Thoracic Cancers International COVID-19 Collaboration (TERAVOLT) registry, a global study created with the aim of describing the impact of COVID-19 in patients with thoracic malignancies, we used a clustering approach, a fast-backward step-down selection procedure, and a tree-based model to screen and optimize a broad panel of demographics and clinical COVID-19 and cancer characteristics.

Results: As of April 15, 2021, a total of 1491 consecutive eligible patients from 18 countries were included in the analysis.

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We study the non-equilibrium evolution of binary Bose-Einstein condensates in the presence of a weak random potential with Gaussian correlation function using the time-dependent perturbation theory. We apply this theory to construct a closed set of equations that highlight the role of the spectacular interplay between the disorder and the interspecies interactions in the time evolution of the density induced by disorder in each component. It is found that this latter increases with time favoring localization of both species.

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We study the equilibrium properties of self-bound droplets in two-dimensional Bose mixtures employing the time-dependent Hartree-Fock-Bogoliubov theory. This theory allows one to understand both the many-body and temperature effects beyond the Lee-Huang-Yang description. We calculate higher-order corrections to the excitations, the sound velocity, and the energy of the droplet.

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We consider impurity atoms embedded in a two-component Bose-Einstein condensate in a quasi-one dimensional regime. We study the effects of repulsive coupling between the impurities and Bose species on the equilibrium of the system for both miscible and immiscible mixtures by numerically solving the underlying coupled Gross-Pitaevskii equations. Our results reveal that the presence of impurities may lead to a miscible-immiscible phase transition due to the interaction of the impurities and the two condensates.

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We derive an exact solution to the local nonlinear Schrödinger equation (NLSE) using the Darboux transformation method. The solution describes the profile and dynamics of a two-soliton molecule. Using an algebraically decaying seed solution, we obtain a two-soliton solution with diverging peaks, which we denote as singular soliton molecule.

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This study provides the preparation and profound characterization of an eco-friendly photobiocomposite beads named, titanium (IV) oxide/calcium alginate (TiO/CaAlg), and the examination of their effectiveness for Basic Blue 41 (BB 41) adsorption/ photocatalytic degradation using sunlight like a renewable energy source. Chemical and physical characteristics of pure TiO, pure CaAlg and TiO/CaAlg beads were investigated using; X-ray diffraction (XRD), UV-visible diffuse reflectance spectra (UV-Vis DRS), scanning electron microscopy (SEM), attenuated total reflection spectroscopy (ATR), X-Ray photoelectron spectrometer (XPS), thermogravimetry (TGA) derivative thermogravimetry (DTG) and differential scanning calorimetry (DSC) analysis. Kinetic and isotherm models were evaluated using the non-linear model fitting analysis method.

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This study evaluates the efficiency of sulfate radicals used in advanced oxidation process in water treatment. The targeted pollutant is an antibiotic, sulfaquinoxaline (SQ-Na) sodium, widely used in the veterinary field. The results show a degradation of SQ-Na until 90% after 300 min of irradiation at optimal sodium persulfate (SPS) concentration (200 mg/L).

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Carbon nanospheres were prepared and functionalized with carboxyl acid groups (CNS-CA), then reacted with 3-aminopropyltriethoxysilane to introduce amino groups onto the surface (CNS-NH₂) by post-synthesis grafting. CNS-NH₂ was acidified in order to convert the amino groups (-NH₂) into ammonium moieties ( View Article and Find Full Text PDF

Introduction: Among patients with non-small-cell lung cancer, coexistence of EGFR mutation and ALK rearrangement is rare. We describe the clinical features of two patients with this double anomaly.

Case Reports: A 62-year-old Caucasian non-smoking woman was diagnosed with cT4N0M0 lung adenocarcinoma.

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Introduction: Pulmonary artery sarcoma is a rare disease with non-specific symptoms. The clinical and radiological presentation can mimic pulmonary embolism with chronic thromboembolic pulmonary hypertension. Management is essentially surgical but the prognosis remains poor.

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Novel nanomaterials based on doped TiO2 nanoparticles with different morphological, textural and band-gap properties have been synthesized using scalable methods. The influence of synthetic parameters such as titanium source (titanium(IV) isopropoxide and titanium(IV) butoxide), doping quantity (0%, 2% or 5% Zn), acidic solution for the hydrolysis reaction (ascorbic acid, nitric acid) and calcination temperatures (500°C and 600°C) was simultaneously investigated. The obtained nanomaterials were characterized by different methods and photocatalytic tests of methylene blue (MB) degradation under UV-light were conducted to determine their activity.

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We calculate the binding energy of soliton molecules of an integrable nonlinear Schro[over ̈]dinger equation with time-dependent harmonic potential and cubic nonlinearity. Through a scaling transformation, an exact formula for the binding energy can be derived from that of the free soliton molecules in a homogeneous background. In the special case of oscillatory time dependence, sharp resonances occur at some integer and fractional multiples of the natural frequency of the molecule.

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One hundred and twenty-five cases of tuberculous osteomyelitis have been observed by the authors since 1968. The site of the lesion and the clinical and radiological findings have been analysed. The importance of accurate diagnosis by bacteriological and histological investigation is emphasized.

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From August 1978 to December 1983, 51 insulin-dependent diabetic patients with end-stage renal disease were selected for treatment by continuous ambulatory peritoneal dialysis. There were 27 male and 24 female patients, with a mean age of 52.3 +/- 13.

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