bluuebunny/crossref_metadata_2025 huggingface dataset:
Microstructure, Phase Composition, Physical and Mechanical Properties of Titanium Alloy VT23 Hot-Extruded Tube
Authors: Vodolazskiy Fedor V. , Illarionov Anatoliy G. , Shirinkina Natalya A.
Published: August 2021

Macro-, microstructural, fine structure, phase composition, texture and complex of physical and mechanical properties in titanium alloy VT23 (Ti-5.5Al-4.7V-2.5Mo-1.1Cr-0.7Fe, wt. %) tube were studded by the macroanalysis, optical and transmission microscopy, X-ray phase analysis, durometry and microindentation methods. A close relationship between the structural-textural-phase state formed during the extrusion and the obtained level of strength, plastic, durometric properties and the contact modulus of elasticity in a hot-extruded tube has been established.
Collection of Laser Ablation Products by Means of an Electrostatic Field
Authors: Chkalov Ruslan V. , Chkalova Darya G.
Published: August 2021

The work is devoted to the problem of controlled laser micromachining of materials surface layers. The problem of ablation products reverse deposition near the laser processing region is considered. Laser ablation products, in addition to direct interaction with laser radiation, significantly increase lifetime and temperature of laser-induced plasma torch, which leads to decrease in energy entering processing area, as a result of which not removal, but heating of coating material occurs. Ablated particles can be deposited on the processed samples surface, which causes distortions in recorded structure spatial geometry. The possibility of using an electrostatic filtration system is considered as a method for protecting treated surface.
Pulsed Laser Deposition of Thin-Film Coatings in an Electrostatic Field
Authors: Chkalov Ruslan V. , Chkalova Darya G.
Published: August 2021

The work is devoted to the problem of thin metal coatings deposition on dielectric substrates using the method of target material pulsed laser evaporation. The main advantage of laser ablation over other methods of coating deposition is the possibility of using practically any material as a target, while the resulting films are characterized by a high correspondence of the phase and chemical composition to the target material. The possibility of using an electrostatic field to improve the efficiency of coating deposition process is considered. Under the action of an electric field formed between the plates of high-voltage electrodes, the ablation products leave the treatment area and settle on the substrate surface. Examples of coatings deposited under various ablation conditions are shown.
Upcycling of Polystyrene Waste Plastics to High Value Carbon by Thermal Decomposition
Authors: Mensah Kenneth , Mahmoud Hatem , Fujii Manabu , Shokry Hassan
Published: August 2021

Globally, the adverse environmental impact of waste plastics is of increasing concern. Most plastics are naturally non-degradable, thus imposes serious environmental threats, especially, to marine life. Upcycling such waste into valuable contents is an effective approach to managing waste plastics. In this study, graphene is synthesized from waste polystyrene (PS) by thermal decomposition at different temperatures (500, 600, 700, 800, 900 and 1000 °C) for two hours reaction time in a stainless steel autoclave. The synthesized materials are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Energy-disperse X-ray analysis (EDS) and surface area by using Brunauer–Emmett–Teller (BET). The yield of the product materials was investigated and optimized against the temperature. The synthesized graphene is considered a promising material for many applications, especially in environmental applications.
Effect of Using Flue-Gas Desulfurization Gypsum and Water Treatment Sludge on Compressive Strength of Cement Mortar
Authors: Chalermsakulkit Weerawan , Supakata Nuta
Published: August 2021

Ordinary Portland cement (OPC) is a material that is widely used in construction. The production of OPC creates large amounts of carbon dioxide. Mortar is one of the building materials that uses cement as the main ingredient, including the use of natural sand as a fine aggregate. Therefore, to reduce the use of cement and natural materials, flue-gas desulfurization (FGD) gypsum was used instead of OPC, and water treatment sludge (WTS) was used instead of fine sand to create cement mortar. This research used both materials as ingredients in the production of cement mortar and helped to reduce waste in the environment. The objective is to study the suitable ratios of FGD gypsum and WTS in the production of cement mortar. As for the binder, FGD gypsum was used instead of OPC at 0%, 10%, 20%, 30%, and 40%. Instead of fine sand, WTS was used at 0%, 5%, 10%, and 15%. The cement mortar was tested after 7 days for compressive strength. It was found that the cement mortar made with increased ratios of FGD gypsum and WTS decreased in compressive strength.
Laser Surface Polishing of Ti6Al4V Titanium Alloy in Air, Nitrogen and Argon Environments
Authors: Jaritngam Pakin , Tangwarodomnukun Viboon , Dumkum Chaiya
Published: August 2021

This paper presents the laser surface polishing of titanium alloy (Ti6Al4V) by using a nanosecond pulse laser. Air, nitrogen and argon were employed as a shielding gas in this study, where the areal roughness (Sa) of laser-polished surface was measured and compared. The results showed that argon was the suitable assist gas for improving the metal surface without causing the oxidation. The effect of laser pulse repetition rate and scan speed on the surface roughness was also investigated in this study. The use of high repetition rate together with slow scan speed was able to reduce the surface roughness of titanium alloy. The roughness was found to be reduced by 47% when the pulse repetition rate of 500 kHz and scan speed of 50 mm/s were applied.
Comparative Life Cycle Assessment of Conventional Concrete to Ash Concrete
Authors: Ferreira José , Silva Elisabete , Domingos Idalina , Silva Luiza , Brás Isabel
Published: August 2021

In the present work, the environmental impacts of the concrete made with woody fly ash that presented compressive strength like the conventional concrete were evaluated and compared using the Life Cycle Assessment methodology. The impact assessment method used was the “CML-IA baseline” implemented in SimaPro software. The results showed that concrete with fly ash had a lower impact than conventional concrete in all the impact categories under study and may be classified as an eco-material (eco-concrete) considering that the environmental issues that are minimized are waste reduction, reduce of landfill problems and resource saving by the utilization of recycled materials.
Evaluation of apoptotic effect of crocin, cisplatin, and their combination in human oral squamous cell carcinoma cell line HN5
Authors: Bijani Fatima , Zabihi Ebrahim , Bijani Ali , Nouri Hamid Reza , Nafarzadeh Shima , Seyedmajidi Maryam
Published: August 2021

Background:

Squamous cell carcinoma (SCC) is the most common oral malignancy with high rate of mortality. Cisplatin, as the most effective chemotherapy drug, has side effects. Considering the studies on the use of crocin in saffron in the treatment of various malignancies, this study aimed at investigating the effects of crocin and cisplatin and their combination on SCC and fibroblast cell lines.

Materials and Methods:

In this interventional study, HN5 and fibroblast cell lines were treated with different concentrations of crocin (12.5–50 μg/mL) and cisplatin (2, 4, 8, 16, and 32 μg/mL), and the cells were counted after 24, 48, and 72 h by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Data were analyzed with SPSS Version 17, and P < 0.05 was considered the level of significance. In the final stage, flow cytometry after 24 h in terms of the pattern of cell death was done.

Results:

Both drugs had a toxic effect on malignant cells. One point was the high toxic effect of 8 μg/mL cisplatin not only on cancer cells (P < 0.001) but also on fibroblasts. However, combination with 12.5 μg/mL of crocin had the same effect on HN5 cell line, despite the less toxic effect in fibroblasts in comparison with cisplatin alone (P = 0.012). Apoptosis was the pattern of cell death showed by flow cytometry.

Conclusion:

Crocin in high concentrations can have not only significant toxicity in cancer cells but also side effects in healthy tissue. It seems that lower doses of crocin, in combination with cisplatin, besides having anticancer effect, can reduce the toxicity of cisplatin in healthy tissue.
Basic Health Care Provision Fund Project Implementation
Authors: Adewole David Ayobami , Bello Segun , Okunola Olumide Olaolu , Owoaje Eme Theodora
Published: August 2021

Introduction:

Knowledge and skills in quantitative/numerical disciplines are some of the essential skills necessary for sustainable and successful administration and management in financing health care. It is not clear whether the personnel across relevant establishments in the health sector of Nigeria have the requisite capacity to implement and manage a performance-based financing project. This survey assessed the availability of certain technical skills among selected mid-level managers in charge of the implementation of the Basic Health Care Provision Fund Project (BHCPFP).

Materials and Methods:

Data were collected with the aid of a self-administered questionnaire developed from a review of the project document. A total population of mid-level managers from all the respective ministries was studied across the six states in Southwest Nigeria. Data collection was conducted between February and June 2019. Data analysis was done using SPSS version 22. Frequency tables were generated and charts were constructed.

Results:

A total of 234 eligible participants were studied. Those who had formal training in quantitative/numerical-based skills such as accounting-related courses were about one-third, 77 (32.8%) and those who had acquired formal training in insurance-related disciplines were 91 (38.7%). A little above one-third, 66 (28.2%) had a form of on-the-job health insurance training.

Conclusions:

This study showed that mid-level managers had poor quantitative-related skills necessary for administrative and technical roles for implementation of BHCPFP. Mid-level managers should be trained and re-trained on those administrative and technical skills for better implementation of BHCPFP.
Normal peak nasal inspiratory flow rate values in healthy children aged 6 to 11 years in the Netherlands
Authors: van Spronsen E. , Ebbens F.A. , Fokkens W.J.
Published: August 2021

Background: The measurement of peak nasal inspiratory flow (PNIF) is a simple, quick, easy to perform and cheap tool for determining the extent of nasal airway patency. However, normative data are rare and not available for Dutch children aged 6 to 11 years. Methods: Repeated PNIF measurements were obtained from 212 Dutch children of primary school age. Of these 212 children, 166 fulfilled the inclusion criteria of our study. The influence of age, gender, ethnicity, weight and height on PNIF was studied. Results: Age is the only parameter of influence on PNIF. All other parameters do not influence PNIF. Normative data are presented. Conclusion: PNIF measurements are possible in children aged six years and older. Age does influence PNIF, but gender, weight, height and ethnicity do not.
Surgical closure of nasal septal perforation. Early and long term observations
Authors: Dosen L.K. , Haye R.
Published: August 2021

Background: Results of surgical treatment of nasal septal perforation are usually evaluated using closure of the perforation as criterion of success. Patients, however, may still have symptoms. Aim: To assess the long-term results of surgical treatment of nasal septal perforation with bilateral, posterior based mucoperichondrial septal flaps using a four-point symptom score to ultimately improve treatment and selection criteria. Methodology: Patients were seen 6 months postoperatively. Questionnaires were sent to 116 surviving patients in 2008-2009. The response was 104. Patients reporting moderate or severe symptoms were seen as outpatients. Results: Between 1987 and 2004, 126 patients were surgically treated using posterior based bilateral mucoperichondrial septal flaps. Sixteen patients had a reperforation during the first 3 months, and another 3 several years later. There was no correlation between early outcome and diagnosis, preoperative size of the perforation, gender or severity of preoperative crusting. There was an increased rate of reperforation with increasing age. Complications seen at the 6 months` follow-up of patients with closed perforations were lachrymal duct stenosis, partial vestibular stenosis, hypoesthesia, crusting and septal deviation, most of which were treatable. Long-term observation mean 10 years) of the same patients showed the following moderate or severe symptoms: crusting, obstruction and bleeding, mainly in men. Obstruction was often due to various forms of perennial rhinitis, sometimes to crusting and more rarely to septal deviation. Crusting was the only independent symptom. There was no correlation between crusting and diagnosis, preoperative size of the perforation, age or severity of preoperative crusting. Conclusions: Results of the surgical technique using posterior based bilateral mucoperichondrial septal flaps for treatment of nasal septal perforations were good, but depend on surgical expertise and age of the patient. Long-term results from other studies will be a guide to choose the proper surgical procedure to minimize the number of late symptoms. Prosthetic treatment cans be an alternative. Patients with return of symptoms should seek further advice.
Cultural adaptation of an olfactory test: the odour in bottle test. [corrected]
Authors: San Turhan , Bayar Muluk Nuray , Saylisoy Suzan , Acar Mustafa , Cingi Cemal , Gul Aylin , Akdag Mehmet , Emre Ozkurt Fazil , Yilmaz Beyhan , Sengul Engin , Bakir Salih , Topcu Ismail
Published: August 2021

Objectives: To compare the size of the nasal septal body (SB) and inferior turbinate (IT) of subjects grouped by sex and age. Method: We measured SB and IT areas (in cm2) bilaterally in computed tomography (CT) sections of 150 paranasal sinuses from 72 males and 78 females. Results: The right and left SB areas were smaller in females than in males. In the ≤ 25-year-old group, the right IT (RIT) was significantly smaller in females than in males. In the 26-35 and 46-45 age groups, the right SB (RSB) was significantly smaller in females than in males. Conclusion: The nasal SB may play a role in nasal physiology similar to a turbinate and help support optimal airflow. The vascular and glandular structures of the SB should be investigated in detail, and minimal invasive procedures should be performed in nasal surgery to avoid damaging essential structures.
Frontal sinus mucocoeles: new algorithm for surgical management
Authors: Sama A. , McClelland L. , Constable J.
Published: August 2021

Background: Frontal sinus mucocoeles require a structured approach to their surgical management. We share our experience of a novel method of positional classification for frontal mucocoele and corresponding surgical algorithm. Methods: A retrospective case-note review examined all frontal sinus surgery for mucocoele, spanning three years (2008-2010). Patients had pre-operative nasendoscopy, multi-planar CT and MRI when indicated. Several important variables (position, drainage dimensions, fronto-ethmoidal cells and degree of neo-osteogenesis) were noted. A systematic algorithm was used for surgical drainage based on these characteristics. The three year outcomes using this approach are presented. Results: Thirty-six patients were identified with a total of 43 frontal mucocoeles. Using our classification, 30 mucocoeles were medial; seven were intermediate; six were lateral. Thirty-four patients underwent a primary endoscopic procedure; six required a combined primary osteoplastic-flap (OPF) and endoscopic approach. Six patients required revision surgery for polypoidal change or neo-ostium stenosis. All patients were eventually rendered asymptomatic. Conclusion: Implementation of our positional classification and surgical algorithm was successful with a revision rate of 19%. Presence of frontal sinus wall dehiscence and extra-sinus mucocoele extension are invalid indicators for external approach. We feel our classification and treatment algorithm, with its associated indicators for surgical escalation (i.e. limited dimensions of frontal ostium, presence of Type III / IV front-ethmoidal cells etc), are applicable for future management of frontal mucocoeles.
Characterisation of patients with endoscopy-negative, computer tomography-negative midfacial segment pain using the sino-nasal outcome test
Authors: Leong S.C. , Tsang H.K. , Wilkie M.D. , Banhegyi G.
Published: August 2021

Background: The purpose of this study was to qualitatively characterise patients with midfacial segment pain (MSP) using the Sino-Nasal Outcome Test (SNOT). The data will provide a detailed overview of the physical and psychological impact on patients'well-being, and how it compares with the normal, healthy population. Methods: Suitable patients were prospectively identified from the Multi-disciplinary Facial Pain Clinic at the Royal Liverpool University Hospital, based on the diagnostic criteria for MSP. The pre-treatment SNOT-22 of these patients were also compared to patients with chronic rhinosinusitis and normal healthy volunteers. Results: Twenty-nine consecutive patients with a diagnosis of MSP were identified, and compared with 30 CRS patients and 34 healthy volunteers. The average SNOT-22 scores of MSP and CRS patients were higher than normal healthy volunteers. Patients with CRS had the highest rhinological subscale SNOT scores compared to normal healthy volunteers and MSP. Conversely, the reported ear and facial symptoms of MSP patients were most unfavourable. A similar trend was observed in reported sleep function where MSP patients recorded higher subscale scores than the other two cohorts. The subscale mean score for psychological function of MSP patients was not significant when compared to the mean score of patients diagnosed with CRS. Conclusion: MSP has an adverse impact on both physical and psychological well-being. The subtle differences in the SNOT subscores between MSP and CRS have provided greater insight into the character and disease impact of MSP. We propose that the SNOT may be suitably utilised in MSP to document disease severity and measure response to treatment.
Extraocular muscle injury during endoscopic sinus surgery: a series of 10 cases at a single center
Authors: Sohn J.H. , Hong S.D. , Kim J.H. , Dhong H.-J. , Chung S.-K. , Kim H.Y. , Oh S.Y.
Published: August 2021

Background: Extraocular muscle (EOM) injury is a rare but serious complication of endoscopic sinus surgery (ESS). The aim of this study is to describe the clinical characteristics and course of EOM injury occurring during ESS. Design: Retrospective case series. Methods: Medical records and CT images of patients who suffered from EOM injury after ESS between 2006 and 2012 were retrospectively reviewed. Patient demographics, endoscopic anatomy, type of surgery (primary or revision), predisposing risk factors, site and extent of injury on CT imaging, and associated complications were evaluated. In addition, data regarding ophthalmologic management and clinical outcomes were collected. Results: Ten patients with EOM injuries after ESS were included in this study. One patient was undergoing revision ESS. All patients sustained medial rectus muscle injury and one patient suffered concurrent ipsilateral inferior rectus muscle injury. A microdebrider was used in nine cases. Right-sided injury (90% of patients) was more prevalent than left-sided injury, and 70% of injured medial rectus muscles were completely transected. After subsequent strabismus surgery, 8/9 patients regained binocular single vision in primary gaze despite residual diplopia in some gaze positions. Conclusion: Although proper ophthalmologic surgery after EOM injury may improve deviation in the primary gaze position, none of the patients regained normal EOM movement. Therefore, prevention of this complication through adequate surgical technique and precautions is important.
Endoscopic modified medial maxillectomy for odontogenic cysts and tumours
Authors: Nakayama Tsugihama , Otori Nobuyoshi , Asaka Daiya , Okushi Tetsushi , Haruna Shin-ichi
Published: August 2021

Background: Odontogenic maxillary cysts and tumours originate from the tooth root and have traditionally been treated through an intraoral approach. Here, we report the efficacy and utility of endoscopic modified medial maxillectomy (EMMM) for the treatment of odontogenic maxillary cysts and a tumour. Methodology: We undertook EMMM under general anaesthesia in six patients: four had radicular cysts, one had a dentigerous cyst, and one had a keratocystic odontogenic tumour. Results: The cysts and tumours were completely excised and the inferior turbinate and nasolacrimal duct were preserved in all patients. There were no peri- or postoperative complications, and no incidences of recurrence. Conclusion: Endoscopic modified medial maxillectomy appears to be an effective and safe technique for treating odontogenic cysts and tumours.
A critical appraisal of analyzing nasal provocation test results in allergen immunotherapy trials
Authors: Graf N. , Dinkel B. , Rose H. , Hothorn L.A. , Gerhard D. , Johansen P. , Kundig T.M. , Klimek L. , Senti G.
Published: August 2021

Background: The statistical analysis of nasal provocation tests is very complex. We compared the conventional analysis with the maximally selected test statistics and the hierarchical ordered logistic model. Methods: We re-analyzed data from a trial with 112 patients suffering from grass pollen allergy. The patients had been randomized to receive either intralymphatic immunotherapy (ILIT) or subcutaneous immunotherapy (SCIT). Results: The conventional analysis indicated that the logarithmized ratio between the pre- and the post-treatment threshold concentration was significantly lower for ILIT than for SCIT. The maximally selected test statistics was used to test different threshold symptom scores that would imply positive clinical symptoms at the given allergen concentration. A threshold score of 3 maximised the difference in improvement between the ILIT and the SCIT groups. The hierarchical ordered logistic model does not take threshold allergen concentrations as the basis for analysis, but the single scores measured at each concentration. This approach simultaneously considers the treatment effect (ILIT versus SCIT), the time effect (pre- versus post-treatment), and the dose effect (different allergen concentrations). The hierarchical ordered logistic model revealed that the clinical improvement was greater after ILIT than after SCIT. Conclusion: As the choice of method can affect the outcome, guidelines for analysis are highly needed.
Endoscopic treatment of inverted papilloma attached in the frontal sinus/recess
Authors: Adriaensen G.F.J.P.M. , van der Hout M.W. , Reinartz S.M. , Georgalas C. , Fokkens W.J.
Published: August 2021

Background: Inverted papilloma (IP) is a benign sinonasal tumour for which endoscopic surgery, with complete removal of the underlying and surrounding mucoperiosteum at the attachment site followed by drilling and/or coagulation of this area, is the treatment of choice. This can be challenging in the frontal sinus. Objectives: To report on the outcome of treatment for IPs involving the frontal sinus. To propose the possible use of topical 5-fluorouracil 5% (5-FU) in the postoperative management of challenging IPs. Methods: This is a retrospective cohort evaluation of patients with IPs attached in the frontal sinus or in the frontal recess and growing into the frontal sinus. Data on primary or revision surgery, uni- or bilaterality, attachment site, surgical procedure, 5-FU usage, recurrence and follow-up are provided. The end points are disease-free follow-up in months and recurrence. Results: Twenty cases, including fifteen revision cases, were retrieved over a period of ten years. All cases were treated endoscopically. Two cases recurred (10%) and the intervention was repeated. In eight cases, 5-FU was applied at the end of surgery. None of these cases recurred. The mean follow-up after the last intervention was 42 months (standard deviation (SD) 22.1). Conclusion: IP involving the frontal sinus is a surgical challenge that can be successfully addressed endoscopically. The topical application of 5-FU could have a place in postoperative treatment when it is difficult to be absolutely sure that all diseased mucoperichondrium or mucoperiosteum at the attachment site(s) has been completely removed.
The microbiome of the maxillary sinus and middle nasal meatus in chronic rhinosinusitis
Authors: Ivanchenko O.A. , Karpishchenko S.A. , Kozlov R.S. , Krechikova O.I. , Otvagin I.V. , Sopko O.N. , Piskunov G.Z. , Lopatin A.S.
Published: August 2021

Aim: This multicenter study was focused on the identification of the microorganisms inhabiting the maxillary sinus and middle nasal meatus in chronic rhinosinusitis. Methodology: 112 middle meatus swabs and 112 maxillary sinus aspirates from 103 patients were available for culture. Results: A total of 244 strains of microorganisms representing more than 50 families were identified in the maxillary sinus and middle nasal meatus (164 and 80, respectively). These included 154 (63.0%) strains of aerobic bacteria from 32 species and 90 (37.0%) strains of anaerobic bacteria from 23 species. Aerobes were more common than anaerobes in both the nasal cavity (78.7% vs. 21.3%) and in the maxillary sinus (55.2% vs. 44.8%). Species of Streptococci (28.8%) and Prevotella (17.8%) were the most common findings in the maxillary sinus aspirates. S. pneumonia, H. influenza, and S. aureus were relatively rare, and found in only 6.7%, 5.4%, and 8.9% of the samples, respectively. Conclusions: The results obtained suggest that common upper airway pathogens do not play a major role in the pathogenesis of chronic rhinosinusitis. The microbiome of inflamed sinonasal mucosa is extremely diverse and involves exotic species of bacteria that, to date, have not been considered as potential inhabitants of the paranasal sinuses.
Transorbital endoscopic assisted management of intraorbital lesions: lessons learned from our first 9 cases
Authors: Dallan I. , Castelnuovo P. , Turri-Zanoni M. , Fiacchini G. , Locatelli D. , Battaglia P. , Sellari-Franceschini S.
Published: August 2021

Background: The management of intraorbital lesions is challenging and it is strongly dependent to their nature, position and biological behaviour. Traditionally, the superior and lateral compartments of the orbit are addressed via lateral orbitotomy or transcranial approaches. Herein we present our preliminary experience in the management of selected supero-lateral intraorbital lesion through an endoscopic-assisted superior-eyelid approach. Methodology: All cases of intraorbital lesion treated in two Italian tertiary care referral centres using a superior eyelid endoscopic-assisted transorbital approach were retrospectively reviewed. Results: Nine patients have been analysed. The aim of surgery was diagnostic in 5 cases and curative in the remaining 4 patients. Significant tissue biopsy was obtained in all the five diagnostic procedures. Complete resection was obtained in 3/4 lesions. No major intra- or postoperative complications have been observed. Mean surgical time was 68 minutes. Mean hospitalization time was 4.4 days. All patients were satisfied about the surgical procedure, as emerged by the post-operative counselling. At present, the mean follow-up time is 18 months, ranging from 11 to 25 months. Conclusions: Our preliminary results are promising with successful functional and cosmetic outcomes and reduced morbidity for the patient. This approach should be considered as an option for selected intraorbital lesions.
Never too early to examine the evidence!
Authors: Lund Valerie J.
Published: August 2021

On a bright day in Philadelphia just over one year ago, a group of surgeons met to discuss the possibility of critically examining the literature published thus far on endoscopic techniques in the management of sinonasal and skull base tumours at the instigation of the European Rhinologic Society. Whilst it has proved relatively easy to provide level 1 evidence for virtually all medical treatments of allergic rhinitis (1), even for many therapies in rhinosinusitis (2), in rhinology in general we have struggled with surgical approaches, not because they don’t work but because they do not readily lend themselves to placeboarms or drug-company sponsorship. The rapid uptake of endoscopic techniques for nose and sinus diseases relied on more than just the undoubted enjoyment of using the instrumentation and whilst we had witnessed the escalation and extension of the techniques to the skull base and sino-orbital interface for benign conditions, there was a natural hesitation and concern about applying these to tumours and especially to malignant disease(3).
Оперативний контроль та управління якістю при розробці залізорудних родовищ
Authors: Azaryan Albert , Азарян Володимир , Трачук Аннаит
Published: August 2021

У навчальному посібнику наведено технічні характеристики сучасних приладів та систем, що використовуються для оперативного контролю при розробці родовищ залізних руд, розглянуто їх структуру, наведено математичні моделі процесів управління якістю рудних вантажопотоків та представлено методику обґрунтування періоду опробування. Навчальний посібник може бути використаний при викладанні курсів «Управління якістю мінеральної сировини» та «Якість залізорудної сировини» для здобувачів другого (магістерського) рівня вищої освіти спеціальності 184 «Гірництво» за освітньо-професійною програмою «Відкриті гірничі роботи» (денна, заочна та перехресна форми навчання), а також для аспірантів та інженерно-технічних робітників гірничо-видобувних та переробних підприємств.
La frontera mercantil del turismo y su dinámica de apropiación y capitalización de la arena como recurso natural [The mercantile frontier of tourism and its dynamics of appropriation and capitalization of sand as a natural resource]
Authors: Escalera Briceño Alejandro , Palafox Muñoz Alejandro
Published: August 2021

En el presente artículo se expone una crítica referente a la extracción de arena que ocurrió en el Banco Punta Norte en la isla Cozumel y La Ollita II en Isla Mujeres en el Caribe mexicano. Estos hechos tienen especial relevancia para evidenciar cómo el capitalismo se apropia de la materia prima (recursos naturales) de forma gratuita o barata. Esta dinámica se produce bajo la frontera mercantil del turismo, la cual consiste en la apropiación y capitalización de la arena para solucionar la erosión de las costas, principalmente de la zona hotelera de Cancún, bastión de la actividad turística en México, presenciando el robo del subsuelo a través de la acumulación por desposesión para el fortalecimiento de la dinámica capitalista. De este modo, el artículo busca contribuir a los estudios críticos del turismo, especialmente en los conflictos socioambientales.
Comentarios sobre el procedimiento para la protección de los derechos fundamentales de la persona: carácter preferente y especialidades en su tramitación
Authors: Valdivieso Mata Carlos María
Published: August 2021

El presente estudio versa sobre el procedimiento especial para la protección de los derechos fundamentales, desde un punto de vista jurisprudencial. Se trata de un procedimiento especial de tramitación preferente donde se simplifican los trámites y se reducen los plazos en relación al procedimiento ordinario seguido ante el orden jurisdiccional contencioso administrativo. Esta especialidad es la que determina una serie de singularidades jurídico-procesales y jurídico materiales, tales como la amplitud de actos administrativos impugnables o la falta de exigencia de agotamiento de la vía administrativa previa, que presentan una característica común: la prevalencia del contenido material de los derechos fundamentales, que se entienden vulnerados y se pretenden restablecer, frente al rigorismo formal estricto y propio de la tramitación contencioso administrativa.
Notas de Jurisprudencia.- Tribunal Superior de Justicia de Andalucía
Authors: Rivero Ysern José Luis
Published: August 2021

SUMARIO:

I. ACTO ADMINISTRATIVO. LICENCIA DE PRIMERA OCUPACIÓN.III. BIENES PÚBLICOS. AGUAS. SANCIONES POR CAPTACIÓN DE AGUAS NO AUTORIZADAS. IV. BIENES PÚBLICOS. DOMINIO PÚBLICO MARÍTIMO TERRESTRE. IX. DERECHO ADMINISTRATIVO ECONÓMICO. FOMENTO. REINTEGRO DE SUBVENCIONES.X. DERECHO ADMINISTRATIVO SANCIONADOR.XII. EXPROPIACION FORZOSA . EXPROPIACIONES URBANÍSTICAS. MÉTODO Y SISTEMA DE VALORACIÓN.XX. RESPONSABILIDAD CAUSA EFICIENTE.
Prevención y lucha contra la violencia deportiva exógena en la legislación autonómica
Authors: Gamero Casado Eduardo
Published: August 2021

La prevención y lucha contra la violencia en el deporte-base es uno de los grandes problemas pendientes en el Derecho del deporte. Se producen graves incidentes cada fin de semana sin que se articulen medidas adecuadas para remediarlo, exceptuando las consecuencias penales. La competencia en la materia es de las Comunidades Autónomas. En este trabajo se analizan las soluciones aportadas por la legislación deportiva autonómica más vanguardista, exponiendo los casos de Cataluña, País Vasco, Andalucía y Aragón.
Apuntes para el análisis comparado de la contratación pública electrónica en Italia y en España
Authors: García Marín Lidia
Published: August 2021

La contratación pública electrónica es una realidad en toda Europa. Los Estados nacionales han ido trasponiendo, en diferente grado y medida, las Directivas de la Unión Europea de 2014 sobre contratación pública. Desde su aprobación, la Unión Europea no ha dejado de incidir en la necesaria trasformación digital de los procedimientos de contratación en aras de una mayor transparencia, eficacia y eficiencia. El panorama normativo de la contratación pública en Italia no puede sino avanzar en esta senda. La presente investigación tiene por objetivo estudiar el régimen de la contratación pública electrónica italiana, al tiempo que se compara con la mantenida por España, destacando los aspectos positivos y mejorables de ambas regulaciones para lograr una implantación de la contratación pública electrónica con carácter definitivo y, cómo no, obligatorio.
Notas de Jurisprudencia.- Tribunal Constitucional
Authors: Escribano López Francisco
Published: August 2021

SUMARIO:

- Sentencia 14/2020, de 28 de enero (BOE de 29de febrero).Recurso de inconstitucionalidad..- Sentencia 13/2020, de 28 de enero de 2020. Recurso de inconstitucionalidad 976-2019.- Sentencia 15/2020, de 28 de enero de 2020. Cuestión interna de inconstitucionalidad 2754-2019).-Sentencia 16/2020, de 28 de enero de 2020. Recurso de inconstitucionalidad 5530-2019- Sentencia 20/2020, de 10 de febrero de 2020. Cuestión de inconstitucionalidad 4268- 2019- Sentencia 25/2020, de 13 de febrero de 2020. Recurso de inconstitucionalidad 5531-2019..
Reseña de otras disposiciones de interés para la Comunidad Autónoma
Authors: Núñez-Lozano María del Carmen
Published: August 2021

Listado de disposiciones por Consejerías de la Junta de Andalucia.
Noticia de Revistas Autonómicas
Authors: Fernández Ramos Severiano
Published: August 2021

SUMARIO:

1.- Unión Europea, Comunidades Autónomas, Derecho autonó-mico, Régimen Local.2.-  Derechos Fundamentales y derechos de ciudadanía.3.-  Fuentes, Potestad Reglamentaria, organización administrativa y  Control Jurisdiccional de las Administraciones Públicas. 4.- Acto, procedimiento administrativo y contratación pública. 5.-  Empleo, bienes, expropiación y responsabilidad.            5.  Modalidades administrativas de Intervención (Policía, Fomento, Servicio público, Actividad Sancionadora, Arbitral y Planificadora).6.- Sectores Administrativos de Intervención. Derecho Administrativo económico. (Aguas, Montes, Minas, Costas, Agricultura y pesca, Urbanismo y Ordenación del territorio, Medio ambiente, Energía, Telecomunicaciones, Patrimonio cultural, etc.).7.-  Varia.
Las cláusulas ambientales en la contratación pública
Authors: Ruiz Olmo Irene
Published: August 2021

Esta obra colectiva presenta los resultados del estudio comparado entre el Derecho portugués y el español de la contratación pública verde, siempre con el referente comunitario común en el horizonte y prestando especial atención a la inclusión de los estándares de protección ambiental en la contratación pública, sobre todo, al hilo de las previsiones contenidas en la Ley 9/2017, de 8 de noviembre, “de Contratos del Sector Público”, por la que se transponen al ordenamiento jurídico español las Directivas del Parlamento Europeo y del Consejo 2014/23/UE y 2014/24/UE, de 26 de febrero de 2014 (en adelante, LCSP). Y, con especial referencia a las “cláusulas ambientales”, es decir, aquellas previsiones contenidas en la LCSP que superan el mero cumplimiento de las obligaciones legales en materia ambiental, persiguiendo el aumento de los estándares de protección ambiental respecto de lo establecido por el ordenamiento jurídico. Presenta relevantes aportaciones doctrinales y constituye un referente en la actualidad jurídica de la materia.
Notas de Jurisprudencia.- Tribunal Constitucional
Authors: Escribano López Francisco
Published: August 2021

SUMARIO:

-Sentencia 65/2020, de 18 de junio de 2020.(BOE de 18 de julio de 2020).- Sentencia 48/2020, de 15 de junio de 2020.(BOE de 18 de julio de 2020).- Sentencia 64/2020, 15 de junio de 2020. BOE de 18 de julio de 2020).- Sentencia 65/2020, de 18 de junio de 2020.(BOE de 18 de julio de 2020).- Sentencia 66/2020, de 29 de junio de 2020.(BOE de 31 de julio de 2020).- Sentencia 67/2020, de 29 de junio de 2020.(BOE de 31 de julio de 2020).- Sentencia 78/2020, de 1 de julio de 2020.(BOE de 31 de julio de 2020).- Sentencia 80/2020, de 15 de julio de 2020.(BOE de15 de agosto 2020).-Sentencia 81/2020, de 15 de julio de 2020.(BOE de15 de agosto 2020).-Sentencia 82/2020, de 15 de julio de 2020.(BOE de15 de agosto 2020)-Sentencia 83/2020, de 15 de julio de 2020..(BOE de15 de agosto 2020).-Sentencia 84/2020, de 15 de julio de 2020 (BOE de15 de agosto 2020)-Sentencia 98/2020, de 22 de julio de 2020 (BOE de15 de agosto 2020)-Sentencia 100/2020, de 22 de julio de 2020.(BOE de15 de agosto 2020).- Sentencia 106/2020, de 21 de septiembre de 2020 (BOE de 2 de noviembre de 2020).- Sentencia 107/2020, de 21 de septiembre de 2020.(BOE de 2 de noviembre de 2020)- Sentencia 108/2020, de 21 de septiembre de 2020 (BOE de 2 de noviembre de 2020)- Sentencia 109/2020, de 21 de septiembre de 2020.(BOE de 2 de noviembre dE 2020
Notas de jurisprudencia.- Tribunal Superior de Justicia de Andalucía
Authors: Rivero Ysern José Luis
Published: August 2021

SUMARIO:

IV. BIENES PÚBLICOS. AGUAS. REGISTRO DE AGUAS PRIVADAS XIV. HACIENDA PÚBLICA. IMPUESTO DE INCREMENTO DEL VALOR DE LOS TERRENOSXV. JURISDICCIÓN CONTENCIOSO ADMINISTRATIVAXVIII. PERSONAL. JUBILACIÓN POR INCAPACIDAD. CONCEPTO JURÍDICO INDETERMINADO. CONCURRENCIA DE SITUACIONES. XVIII. PERSONAL INTERINO.XX. PROCEDIMIENTO ADMINISTRATIVO. MOTIVACIÓN. NECESIDAD DE DISTINGUIR ENTRE LAS QUE SON MERAS ALEGACIONES O ARGUMENTACIONES APORTADAS POR LAS PARTES EN DEFENSA DE SUS PRETENSIONES Y ESTAS ÚLTIMAS EN SÍ MISMAS CONSIDERADAS
INFORME: la reforma de los plazos concesionales en los puertos de Andalucía
Authors: Núñez Lozano María del Carmen
Published: August 2021

SUMARIO:

I. INTRODUCCIÓNII. ANTECEDENTES DE LA REFORMAIII. LA MODIFICACIÓN DEL ARTÍCULO 24: PLAZO Y PRÓRROGA DE LA CONCESIÓNIV. LAS NUEVAS DISPOSICIONES TRANSITORIASV. VALORACIÓN
Bibliografía sobre derecho autonómico
Authors: Quesada Lumbreras Javier Eduardo
Published: August 2021

Bibliografía sobre derecho autonómico. agosto – noviembre 2020
“No One Leaves Home Unless Home Is the Mouth of a Shark”: Dwelling and the Complexities of Return in Warsan Shire’s Poetry
Authors: Obi Uchenna Frances , Onyejizu Raphael Chukwuemeka
Published: August 2021

Africa’s bitter historical experience of slavery and racial discrimination influences diasporic literary writers in their representation of home and its exigencies. This is due to the sordid effect of racial conflicts culminating in disillusionment of writers, who engage in the nostalgic longing for their country of origin, notwithstanding the influences of the host country on African migrants. By exploring Warsan Shire’s poetry, this study, through the lens of modernity and globalization, examines the concept of home while x-raying locations of the African immigrant in diaspora. The research utilised the Postcolonial theory and the qualitative method of analysis to examine how diasporic immigrants, particularly female subalterns struggle to grapple with the intricacies of dwelling in a hostile clime which situates the “Us” and “Them” binary opposition on their lived conditions. It analysed Shire’s poems as a product of the transcultural identity formation of the poet, illustrating her migratory experiences through the notion of “unhomely” (in her home country) and “Homeliness” (in her host country) as dilemmas that bisect her quest for return home because of war. The study, thus, submits that globalization alternates the idea of situating home as a place of origin.
The Problem of Reliability of Information in the Global Network
Authors: Kazimi Parviz Firudin Oqlu
Published: August 2021

The reliability of information in the global information space is one of the most important problems of globalization. The credibility of various information resources is currently being studied and considered in different ways. In some cases, the problem of the reliability of information can be assessed as harmful and dangerous. This article, looks at the problem of information reliability in a general theoretical context. Efforts are also made to classify information arrays and categorize information consumers. The “general picture” of the results of a sociological survey of 100 students shows that the problem is significant. In many cases, young people are not “interested” in the reliability of the information, and in some cases they resign themselves to this situation.
Imagining a Mestiza-Self Through the Double-Consciousness Trope
Authors: Sanders Regina
Published: August 2021

This paper is a comparative study between two African-American novels: Caucasia by Danzy Senna (1998) and Quicksand by Lenna Larsen(1928). It specifically discusses how their respective mixed-race protagonist re-appropriates the double-consciousness trope –a term originally coined by African-American scholar W. E. Du Bois to describe the existence of blacks in the United States. More specifically, I argue that Danzy Senna’s novel Caucasia transcends traditional notions of mixed-race identity found in Nella Larsen’s Quicksand. First, I establish that Helga, the mulatta protagonist of Quicksand is constructed to play the version of the double-consciousness which assumes that mixed people (black and white) in United States live with internalized racism. Next, I demonstrate that Caucasia challenges Quicksand by providing us with a mulatta protagonist who re-appropriates the notions of double-consciousness by making it instrumental to her own survival and birth-right to be mixed.
Miskin dan Kaya Dalam Injil Lukas dan Teologi Pembebasan
Authors: Hananti Vasika , Subandrijo Bambang
Published: August 2021

Abstract: Harvey J. Sindima observed Liberation Theology as it flourished in Latin America, Africa, Asia, and the United States. The social situation in that society has some similarities in Luke's community. According to Philip Francis Esler's research, Luke's theology seeks to answer the social situation in Luke's community, especially regarding the relationship between the rich and the poor. This study aims to review Sindima's review of Liberation Theology based on Philip Francis Esler's thoughts on the relationship between rich and poor in Luke's Gospel. In Sindima's writings, the involvement of the rich has not been found as an effort to minimize the suffering of the poor. In this study, the author uses an analytical method. The result is that the good news for the poor in Liberation Theology is in line with the good news in Luke's Gospel. Moreover, in Luke's Gospel the liberation of the poor is not only the responsibility of the poor themselves as in the Theology of Liberation in Sindima's description, but also the responsibility of the rich as part of a sharing community. 
Abstrak: Harvey J. Sindima mengamati Teologi Pembebasan yang berkembang di Amerika Latin, Afrika, Asia, dan Amerika Serikat. Situasi sosial dalam masyarakat tersebut memiliki beberapa kesamaan dalam komunitas Lukas. Menurut penelitian Philip Francis Esler, teologi Lukas berupaya menjawab situasi sosial dalam komunitas Lukas, terutama menyangkut hubungan orang kaya dan orang miskin. Penelitian ini bertujuan untuk meninjau uraian Sindima tentang Teologi Pembebasan berdasarkan pemikiran Philip Francis Esler berkenaan dengan hubungan orang miskin dan kaya dalam Injil Lukas. Dalam tulisan Sindima masih belum ditemukan keterlibatan orang kaya sebagai upaya meminimalisir penderitaan orang miskin. Dalam penelitian ini, penulis menggunakan metode analitis. Hasil tinjauan ini adalah bahwa kabar baik bagi orang miskin dalam Teologi Pembebasan sejalan dengan pemberitaan kabar baik dalam Injil Lukas. Lebih dari itu, dalam Injil Lukas pembebasan terhadap orang miskin bukan hanya menjadi tanggung jawab orang miskin itu sendiri sebagaimana dalam Teologi Pembebasan dalam uraian Sindima, tetapi juga merupakan tanggung jawab orang kaya sebagai bagian dari komunitas yang saling berbagi.
In the Waste: On Blackness and (Being) Plastic
Authors: Lang Christopher
Published: August 2021

“In the Waste: On Blackness and (Being) Plastic” is an homage and response to Christina Sharpe’s In the Wake: On Blackness and Being. Sharpe proposes wake work as an analytic to methodologically reorient Black living in the afterlife of slavery, a “past that is not yet past.” Waste work here enters to explore the continuities of slave ships and plantations, genocidal clearings, toxic wastes, objects, and disposable bodies, providing an opening to re/consider the relationship between Blackness, animals and (other) abjects, namely plastic. If abjects can co-conspire in one another’s disposability, how can these fraught relations of ejection be reconfigured on new terms? By tending to the multifold deaths and disposals that exist along the subject-eject-object continuum in the wake of the slave ship and the extractive, settler colonial state, I argue that otherwise ways of living and dying emerge beyond the linear ecocidal model, perhaps ones that refuse disposability altogether.
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Authors: Natsuki Kisaye
Published: August 2021

This poem speaks about African peoples surviving our cross-centuries experience of displacement and subjugation where notions of home can fee lost, empty or inaccessible. It culminates to show that through this experience, another parallel and interacting reality of agency, clarity and action is occurring and we are empowered beyond any imposed systems. I recognized my strength and clarity as well as my powerful autonomous decision-making despite an experience of migration to Canada where knowing my place is always dictated. This allowed me to see even moreso the presence of this strength throughout our ancestors and still in ourselves now.