bluuebunny/crossref_metadata_2025 huggingface dataset:
Twinkling artifact in differential diagnosis of mammary calcinates
Authors: Gromov A. I. , Komin Yu. A. , Mozerov S. A. , Krasnickaya S. K.
Published: September 2021

Research goal: evaluation of the possibility of using an ultrasound twinkling artifact in the detection of breast calcifications as a diagnostic criterion for breast cancer.

Material and methods. A targeted ultrasound study using color Doppler mapping was performed to determine the presence of a twinkling artifact in 112 patients who had calcifications detected during X-ray mammography.

Results. According to the ultrasound examination, the twinkling artifact was registered only in 10 of the 112 women examined. A pronounced twinkling artifact was registered in 3 patients, the calcifications were single, mainly lobular, with a size of more than 1 mm. In 5 cases, the flicker artifact was determined to be of moderate severity, and the distribution pattern was also dominated by single ones, more than 1 mm. Two patients with grouped calcinates had a weakly expressed twinkling artifact, their dimensions were also more than 1 mm.

Conclusion. The data obtained indicate that the Doppler twinkling artifact in the mammary glands occurs only in macrocalcinates (larger than 1 mm) and, mainly, single ones. Modern ultrasound devices do not allow registering a twinkling artifact in calcinates smaller than 1 mm, which indicates that it is impossible to use Doppler color coding to detect microcalcinates as a predictor of breast cancer.
New radiation techniques in controlling bone regeneration in fractures
Authors: Tukhbatullin M. G. , Kormilina A. R. , Pasynkov D. V. , Kurotchkin S. V.
Published: September 2021

Objective: comparative study of the possibilities of radiation methods in control of bone regeneration in fractures.

Materials and methods. A study of bone calluse formation was conducted in 116 patients with broken tubular bones of the upper and lower limbs from the first day of the fracture to the complete consolidation of the fractures. In X-rays and CT determined the mineral density of bone calluses, with ultrasonic elastography shear wave and compression elastography determined the rigidity of bone calluses in kPa.

Results. X-ray bone corn was determined at the end of the second – the beginning of the third stage of bone calluse formation. On CT bone corn density (in the HU), its structure and the condition of bone breaks were determined in some patients in all stages of bone regenerate formation. In ultrasound examination in the multiparametric mode studied the rigidity, structure and vascularization of bone calluses, the correct comparison of bone breaks from the first day of the fracture to their complete fusion.

Conclusions. Ultrasonic studies in multiparametric mode can be used to control bone regeneration in fractures. Ultrasonic elastography shear wave, in determining the rigidity of bone calluse, in sensitivity and specificity exceeds the indicators of ultrasonic compression elastography at all stages of bone regenerate formation.
Concomitant intraductal papillary mucinous neoplasm (IPMN) and neuroendocrine tumor (NET) of pancreas
Authors: Romanova K. A. , Lukianchenko A. B. , Medvedeva B. M. , Polyakov A. N.
Published: September 2021

We present a rare clinical case of a 66-year-old woman who had two different synchronuos tumors of pancreas: intraductal papillary mucinous neoplasm (IPMN) and neuroendocrine cancer. The preoperative CT/MRI diagnosis was not too difficult, because of the typical presentations, but the combination of features was very unusual. A morphological examination after surgical operation followed by fine-needle biopsy confirmed the preoperative diagnosis of combined the two different tumors.
Experience with a mobile CT scanner as part of an airmobile hospital of the Ministry of Emergencies of Russia in the field conditions of the Far North to combat the outbreak of a new coronavirus infection
Authors: Aleksanin S. S. , Krotova O. A. , Rybnikov V. Yu. , Nesterenko N. V. , Garbar N. M.
Published: September 2021

Background. Large-scale construction of industrial and transport facilities is underway in the Far North of Russia. The process involves more than 10,000 shift workers, and there was a Covid19 outbreak in this population. In order to contain the outbreak and prevent the spread of infection in this area the Russian Emergencies Ministry deployed an airmobile hospital.

Purpose. The purpose is to present an experience of work with the mobile CT scanner as part of an airmobile field hospital deployed in the Far North of Russia to combat the Covid-19 outbreak.

Materials and methods. On April 6, 2020, the construction site reported a “zero patient” who sought medical aid; the PCR test showed positive results of coronavirus. In the first half of April, over 300 rotation employees applied for medical care, most of them had a positive PCR test. On April 11, a state of emergency was declared in the construction site and, on April 17, 2020, airmobile hospital started operations. Its mission lasted 54 days. The mobile CT scanner (Brightspeed Elite Mobile, GE) was transported by land. The field hospital closely cooperated with the nearest medical institutions and the regional clinical hospital.

Results. During its work the airmobile hospital examined 1,678 rotational workers and 408 employees of the Ministry of Emergency Situations of the Murmansk region, with 2,086 CT scans performed. The average age of the patients was 37.8 years, men predominated. In 91.2% of patients, fever was the first symptom of the disease. Blood saturation results ranged from 92% to 99%. The degree of lung involvement ranged from CT 0 to CT 4. During the work of the airmobile hospital, COVID-19 was diagnosed in 500 people, including 328 cases of mild form, 98 – moderate, 74 – severe, no mortalities.

Conclusion. A positive experience of application of the mobile CT scanner as part of the AMH field hospital in unfavorable epidemiological conditions of the Far North of the Russian Federation was obtained. CT plays a key role in early detection of infection, differential diagnosis, and identification of complications. Determination of the severity of the disease based on CT data is crucial for patient routing.
Value of the ultrasound research in the diagnostic of acute strangulated small bowel obstruction
Authors: Shavrina N. V. , Yartsev P. A. , Lebedev A. G. , Levitsky V. D. , Drаyer M. N. , Tsuleiskiri B. T. , Khamidova L. T. , Antonyan S. Zh.
Published: September 2021

Purpose. To identify and evaluate the effectiveness of sonographic signs of intestinal ischemia in patients with strangulated small bowel obstruction.

Materials and methods. For the period 2017–2019, 115 patients with SIO were treated at the N.V. Sklifosovsky Federal Research Institute of Emergency Medicine. There were 64 women (55.6%) and 51 men (44.4%). The mean age was 62 ± 15 years. In all patients, the diagnosis was verified intraoperatively. All patients underwent ultrasound examination of the abdominal cavity in B-mode with the assessment of blood flow of the intestinal wall in the mode of CDI. Patients were divided on the basis of intraoperative data into 2 groups. The first group: 63 (54.8%) patients with signs of ischemia of the strangulated loop of the intestine. The second group consisted of 21 (18.1%) patients in whom intestinal necrosis was detected. The comparison group included 31 (26.7%) patients with adhesive small bowel obstruction without intestinal strangulation.

Results. The most informative signs of ischemia of the strangulated intestine of the loop are infiltrative changes of its mesentery. In the second and third groups 9 (14.3%) and 12 (57.1%) participants, respectively, showed severity of intestinal ischemia, compared with 1 participant (3.2%) in the first group. The next informative criterion is the thickening of more than 0.4 cm and edema of the intestinal wall. In the second and third groups 30 (47.6%) and 14 (66.6%), in the comparison group 4 (12.9%), akinesis of the strangulated loop and paresis of the entire small intestine also directly correlated with intestinal ischemia. The absence of differentiation of intestinal wall layers occurs in (23.8%), the absence of blood flow in the intestinal wall in the CDI mode (19%), gas inclusions in the intestinal wall (4.3%).

Conclusion. The assessment of sonographic symptoms allows to diagnose the presence of ischemic changes in the intestinal wall and perform surgery before the development of necrosis in the early period. In cases of late admission of the patient to the hospital, with the onset of intestinal necrosis and the associated erased clinical picture, ultrasound allows to establish indications for surgery before the development of peritonitis.
Ulltra-low-dose computed tomography in the diagnosis of diseases of the paranasal sinuses in pediatric population: literature review
Authors: Laipan A. Sh. , Morozov S. P. , Nizovtsova L. A. , Blokhin I. A. , Gombolevsky V. A.
Published: September 2021

Background. Sinonasal diseases are widespread in childhood. Radiological studies, including computer tomography, are an optimal and effective method of diagnosis. The child's body is more sensitive to radiation exposure than adults. The threshold of exposure, which may induce internal organs injury in children, requires a precise selection of the radiological method with minimal radiation dose. There is currently no unified position in the professional community on the appropriateness of the use of ultra-low-dose computed tomography in pediatrics.

We reviewed the data on the appropriateness and effectiveness of paranasal low-dose computed tomography in pediatrics.

Materials. 57 domestic and foreign publications, for the period from January 2001 to November 2019. In order to achieve the objective, we analyzed relevant domestic and foreign publications in scientific libraries e-LIBRARY, PubMed, Google Scholar per the keywords: “low-dose CT”, “children”, “paranasal sinus”, “pediatric”, “diagnosis”, “children”, “low-dose computed tomography”, “sinusitis”, “paranasal sinuses”.

Results. The analysis of the available literature allowed summarizing the current data on pediatric paranasal disease diagnostics and the use of computed tomography, as well as to identify possible options for reducing radiation dose.

Conclusions. Conducting many radiological examinations in a child leads to the risk of cancer. However, these examinations are an effective way to diagnose paranasal diseases, and a CT scan is the “gold standard”. The actual task is to develop a CT technique with reduced radiation exposure without compromising image quality. The need to review and optimize the standard protocols of radiological studies to determine the efficacy and feasibility of studies with minimal radiation exposure to children is justified.
Сomputed tomography for fractures of the ankle joint in children
Authors: Serova N. Yu. , Akhadov T. A. , Mel'nikov I. A. , Bozhko O. V. , Kostikova T. D. , Semenova N. A. , Dmitrenko D. M. , Nikishov S. O. , Manzhurtsev A. V. , Ublinskiy M. V. , Khusainova D. N.
Published: September 2021

Introduction. Correct diagnosis is based on visualization and knowledge of fracture patterns characteristic of children. Traditionally, radiography is used to visualize bone damage. In fractures in children due to the high risk of damage to the germinal zones, it is necessary to have clear and reliable information about their condition, which cannot always be obtained by x-ray method. For these purposes and the requirements of modern surgery, CT is used, which with high diagnostic accuracy clarifies the degree of displacement of fragments, present a qualitative characteristic of fractures and reveals associated damage.

Purpose: to show the capabilities of computed tomography in diagnosis of fractures of ankle joint.

Materials and methods. The results of computed tomography (CT) are presented in 226 children and adolescents aged 3 to 17 years. There were 142 boys (62.8%), 84 girls (37.2%). Scanning was carried out depending on the weight and age of the patient with the minimum indicators of kV and mAS, a slice thickness of 0.75 mm.

Results. Average time for seeking medical help was 32 hours from moment of injury. Among causes of injury in the first place was domestic injury (73, 8%), followed by sports injury (22, 3%) and traffic accidents (3.9%). Right-sided ankle fractures were found in 147 (65.1%), left-sided – in 79 (34.9%) children. The most common types of tibial fractures were metaepiphysiolysis of the distal tibia and metaepiphysiolysis of the distal tibia of both tibia, which together accounted for 67.7% (n = 153) of all tibial fractures.

Conclusion. Computed tomography should be performed in all cases of intraarticular fractures of the ankle joint. It is especially important for evaluating fractures with damage to germ zones. Scanning must be carried out with a cutting thickness of not more than 1 mm. CT with multi-planar data reformatting is an important factor in determining whether a patient needs surgical treatment. As a result of CT, a final diagnosis was established and a decision was made on treatment tactics.
Ewing's extra skeletal sarcoma of the pelvis (Literature review and clinical case)
Authors: Kontorovich D. S. , Pronkina E. V. , Nudnov N. V.
Published: September 2021

Timely diagnosis of Ewing's sarcoma is an actual problem of our time, since this tumor is characterized by fairly rapid growth and aggressive course. According to literature data, it ranks 2-nd among all bone tumors, second only to osteosarcoma, and is 8.64%. This review article discusses the possibilities of radiation research methods in the early diagnosis of this tumor on the example a clinical observation of the extra-skeletal form of Ewing's sarcoma.
New score scale for assessing the risk of establishing chronic heart failure with preserved ejection fraction
Authors: Zherko O. M. , Shkrebneva E. I.
Published: September 2021

The aim of the study was to develop a score scale for assessing the high risk of establishing chronic heart failure with preserved ejection fraction (HFpEF), based on echocardiography (EchoCG) evidence.

Materials and methods. A clinical and instrumental study of 175 patients, of which 108 (61.7%) women and 67 (38.3%) men, aged 71 [64; 78] years was performed in the 1st City Clinical Hospital in Minsk in 2017–2018. In order to validate the score scale for assessing the risk of HFpEF establishment in 2019–2020 a reproductive clinical and instrumental study of 129 patients was performed at the Minsk Scientific and Practical Center for Surgery, Transplantology and Hematology, of which 55 (42.6%) were men and 74 (57.4%) women aged 65 [58; 70] years. Inclusion criteria: sinus rhythm, essential arterial hypertension, chronic coronary heart disease: atherosclerotic heart disease, past myocardial infarction of left ventricle (LV), after which at least six months have passed, necessary to stabilize the structural and functional parameters of the LV, HFpEF, informed consent of the patient. Exclusion criteria: primary mitral regurgitation, mitral stenosis, mitral valve repair or prosthetics, congenital heart defects, acute and chronic diseases of the kidneys, lungs. EchoCG was performed on ultrasound machines Siemens Acuson S1000 (Germany) and Vivid E9 (GE Healthcare, USA).

Results. The developed scale for assessing the risk of establishing HFpEF in a patient with sinus rhythm including the criteria: LV diastolic dysfunction type II – 47 points, deceleration time of peak E of the transmitral blood flow DTE ≤171 ms – 25 points, the speed of early diastolic movement of the septal part of the mitral fibrous ring e'septal ≤7 cm/s – 25 points, LV early diastolic filling index E/е'septal >7.72 – 20 points, index of the end-systolic volume of the left atrium >34.3 ml/m2 – 24 points, has high diagnostic reliability (AUC 0.96, sensitivity (S) 96.6%, specificity (Sp) 83.2%) and reproducibility of results in an examination cohort of patients (AUC 0.99, S 98.8%, Sp 98.0%). A total score > 45 indicates a high probability of HFpEF. If the total score is ≤45, it is recommended to perform 2D Speckle Tracking EchoCG. The leading patho-functional mechanisms for the development of HFpEF are a decrease of LV global systolic longitudinal strain GLSAVG > −18.9% (S 94.9%, Sp 98.0%), GLS of the right ventricle (RV) > −19.9% (S 76.5%, Sp 88.5%), mechanical dispersion with LV mechanical dispersion index > 54.69 ms (S 70.7%, Sp 90.2%), RV mechanical dispersion index > 50.29 msec (S 78.1%, Sp 73.9%) and ventricular dyssynergy with LV global post systolic index >5.59% (S 82.6%, Sp 87.5%), RV global post systolic index > 2.17% (S 84.5%, Sp 69.9%).

Conclusions. The use of the developed scale will improve the efficiency of ultrasound imaging of HFpEF.
Brain perfusion in type 1 diabetes and cognitive dysfunction
Authors: Samoilova Yu. G. , Matveeva M. V. , Tonkikh O. S. , Fimushkina N. Yu.
Published: September 2021

The purpose. To evaluate brain microcirculation using contrast and non-contrast magnetic resonance perfusion in patients with type 1 diabetes and cognitive dysfunction.

Material and methods. The study complies with generally accepted ethical rules. The study included 45 patients with type 1 diabetes and cognitive dysfunction and 20 patients without. Every patient included in the study was continuously monitoring glycemia with evaluation of variability coefficients. MRI was performed using a magnetic resonance imaging scanner Signa Creator “E”, GE Healthcare, 1.5 Tl, China: methods – dynamic contrast (“Gadovist”, w/w, bolusno, 5 ml) and arterial spin marks. SPSS Statistic software package was used for statistical analysis.

Results. Blood flow decreased in patients with type 1 type and cognitive dysfunction in the areas of white and gray matter of frontal, occipital and temporal lobes, and shells (p ≤ 0.05). According to perfusion data, hyperglycemia and the following glycemic variability indices have the greatest influence on cortical structures: glycemic index of prolonged glycemia increase, risk of hyperglycemia and hypoglycemia, glycemic rate of change, glycemic control quality indicator, and in case of non-contrast glycemic control quality and glycemic rate of change, risks of hypo and hyperglycemia. The main factors of changes in brain microcirculation are episodes of severe hypoglycemia in the anamnesis, duration of the disease, arterial hypertension, high cholesterol levels. No separate markers for the evaluation of cognitive disturbances in type 1 diabetes were revealed.

Conclusions. The basis of microcirculatory brain disorders in type 1 diabetes is the level of HbA1c and variability of glycemia as well as acute complications, duration of diabetes and associated conditions (arterial hypertension and hypercholesterolemia). The most important data were obtained during contrast perfusion.
Quantification of SPECT with 99mTc-technetryl and of contrast-enhanced MRI scans in survival prognosis of patients with glial brain tumors after combined chemo – radiation treatment
Authors: Babikov V. Yu. , Udut V. V. , Usova A. V. , Lishmanov Yu. B. , Vesnina Zh. V. , Chirikov A. S. , Ussov W. Yu.
Published: September 2021

Purpose of study. The possibility of simultaneous and combined use of magnetic resonance imaging (MRI) with paramagnetic contrast enhancement (CE-MRI) and single-photon emission computed tomography (SPECT) with 99mTc-MIBI in assessing the prognosis in patients with glial brain tumors after complex chemo – and radiotherapy treatment was studied.

Material and methods. Contrast-enhanced MRI of the brain and SPECT with 99mTc-Technetril were performed in 19 patients who were observed after complex chemoradiotherapy of brain tumors (gliomas of grade 3 and 4). The treatment included remote gamma irradiation and chemotherapy with temozolomide. The radiation dose was 60 Gy (30 fractions of 2 Gy × 1 once a day). The drug Temodal was prescribed in a single dose of 75 mg/sq. m. (120–140 mg) an hour before gamma therapy for up to 40 days (in a total dose of 5000–5900 mg) and in the post – radiation period according to the scheme – 6 courses of the drug for 5 days every 23 days in a single dose of 200 mg/sq.m. (280–400 mg). The total dose of Temodal for 1 course was 1400–2000 mg. In everybody, after the study, the time period of subsequent survival of patients was registered from to the primary health care data.

Results. The survival time was over 20 months in case of patients after surgical removal of glial tumor and with subsequent adjuvant chemotherapy if simultaneous low values of “Tumor-to Normal Tissue” index for both 99mTc-Technetryl SPECT and CE-MRI were met, i.e. if < 1,15 for 99mTc-Technetryl SPECT and < 1,19 for CE-MRI. If index “Tumor-to Normal Tissue” was over > 1,25 99mTc-Technetryl SPECT and > 1,35 for CE-MRI then the survival time was below one year. If the “Tumor-to Normal Tissue”ratio on 99mTc-Technetryl SPECT scan was in benefit ranges whereas the on CE-MRI kept itself in high pathologic ranges the survival time was also over 19 months.

Conclusion. Thus, the concomitant quantification and fusion of uptake of 99mTc-Technetryl and paramagnetic contrast agents on SPECT and MRI scans provides prognostic data on survival of patients and is worth routine use for therapy control.
Modern concepts of the prevalence, pathomorphology and diagnosis of granulomatosis with polyangiitis with pulmonary involvement (literature review)
Authors: Safonova T. D. , Sheikh Zh. V.
Published: September 2021

Granulomatosis with polyangiitis (GPA) (Wegener's granulomatosis) is a rare systemic autoimmune disease from the group of vasculitis associated with anti-neutrophil cytoplasmic antibodies (ANCAs). GPA is proceeding with granulomatous inflammation, mainly of the upper and lower respiratory tract and low-immune necrotizing vasculitis that affects small- and medium-size vessels in lungs, kidneys, skin. The disease is an extremely rare long-term systemic disorder, is rarely the object of research, the literature data are few and unsystematic.

Purpose. The purpose of the literature review was to study the published materials, analyze the received information and define tasks for further study of this pathology, primarily from the standpoint of radiation diagnostics.

Materials and methods. The search was carried out in bibliographic databases MedLine, PubMed, if necessary, links to external full-text sources were used. 36 of the most significant publications were selected and worked out, including 8 domestic and 28 foreign. One of the selection criteria for articles was the availability of information about the radiological diagnosis of GPA in them.

Results. Most authors focus their attention on clinical manifestations and features of treatment, not paying sufficient attention to diagnostic methods. Many studies have been carried out on a small sample of patients or are limited to individual clinical observations; there is practically no information on changes in the computed tomographic picture of the lungs in GPA in dynamics. The most complete semiotics of lung damage according to CT data is presented in the article by F. Martinez et al. (2012).

Conclusions. It was found that in case of lung lesions by GPA, nodules, nodes and masses are more often determined, in half of cases – with cavities of decay, less often areas of ground-glass opacity and consolidation are detected. However, at present there is no unified approach to the interpretation of the radiological semiotics of the disease and the determination of the diagnostic value of individual computed tomographic patterns of lung damage. This requires their further detailed study for the correct and timely diagnosis of such a rare, but complex and potentially life-threatening disease.
The application experience of focused ultrasound heart examination in patients with COVID-19 in Prone-position
Authors: Belavina N. I. , Iskhakov R. T. , Barkova I. V. , Ilina E. S. , Kesareva I. A. , Leonenko N. V. , Nikitina T. A. , Pirozhkova I. V. , Sokolova N. V. , Taymaskhanova P. A. , Shishchenko E. A. , Zeltyn-Abramov E. M.
Published: September 2021

Aim of the study. To study the experience of using focused transthoracic echocardiography in patients with COVID-19 in prone position (fEchoPr) in intensive care units (ICU).

Materials and methods. The retrospective observational study included 53 patients (period from 15 April to 31 December 2020). Inclusion criteria: confirmed diagnosis of COVID-19, availability of fEchoPr data, outcome certainty (discharge/death). We analyzed electronic medical records. The fEchoPr was performed in patients in the prone position with a bolster under the left side of the chest and left arm raised (‘swimmer’s position’). We assessed the systolic function of the right ventricle (RV) (tricuspid annular plane systolic excursion (TAPSE)), RV size, RV/LV ratio, systolic function of the left ventricle (LV) (left ventricular outflow tract velocity time integral. (LVOT VTI)), and pulmonary hypertension (PH) (tricuspid regurgitation peak gradient (PGTR). Depending on the results, the patients were divided into 2 groups: informative (+fEchoPr) and non-informative (–fEchoPr) examinations.

Results. There was no statistically significant difference in the groups (+fEcho n = 35 vs –fEcho n = 18) by age (65.6 ± 15.3 vs 60.2 ± 15.8, p > 0.05), by gender (male: 23 (65.7%) vs 14 (77.8%), p > 0.05), by body mass index (31.3 ± 5.3 kg/m 2 vs 29.5 ± 5.4 kg/m2 , p > 0.05), by mechanical ventilation support (24 (68.6%) vs 17 (94.4%), p = 0.074), by NEWS scale indicators (6.9 ± 3.7 vs 8.5 ± 3.5 points), by mortality (82.8% vs 94.4%, p > 0.05). Correlation analysis revealed a moderate inverse relationship between being on mechanical ventilation and the informative value of the study (Spearman's r = −0.30 at p = 0.033). In the +fEchoPr group, the correct measurement of TAPSE and RV/LV was carried out in 100%: a decrease in RV systolic function was recorded in 5 patients (14%), expansion of the RV in 13 patients (37%). Signs of PH were detected in 11 patients (31%), PGTR could not be measured in 10 patients (28%). LV systolic dysfunction was detected in 7 patients (20%). No pathology was detected in 16 patients (46%). One patient was diagnosed with infective endocarditis of native mitral valve, which was later confirmed by autopsy.

Conclusion. In 66% of cases, fEchoPr examinations were informative, especially in terms of assessing the state of the right heart. fEchoPr examination is an affordable, valid and reproducible method to assess and monitor the state of the heart in ICU patients.
From Bonn to Yekaterinburg: chronotope of the modern museum
Authors: Burlina Elena
Published: September 2021

The article is devoted to the comparative analysis of innovative trends in domestic and foreign museums. The analysis is interdisciplinary and methodological in nature. The main purpose of the article is to show examples of fundamental changes and the communicative nature of museum forms, dictated by the massization of museums, which changed the quantitative and qualitative composition of the public. According to the author, the museum includes directing and design necessary for communication with the mass audience. In this aspect, the article analyzes the exposition principles of two museums located in different countries. The philosophical foundations of one of the most authoritative museum centers in Europe: the "House of German History" in Bonn are presented in the most detailed way. Noting the integrity of the exhibition in the "House of German History", the author identifies several key principles of the museum exhibition: including:"museum drama", "path", "local space" (chronotope). These staging techniques are comparable to the "Yeltsin Center": the path through 7 rooms is the basis of the exhibition. "Problem Rooms" and the chronotope "Paths" form a common dramatic concept. The scientific novelty of the article also lies in the substantiation of the connection between the museum's drama and mass character. The flow of visitors could not but influence the choice of techniques that are easily read by the mass audience.
PENJADWALAN PROYEK KONSTRUKSI MENGGUNAKAN CRITICAL PATH METHOD (STUDI KASUS: GEDUNG LABORATORIUM TERPADU FAKULTAS TEKNIK UNIVERSITAS JEMBER)
Authors: Maulidi Ahmad , Arifin Syamsul , Suyoso Hernu
Published: September 2021

Pada era saat ini perkembangan pembangunan konstruksi sangat perlu dilakukan dengan menerapkannya pelaksanaan yang berkualitas, hal tersebut dapat dilakukan pada pembangunan lanjutan di Gedung Laboratorium Terpadu Fakultas Teknik Universitas Jember, agar mengetahui beberapa pekerjaan yang termasuk ke dalam lintasan kritis serta mengetahui perbandingan antara perencanaan penjadwalan yang dibuat dengan keinginan civitas akademik dalam terselesainya pembangunan tersebut. Metode yang diterapkan pada penelitian ini yaitu metode CPM (Critical Path Method) yang mana metode ini sangat cocok dalam berbagai pekerjaan konstruksi sifatnya secara empiris. Dari hasil penelitian ini disimpulkan bahwa penjadwalan dengan menggunakan metode CPM terdapat beberapa pekerjaan yang termasuk lintasan kritis yaitu: pada pekerjaan persiapan, pekerjaan pasangan, pekerjaan beton, pekerjaan plesteran dan benangan, pekerjaan sound system, alat pemadam kebakaran, pekerjaan sanitair dan sanitasi, instalasi air bersih, instalasi air kotor, instalasi springkler dan hydran atap, pekerjaan listrik, instalasi penangkal petir, dan pada perhitungan total durasi normal dengan menggunak metode CPM didapatkan hasil terselesainya proyek selama 123 hari atau 6 bulan, sedangkan rata-rata keinginan civitas akademik selama 6 bulan 18 hari.
Estrategias de neuromarketing visual en dos centros comerciales de la ciudad de Cúcuta, Colombia
Authors: Avendaño Castro William Rodrigo , Luna Pereira Henry Orlando , Rueda Vera Gerson
Published: September 2021

Desde hace un par de décadas, se ha venido posicionando la neurociencia como espacio de investigación transversal a múltiples disciplinas y ciencias. Con sus aportes, genera nuevas discusiones al interior de la educación, la psicología, y claro está, el marketing. El neuromarketing es un campo de estudio joven que hasta ahora viene delimitándose. En Google Scholar se registran tan solo 21 mil resultados de estudios relacionados con esta temática. En este artículo se busca describir las prácticas de neuromarketing visual presentes en dos centros comerciales de la ciudad de Cúcuta (Colombia). Se trata de un estudio con enfoque cuantitativo con diseño no experimental – transversal de nivel descriptivo en el que se aplicaron como instrumentos una guía de observación y un cuestionario. El primero fue aplicado a 220 unidades de estudio (establecimientos comerciales) y el segundo a 216 clientes visitantes. Aunque no se tiene certeza sobre la aplicación consciente de estrategias y principios de neuromarketing por parte de los propietarios de los establecimientos, los resultados muestran que los clientes experimentan emociones positivas (alegría, tranquilidad, euforia y afectividad) y elaboran conceptos positivos sobre los establecimientos (agradable y confortable), afectando su decisión de compra (50%) y de volver al lugar (90% al 100%). Se concluye que el marketing visual de los establecimientos analizados caracterizados por el uso de luces cálidas y frías, uso moderado de imágenes, exhibición predominante de productos y su diversidad, poca visualización de ofertas, es efectivo sobre las emociones, conceptos y decisiones de los compradores y clientes.
Protection to thermal impact of solar radiation: evaluation of selected reflective fabrics
Authors: Teunissen Lennart , Plaude Linda , Jansen Kaspar
Published: September 2021

Prolonged exposure to solar radiation can cause considerable heat stress. The application of reflective materials in garments or sunscreens is generally considered as an appropriate protective strategy. In this study, we aimed to compare a range of reflective and control fabrics on their ability to reduce the thermal impact of solar radiation. We evaluated 16 reflective and 5 control fabrics, varying in applicability for garments and/or sunscreens. Transmission of ultraviolet, visible light and infrared radiation was studied using artificial solar light. Thermal impact reduction was first studied using artificial infrared light and secondly using natural sunlight, measuring temperature right at the back and 10 cm behind the fabric after a 10-minute exposure. Most samples showed comparably low radiation transmission (<10%). However, substantially higher transmission was observed in perforated and mesh-like reflective fabrics, as well as light-colored controls and coldblack® treated fabric. This resulted in larger temperature increases at 10 cm behind the fabric (+1-4°C in sunlight). Contact temperature at the back of the black fabrics ended up higher than at the back of the reflective and white control fabrics (T: 5-10°C in sunlight), the latter two showing minor mutual differences (T<3°C). In conclusion, the reflective fabrics (excluding perforated, mesh and coldblack®) showed minor mutual differences, lower heat absorption than the black control fabrics and lower heat transmission than the white ones. The results suggest that reflective or white fabrics are preferable for most garment applications, while reflective or possibly black fabrics are preferable for sunscreen applications.
Distal Radial Artery Ligation for Dialysis Access Steal Syndrome
Authors: Fung David , Abdulrehman Yaasin
Published: September 2021

Renal replacement therapy is the definitive treatment for end stage renal disease apart from transplant. Steal syndrome, which can lead to distal limb ischemia, is a rare but serious complication in patients who undergo hemodialysis with an arteriovenous fistula. We present a case of a 48-year-old female with limited options for dialysis access who presented with symptoms of steal syndrome. Given the need to keep her current fistula, we opted to treat her with distal radial artery ligation. This case report summarizes the various surgical techniques available for treating dialysis access-associated steal syndrome and why distal radial artery ligation should be considered a viable management strategy, especially in the context of our patient.
Effects of relative humidity on ethanol vapour releases from hydrophilic filmbased sachet in active food packaging
Authors: Kampawong H. , Utto W. , Pruthtikul R.
Published: September 2021

Active food package incorporating an ethanol vapour-controlled release sachet has been
known for its efficacies to delay microbial proliferation in fresh fruit and vegetable. High
humidity inside the package could be utilized as a stimulus for conditional releases as a
means to stabilize the sachet prior to being used. The present research was undertaken to
investigate the effects of relative humidity on ethanol vapour release from the hydrophilic
film-based sachet. The prototype 4-side sealed sachets were made of either ethylene vinyl
acetate (EVA) or laminated film comprising EVA and Nylon/PE (designated as ENP). A
gas chromatogram equipped with a flame-ionized detector (FID-GC) was employed to
analyze ethanol vapour concentration levels released from both sachet types and
accumulated in headspaces of sealed glass beakers having different relative humidity (RH)
levels. For a given RH level, the concentrations in the headspaces containing the ENPbased sachets were lower than those containing the EVA-based sachets. Delays of ethanol
vapour release up to 24 h were observed in the ENP-based sachet system, whilst these did
not occur among EVA-based sachets. Both sachets could release ethanol vapour with
faster rates and subsequently higher concentrations accumulated at the very high relative
humidity level (90-99% RH), compared to lower RH levels (60-89% RH). However, the
release rates and concentration levels accumulated in 60-75% RH were not different from
those in 80-89% RH. Extents of water vapour uptake by films were relatively small when
the films were kept at the lower RH levels, but these became exponentially increased
when the RH levels were ≥90%RH. Experimental data on water vapour uptakes were well
predicted by an exponential model (R2
0.92-0.99; and root mean square of errors (RMSE)
0.004-0.054). Overall, experiment findings indicate that the ENP film caused delayed
ethanol vapour releases from the sachet. The relative humidity levels had significant
effects on the releases from hydrophilic film-based sachets
Optimizing the tray dryer temperature and time of white corn flour culture
Authors: Hunaefi D. , R. Rahmawati , Saputra D. , Maulani R.R. , Muhandri T.
Published: September 2021

This research aimed to optimize the tray dryer temperature and time of white corn flour
culture by Response Surface Methodology (RSM). There were two cultures used in this
research, namely Amylolytic Culture (AC) and Complete Culture (CC). AC consisted of
Penicillium citrinum, Aspergillus niger, Acremonium strictum, and Candida famata, while
CC consisted of Penicillium chrysogenum, Penicillium citrinum, Aspergillus niger,
Rhizopus stolonifer, Rhizopus oryzae, Fusarium oxysporum, Acremonium strictum,
Candida famata, Kodamaea ohmeri and Candida krusei/incospicua. The independent
variables in this study were drying temperature and time, where the quality indicators used
were total viability of mold and yeast, water content, water activity, and pH. This research
used a factor response surface methodology. Data were analyzed by ANOVA with an α
level of 95%. The result of this research showed that the optimum drying process for AC
starter was 40°C for 10 hrs, with characteristic response viability 8.8×107 CFU/g, water
activity 0.43, water content 8.90%, and pH 4.05. CC starter showed an optimum drying
process at 49°C for 4.5 hrs, with characteristic response viability 4.9×107 CFU/g, water
activity 0.49, water content 7.02%, and pH 3.95. The optimum tray dryer temperatures
and times were achieved for AC and CC starters.
Dietary supplement use and knowledge among students from a health science
faculty in a Turkish University
Authors: Erzurum Alim N. , Karakaya R.E. , Turk Fidan O.P.
Published: September 2021

Dietary supplements are concentrated sources of nutrients used as an addition to a normal
diet with a nutritional or physiological effect. In this cross-sectional study, it was aimed to
determine the factors of dietary supplement use, the related knowledge, and their
relationship with supplement use in a faculty of health sciences among university students.
This cross-sectional study was carried out with 333 voluntary university students from
Ankara Yıldırım Beyazıt University, the Faculty of Health Sciences. A questionnaire form
consisting of 5 sections was applied to the students by face-to-face interview method. The
most remarked purposes of supplement use were to improve health (44.2%) and boost
immunity (22.1%). There was no difference between age, gender, department, coexistent
disease, tobacco smoking and alcohol consumption in terms of dietary supplement use (p
= 0.611, p = 0.720, p = 0.682, p = 0.062, p = 0.491, and p = 0.658, respectively). No
significant difference was observed between physical activity status, the duration of
physical activity, dieting status, the source of diet program, daily frequency of main meals
and snacks, body mass index (BMI) groups, and the reason for meal skipping among
students according to dietary supplement use (p = 0.180, p = 0.205, p = 0.686, p = 0.226, p
= 0.533, p = 0.449, p = 0.976, and p = 0.758, respectively). There was not any significant
difference between physical activity status, the duration of physical activity, dietary
supplement use, dieting status, the frequency of main meals and snacks and BMI in terms
of total knowledge score of dietary supplements (p = 0.245, p = 0.713, p = 0.278, p =
0.067, p = 0.466, p = 0.647, and p = 0.851, respectively). Scientific attention should be
paid to the use of dietary supplements. Arbitrary approaches can lead to unwanted
interactions. Therefore, in order for health and government policies to be established
related to dietary supplements, it is essential to determine the factors related to their use.
The effects of heat treatment and modified atmosphere packaging on the storage
stability of noni (Morinda citrifolia L.) fruit
Authors: Z. Nuraisyah , M.A. Ezzat , S. Radhiah , L. Prima
Published: September 2021

Noni fruit (Morinda citrifolia L.) is a herbal remedy known for its therapeutic and
nutritional value. However, it is perishable and subject to rapid postharvest deterioration
that shortens its shelf life during storage. Therefore, this study investigated whether hot
water dipping (HWD; 60°C, 1 min) and Modified Atmosphere Packaging (MAP; carbon
dioxide and nitrogen) could prolong noni's shelf life. The noni physicochemical properties
such as colour, firmness, weight loss, total soluble solids, titratable acidity and scopoletin
content were monitored during six days of storage at room temperature. During storage,
the noni skin colour changed from greenish-yellow to translucent yellow, but HWD
storage was stopped on day 2 due to black spots' formation. The reduction of weight loss
was significantly lowest in both MAP treatments (1.39–1.74%). Among these, N2-based
had a significantly higher scopoletin content (27.12 mg/g) and firmness (0.8 N) compared
to CO2-based, suggesting that it was the most effective postharvest treatment to efficiently
prolong the shelf life and retained the quality and stability of noni during storage.
Growing Out before Out Growing - Flexible Housing for New Zealand
Authors:   , Playle Liam
Published: September 2021

Housing in New Zealand often makes its way into the headlines, with issues such as demand, shortfall and affordability dominating the news. There is, however, one issue that is prevalent but is barely addressed. This is the issue of suitability. Many New Zealanders are living in houses that are inappropriate for their needs. This problem exists along a spectrum and affects everyone. The truth is, at some stage in our lives, we may find ourselves living in a house that is either too big or too small.

The purpose of this research is to investigate whether flexible housing is a feasible solution to address the problem of suitability. This is achieved through the design of a modular prefabricated construction system and the design of a connection which facilitates this flexibility. This system consists of a prefabricated modular panel system and a designed connection, which allows the physical fabric of the house to be altered, so it can increase or decrease in size to suit its occupants’.

The feasibility of this system has been evaluated through the construction of a full-scale prototype and the design of a house to test its flexible abilities. Fundamentally, this research should hopefully change the way we think about constructing homes in New Zealand. An inversion of the current process and will see home construction suited to the occupant at the very beginning, middle and end of their lifespan instead of just a potentially small period. This solution could also bring about change in the way we finance our homes allowing for incremental change and incremental investment over the lifetime of the building.
Our Place: A Cross Cultural Approach to Heritage Conservation
Authors:   , Ermenyi Tatiana
Published: September 2021

The remarkable increase in migration across the world is one of the effects of globalisation. Its by-product is the materialisation of Cross Culture People (Pollock & Van Reken, 1999, p. 6). Research has revealed that in the process of migration, Cross Culture People may struggle to form a strong sense of identity and belonging as a result of experiencing a number of cultures throughout their lives.

Research has shown that, the heritage architecture of the host nation can act as a setting to help ground Cross Culture People in their new surroundings and form a collective identity. This thesis will explore such opportunity and as a result will ultimately propose a new building typology for heritage architecture.

The outcome of this thesis is a two-part design framework: The first part considers a careful site selection that helps select the right heritage building for the programme. The second, a design tactic framework which focuses on cultural wellbeing through cultural vitality and vibrancy. The design tactics emerging from this research develops solutions such as using unique public places that are adaptable, personal and evokes a transcultural narrative.

The framework is tested and developed to include theories such as Third Place and Biophilic Design and implemented towards a final design of a ‘mixed used’ public building. The final iteration reveals the need to consider the intangible aspects of heritage that help construct cross cultural identity and enhances a sense of belonging.
Investigating the Impact of Leadership Development on the Formation of Public Sector Leader Identities.
Authors:   , Jog Samradhni
Published: September 2021

This dissertation examines the role of leadership development in forming a leader identity in public sector leaders. It investigates the perceived impacts on public sector leaders attending a leadership development program resulting in identity work practices. The main focus of this case study was the leadership development experiences and interpretations of public sector leaders. A leadership development program called Leadership in Practice delivered by New Zealand's Te Kawa Mataaho Public Service Commission to senior public sector leaders was used as a background and context for grounding my investigations. Research participants comprised 16 senior leaders from across the New Zealand public sector. This research was conducted using semi-structured interviews as the qualitative research method. The research data was collected, coded, analysed and thematically grouped using interpretive interactionism. By taking an interpretive approach, I give voice to the experiences and interpretations of these research participants.

Leadership development and its various forms of interpretations in organisational studies continue to command attention about senior officials' leadership performance outcomes in leadership roles across both the public and private sectors. However, empirical research exploring the perceived impacts of this organizationally driven socialisation process on leaders remains sparse across mainstream leadership research, particularly within public sector leadership research.

This study follows the tradition of organisation studies which theorise identity formation as a continuous process of becoming rather than being. It presents a view of leader identity formation as a self-regulated process undertaken by public sector leaders over an extended period. It argues that undertaking leadership development training is vital for public sector leaders; however, it becomes more relevant during specific critical periods throughout their career trajectory across the public sector. I contribute to leadership development and broader leadership research by proposing a new framework called 'leader identity formation framework' comprising four distinct phases – Inception, Initiation, Recognition and Rebellion. In conclusion, I offer a range of theoretical and practical implications for leadership development and leader identity research, which could help inform future research in public sector leadership.