bluuebunny/crossref_metadata_2025 huggingface dataset:
ANTIMICROBIAL ACTIVITY OF PROTECTIVE PANELS FOR PULP AND DENTINS COVERING (ON MICROORGANISMS OF ORAL CAVITY NORMAL FLORA IN IN VITRO CONDITIONS)
Authors: Živković D. , Jovanović R. , Živković M. , Matevijenko V. , Šubarić Lj. , Perić D.
Published: November 2024

Materials wich use like base,and those used for direct and indirect capping should be, except certain physicalchemical and biological performance have and antibacterial effect, to act after the application on residual microorganisms. The aim of this study is that in vitro display antimicrobial activity of some selected resources that are used to protect the dentin below the permanent restoration, and some of this as medication in treating deep surface carious lesions and to directly cover any caries, either artificially open pulp. Antimicrobial activity was tested against microorganisms. On agar plates into the grooves 4 mm in diameter was inserted freshly prepared paste or base. After inserting the material into the surface of bloî od agar, was performed by incubation under aerobic conditions for 24 h in a thermostat at 37 C. Negative effect on the microorganisms, tested materials, it was estimated by the size of growth inhibition zone.
COMPLICATIONS AND SEQUELAE OF BACTERIAL MENINGITIS IN CHILDREN
Authors: Odalović D. , Čukalović M. , Perić M. , Odalović A.
Published: November 2024

Bacterial meningitis is an infectious disease, with potentially fatal outcome, where the main event reflects inflammation of soft meninges and associated phenomena on the other structures of the central nervous system. Despite the use of powerful antibiotics and other drugs and therapeutical measurements, the number of diseased, as well as the mortality from this suerious disease, are not changed for years. The most common pathogens of bacterial meningitis in children age are H.influenzae, S.pneumoniae and N. meningitidis. Other significant causes are Streptococcus B, E.colli, L.monocytogenes, Salmonella, Pseudomonas and other Gram-negative bacteria. Our research included 120 children sufferin from bacterial meningitis. Out of the total number of treated children, the highest incidence was in age of infants (51,6%), and regarding to the gender structure, male were somewhat more frequent (54,6%). The most significant unfavorable factors for occurrence of sequalea were: younger age, the type of bacteria, bacterial concentration in cerebrospinal fluid, the time required for liquor sterilization, hypoglycorrhachia, focal neurological sings and convulsions. Complications could relate to the central nervous system or some other organic systems. Convulsions are the early complications of bacterial meningitis. Hearing impairment is often present with severe forms of bacterial meningitis with convulsions, prolonged febrile state and presence of hypoglycorrhachia. Epilepsy is rare, late sequelae, while hydrocephalus is more likely to occur in neonatal meningitis. Heavy neurological damage occures in 5% of the children.
OPERATIONS OF VARICOCELE IN CHC PRIŠTINA - GRAČANICA (2005-2010)
Authors: Jovanović P. , Trpković S. , Bojović P. , Jockić P. , Skenderić S.
Published: November 2024

We treated 15 subfertile men with varicocele with combination of subinguinal ligature of spermatic vein or plexus pampiniformis and medicaments. In a five-year period , we registered 5 pregnancies (30%) in female partners of our patients. We consider subinguinal ligature of spermatic vein as minimally invasive and cost-effective initial treatment of "infertile couples".
USING COLOR DOPPLER ULTRASOUND IN PREOPERATIVE ESTIMATION OF QUALITY OF VASCULAR SYSTEM IN ORDER TO CREATE ARTERIOVENOUS FISTULA FOR HAEMODIALYSIS
Authors: Stolić R. , Perić V. , Jovanović A. , Sovtić S. , Stolić D. , Krdžić B. , Šipić M. , Pajović S. , Novaković T. , Tomić B. , Šubarić-Gorgieva G.
Published: November 2024

Doppler ultrasound check-up significantly increases a possibility of initial functioning of arteriovenous fistula. The aim of the study was the preoperative evaluation of vascular system of the extremity for creation of arteriovenous fistula for haemodialysis. The examination was organized at Urology and Nephrology Clinic, Clinical Centre "Kragujevac". The examined subjects were 87 patients, 52 (59,8%) male and 35 (40,2%) female, mean age of 61±11,1 years. There were performed the routine biochemical analyses, demographical structure and clinical characteristics (type of anastomosis, fistula placement, arterial blood pressure, lumen size of the artery and vein, measured intraoperatively by Doppler technique). In 72,1% of patients with functioning fistula there was made a terminal-lateral anastomosis, compared to 57,7% of patients with initial non-functioning fistula, there was found a statistically significant difference between the groups p=0,008. Radiocephalic fistula was created in 62,3% of the examined patients with initial functioning , in patients with non-functioning, the distal fistula was created in 38,5% of the examined patients. Regarding the type of the fistula location there was obtained statistically significant difference; p=0,04. There was found a statistically significant difference between the group of patients with initial functioning of arteriovenous and the group without, concerning the intraoperatively measured lumen of the cephalic vein (2±0,29 vs. 2±0,38 mm); p=0,03 (2,1±0,5 vs. 1,8±0,4); p=0,0009. Statistical significance between the groups was also found in the lumen of the cephalic vein verified by the ultrasound (2,1±0,53 vs. 1,8±0,25 mm); p=0,038. Peak of the systolic speed of the radial, corelated to the group of patients with and the group without initial functioning fistula (50 ± 12,42 vs. 40 ± 6,9 cm/sec); (p=0,0026), has statistically significant value. By the correlation of the group of patients with initial functioning and the group of patients without initial functioning, regarding hemoglobin (97 ± 16,1 vs. 88 ± 18,3 g/l); p=0,006 and the level of urea (22,6 ± 12,7 vs. 23,9 ± 9,8); p=0,02, there was found a statistically significant difference. Color Doppler ultrasound has an important role in preoperative evaluation of blood vessels and it represents a meaningful predictive parameter of functioning of arteriovenous fistula. 
INTESTINES INVAGINATION IN 2-YEAR-OLD CHILDREN
Authors: Hajrović Š. , Preljević I.
Published: November 2024

Intussusception is a specific type of delay in the bowel passage which according to frequency, clearly takes place in children's abdominal surgical pathology. Most commonly occurs in children during the first year of life and from 6 and 9 months where the 3 diagnosed in boys than girls 2. The incidence is 1-4 per 1000 live-born children. The most common form of invagination is ileocecala (80%), ileocolic, and ileo-ileal colo-colic. Intussusception is most often idiopathic (almost 90%) cases, while in a very small percentage described the existence pathoanathomic substrate (points leaders), which areusually enlarged lymph nodes or Meckel divertikulum. Surgical therapy for these other groups is much more radical. For a period of 6 years (2003-2009), which we cover the work, the children’s surgery of the Health Center Novi Pazar was treated with 22 children diagnosed with invagination (intussusception). Of this number, there were 14 (63.63%) boys, 8 girls (36.36%), and the average number of cases was 4.44 per year. Frequently appeared ileo-cecal and ileo-ileal (90.63%), while colocolic and ileocolic appeared much less (9.09%). The most common clinical symptoms were the presence of fresh blood in the stool, painful cramps and, vomiting who did the dominant clinical presentation in the majority. Following: fever, malaise, and even convulsions. The conclusion is: triad of symptoms (pain, vomiting and blood in the stool in the form "of currant jelly") were pathognomonic diagnosis. The method of choice in the diagnosis and conservative therapy is the initial hydrostatic desinvagination controlled ultrasound.
ACUTE BLEEDING IN GASTROINTESTINAL STROMAL TUMOR OF THE OESOPHAGUS - CASE REPORT
Authors: Živić Ž. , Zdravković N. , Milinić S. , Stolić R.
Published: November 2024

Gastrointestinal stromal tumors are the most common mesenchymal tumors of the gastrointestinal tract. Anatomic locations, in decreasing, are: stomach (60%), small intestine (30%), colon and rectum (5%), oesophagus (5%). Histogenesis is still unclear, criteria of malignancies are not adapted, biological behavior in not known, and the diagnosis and prognosis are questionaly. Although usually asymptomatic, large gastrointestinal stromal tumor may present with repeated bleeding. Most often diagnosis in mode during the explorative laparotomy and postoperative immunohistochemical analysis of specimen. In this paper we have analized patients with gastrointestinal stromal tumors of the oesophagus. The patient preoperatively diagnosed submucosal tumor of the esophagus presented with repeated gastrointestinal bleeding. After the resuscitation, we performed total gastrectomy. The immunohistochemical analysis proved benign GIST. Surgical resection is a treatment of choice gastrointestinal stromal tumors presented with gastrointestinal bleeding. 
SCORPIONISM IN MONTENEGRO: A REPORT OF THREE CASES
Authors: Radosavljević M. , Pajović V.
Published: November 2024

Aim: There is a few data in the literature on the medical significance of Mesobuthus gibbosus whose sting is considered potentially hazardous for human health. In this case two patients in the age of 16 and 25 with diagnosed scorpionism Mesobuthus gibbosus are described.Here is the example of woman 49 years old who had scorpionism, Euscorpius italicus. Case report: The stings by Mesobuthus gibbosus in both cases occurred during the construction work done by tourists. The following general symptomes were noticed: excitement, pulsating pains, muscle cramps in legs, pallor and profuse sweating. Local symptoms were: paresthesis, bruised skin, erythematous swelling with a red spot in the centre.After two years one patient had occasional muscle twitching, extension of superficial vein and pain on her injured leg. Sting by Euscorpius italicus happened in a bathroom while doing her physiological needs. The local symptoms were: swelling, redness and pain. The general symptoms were: numbness of a neck, intensive salivation and nausea. The symptomatic therapy was implemented in all three cases and was successful. Conclusions: Mesobuthus gibbosus and Euscorpius italicus can be found at the Montenegrian coast and represents a real danger for the health of the local community and tourists. Therapy of these scorpionism is only symptomatic.
BONE AND JOINT TUBERCULOSIS IN OUR STUDY - EPIDEMIOLOGICAL, DIAGNOSTIC AND THERAPEUTIC SPECIFICS
Authors: Grbic R. , Grbic M. , Tabaković D. , Bozovic A.
Published: November 2024

Bone and joints tuberculosis is a secondary infection of locomotor system, caused by a Mycobacterium Tuberculo- sis. Low incidence of tuberculosis has been maintained for a long period of time due to use of efficient chemotherapy. Howe- ver, in recent years increasing number of newly registered cases is seen, due to wide use of immunosuppressive therapy, spread of HIV, aging population. Those factors influence mycobacterium more likely to become drug resistant. The objecti- ve of the study is to review epidemiological, clinical,radiology and laboratory findings of bone and joints tuberculosis in our patients, and treatment efficiency. In 15 years of prospective study, 107 different ages male and female adult patients, were treated. In most cases spinal tuberculosis was registered (24%), then hip tuberculosis (17%), knee tuberculosis (16%) and tu- berculosis of sacroiliac joint (7%). Non operative treatment with antitubercular drugs was performed in all patients, while in 41% we used operative treatment. Early diagnosis of bone and joints tuberculosis, while treated with non operative (anti tu- berculosis drugs) and operative methods are preconditions to achieve high percentages of long term remission.
MORPHOMETRIC ANALYSIS GANGLIONIC STRUCTURES OF MYENTERIC NERVOUS PLEXUS FORE WALL OF HUMAN STOMACH DURING PROCESS OF AGING
Authors: Mandić P. , Filipović T. , Đukić N. , Nedeljković V.
Published: November 2024

Aging as continous biological process, affect all organic systems. Aging is believed to affect the structure and function of the enteric nervous system. Prymary aim these studies is to verify changes in number of neurons in myenteric nervous plexus of human stomach within relation to process of aging. In the course of research played is analysis number of neurons in myenteric nervous plexus of anterior wall stomach. Analysis was performed within 30 tissue samples which are classified into three age groups: (from 20 to 44 years, from 45 to 64 years and over 65 to 84 year old). Played is histological processing and stained with HE, Cresyl-violet, AgNO3 and AChE methods. The morphometric measures operated by morphometric multipurpose test system M42. Finding results are statistically processed by Student-t-test and analysis of variance. Discernible is very heavy loss of neurons of myenteric plexus within the oldest group in relation to younger groups. Applied test show are having statistically notable variance between age groups. In percentage, the loss of neurons in the oldest group in relation to others was from 13,81% to 15,44%.
UTILIZATION OF ANTIBIOTICS FOR SYSTEMIC USE AT THE SURGICAL CLINIC OF THE CHC - PRISTINA IN GRACANICA
Authors: Bulajić S. , Hadžistević S. , Milovanović D. , Trajković G. , Vujačić N. , Stanojević Z.
Published: November 2024

In our work we analyzed utilisation of antibiotics for systemic use at the Surgical Clinic of the Clinical Hospital Centre - Pristina in Gracanica in 2007. and 2008. Data on antibiotic utilization were delivered on the basis of drug dispensing records from the Central Hospital Pharmacy during the two-years period. Antibiotics were distributed inside the ATC/DDD system in accordance with WHO guidelines. Quantitative antibiotics' utilisation was expressed as number of defined daily doses per 100 patient-days (DDDs/100 PD). Overall use of antibiotics in 2007 was 123.37 DDDs/100 PD, and 125.09 DDDs /100 PD in 2008. Three most utilized antibiotics in 2007. were cefuroxime 24.26 DDDs/100 PD (19.66 % of total antibiotics' use), ceftriaxone 16.65 DDDs/100 PD (13.49 %), and cephalexin 15.78 DDDs/100 PD (12.79 %). In 2008. the most utilized were ceftriaxone 23.23 DDDs/100 PD (18.57 %), cefuroxime 22.53 DDDs/100 PD (18.01 %), and co-trimoxazole 19,55 DDDs/100 PD (15.63 %). Qualitative and quantitative part of the consumed antibiotics was mainly in accordance with the results of similar researches in our country.
THE IMPORTANCE OF MEASUREMENT OF MYELOPEROXIDASE ACTIVITY IN ACUTE CORONARY SYNDROME
Authors: Dragojević I. , Mirić D. , Božović B. , Dragojević M.
Published: November 2024

In the last ten years significant progress has been made in understanding of role of neutrophil granulocytes and their enzyme myeloperoxidase in the evolution and complications of atherosclerosis. Myeloperoxidase plays the role in the development of vulnerable plaque associated with the development of acute coronary syndrome. There is much evidence that suggests the role of myeloperoxidase in the development of vulnerable plaque. We investigate the value of myeloperoxidase as marker of the presence of vulnerable plaques in patients with acute coronary syndrome. Myeloperoxidase activity was significantly high in serum of the patients with the diagnosis of acute coronary syndrome as reflection of the presence of vulnerable plaques. Increase in myeloperoxidase activity in serum of patients with the diagnosis of acute coronary syndrome precedes to myocardial damage.
ASSOCIATED OCULAR FINDINGS IN PATIENTS WITH OCULAR CONTUSION WITH HYPHAEMA
Authors: Vukša D. , Stamenković D. , Jakšiċ V. , Mirković M. , Đokić O. , Dolićanin Z.
Published: November 2024

Ocular contusion followed by hyphema is very common ophthalmologic problem. Aim: to determinate basic epidemiologic characteristics, comorbidity of other ocular findings, as well as complications associated with different grade of hyphema. Method: 55 patients with hyphema and ocular contusion were examinated. Results. Male had hyphema almost four times more often then women (80%:20&); workers (34.5%), afterward pensioners (20%) and pupils (18.2%) were the most often injured. The most frequent causes were the wood (43.6%), stone (10.9%) and vegetable foreign body (9.1%), The first grade of hyphema was demonstrated at 30 patients (54.5%), the second at 16 (29.1%), the third at 6 (10.9%) and the fourth at 3 (5.5%). The most frequent associated ocular findings regarding to segments were the following : haematoma palpebrarum, subconjunctival hemorrhage, erosio corneae and haemophthalmus. Secondary glaucoma was the most common ocular complication and it was finding at one patient with the first stage of hyphema but at all patients with the fourth grade of hyphema. Conclusion: grade of hyphema is directly proportional with a grade of ocular complications and frequency of associated ocular findings.
GOITERS NODES THYROID GLAND AS A RESULT OF MODIFIED APOPTOSIS AND METHODS FOR DETERMINING
Authors: Aritonović Pribaković J. , Marković Lj.
Published: November 2024

Hyperplasia in goiter may be associated with altered apoptosis thyrocytes. There are numerous techniques for the detection and quantification of apoptosis. Some of them were light microscopy, electron microscopy, flow cytometry, studying the activities of caspase, DNA fragmentation and so on. In patients with multinodular endemic goiter after six months of iodine load, number of apoptotic thyrocytes increased by ten times, Bcl-2 is missing and Bax appeared in thyrocytes. Excess iodine in molecular form causes apoptosis in thyrocytes creating free radicals, mitochondrial damage and release of cytochrome c. Research shows that the level of sFas in the serum of patients with multinodular goiter increased compared to normal controls, it can still point to the reduced expression of Fas protein on the surface of cells that then leads to increased thyroid cell proliferation. Further study of apoptosis in goiter combined morphological and biochemical methods are important for better diagnosis and treatment of diseases.
PARANEOPLASTIC PEMPHIGUS ASSOCIATED WITH NON-HODGKIN'S LYMPHOMA: A CASE REPORT
Authors: Jovanović Tamara , Tanasilović Srđan , Relić Milijana , Sojević Zorica , Živanović Dubravka
Published: November 2024

Introduction: Paraneoplastic pemphigus is an autoimmune bullous and erosive mucocutaneous syndrome associated with malignancy. First of all, it is associated with lymphoproliferative disorders, but also with solid tumors.

Case report: We present a 73-year-old female patient who developed polymorphic lesions on the skin and mucous membranes after treatment of nonHodgkin's lymphoma. Disseminated pale erythematous macules, exudative papules and plaques, papulovesicles, pustules, targetoid lesions and bullae are present on the skin, mostly with a flaccid roof, some with a hypopyon. Oral mucosal changes included erosions and ulcerations covered by fibrin deposits. Histopathological examination of several biopsies revealed the presence of interface dermatitis, eosinophils, necrotic keratinocytes, as well as intraepidermal cracks with acantholytic cells, dominated by eosinophils. Direct immunofluorescence microscopy of the perilesional skin showed fluorescent intraepidermal reticular IgG deposits, as well as segmental linear IgG deposits along the basement membrane zone. Indirect immunofluorescence microscopy revealed circulating IgG autoantibodies binding to monkey esophagus and rat bladder at a titer of 1:320. Initially, he was treated with systemic corticosteroid therapy, then, in consultation with a hematologist, rituximab therapy was indicated (375 mg/m2, 4 doses once a week). The patient died after the 2nd dose of rituximab.

Conclusion: Considering the different clinical, histopathological and immunological features, paraneoplastic pemphigus presents a challenge for the clinician. Knowledge of different clinical presentations, as well as individualization of therapy with a multidisciplinary approach, are of crucial importance. 
The Relationship Between Innovation Strategy and Performance with the Moderating Role of Environmental Dynamism
Authors: Dziurski Patryk
Published: November 2024

Purpose: This study aims to investigate the relationship between innovation strategy and performance with a moderating role of environmental dynamism in Poland. Innovation strategy and performance are popular topics of many studies, but the relationship between them is complex, as previous research reports mixed results. On the one hand, exploration, exploitation and ambidexterity innovation strategies have positive effects on performance, but on the other hand some research indicates a negative relationship. These mixed results are often explained by the dynamism of environment.

Design/methodology/approach: The paper presents the results of a quantitate research that uses CAWI techniques (Computer-Assisted Web Interview). Data were acquired from 259 respondents working in large and innovative firms in Poland. The paper presents the results of the hierarchical multiple regression on the relationship between innovation strategy and performance with a moderating role of environmental dynamism.

Findings: Research results show the positive relationship between exploration, exploitation as well as combined innovation ambidexterity strategies and organisational outcomes, while the relationship between balanced innovation ambidexterity strategy and performance is not statistically significant. Moreover, the research shows that environmental dynamism is a significant factor strengthening the positive relation between innovation strategy and performance, but only in the case of exploration and balanced innovation ambidexterity strategies. It also points out that the environmental dynamism strengthens the negative link between exploitation innovation strategy and performance.

Practical implication: Research results show that both exploration and exploitation innovation strategies improve organisational performance. Moreover, the simultaneous pursuit of exploration and exploitation innovation activities allows to achieve better organisational performance. Managers should also take into consideration the environmental dynamism, as it impacts the relationship between innovation strategy and performance. Firms operating is stable environments should execute an exploitation innovation strategy, while firm in dynamic environments should chose an exploration innovation strategy or balanced innovation ambidexterity strategy to achieve better performance. The combined innovation ambidexterity strategy seems to be an appropriate strategy in stable as well as dynamic environments.

Originality/value: The paper provides new insights on the link between exploration, exploitation and ambidexterity innovation strategies and organisational outcomes. It does not focus just on exploration or exploitation innovation strategies, but also on the jointed outcomes of both strategies on performance and its interplay with the environmental dynamism.
A profile of children with traumatic brain injury admitted to the paediatric intensive care unit of Red Cross War Memorial Children’s Hospital in Cape Town, South Africa, between 2015 and 2019
Authors: Du Plooy E , Salie S , Figaji A A
Published: November 2024

Background. Paediatric traumatic brain injury (TBI) is a public health problem with high morbidity and mortality.
Objectives. To highlight risk factors and describe associated morbidity and mortality of children admitted with TBI to the Paediatric Intensive Care Unit (PICU) at Red Cross War Memorial Children’s Hospital, Cape Town.
Methods. We retrospectively documented the hospitalisation of all children with TBI admitted into our PICU between 2015 and 2019.
Results. Of 320 children identified, 314 were enrolled: 267 (85%) had severe TBI (Glasgow Coma Scale (GCS) ≤8), 36 (11.5%) moderate TBI (GCS 9 - 12) and 11 (3.5%) mild TBI (GCS ≥13). Median age was 6.5 (interquartile range (IQR) 3.5 - 8.9) years; 194 (61.8%) were male. Motor vehicle collisions accounted for 75% (235) of injuries. Two hundred and seventy-nine (88.9%) children were invasively ventilated for a median of 4.5 (IQR 1 - 8) days; 13.9% (38/273) had a failed extubation and 10.8% (30/277) required tracheostomies. One hundred and sixty-three children (52.2%, n=312) had intracranial pressure monitoring. Almost a third (81/257) required vasopressor support. Approximately 40% (113/286) developed trauma-related seizures; 15.4% (44/286) required a thiopentone infusion and 6% (17/280) a decompressive craniectomy. Common complications were as follows: 12.2% developed post-extubation stridor (34/279), 10.5% a hemiparesis (33/314) and 6.4% diabetes insipidus (19/298). Median PICU stay was 4 (IQR 1 - 10) days, and hospitalisation 11 (IQR 5 - 21) days. Ninety-three (29.6%) children were transferred for further rehabilitation; 38 (12.1%) died.
Conclusion. Children admitted to our PICU with TBI had considerable morbidity and mortality, but this is a marked improvement since the 1990s. Enhanced primary preventive strategies, especially for motor vehicle collisions, are imperative to prevent TBI in children.
An Improved Bacterial Single-cell RNA-seq Reveals Biofilm Heterogeneity
Authors: Yan Xiaodan , Liao Hebin , Wang Chenyi , Huang Chun , Zhang Wei , Guo Chunming , Pu Yingying
Published: November 2024

In contrast to mammalian cells, bacterial cells lack mRNA polyadenylated tails, presenting a hurdle in isolating mRNA amidst the prevalent rRNA during single-cell RNA-seq. This study introduces a novel method, Ribosomal RNA-derived cDNA Depletion (RiboD), seamlessly integrated into the PETRI-seq technique, yielding RiboD-PETRI. This innovative approach offers a cost-effective, equipment-free, and high-throughput solution for bacterial single-cell RNA sequencing (scRNA-seq). By efficiently eliminating rRNA reads and substantially enhancing mRNA detection rates (up to 92%), our method enables precise exploration of bacterial population heterogeneity. Applying RiboD-PETRI to investigate biofilm heterogeneity, distinctive subpopulations marked by unique genes within biofilms were successfully identified. Notably, PdeI, a marker for the cell-surface attachment subpopulation, was observed to elevate cyclic diguanylate (c-di-GMP) levels, promoting persister cell formation. Thus, we address a persistent challenge in bacterial single-cell RNA-seq regarding rRNA abundance, exemplifying the utility of this method in exploring biofilm heterogeneity. Our method effectively tackles a long-standing issue in bacterial scRNA-seq: the overwhelming abundance of rRNA. This advancement significantly enhances our ability to investigate the intricate heterogeneity within biofilms at unprecedented resolution.
Constraints and creativity: Transforming a live artistic experience for children into Zoom
Authors: Graça Jorge , Rodrigues Paulo M. , Rodrigues Helena , Knudsen Jan Sverre
Published: November 2024

This article explores how the Portuguese ensemble Companhia de Música Teatral (CMT) adapted their live performance PaPI – Opus 8 for Zoom in response to the 2020 COVID-19 pandemic, which severely limited in-person gatherings and artistic events. Originally planned for a nationwide tour, PaPI – Opus 8 faced major challenges due to pandemic restrictions, prompting CMT to rework the piece for an online audience. The result was a transformed version titled PaPI – Opus 8.z, crafted specifically for the Zoom video-conferencing platform. The article gives a detailed examination of this performance piece and its reception, providing a comprehensive understanding of the challenges and achievements associated with the adaptation of this live performance to the virtual realm.
The article explores the transformation process into an online format, examining both the losses and gains incurred. To facilitate this exploration, an introduction to CMT and a contextualization of their work is given. Subsequently, PaPI – Opus 8 is situated within CMT's body of work, including its "sister" pieces, with a particular focus on evaluating the significance of interaction with the audience during the performance. This is followed by an overview of the pandemic-related constraints and the strategies employed by CMT to continue creating performances. To illustrate these strategies, two other CMT creations developed during quarantine are discussed as pivotal steps on the pathway from PaPI – Opus 8 to the transformed online performance PaPI – Opus 8.z.
Cover photo by Companhia de Música Teatral
Application of big data and artificial intelligence in visual communication art design
Authors: Zhang Ailing
Published: November 2024

In the era of continuous development of computer technology, the application of artificial intelligence (AI) and big data is becoming more and more extensive. With the help of powerful computer and network technology, the art of visual communication (VISCOM) has ushered in a new chapter of digitalization and intelligence. How vision can better perform interdisciplinary and interdisciplinary artistic expression between art and technology and how to use more novel technology, richer forms, and more appropriate ways to express art has become a new problem in visual art creation. This essay aims to investigate and apply VISCOM art through big data and AI methods. This essay proposed the STING algorithm for big data for multi-resolution information clustering in VISCOM art. In addition, the convolutional neural network (CNN) in AI technology was used to identify the conveyed objects or scenes to achieve the purpose of designing art with different characteristics for different scenes and groups of people. STING is a multi-resolution clustering technique for big data, with the advantage of efficient data processing. In the experimental part, this essay selected a variety of design contents in VISCOM art, including logo design, text design, scene design, packaging design and poster design. STING and CNN algorithms were used to cluster and AI-identify the design elements 16 of the design projects might contain. The results showed that the overall average clustering accuracy was above 82%, the accuracy of scene element recognition mainly was above 80%, and the accuracy of facial recognition was above 80%; this showed that this essay applied AI and big data to the design of VISCOM, and had a good effect on the clustering and identification of design elements. According to expert scores, these applications’ reliability and practicality scores were above 70 points, with an average of about 80 points. Therefore, applying big data and AI to VISCOM in this essay is reliable and feasible.
Multi-angle information aggregation for inductive temporal graph embedding
Authors: Wei Shaohan
Published: November 2024

Graph embedding has gained significant popularity due to its ability to represent large-scale graph data by mapping nodes to a low-dimensional space. However, most of the existing research in this field has focused on transductive learning, where fixed node embeddings are generated by training the entire graph. This approach is not well-suited for temporal graphs that undergo continuous changes with the addition of new nodes and interactions. To address this limitation, we propose an inductive temporal graph embedding method called MIAN (Multi-angle Information Aggregation Network). The key focus of MIAN is to design an aggregation function that combines multi-angle information for generating node embeddings. Specifically, we divide the information into different angles, including neighborhood, temporal, and environment. Each angle of information is modeled and mined independently, and then fed into an improved gated recuttent unit (GRU) module to effectively combine them. To assess the performance of MIAN, we conduct extensive experiments on various real-world datasets and compare its results with several state-of-the-art baseline methods across diverse tasks. The experimental findings demonstrate that MIAN outperforms these methods.
Educação para a cidadania: o papel inovador do projeto político-pedagógico de educação popular na construção de uma democracia participativa e saudável
Authors: Andrade Alex Pires
Published: November 2024

Este artigo se propõe a examinar o papel crucial da educação na promoção da transformação democrática, inspirando-se nas profundas reflexões de Norberto Bobbio. Ele explora os desafios complexos e as oportunidades emergentes que se manifestam em um mundo em constante evolução, marcado pela revolução digital, mudanças climáticas globais e transformações políticas. O texto dialoga com as obras de Steven Levitsky e Daniel Ziblatt em "Como as Democracias Morrem", destacando a importância de uma educação cidadã que fortaleça as bases democráticas e previna a erosão das instituições. Além disso, a leitura complementar de "Liberalismo Político" de John Rawls oferece uma perspectiva enriquecedora sobre os fundamentos do liberalismo e sua aplicação na sociedade contemporânea, enfatizando a necessidade de um projeto político-pedagógico que promova a participação ativa e consciente dos cidadãos. Assim, este trabalho acadêmico fundamenta-se em uma extensa pesquisa bibliográfica, visando elucidar os princípios e fundamentos da Educação Popular e da Gestão Democrática. Com ênfase especial na identificação de sua convergência dentro de um projeto político de sociedade, o artigo busca demonstrar como a educação pode servir como um pilar essencial para a construção de uma democracia saudável e participativa. Ao integrar teorias políticas e educacionais, o estudo propõe um modelo de educação que não apenas informe, mas também inspire os cidadãos a se tornarem agentes de mudança em suas comunidades, contribuindo para um futuro mais justo e equitativo.
Takotsubo Following Severe Anaphylactic Reaction during Anesthesia Induction
Authors: Saleh OBEIDAT , A Boucetta , H Siyam , A Altimimi , S Arous , M Bennouna , A Drighil , R Habbal
Published: November 2024

Introduction: Takotsubo cardiomyopathy (apical ballooning or broken heart syndrome) is a reversible left ventricular dysfunction due to apical asynergy that occurs typically after sudden emotional stress in a subject without coronary disease. Anaphylaxis is a severe, life-threatening, generalized hypersensitivity reaction, most often starting with urticaria and/or angioedema, that may involve cardiovascular and respiratory systems. Cardiovascular symptoms, including hypotension, cardiac arrhythmia and chest pain, are presumably linked to cardiac mast cell mediator release.
Case Report: We describe the case of a woman who experienced a profound reversible cardiomyopathy with typical features of Takotsubo's syndrome during an anaphylactic reaction.
Conclusion: Exposure to catecholamines and beta-receptor agonists used routinely during procedures and diagnostic tests can precipitate all the features of stress cardiomyopathy, including cardiac isoenzyme elevation and rapidly reversible cardiac dysfunction. These observations strongly implicate excessive sympathetic stimulation as central to the pathogenesis of this unique syndrome.
Synergistic Effects of Combined Organic and Inorganic Nitrogen on Wheat Nutrient Uptake and Soil Fertility in Inceptisol of Eastern Uttar Pradesh, India
Authors: Singh Kajal , Sharma Pramod Kumar , Singh Yad Vir , Barnwal Prabhakar Prasad , Jaiswal Shubham , Goswami Sarbasree , Deepak
Published: November 2024

A pot experiment was conducted during the year 2020 at the Institute of Agricultural Sciences, BHU, Varanasi, to study the impact of organic and inorganic sources of nitrogen on nutrient content in wheat and soil physic-chemical properties of the Inceptisols of eastern Uttar Pradesh. The experiment was arrangedin completely randomized design with 10 treatment combinations having three replications. The experiment results indicated that use of 50% of the recommended nitrogen dose through urea along with 50% N through poultry manure in integration significantly enhanced the nitrogen, phosphorus and potassiumcontent in grain and straw compared to the control. The T5 treatment, in which combined use of 50% RDN and 50% poultry manure recorded highest micronutrient concentrations (i.e. Zn: 14.3 and 21.41 mg kg−1, Cu: 37.83 and 20.66 mg kg−1, Mn: 20.03 and 3.65 mg kg−1, and Fe: 231.73 and 54.31 mg kg−1) in both straw and grain, respectively as compared to control (T1). The use of organic source with fertilizers also increased the post-harvest soil fertility as available N, P, and K, along with DTPA-extractable micronutrients. Overall, the treatment incorporating poultry manure @ 50% RDN and 50% PM (5.26 t ha−1) provided best results among all treatments in term of nutrient content of wheat and soil fertility.
Thermal and Structural Characterization of Coke Deposition on Spent NiMo Catalyst Used During Catalytic Upgrading of Heavy Oil
Authors: Esla Jaggu D. , Kovo Abdulsalami S. , Abiodun Zakariyah Abdullahi , Suleiman Kamaldeen Olayinka
Published: November 2024

Catalyst deactivation has become a major concern in the refining industry globally. The deactivation of hydroprocessing catalyst by coke deposition reduces its useful life, the on-stream time of the process involved and the profitability of upgrading heavy oils to useful products. There are various methods used in thermal and structural characterization but for the purpose of this research journal, Thermogravimetric Analysis (TGA), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) and Fourier Transform Infrared (FTIR) were carried out on both fresh and spent NiMo catalyst. The TGA results of the spent catalyst samples indicates the presence of coke species with the major portion of the species being ‘medium’ and ‘hard’ coke (second and third stage). There was also no significant change in loss of weight with change in heating rate. In comparison to the fresh catalyst, the SEM micrograph of the used catalyst indicates the formation of poor porous-structure and block-shaped crystallites depicting the sintering of particles because of the higher calcination temperature. O–C–O bond stretching vibrations with an anatase morphology were observed using FTIR on the spent catalyst sample confirming the presence of the coke species while the XRD results showed the formation and nature of carbonaceous deposits on the spent catalyst’s surfaces. A rutile phase with a tetragonal symmetry was detected for spent NiMo diffraction peaks, with the major phase indicating the presence of Carbon with a hexagonal phase.
First Report on the Bark Feeding Wasp Species on Lowland Apple and Stone Fruit Trees of Himachal Pradesh, India
Authors: Sharma Surender K. , Chatterjee Debamitra , Shivani
Published: November 2024

Wasps are predominant in the Oriental and Palaearctic regions, sometimes used as dishes, and are important candidates for different ecosystems as predators and pollinators. In India, more than a dozen predatory wasp species have been reported to contribute to biological pest control. Various wasp species are invasive in some continents and pose an alarming threat to apiaries, households, and orchardists. Wasps feed on tree bark to fulfill their dietary needs but become dangerous to humans in orchards.  The scientific reports on tree bark defoliation by wasps are little and scanty. A field-based survey study assessed the quantum of infestation in fruit orchards and the threat experienced by field workers in the Kangra district of Himachal Pradesh, India during the years 2022 and 2023. Wasps of species, Vespa basalis and V. auraria were encountered infesting five orchards on tree bark in Samloti (32.08° N, 76.35° E), Shahpur (32.2197° N, 76.1728° E), Nagrota (32.1054° N, 76.3789° E), and Hatwas (32.05 ° N and 76.40 ° E). Average tree per cent infestation during these years was recorded as 26.83%, 28.85%, 40.04%, 75% and 57.91% in lowland apple (Malus domestica), pear (Pyrus communis), peach (Prunus persica), losada (Cordia myxa), and sirish (Albizia lebbeck), respectively. This bark-feeding activity rendered the infested trees unfit for optimal growth, feeding on fruits, suggesting a potential threat to local orchard productivity. The noxious presence of wasps hinders activities, obstructs and stings field staff. Escalating wasp damage led farmers to adopt fermented honey bottle traps. This study is the maiden attempt to address the harmful behavior of wasps as tree bark feeders in India and may pave the way for detailed research in orchards. Thus, keeping in view the role of wasps within agricultural landscapes as detrimental agents, mindful management practices are therefore necessary.
Measurement properties and implications of the Brief Resilience Scale in healthy workers
Authors: Soer Remko , Six Dijkstra Marianne W M C , Bieleman Hendrik J , Stewart Roy E , Reneman Michiel F , Oosterveld Frits G J , Schreurs Karlein M G
Published: March 2019

Objectives

The aim of this study was to study measurement properties of the Dutch Language Version of the Brief Resilience Scale (BRS-DLV) in blue and white collar workers employed at multiple companies and to compare the validity and factor structure to other language versions.

Methods

Workers (n = 1023) were assessed during a cross-sectional health surveillance. Construct validity was tested with exploratory and confirmatory factor analyses (EFA and CFA) and hypothesis testing. Reliability was tested with Cronbach’s alpha.

Results

A two-factor structure of the BRS-DLV had good model fit in both EFA and CFA, which could be explained by difficulties of workers with reversed order items. After excluding these inconsistent answering patterns, a one-factor structure showed good model fit resembling the original BRS (χ2 = 16.5; CFI & TLI = 0.99; SRMR = 0.02;RMSEA = 0.04). Internal consistency is sufficient (Cronbach’s α = 0.78). All five hypotheses were confirmed, suggesting construct validity.

Conclusions

Reliability of the BRS-DLV is sufficient and there is evidence of construct validity. Inconsistent answering, however, caused problems in interpretation and factor structure of the BRS-DLV. This can be easily detected and handled because item 2, 4 and 6 are in reversed order. Other language versions differ in factor structure, most likely because systematic errors are not corrected for. To collect valid data, it is advised to be aware of inconsistent answering of respondents.
Assemblies of Peptides in a Complex Environment and their Applications
Authors: Wang Huaimin , Feng Zhaoqianqi , Xu Bing
Published: March 2019

Using peptide assemblies with emergent properties to achieve elaborate functions has attracted increasing attention in recent years. Besides tailoring the self‐assembly of peptides in vitro, peptide research is advancing into a new and exciting frontier: the rational design of peptide assemblies (or their derivatives) for biological functions in a complex environment. This Minireview highlights recent developments in peptide assemblies and their applications in biological systems. After introducing the unique merits of peptide assemblies, we discuss the recent progress in designing peptides (or peptide derivatives) for self‐assembly with conformational control. Then, we describe biological functions of peptide assemblies, with an emphasis on approach‐instructed assembly for spatiotemporal control of peptide assemblies, in the cellular context. Finally, we discuss the future promises and challenges of this exciting area of chemistry.
Isotopic Labeling Reveals Active Reaction Interfaces for Electrochemical Oxidation of Lithium Peroxide
Authors: Wang Yu , Lu Yi‐Chun
Published: March 2019

The unresolved debate on the active reaction interface of electrochemical oxidation of lithium peroxide (Li2O2) prevents rational electrode and catalyst design for lithium‐oxygen (Li‐O2) batteries. The reaction interface is studied by using isotope‐labeling techniques combined with time‐of‐flight secondary ion mass spectrometry (ToF‐SIMS) and on‐line electrochemical mass spectroscopy (OEMS) under practical cell operation conditions. Isotopically labelled microsized Li2O2 particles with an Li216O2/electrode interface and an Li218O2/electrolyte interface were fabricated. Upon oxidation, 18O2 was evolved for the first quarter of the charge capacity followed by 16O2. These observations unambiguously demonstrate that oxygen loss starts from the Li2O2/electrolyte interface instead of the Li2O2/electrode interface. The Li2O2 particles are in continuous contact with the catalyst/electrode, explaining why the solid catalyst is effective in oxidizing solid Li2O2 without losing contact.
Development of oral‐fluid‐impervious and fracture‐resistant silver–poly(methyl methacrylate) nanoformulations for intra‐oral/extra‐oral rehabilitation
Authors: Gopalakrishnan Sandhya , Raj Indu , Mathew T. Aby , Abraham Jiji , Maria Hanna. J. , Mozetič Miran , Thomas Sabu , Kalarikkal Nandakumar
Published: March 2019

Poly(methyl methacrylate) (PMMA) based dental prosthetic materials have an inferior transverse resistance value and a high water‐retention capacity. These drawbacks cause frequent prosthesis fractures both inside and outside the mouth, which require the remaking or repair of the prosthesis. The mechanical and physical durability of the polymer matrix can be improved by the incorporation of a multifunctional filler. In this study, we focused on the reinforcing effect of silver nanoparticles (AgNPs) on the flexural properties of PMMA. Apart from that, the transport behavior of water and saliva through this composite matrix was also studied extensively. Morphological analyses with scanning electron microscopy (SEM) and atomic force microscopy imaging techniques confirmed the uniform distribution of nanoparticles in the matrix with an increased surface roughness proportionate to the amount of AgNPs. The flexural strength and modulus were enhanced by the addition of up to 5 wt % AgNPs (p < 0.05); we also observed a significant increase in the fracture resistance. The SEM micrographs of the fractured ends of AgNP‐reinforced groups had smaller cracks compared to the large multidirectional cracks in the unreinforced group. The diffusion of oral fluid through the composite was investigated in detail as a function of the AgNP content, the nature of the solvent (water or saliva), and the temperature (5, 28, 37, or 60°C). The water and saliva uptake, diffusion, sorption, and permeation constants were investigated and were found to decrease with increasing AgNP loading. The transport properties could have been related to the morphology of the nanocomposites and followed the Korsmeyer–Peppas model. At high concentrations, the AgNPs formed a local filler–filler network in the polymer matrix. This network hindered the transport of water and saliva through the polymer. The outcome deduced from this study confirmed that the reinforced nanocomposites improved the durability of the denture base and could be an effective replacement for the conventional denture base. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47669.