bluuebunny/crossref_metadata_2025 huggingface dataset:
Kajian Kelayakan Usaha Selada Sistem Hidroponik Nutrient Film Technique (Studi Kasus Pada RB Farm Cangkringan, Sleman, Yogyakarta)
Authors: Arwiyani Ainur Wahida Sabrin , Puspitaningrum Dwi Aulia , Utami Heni Handri
Published: September 2024

Penelitian ini bertujuan menganalisis kelayakan usaha pada RB Farm ditinjau dari aspek finansial. Metode yang digunakan pada penelitian ini yaitu metode deskriptif kuantitatif dengan pendekatan studi kasus. Metode penentuan responden menggunakan purposive. Macam data yang digunakan pada penelitian ini adalah data primer dan data sekunder dengan wawancara, observasi, studi pustaka dan dokumentasi sebagai metode pengumpulan data. Teknik analisis data yang digunakan adalah Net Present Value (NPV), Modified Internal Rate of Return (MIRR), Discounted Payback Period (DPP) dan analisis sensitivitas. Hasil penelitian menunjukkan RB Farm layak untuk diusahakan ditinjau dari aspek finansial, dengan nilai Net Present Value (NPV) sebesar Rp.271.716.406, nilai Modified Internal Rate of Return (MIRR) 6,45% dan Discounted Payback Period (DPP) yaitu 5 tahun 8 bulan 1 hari.Kata Kunci: Discounted Payback Period (DPP); Kelayakan Usaha; Hidroponik Nutrient Film Technique (NFT), Modified Internal Rate of Return (MIRR); Net Present Value (NPV)
Pengaruh Stres Kerja, Kompetensi dan Lingkungan Kerja terhadap Kinerja Karyawan di Bale Ayu Resto Giwangan Kota Yogyakarta
Authors: Saputra Rizki Adji , Hamidah Siti , Widayanto Budi
Published: September 2024

Tujuan peneIitian adaIah: (1) Mendeskripsikan tingkat stres kerja, kompetensi, Iingkungan kerja dan kinerja karyawan, (2) MenganaIisis pengaruh stres kerja, kompetensi dan Iingkungan kerja terhadap kinerja karyawan. Metode peneIitian yang digunakan adaIah metode deskriptif dengan pendekatan metode kuantitatif. Metode peIaksanaan yang digunakan adaIah metode studi kasus. Cara pengambiIan sampeI dengan SampIing Jenuh (Sensus) dengan jumIah responden sebanyak 39 karyawan BaIe Ayu Resto Giwangan. Data yang digunakan berupa data primer dan data sekunder. Metode anaIisis data menggunakan anaIisis deskriptif dan anaIisis regresi Iinear berganda. HasiI menunjukan bahwa: (1) Stres kerja dan kompetensi termasuk daIam kategorisedang, sedangkan Iingkungan kerja dan kinerja karyawan termasuk daIam kategori baik, (2) Stres kerja berpengaruh negatif terhadap kinerja karyawan, kompetensi dan Iingkungan kerja berpengaruh positif terhadap kinerja karyawan.Kata Kunci : Stres kerja, kompetensi, Iingkungan kerja, kinerja karyawan.
Evaluasi Program Pengembangan Usaha Mikro Kecil dan Menengah Melalui Toko Milik Rakyat di Kabupaten Kulon Progo
Authors: Reswara Ilham Veda , Widayanto Budi , Puspitaningrum Dwi Aulia
Published: September 2024

AbstrakToko Milik Rakyat (Tomira) memiliki tujuan untuk mengembangkan ekonomi masyarakat Kabupaten Kulon Progo melalui kemitraan dengan UMKM dan koperasi. Penelitian ini bertujuan untuk (1) Mengevaluasi program pengembangan UMKM melalui Toko Milik Rakyat menggunakan model CIPP (Context, Input, Process, Product), (2) Menganalisis faktor pendukung dan faktor penghambat dalam pengembangan usaha mikro, kecil dan menengah melalui Toko Milik Rakyat di Kabupaten Kulon Progo. Penelitian ini menggunakan pendekatan kuantitatif dengan jenis penelitian survei. Metode penentuan responden dilakukan secara purposive sampling yaitu pelaku UMKM yang melakukan kemitraan dengan Tomira. Data yang digunakan dalam penelitian adalah data primer berupa data yang diperoleh secara langsung melalui wawancara dan data sekunder berupa data yang telah dimiliki oleh UMKM maupun Toko milik rakyat. Teknik analisis data menggunakan evaluasi program model CIPP dan analisis deskriptif. Hasil penelitan menunjukkan evaluasi program pengembangan UMKM melalui Toko Milik Rakyat di Kabupaten Kulon Progo berupa (1) Evaluasi CIPP program pengembangan UMKM melalui Toko Milik Rakyat termasuk kedalam kategori baik sebesar 77,27% dengan perincian evaluasi context termasuk kategori baik (77,02%), evaluasi input termasuk kategori baik  (77,50%), evaluasi process termasuk kategori baik  (75,71%), dan evaluasi product termasuk kategori baik (78,47%), (2) Faktor pendukung pengembangan UMKM meliputi rak khusus (space display), pelatihan, dan kemudahan sertifikasi. Faktor penghambat pengembangan UMKM meliputi penggunakan sistem titip jual, pemasaran yang masih kurang, dan belum semua Tomira bekerja sama dengan koperasi BTM.Kata kunci: Toko milik rakyat, Pengembangan UMKM, Evaluasi model CIPP
Strategy For Development Of The Kampung Empon-Empon Program In Ngalian Widodomartani Village
Authors: Ulhaq Hanifah Dhiya , Murdiyanto Eko
Published: September 2024

This study aims to Assess the potential and activities that supports the Ngalian Empon-empon Village and also develop strategies needed for the development of the Empon-empon Kampung Program. This research is a descriptive research with a qualitative approach to the type of case study research. The data sources used are primary data and secondary data. Data collection techniques using interview techniques, observation, and documentation. Data validity using source triangulation. Data analysis techniques use interactive models, namely collecting data, reducing data, presenting data as well as drawing conclusions and verification. The result of this research are The potential that supports the Ngalian empon-empon village program includes physical and non-physical potential. Activities that have been carried out in the Empon-empon Village Program include planting empon-empon by utilizing the land in the yard of the house, planting empon-empon in demonstration plots for each RT and making processed empon-empon in the form of simplicia, pure powder, instant or syrup. The strategy needed for the development of the Empon-empon village program is the establishment of the Ngalian Empon-empon education village.
Sonographic Imaging of Anorectal Malformation in a Neonate
Authors: Letourneau Karen
Published: September 2024

Imperforate anus is part of a group of abnormalities referred to as anorectal malformations (ARM). Sonography of the neonate with an imperforate anus can be expanded to include many associated anomalies. This article will guide the sonographer to scan a neonate with ARM.
The Importance of Placental Evaluation in Pregnancy
Authors: Quin Natasha
Published: September 2024

While the placenta receives more evaluation now during the routine anatomical study than it has in the past, there is still a failure to routinely re-evaluate the placenta in third-trimester ultrasounds.

A 33-year-old female, 37W4D pregnant, presented to the clinic per her midwife, with a clinical history of measuring large for dates. Prior imaging was normal and she had no maternal concerns or risk factors. Ultrasound investigation revealed a rather large, lobular, avascular, cystic and inhomogeneous placenta, with all other fetal parameters within the normal range. Subsequent close weekly monitoring revealed fetal stability until the patient reached 40W3D, where ultrasound then revealed possible meconium in the fluid and bowel, and the patient was sent for immediate induction.

Due to the intricate and extensive formation process of the placenta, and its organ-based function, it is subject to a vast array of pathological conditions as well as physiological changes, and as such, it is important that the sonographer be familiar with all processes.

Third-trimester fetal well-being ultrasound focuses heavily on biophysical profile scores and umbilical artery Doppler, it is critical that the sonographer - re-interrogates placental status routinely, in order to reduce maternal morbidity and mortality.
The Evolving Efficacy of Transthoracic Echocardiography and Ultrasound Enhancing Agents (UEAs) when Characterizing Cardiac Masses
Authors: McClure Andrew , Thampinathan Babitha
Published: September 2024

Between mid-2016 and early 2017, a series of transthoracic echocardiograms augmented by ultrasound enhancing agents (UAEs) were performed on a 59-year-old man after he was referred for known mobile echo densities within the right ventricle (RV), fevers, ongoing fatigue, and progressive exertional dyspnea. He had a history of a few small pulmonary embolisms and acute kidney injury. The initial echocardiogram showed a large mass within the RV cavity both before and following the administration of a UAE. It occupied almost the entire RV with mobile components that not only attached to and prolapsed through the tricuspid valve (TV), but also protruded into the right ventricular outflow tract (RVOT) but not across the pulmonary valve (PV). The administration of a UEA demonstrated avascular and vascular components of the mass. Intraoperative pathology diagnosed the mass as a mucinous adenocarcinoma. The mass was removed and the TV was replaced with a bioprosthetic valve. A non-UEA post-surgical transthoracic echocardiogram showed an RV void of any obvious masses. Six months later, despite postoperative radiotherapy and thrombolytic treatments, a follow-up echocardiogram augmented by UEAs showed a large homogenous echodensity with mobile components within the RV. The administration of a UEA demonstrated avascular and vascular components of the mass. Not only does this case study showcase echocardiography as the most easily available, non-invasive, and cost-effective imaging modality for serial assessments of cardiac masses, but also the valuable combination of echocardiography and UEA in distinguishing avascular thrombus and endocarditis from vascular masses when characterizing masses within the heart. We should continue to expand our clinical utility of UEA to better characterize and diagnose cardiac masses within the heart.
Evaluation of 3-D Sonohysterogram Using Ex-Foam Compared to Saline in Diagnosis of Tubal Patency
Authors: Gomaa Hala , Shaeer Eman , Soliman Samuel
Published: September 2024

Both hysterosalpingogram (HSG) and sonohysterogram are used to evaluate the patency of fallopian tubes in an infertility workup. This study aims to evaluate the advantages of using ex-foam compared to agitated saline in sonohysterogram for the diagnosis of tubal patency. A retrospective chart review was done of 167 infertile females seen at New Life Fertility Clinic from January 2014 to May 2017. All of them underwent both an HSG and a 3-D sonohysterography using ex-foam or saline alone. The results of both tests were compared. The outcome measures were sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and overall accuracy. No significant differences were found between the two groups. The overall accuracy of predicting tubal obstruction or patency is better when ex-foam is used compared to saline. Since no significant differences were found in respect to sensitivity, specificity, PPV or NPP, the assessment of tubal patency using ex-foam in D sonohysterogram is not preferred over saline because it is more expensive.
Strain Imaging in Echocardiography Part 1 of 3: An Overview for Sonographers
Authors: Thampinathan Babitha , Ju Na Marcello Seung , Lam Jennifer
Published: September 2024

Echocardiography is considered an important cardiovascular diagnostic test. Its development over recent years has made it an important clinical tool when obtaining information about cardiac structure and function non-invasively.

With the advancements in technology, the evaluation of myocardial function has also evolved. By introducing new imaging techniques such as strain echocardiography, cardiac sonographers with detailed acquisition and analysis can provide highly comprehensive information on left ventricular systolic and diastolic function. As global longitudinal strain (GLS) is already a routine clinical application, our goal is to provide imaging techniques and post-processing tools over a 3-part series for cardiac sonographers using this relatively novel assessment in echocardiography.
Universal Precautions and Infection-Prevention Protocol for Ultrasound Devices and Room during COVID-19
Authors: Marley Nicole , Zahra X Fatima Tul , Teichroeb Raquel
Published: September 2024

Coronavirus (SARS-CoV-2) is a lipid-enveloped virus that is responsible for the wide spread of COVID-19, a severe respiratory illness. Asymptomatic carriers in conjunction with high infection rates increase the risk of transmission. Prevention of infection in sonographers and their patients directly relies on disinfection protocols for both ultrasound machines and the proximate environment. A broad literature review was conducted using search engines and literature databases to find information regarding best Canadian evidence-based practices for proper disinfection. Research shows that low-level disinfectant is considered widely effective against SARS-CoV-2 and should be used to eliminate viral particles on shared surfaces. Whenever possible, single-use disposable items should be used to reduce cross contamination. Developing proper guidelines and educating sonographers will minimize the risk of exposure and improve ultrasound safety during this COVID-19 pandemic.
Assessing the Severity of Aortic Regurgitation Using 3-D Color Doppler Echocardiography
Authors: Thampinathan Babitha , Chow Cindy
Published: September 2024

Transthoracic echocardiography (TTE) is the most common non-invasive diagnostic test that is being used all around the world to assess the heart. With the development of three-dimensional echocardiography over the last decade, accurate, and detailed imaging has allowed for significant improvements in the capability of assessing and understanding cardiac pathology.
A Case of a Tricuspid Valve Papillary Fibroelastoma and Nonspecific Cardiac Symptoms
Authors: Chantler Jody
Published: September 2024

A 66-year-old woman was referred for investigation of syncope, dyspnea, and mild chest discomfort. A transthoracic echocardiogram revealed a mass attached to the atrial aspect of the septal leaflet of the tricuspid valve. Blood cultures were immediately taken to rule out a differential diagnosis of infective endocarditis. The patient underwent successful surgery to excise the mass and preserve the tricuspid apparatus. Surgical pathology confirmed the diagnosis of a papillary fibroelastoma. Surgical intervention should be considered in these cases due to the risk of embolization and the possibility of malignant tumors. This case emphasis the importance of a conducting an echocardiogram and including the cardiac valves.
2D and 3D Imaging and Quantification of Mitral Regurgitation
Authors: Thampanathan Babitha , Michalakos Jason
Published: September 2024

Decisions on techniques used to treat structural heart disease has evolved rapidly, especially in the areas of surgery and noninvasive interventional cardiology. The need for accurate and detailed imaging of these structures has made the roles of cardiac sonographers very dynamic. In order to provide valuable information, which is used in surgical or interventional planning, cardiac sonographers perform a comprehensive transthoracic echocardiogram (TTE) and transesophageal echocardiogram (TEE). However, classifying the severity of regurgitation could be challenging as cardiac structures are three-dimensional (3D), yet most imaging is performed with two-dimensional (2D) modalities. Specifically, in cases where there is a reduction in the functioning of left ventricular (LV), relying only on a single-plane 2D image has limitations and could drastically underestimate the severity of regurgitation. With guidance, newer clinical applications, such as 3D imaging, allows capturing of accurate and reproducible quantitation.
A Case of An Unrepaired Tetralogy of Fallot
Authors: Hodgins Sean
Published: September 2024

In most cases, the combination of a ventricular septal defect (VSD), overriding aorta, right ventricular outflow tract obstruction, and right ventricular hypertrophy (collectively known as tetralogy of Fallot [TOF]) will result in cyanosis unless surgically repaired in early infancy. If left uncorrected, around 75% of patients will not reach the age of 10. However, there are a few reported cases of individuals reaching adulthood without surgical correction of these abnormalities. Interestingly, there are key cardiac adaptations by the body that may occur during the progression of TOF, that may allow for well-balanced hemodynamic control that would otherwise not exist. Ultimately, this will minimize cyanosis by balancing blood flow through the pulmonary and systemic circulations. Some of these cardiac adaptations may include left ventricular hypertrophy, delayed progression of any subpulmonic stenosis, and/or the development of aortopulmonary collaterals. While TOF repair is preferably performed during early infancy, repair in adulthood is possible although it does present with increased risk. Additionally, TOF may present with other cardiac abnormalities including atrial septal defects, other VSDs, right aortic arch, anomalous origination of the coronary arteries, etc. Therefore, it is important to sonographically assess for any other cardiac abnormalities in addition to the main findings especially in cases of adult unrepaired TOF.
Shear Wave Elastography versus Transient Elastography for Assessment of Liver Fibrosis
Authors: Quade Brent , Gilbert Robert , Chauder Sherry
Published: September 2024

To compare the accuracy of shear wave elastography (SWE) and transient elastography (TE) relative to liver biopsy (LB) for the assessment of liver fibrosis. A systematic review was conducted of relevant controlled clinical trials and randomized clinical trials. Quality assessment appraisal of the studies was done using the Quality Assessment of Diagnostic Accuracy Studies tool. Four databases were searched using three key terms (SWE, TE, and liver). Thirty-two studies were identified and after screening, nine remained for inclusion for this review. Sensitivity, specificity, applicability, and the area under receiver operating curve (AUROC) values for both SWE and TE were compared using LB as a gold standard. This review demonstrates the potential for TE or SWE to serve as the gold standard for diagnosis of severe liver fibrosis and cirrhosis. Further studies evaluating the accuracy and reliability of elastography in the diagnosis of earlier stages of liver disease are needed.
Amniotic Fluid Index Versus Single Deepest Pocket Techniques in Evaluation of Oligohydramnios: A Review of Current Literature
Authors: Bui Lisa , Gul Sohny , Mahmoud Iman
Published: September 2024

Amniotic fluid volume (AFV) assessment is an essential part of antenatal fetal screening programs as it reflects fetal well-being. Oligohydramnios is a decline in AFV for gestational age. It is associated with high incidence of fetal morbidity and mortality as well as poor maternal outcomes with increased rate of obstetric intervention. Therefore, accurate estimation of AFV is crucial in both low-as well as high-risk pregnancies. Ultrasound has been described as a practical and accurate method for estimation of AFV. The commonly used techniques are amniotic fluid index (AFI) and single deepest pocket (SDP). In this study, we reviewed the recent literature comparing the two techniques in pregnancies complicated with oligohydramnios. The results indicated that SDP is relatively more accurate, with AFI resulting in overdiagnosis of oligohydramnios. This was associated with more unnecessary obstetric interventions, without significant improvement in maternal and fetal outcomes.
Literature Review on the Impact of COVID-19 on the Mental Health of Diagnostic Imaging Professionals
Authors: Mohamed Ahmed , Routhier Jessica , Thayanithy Archana , Wei Junesa
Published: September 2024

Coronavirus 2019 (COVID-19) and its impact globally is the largest topic of discussion in all healthcare research communities. The purpose of this literature review was to understand the impact of COVID-19 on the mental health of diagnostic imaging professionals. This review identifies literature relevant to diagnostic imaging professionals. Comparison of articles from all over the world, survey results from various methods of data collection, factors causing mental health concerns, clinical problems, and study limitations inform this review to answer the question of whether and how COVID-19 has impacted the mental health of diagnostic imaging professionals. This limited review concludes that COVID-19 has negatively impacted the mental health of diagnostic imaging professionals, but there is little published information on this topic and more research needs to be done.
Severe Septal Hypertrophy in a Young Asymptomatic Female
Authors: Tucker Meghan
Published: September 2024

Hypertrophic cardiomyopathy is the most common cause of death in young people, with a ratio of 1/500 in the general population, whilst focal left ventricular thickening with no family history is rare. This 23-year-old female presented with asymptomatic severe concentric hypertrophy of an unknown source, suspected to be caused by cardiomyopathy. The echocardiogram showed a severely thickened septal and anterolateral wall consistent with non-obstructive hypertrophic cardiomyopathy (HCM); there is no known family history of cardiomyopathies, and upon further investigation of the echocardiographic images, the thickening appeared analogously with a cardiac tumor in the septal wall rather than cardiomyopathy. The differential diagnosis, in this case, was that there was a non-obstructive HCM, but that further imaging would be required for confirmation. This case emphasizes the importance of conducting an echocardiogram on all patients with abnormal electrocardiograms regardless of their symptomology.
IBS: Irritated by Bowel Sonography
Authors: Letourneau Karen , Karlicki Fern , Harrington Chris
Published: September 2024

In this article, we discuss the common bowel pathologies encountered by sonographers. Despite the humorous title, this article demonstrates how sonographers can play a major role in the diagnosis of a variety of bowel pathologies, and it includes scanning tips and common pitfalls. Some of the pathologies that are covered include tumours, inflammatory bowel disease, appendicitis, diverticulitis, intussusception, and hypertrophic pyloric stenosis. We discuss the often-irksome fetal echogenic bowel and the less irritating fetal duodenal atresia. Our emphasis is to encourage sonographers to overcome their “irritation” with bowel sonography.
Sonography of Venous Outflow Obstruction: Not as Simple as It Appears
Authors: Letourneau Karen , Karlicki Fern , McDonald Keith
Published: September 2024

Examination of the deep venous system of a lower extremity may at first blush appear to be helpful in answering the question, is there a clot in the deep veins? When a vein coapts well proximally to distally but has little or no flow, or when there is flow but a lack of respiratory variation, sonographers need to consider the list of possible reasons. Respiratory variation can be subtle, and it is possible to “create” the appearance by having the patient take a deep breath. Even comparison with the unaffected limb can be problematic, if the pathology is more central and affects both legs.

Examination of the deep venous system for deep vein thrombosis is one performed daily in most ultrasound departments and is thought to be a rather simple test when it is negative. It can, however, lead to the discovery of a host of other diseases, such as right-sided heart disease, pelvic masses, pelvic congestion syndrome, renal cell carcinoma, lymphoma, and pancreatic masses. Veins receive much less attention than arteries in the medical literature; however, an understanding of the physiology of veins helps novice and seasoned sonographers alike. Presented in this article are some unexpected, incidental findings that began with a “simple” request to rule out a deep vein thrombosis.
Endovaginal Sonography: Beyond the Uterus and Ovaries
Authors: White Megan
Published: September 2024

Endovaginal sonography has played an integral part in diagnostic imaging. It has proven effective in diagnosing obstetrical and gynecological pathologies. But the use of endovaginal sonography to image non-gynecological organs is relatively unknown. Using the endovaginal approach to image the bowel and the lower urinary system allows for the opportunity to diagnose pathologies that present with non-specific signs and symptoms. To provide optimal patient care, the sonographer performing the examination must be educated on what can be assessed with endovaginal sonography. The aim of this article is to refresh sonographers’ knowledge regarding possible uses of endovaginal ultrasonography beyond the uterus and ovaries.
What Ultrasound Has Taught Us about Coronary Artery Disease
Authors: Fort Stephen
Published: September 2024

Coronary angiography has long been the gold standard in the assessment of coronary artery disease. However, this invasive procedure can only assess coronary artery atherosclerosis if the plaques compromise the (contrast-filled) vessel lumen. Intravascular ultrasound (IVUS) is an invasive imaging modality that, unlike contrast angiography, can visualize the vessel wall, its lumen, and surrounding structures. IVUS has provided unique insights into the pathophysiology of coronary atherosclerosis and the mechanisms and complications of percutaneous coronary intervention.
Are Cardiac Sonographers as Good as Cardiologists at Evaluating Left Ventricular Function on Echocardiograms?
Authors: Jozkow Kimberly , Davidson Robert
Published: September 2024

Sonographers are highly skilled operators of advanced technical equipment. Expectations of performance vary, but many sites require their sonographers not only to optimize image quality but also to perform an initial interpretation of the images acquired. While it has long been assumed that sonographers meet this expectation, there are few formal studies that assess their abilities to do so. This study was developed to assess a small group of cardiac sonographers in their ability to assess systolic function (SF) and ejection fraction (EF) within their normal work setting. Results indicated that sonographers were able to interpret accurately in 94.9% of cases (95% CI 92.5-96.5), with a sensitivity of 91.4% and a specificity of 95.2% when interpreting EF relative to their interpreting cardiologists. Sonographers interpreted the SF accurately in 98.1% of cases (95% CI 96.4-98.9), with a sensitivity of 89.6% and a specificity of 98.6%. This study also demonstrated that the level of experience of the sonographer played little role in the abilities to interpret. The interpretation of technically difficult studies (while few in number) did not appear to inhibit the abilities of the sonographers in comparison with the interpreting physicians.
Sonography of the Long Head of the Biceps Tendon Differentiation of Anechoic Lesions
Authors: Li Tony Y.
Published: September 2024

Anechoic lesions are the commonest findings in the ultrasound examination of the long head of the biceps tendon. Many abnormalities in the bicipital region and other regions of the shoulder can cause a similar anechoic appearance. Therefore, the differentiation of these lesions during ultrasound scanning is critical to providing correct diagnostic evidence. Based on clinical experiences and literature review, the sonographic characteristics of the commonly seen anechoic lesions in the bicipital region (such as sheath effusion, tenosynovitis, peritendinous cyst, biceps tendon rupture, and adjacent subacromial-subdeltoid bursa effusion) are discussed.
Small Intratendinous Cyst in the Long Head of the Biceps Tendon
Authors: Li Tony Y.
Published: September 2024

An intratendinous cyst of the long head of the biceps tendon is a very rare form of cystic lesion. This type of cyst was discovered in a patient along with a partial tear of the supraspinatus tendon, supraspinatus tendinopathy, subacromial-subdeltoid bursitis, and sheath effusion of the long head of the biceps tendon. Degeneration may have been the cause of this intratendinous cyst.
Atypical Baker Cysts
Authors: Li Tony Y.
Published: September 2024

A Baker cyst is an abnormal fluid distention in the gastrocnemiosemimembranosus (G-S) bursa of the popliteal fossa. The anatomy of the bursa decides the possible location and shape of the typical Baker cyst, its minor variants, and some atypical Baker cysts which often need to be differentiated from other lesions in the popliteal fossa. This article reviews the anatomy of the G-S bursa in relation to atypical Baker cysts with a focus on the key sonographic and differentiating features.
3D Imaging in Gynecology
Authors: Davidson Carli , Toderan Christen
Published: September 2024

3D ultrasound imaging is a useful tool in aiding in the diagnosis of gynecological pathology. The similarity to magnetic resonance imaging (MRI) images proves to be beneficial as it can replace the need for MRI studies. There are certain pathologies, namely, congenital uterine malformations that can only be accurately interpreted in the coronal view.
Ontarian Sonographers’ Awareness of Vasa Previa
Authors: Kroesbergen Estelle
Published: September 2024

Objectives:

This research's aim was to determine Ontarian sonographers’ awareness of vasa previa (VP). Particularly, their knowledge of the risk factors for and methods used to exclude the presence of VP. This research also endeavoured to establish if imaging the placental cord insertion site is routine practice in workplaces in Ontario.

Methods:

An on-line survey was disseminated to 1,200 sonographers in Ontario, Canada who were members of the Canadian Society of Diagnostic Medical Sonographers (CSDMS). In total, 213 sonographers participated.

Results:

Analysis of open questions regarding risk factors for VP revealed both themes that were indeed associated with VP and those that were not. Succenturiate/bi-lobed/ accessory placenta was indicated as a risk factor for VP by 173 (81.2%) of participants. Velamentous cord insertion was chosen by 169 (79.3%) and low-lying second trimester placenta followed with 154 (72.3%). Pregnancies obtained via in-vitro fertilization were selected by 72 (33.8%) participants. There was more congruence regarding techniques used to exclude VP. Two-hundred and four (95.8%) participants stated they would utilize colour Doppler and 181 (85.0%) indicated that transvaginal imaging would be their method of choice to exclude VP. The placental cord insertion site is imaged routinely by 151 (70.9%) of the participating sonographers.

Conclusions:

It is apparent that an overall awareness of VP does not exist among sonographers participating in this study. There is no statistically significant relationship between increased awareness and length of career, workplace, or skill set. It appears that increased awareness among sonographers is indiscriminate.
An Incidental Detection of an Umbilical Cord Cyst
Authors: Jafri Huma
Published: September 2024

This case report describes an usual finding on a routine first trimester dating scan ultrasound study performed on a patient. This was an incidental detection of an umbilical cord cyst seen on the transvaginal scan.
Moderate Tricuspid Regurgitation Found on a Fetal Echocardiogram
Authors: Fraser Megan
Published: September 2024

This case study is a presentation of moderate tricuspid regurgitation found on a fetal echocardiogram performed at 14 weeks gestational age (following the suggestion of a cardiac abnormality at 11 weeks gestational age). The fetus showed moderate tricuspid regurgitation on a 14-week transvaginal fetal echocardiogram which was having a noticeable effect on the right sided heart structures. These findings were again assessed at 22 weeks gestational age and a noted improvement was documented.

The gradual resolution of mild tricuspid regurgitation has been well documented however this case showed moderate levels of regurgitation combined with enlarged right sided heart structures and pericardial effusion.

This is a unique case that characterizes the progression of tricuspid regurgitation from echocardiograms in the first and second trimester, utilizing both transvaginal and transabdominal approaches and demonstrates how it can have adverse effects on the heart at an early age and little to no effect later in pregnancy.
Ultrasound and Hemophilia: A Joint Relief
Authors: Uy Michael
Published: September 2024

Hemophilia is a debilitating disease resulting from a decrease in coagulation factor activity, which ultimately renders the clotting mechanism ineffective. Although there are several complications, hemarthrosis is considered to be the hallmark repercussion as it can lead to inevitable joint dysfunction. This progressive arthropathy can be roughly divided into 3 stages: joint bleeding, synovitis, and arthritic changes. These changes may be demonstrated through various imaging modalities; however, ultrasound has many benefits that can aid in early diagnosis, which is imperative for proper and preventive treatment.
Case Study: An Incidental Finding of Left Ventricular Non-compaction (LVNC) in a Patient with a History of Alcoholism
Authors: Ashley Robin
Published: September 2024

A 52-year-old male patient was emitted to the hospital for alcohol withdrawal and pneumonia. A transthoracic echocardiogram (TTE) was ordered to rule out cardiomyopathy. The TTE showed mild left ventricular hypertrophy and dilation, moderate left atrial dilation, mild pulmonary hypertension, diastolic dysfunction and severe systolic dysfunction. The most unique finding was of significantly increased left ventricular trabeculations, characteristic to the condition known as Left Ventricular Non-compaction. Differential diagnoses’ were ruled out including apical thrombus, tumours, normal trabeculations, false tendons/aberrant bands and apical hypertrophy.
Fusion Navigation
Authors: Kim Deborah
Published: September 2024

Multimodality image registration and fusion plays a vital role in clinical practice for routine diagnosis, follow up, and treatment. The acceptance that one imaging modality will complement another is further indicated through the uptake of dual modality imaging technologies. This article will discuss fusion imaging within the context of ultrasound while covering some clinical and technical considerations, and case examples.
Le stéréotype de la « bonne grand-mère » comme facteur de clémence des tribunaux : analyse des biais de genre à l’épreuve de la détermination de la peine chez les femmes aînées
Authors: Pinel Valérine
Published: September 2024

À partir d’un cadre théorique féministe, cette recherche exploratoire se penche sur la manière dont les critères appliqués par les tribunaux au moment de la détermination de la peine, pour les femmes aînées accusées, révèlent des stéréotypes genrés. L’analyse de cinquante-neuf décisions de première instance concernant des femmes âgées de plus de cinquante ans condamnées au Québec dans les dix dernières années a révélé l’application de modèles stéréotypés genrés dans plus de la moitié d’entre elles, ce qui crée une dichotomie dans le traitement de ces femmes par les tribunaux. Ainsi, à partir du stéréotype d’une nature non violente, maternelle et sacrificielle de la femme, la « bonne grand-mère » serait traitée avec plus de clémence que la « femme déviante » qui, par la commission d’une infraction, viendrait troubler les schémas genrés dans le cadre d’une société patriarcale, et donc dévier du rôle qui est attendu d’elle, en plus d’enfreindre la loi.
poesía quechua de origen prehispánico en la crónica de Guaman Poma de Ayala Jean-Philippe Husson
Authors: Kapsoli Escudero Wilfredo
Published: September 2024

La Crónica de Guaman Poma de Ayala viene a ser el libro más importante escrito en el Perú prácticamente en toda su historia porque es un monumento etnográfico, es un testimonio extraordinario que empata a la vida del mundo de los incas y el mundo colonial
Forecasting financial markets using the random forest algorithm
Authors: Serhiienko A.V. , Bashkiser V.R. , Sushchevsky D.V. , Panferova Ya.V.
Published: September 2024

The article provides material on the analysis of the financial market using the random forest algorithm. The general problem of forecasting financial markets and the role of modern technologies for accurate forecasts and automation of trading strategies are considered. An overview of existing forecasting models and the possibility of their application for financial markets was conducted. The latest studies and publications were analyzed, on the basis of which a research program was developed. The created program has a modular structure and represents a library that can be used for further research. A neural network was built and trained, which, using a random forest algorithm, can perform analysis over a certain period and provide predictions. As part of the research, open data and an analysis of the Apple company were used. During the experiments, an analysis of the accuracy of the model under the influence of hyperparameters, an analysis of the model's operation under different market conditions, a comparison with other forecasting methods, and an analysis of the impact of the amount of data on the accuracy of the model were made. Several neural network mathematical models were built for market forecasting. After that, they were trained on the selected datasets. For training, information was taken for a long period of time, data for quarters, daily profit, profit for a year. The software was written in Python, a number of libraries were used, namely yfinance, Sklearn-Scikit-learn, Matplotlib.pyplot, Pandas. Experimental studies compared the results of different approaches to analysis. Models using the random forest method and the linear regression model were compared, proving the feasibility of using the random die method for this type of problem. With the help of graphs, the metrics are demonstrated and the root mean square errors are derived. To determine the adequacy of the work of the developed neural network, testing was conducted to identify errors when compared with other markets
Using of a cloud technologies for automatic sending of notifications in Telegram
Authors: Serhiienko A.V. , Yefimov P.S. , Obydennyi E.O. , Beshta L.V.
Published: September 2024

The article discusses the issue of automating the distribution of messages in the Telegram messenger using cloud technologies. The general problem of sending messages through several channels is described. An overview of the latest research and publications of modern messaging technologies in Telegram was made, libraries, frameworks and modern patterns were analyzed. A method of using the capabilities of AWS EC2 to create a scalable and reliable solution for automated message distribution is proposed. The process of creating a program according to the proposed method is described in detail. Its architecture and interaction of modules are described. The architecture is structured to encapsulate different functions, each of which serves a specific purpose in the larger context of automated message distribution on the Telegram platform. The characteristics of the selected AWS service, the selected operating system, the programming language and the used libraries are given. The use of automatic scaling in AWS is demonstrated, which automates the configuration of resources based on predefined criteria and provides an effective solution for handling demand fluctuations and maintaining optimal system performance. Python programming language and Telethon library are used. The interaction of AWS EC2 with the Telegram API and the use of the Asynchronous Message Forwarding module to organize the processing of several channels at the same time are shown. The features of the program are described – setting up Telegram accounts, searching for messages, automated forwarding to several channels and other actions. The results of tests of the developed program are shown, which show that the automation of the process of sending messages increases the speed of their delivery to a large number of chats by 120 seconds, which is 40 times more effective, and its resource consumption is less than the resource consumption of ordinary client telegrams in 5 times
Assessment of the potential of solar energy to power municipal utilities
Authors: Chorna V.O. , Kudryashov O.O. , Bilenko S.S.
Published: September 2024

The use of alternative energy sources in the housing and utilities sector of Ukraine is a pressing issue today. Powering household consumers or life-support facilities from a photovoltaic power plant allows achieving energy autonomy, reducing electricity costs, and reducing the negative impact on the environment. Over the past ten years, there has been a significant reduction in the cost of solar power plant elements while improving the quality characteristics of the equipment. This affects the speed of transition of various consumer groups, from households to industry, to alternative energy sources or the use of a hybrid energy system. The efficiency and productivity of photovoltaic power plants are affected by the type of technology used and environmental factors. In the process of converting solar energy, losses may occur that are related to the efficiency of solar panels, inverters, and other system components. When designing a photovoltaic power plant, it is necessary to take into account the latitude of the area where it is planned to install it and possible changes in weather conditions that may reduce solar energy production. To increase the reliability of power supply to equipment in the housing and communal sector, it is proposed to equip the pumping station for increasing the pressure in the water supply network of a nine-story residential building with solar panels. The calculation of the amount of energy generated by the solar power plant is based on angle of panel installation, chosen in accordance with the latitude of the region. To calculate the required number of panels, a method was chosen that takes into account the amount of direct and scattered solar radiation received by the solar panel surface. Based on the results of the calculations, the potential amount of hourly generated power during the year and the consumed hourly power were compared. It was found that the potentially high productivity of the station is in the spring-summer and summer-autumn periods, but it is not able to meet the growing demand for electricity in the evening. In the spring and summer, the morning peak in energy consumption can be met by a photovoltaic plant. Under favorable weather conditions, the amount of generated power will be greater than the power consumption, and the excess energy can be accumulated in the battery and used in the evening. The payback period of the investment in the solar station was calculated using the discounted cash flow method and is 1,6 year
Improvement of individual protection equipment against falls from a height using the methods of focal objects and control questions
Authors: Kukhar V.V. , Kasianenko S.F. , Burko V.A.
Published: September 2024

The article discusses the issues of improving methods of individual protection against falls from a height using the methods of focal objects and control questions. Work at heights comes to work with increased insecurity, and behind the statistics there are great indicators of viral injuries both in Ukraine and in the world in many areas of activity. Specialists from all over the world are working hard on the problem of reducing the number of viral injuries in the workplace. During the study, the main reasons for non-compliance with fall protection PPE by workers will be identified, and an analysis of the general requirements of the current legislation of Ukraine will be conducted. Publications addressing this issue will be reviewed, and similar proposed methods for enhancing existing systems will be examined. Using the methods of focal objects and control questions, a solution is proposed to improve the safety harness by combining its functions with those of a protective jacket. The method of focal objects is a fairly common heuristic method for improving the processes of objects, but it is not universally accepted for monitoring nutritional defense and improving the methods of individual protection. A review of the literature showed positive results from the use of the focal lens method with a high level of objective refinement, design processes and non-standard and associative design. The methods developed in the research made it possible to refine the webbing side belt, replacing its design with the same purpose. The duties of the guard, who will be in charge of the worker and will stand up to him for recognition when he rises to heights, have been thoroughly confirmed, in order to change the certainty that the worker will not be taken advantage of by him
Research of risk factors for tanker navigation in the seaport area
Authors: Husak I.L.
Published: September 2024

The article is aimed at identifying, systematizing and analyzing risk factors to improve the safety of tanker navigation in the seaport waters. The article discusses methods of risk assessment and risk management when planning tanker navigation in the port area. The author proposes a classification of risk factors for tanker navigation in the seaport water area into five classes: class of risks regarding the structure of the port and its water area; class of risks regarding hydrometeorological factors; class of risks regarding ship controllability; class of risks regarding technical means and methods of navigation; class of risks regarding the navigation management system in the port water area. It is proposed to quantify the described risks using safety factors. These safety factors are obtained based on expert assessments that reflect the complexity of the analyzed operations, which corresponds to the accepted approaches in maritime shipping. Considering the methods of intuitive hazard assessment already developed in practice, the safety factors (for each risk factor) are determined through a step function. The most significant scientific result is the creation of a unified approach to quantification for all risk factors considered and the construction of a risk factor tree for tanker navigation in the seaport area. This is the basis for the next stage of assessing the coefficient of navigational safety of navigation in the port area and developing a comprehensive risk analysis model. Thus, an analysis of possible risks associated with the impact of various factors on the safety of tanker navigation in the seaport waters was carried out. These risks cover a wide range of influences, including the structure of the port and port waters, the impact of hydrometeorological factors, ship characteristics and its controllability, as well as the organization of control and management of ship traffic in port waters. The developed methodology for quantifying the identified risks made it possible to calculate the coefficients of navigation safety for specific areas and the entire port area. The peculiarities of the proposed approaches to risk assessment and the methodology presented can be key tools for determining the level of navigation safety and making informed decisions when navigating ships within ports and can contribute to a more accurate analysis of risks and the impact of various factors on navigation safety