Archiving System Research Articles

Impact of the natural temperature regime of the upper layers of Earth on efficiency of a hydrothermal heat pump system


 
 
 This article focuses on current issues of alternative geothermal heating development, by using low-potential thermal energy of upper aquifers by heat pumping technology. This type of heat supply is sustainable, does not require fossil fuel consumption and does not pollute the environment. In recent years, heat pumping technologies have become common. A lot of heating systems are implemented, using low potential energy in the air, open bodies of water or soil. Although, now, the heat of groundwater in upper aquifers is a more efficient and reliable source of energy for heat pumps. It was tested in this study. The purpose of this study is to impact assessment of the heat regime of the ground upper layers on efficiency of operation of heat pumping units, using groundwater of near-surface horizons. The factors founded, which form the natural heat mode within the studied area, also the correlation established between temperature changes in the horizon and the operation of the heat pump unit, based on the experimental heat pump unit, established by the Institute of Renewable Energy of the National Academy the Sciences of Ukraine. The article presents an experimental hydrothermal heat pump system developed and constructed at the Institute of Renewable Energy of the National Academy of Sciences of Ukraine, which consists of a heat pump and two wells through which water circulation from the underground horizon to the heat pump. The study describes the characteristics of measuring equipment installed on a hydrothermal heat pump system and described developed an interactive scheduling system based on the software product ESM (Engineering Systems Manager) using the programming language FBD (Function Block Diagram | Continuous Function Chart). This software product was used to create the visual system and archival data system that were obtained in the course of this work. The benefits of this study are that the experimental installation uses the thermal energy of groundwater of the Poltava-Kharkov aquifer as the primary energy source. The interval of the productive horizon is 32-57 m. The groundwater level in the horizon is set at about 40 m. In addition, the air temperature between the pipe space of the observation well and the groundwater temperature in the aquifer are monitored. The duration of regime observations was six months, the frequency of measurements – 5-15 seconds. The monitoring results indicate that despite the fact that the productive horizon is at a depth that significantly exceeds the usual depth of the neutral layer for the territory of Ukraine, the for- mation temperature is not stable and its amplitude is 2 oC. According to the authors, the increase in the depth of the surface of constant annual temperatures may be due to local features of the studied area, namely: increasing the absorption surface of solar radiation due to terrain, the presence of lateral heat inflow, the presence of water-saturated layers in the upper part. Consequently, based on the analysis of geological and hydrogeological conditions of the site, as well as technological processes occurring in the installation, the main factors that form the natural temperature of the upper layers of the earth are identified. As a result, the percentage of energy efficiency drop of the installation is calculated depending on the decrease in the temperature of the natural heat carrier in the aquifer. It is established that it is necessary to conduct additional research to assess the environmental impact of the use of aquifers for energy purposes and to ensure the optimal mode of operation of aquifers, which would be as close as possible to their natural regime.
 
 

Eccentrically widened bone tunnels after all-inside anterior cruciate ligament reconstruction: a computed tomography and three-dimensional model-based analysis

PurposeTo evaluate the extent of tunnel widening after anterior cruciate ligament reconstruction (ACLR) using the all-inside technique and to establish its correlation with patient-reported clinical outcomes and femoral graft bending angle (GBA).MethodsTunnel widening was evaluated using computed tomography (CT)-based three-dimensional (3D) models, and the femoral GBA was directly measured on CT images using the Picture Archiving and Communication System (PACS) software. Clinical follow-up was routine procedure, and patient-reported clinical outcomes mainly included International Knee Documentation Committee (IKDC), Lysholm, and Knee Injury and Osteoarthritis Outcome Scores (KOOS) scores, and subjective knee stability assessment.ResultsFifty-two patients received standard all-inside ACLR, with a median follow-up of 6 months. Reconstructed anterior cruciate ligaments (ACLs) were scanned during the first 3 days and 6 months after surgery. On both the femoral and tibial sides, bone tunnels were most significantly enlarged at the articular aperture segment; the femoral tunnel was 9.2 ± 1.3 mm postoperatively and was significantly enlarged by 32% to a mean tunnel diameter of 12.1 ± 2.0 mm at 6 months after surgery. Moreover, the extent of tunnel enlargement gradually decreased as the measured levels approached those of the bone cortex. The femoral tunnel center was shifted into the anterior and distal direction, and the tibial tunnel center was shifted into the posterior and lateral direction. Additionally, the mean femoral GBA was 105.9° ± 8.1° at the 6-month follow-up. Tunnel enlargement and GBA were not significantly correlated with patient-reported outcomes.ConclusionsFemoral and tibial tunnels were significantly greater and eccentrically shifted at the 6-month follow-up after all-side ACLR. However, the extent of tunnel widening does not markedly affect the short-term clinical outcomes. Meanwhile, the femoral GBA was not significantly correlated with femoral tunnel widening or patient-reported outcomes. Although the tunnel widening following all-inside ACLR was not associated with clinical outcomes, it potentially caused difficulties in revision ACLR.Level of evidenceLevel IV.

Preliminary results of two novel devices for epiphysiodesis in the reduction of excessive predicted final height in tall stature

BackgroundIn the treatment of tall stature, the reduction of excessive predicted final height can either be achieved by hormonal treatment or surgically by temporary (tED) or permanent (pED) epiphysiodesis. The present study evaluates the preliminary results of two novel devices for tED and pED around the knee to reduce the predicted final height.Materials and methodsA retrospective analysis was performed to evaluate the clinical and radiographic outcome after bilateral epiphysiodesis for the treatment of tall stature. A cohort of 34 patients (16 girls, 18 boys) who underwent either tED or pED between 2015 and 2020 were eligible for analysis based on the electronic patient records and picture archiving and communication system of our orthopaedic teaching hospital. tED was conducted in 11 patients (32%) through bilateral implantation of four RigidTacks™ (Merete, Berlin, Germany) around the knee. Twenty-three patients (68%) received pED, performed with an EpiStop™ trephine (Eberle, Wurmberg, Germany). The mean overall follow-up time was 2.9 years.ResultsThe mean age at surgery was 12.3 years in girls and 13.2 years in boys. Patients had a mean body height of 175.2 cm in girls and 184.7 cm in boys at surgery. The mean predicted final height was 191.4 cm in girls and 210.4 cm in boys. At the last follow-up, 26 patients (76.5%) had achieved skeletal maturity. The mean height of skeletally mature patients was 187.2 cm in girls and 198.5 cm in boys. A mean reduction of the predicted final height of 5.9 cm in girls and 8.7 cm in boys was achieved, corresponding to a reduction in remaining growth of 46% in girls and 38% in boys. Secondary frontal plane deformities of the knee were detected in 5/11 patients (45.5%) in the tED group and 1/23 treatments (4.3%) in the pED group.ConclusionstED and pED have both proven to be efficient at achieving growth inhibition to reduce excessive predicted height. However, tED has been associated with an increased risk of secondary angular deformities of the knee. Furthermore, the risk of implant-related complications and the necessity of a subsequent surgical intervention for implant removal have led our study group to abandon tED when treating tall stature. Long-term results of both procedures are pending.Level of evidence4.

Computational Culture: Transforming Archives Practice and Education for a Post-Covid World

This paper takes a landscape view of archives practice now operating in a sea of human digital behavior, interacting with computational systems embedded in real and virtual life, part of our complex global digital ecosystem driving cultural and social change. We envision a new computational archives framework, designed to be user-centric, in ways that integrate traditional archival practice into an overarching computational framework incorporating structured and unstructured data, computational tools,AI (artificial intelligence), ML (machine learning), robotics, and automation intended to aid in management and public engagement with physical, digitized, and born-digital documents. Set in a networked environment of increasing computing power, this “more than human” system derives from the latest computing advances fromNLP (natural language processing)and image recognition to artificial neural networks. We envision an archives system that is at once complex and integrated into a new inclusive and diverse cultural fabric. This paper covers general issues that have been accelerated by the Covid-19 pandemic, together with two institutional case studies.

An Assessment of the Potential Benefits of Video Consultation in the Emergency Department: Mixed Methods Study.

BackgroundDistrict general hospital emergency departments may refer patients to a tertiary center depending on the information available to a generalist clinician in discussion with a specialist team. If there is uncertainty, the lowest-risk strategy is often to transfer the patient. Video consultation allowing the specialist team to see and talk to the patient and local clinician while still in the emergency department could improve decision-making for patient transfer.ObjectiveThe aim of this study is to assess the potential benefit of real-time video consultation between remote specialists and emergency department patients and clinicians across all specialties.MethodsDetailed patient data were collected prospectively for 6 months (between January 16, 2012, and July 15, 2012) on all patients presenting to a district general hospital emergency department who required input from a specialist team at the nearest tertiary care center. These patients were discussed retrospectively with the specialist teams to determine whether videoconferencing could have benefited their management. The logistics for the use of videoconferencing were explored.ResultsA total of 18,799 patients were seen in the emergency department during the study period. Among the 18,799 patients, 413 referrals (2.2%) were made to the tertiary center specialist teams. A review of the patients transferred indicated that 193 (46.7%) of the 413 patients who were referred might have benefited from video consultation (193/18,799, 1% of all patients). If the specialist team could be accessed via videoconferencing only while a senior member was available in the hospital (8:00 AM-10:00 PM), then a maximum of 5 patients per week across all specialties would use the equipment. If 24-hour specialist access was available, this would increase to 7 patients per week.ConclusionsIn regions where there is direct transportation of patients by ambulance to specialist centers and there is a regional picture archiving and communication system in place, video consultation between emergency department patients and specialists has limited potential to improve patient management.

CT Utilization in a Level One Trauma Center in South Africa.

IntroductionComputed tomography (CT) imaging forms an important component in the evaluation and management of patients with traumatic injuries. Many South African emergency departments (EDs) have a significant trauma-related workload, especially in the public sector, where there are limitations in resources relating to CT scanners. It is important to gauge the impact of traumatic injuries on CT utilization. The primary objectives were to quantify the number and type of CT imaging studies trauma patients received, as well as to determine the frequency of radiologically significant findings in a level one trauma center. The secondary objectives were to determine the CT utilization rate and describe the demographics of patients who received imaging.MethodsThis was a retrospective, quantitative, descriptive, cross-sectional study undertaken over two months at the level one trauma center of a tertiary, academic, public sector teaching hospital in Johannesburg, South Africa. The radiology department’s picture archiving and communication system (PACS) was used to evaluate the reports of trauma patients who were referred for a CT scan. The trauma center register was used to calculate the CT utilization rate.ResultsThere were 5,058 trauma patients seen in the two months. A total of 1,277 CT scans were performed on 843 patients. CT brain accounted for 52% of all scans performed. Radiologically significant findings were demonstrated in 407 scans (354 patients), i.e. 31.9% of scans and 42% of patients. CT chest and peripheral angiogram demonstrated radiologically significant findings in 60.5% and 50.9% of scans respectively. Assault accounted for 55.8% of the injuries sustained and road traffic accidents accounted for 33.2%. The overall CT utilization rate was 16.7% i.e. 843 out of the 5,058 trauma patients underwent a CT scan.ConclusionsSouth Africa has a substantial trauma burden which commonly necessitates CT utilization. It is concerning that blunt and penetrating assault continues to dominate these traumatic presentations. Worldwide, there is a broad range of described CT utilization rates and the findings at this level one trauma center fall within that range. ED clinicians are encouraged to continue carefully using this scarce resource in the trauma setting.

Optimization of University Archives Management under the Application of Blockchain Technology in the Digital Age

The centralized database can store a variety of electronic archives. Electronic archives face a variety of network attack vulnerabilities as information technology and network technology continue to advance. Furthermore, these archives will be readily forged and tampered with by internal management or external attackers. Data security and authenticity problems prevail in China’s management system for archives. First, this exploration elaborates the blockchain technology, distributed database technology, and distributed database system structure. Secondly, blockchain technology is applied to the authenticity protection of electronic archives. Then, an optimization model of university archives based on blockchain technology is constructed. Finally, this exploration investigates the current use of blockchain technology for college archive management systems. The questionnaire is used to understand the current university personnel’s views on the college archive management system under the application of blockchain. The survey results suggest that most people support the digital college archive management system. At present, the operation efficiency of the college archive management system still needs to be improved, and the quality of archives search should be promoted. Therefore, the college archive management system still needs to optimize the archive’s efficiency as well as quality. According to the above survey results, this investigation gives suggestions for optimizing the college archive management system using blockchain technology, as well as some suggestions and references for further management.

The Impact of Digital Technologies on Kazakh archivists in the Age of Globalization

Based on the survey questionnaire and interviews with employees of the state archives across Kazakhstan, this article examines the impact of digital technology on Kazakh archivists. Although the impact of information technology on human life in the information age is growing, there is a lack of research in Kazakhstan about how the deep transformation in society engendered by digital technology has affected the national archival system and archivists. It is therefore not fully understood how they can influence and what changes they bring to the archival system in Kazakhstan and archivists. Hence, this study aims to fill the gap in this specific area and contribute to the scholarship on archival science. The results of the study empirically confirm the positive impact of information technology on the work of archivists. The obtained data require a critical approach to the role of information technology in the work of archivists.

Virtual non-contrast images from dual-energy CT angiography of the abdominal aorta and femoral arteries: comparison with true non-contrast CT images.

To assess whether virtual non-contrast (VNC) computed tomography (CT) images acquired from dual-energy CT (DECT) have sufficient image quality to replace true non-contrast (TNC) CT images in CT angiography (CTAG). This study enrolled 63 consecutive patients who underwent a CTAG that included a single-energy non-contrast scan, followed by a post-contrast DECT scan. Comparison of attenuation and noise between TNC and VNC images was made by drawing circular regions of interest (ROI) on a picture archiving and communication system (PACS) workstation within the aortic lumen at the levels of the renal arteries, the aortic bifurcation and right femoral artery. Mean attenuation and image noise (one standard deviation) were registered in Hounsfield units (HU). The VNC images were subjectively evaluated for artifacts such as subtraction of calcifications or architectural distortion based on TNC image as a standard of reference. Most attenuations of the VNCs were higher than TNC, except right femoral artery of reader 2. Most image noises of TNC were higher than VNC, except abdominal aorta in reader 1. In qualitative image analysis, mean scores of VNC according to the 5-point scale were 3.68 and 3.63 (reader 1 and reader 2, respectively) which mean good to excellent to diagnose. HUs and VNC image noises are different from TNC images in CTAG. VNC images have sufficient image quality to replace TNC images in the diagnosis of calcific lesions. VNC images acquired from DECT have image quality adequate to replace TNC images in the diagnosis of the calcific lesion on the CTAG. VNC images based on DECT can avoid excessive and unnecessary patient exposure to radiation during CTAG.

An Effective Model of Confidentiality Management of Digital Archives in a Cloud Environment

Aiming at the problem of confidentiality management of digital archives on the cloud, this paper presents an effective solution. The basic idea is to deploy a local server between the cloud and each client of an archive system to run a confidentiality management model of digital archives on the cloud, which includes an archive release model, and an archive search model. (1) The archive release model is used to strictly encrypt each archive file and archive data released by an administrator and generate feature data for the archive data, and then submit them to the cloud for storage to ensure the security of archive-sensitive data. (2) The archive search model is used to transform each query operation defined on the archive data submitted by a searcher, so that it can be correctly executed on feature data on the cloud, to ensure the accuracy and efficiency of archive search. Finally, both theoretical analysis and experimental evaluation demonstrate the good performance of the proposed solution. The result shows that compared with others, our solution has better overall performance in terms of confidentiality, accuracy, efficiency and availability, which can improve the security of archive-sensitive data on the untrusted cloud without compromising the performance of an existing archive management system.

Artificial intelligence, machine learning and deep learning in musculoskeletal imaging: Current applications.

Artificial intelligence is rapidly expanding in all technological fields. The medical field, and especially diagnostic imaging, has been showing the highest developmental potential. Artificial intelligence aims at human intelligence simulation through the management of complex problems. This review describes the technical background of artificial intelligence, machine learning, and deep learning. The first section illustrates the general potential of artificial intelligence applications in the context of request management, data acquisition, image reconstruction, archiving, and communication systems. In the second section, the prospective of dedicated tools for segmentation, lesion detection, automatic diagnosis, and classification of musculoskeletal disordersisdiscussed.

Surgical site infection in upper extremity fracture: Incidence and prognostic risk factors.

Upper extremity fractures (UEF) occurred in about 0.67% of males and females at some point in their lifetime. Surgical treatment has the advantage of good functional recovery, however, the occurrence of surgical site infection (SSI) affects the clinical outcome of operation. Currently, there are few studies focused on SSI of UEF. Consecutive patients with UEF and underwent surgeries from January 2010 to February 2021 were recruited. Demographic data, surgical related variables and laboratory test index of these patients were extracted and collected from the electronic medical records and picture archiving and communication system by well-trained investigators. Receiver operating characteristic (ROC) analysis was performed to detect the optimum cut-off value for continuous variables. Multivariate logistic regression analysis was performed to identify independent risk factors of SSI. In total, 286 patients with a mean age of 44.4 ± 16.6 years were identified for inclusion, 59.8% patients diagnosed with fracture of radius and ulna and 40.2% fractures located in the humerus, closed and open fractures were occurred in 252 and 34 adult patients respectively. 7.3% UEF patients were encountered with SSI, incidence of superficial and deep infection was 6.3% and 1.0%. Open fracture (OR, 8.33; P, .000), operation time longer than 122 minutes (OR, 3.12; P, .036), intraoperative blood loss more than 135 mL (OR, 3.98; P, .009) and albumin (ALB) lower than 40.8 g/L (OR, 3.60; P, .015) were demonstrated as independent risk factors of SSI. Adequate preoperative evaluation, careful intraoperative manipulation, and timely and appropriate postoperative interventions should be formulated to reduce the incidence of SSI in patients with the above perioperative high-risk factors.

Changes in Spinal Alignment of Women Who Underwent Unilateral Mastectomy with Immediate Autologous Breast Reconstruction Compared To Mastectomy without Breast Reconstruction

IntroductionThe impact of breast reconstruction on spinal alignment is not well studied, especially in immediate autologous breast reconstruction. Studies on body posture have shown greater asymmetry among those without reconstruction. This study compared the changes in spinal alignment pre- and post-operatively among women who underwent unilateral mastectomy without reconstruction (MA) versus immediate autologous breast reconstruction (IABR). MethodsA cross sectional, retrospective study analysed MA and IABRs performed from January 2007 to December 2017 and their pre- and post-operative anterior chest radiographs. The change in Cobb's angle (degrees) less than 1 year, 1 to 2 years, more than 2 years post-operatively were analysed using GE Healthcare Centricity Picture Archive and Communications Systems. Results537 patients underwent mastectomy; 76 fulfilled the inclusion criteria (36 IABR, 40 MA). No significant difference existed between mean pre- and post-operative Cobb's angle change across all 3 groups, less than 1 year (MA 3.57±3.84, IABR 3.316±2.72, p=0.81), 1 to 2 years (MA 1.84±4.81, IABR -2.68±3.21, p=0.577) and more than 2 years post-operatively (MA -1.14±5.30, IABR -0.94±5.10, p=0.898). However raw data indicated IABR improved spinal alignment in the short and intermediate period post-operatively. Among IABR, free flap breast reconstruction improved spinal alignment compared to pedicled flaps [free flaps: 2.21±3.28, pedicled flaps: 0.01±3.67 (p=0.027)]. ConclusionIABR has a positive impact on spinal alignment in early and intermediate post-operative period compared to MA, especially in women with larger breast volume. Physical benefits of IABR should be highlighted to improve patient's access to breast reconstruction globally.

Digitalization of Judicial Electronic Archives using the Rational Unified Process Method with An Application Development Framework Using CodeIgniter (Case Study of Pengadilan Tinggi Agama Palembang)

The archiving process at the Pengadilan Tinggi Agama Palembang was still manual, where archive officers must prepare storage areas, sort and classify archives, put files into folders, and create archival data. The increasing number of archives and piling up in storage space makes searching for archives difficult and takes a long time in the process of searching for the required archives. The purpose of this research is to improve the existing system by designing a web-based archiving digitization application. In this research, the system development stage uses the Rational Unified Process (RUP) method with an application development framework using CodeIgniter. Based on the test results using the blackbox testing method, the system can display information on the decision archives graphically, the archive search process quickly, downloads the decision archive documents digitally, digital documents that have been separated by archive type and archive year, so it can be concluded that the archival information system with the application of information technology can facilitate work in processing, storing, reporting to obtain information and can then be used for decision making.

Variation of Torg-Pavlov ratio with age, gender, vertebral level, dural sac area, and ethnicity in lumbar magnetic resonance imaging

The objectives of the study were to provide normal values of the Torg-Pavlov ratio (TPR) of the lumbar spine in magnetic resonance imaging (MRI) for the Jordanian population and examine differences observed according to factors including age, gender, lumbar level, dural sac area, or ethnic group. Two hundred and eighteen lumbar MRIs from the Picture Archiving and Communication System were reviewed. These were collected from three main governmental hospitals, in North, Central, and South of Jordan. The mid-sagittal diameters of the vertebral body, spinal canal, and dural canal area were measured at all levels. Patients' gender and age were documented as well. Exclusion criteria were kyphoscoliosis alignments disorders, lumbar spinal canal compression regardless of the cause, vertebral bony disease (including fractures), and the presence of technical artifacts. Statistical analyses used descriptive and correlational methods. Comparisons were made between genders, age groups, lumbar level, dural sac area in the study population using independent t-test and one-way ANOVA tests, and between ethnicities by reviewing previous reports on subjects of different ethnicities. The mean TPR ratio for the study participants was 0.4502 ± 0.097. The value of TPR was widest in the 20-29-year-old group at all vertebral levels and in both males and females. Females had a significantly wider TPR than males (P = 0.003) in all age groups. TPR differed significantly between the five vertebral levels (P = 0.026). The difference in TPR between age groups was not statistically significant. TPR showed a positive significant correlation with dural sac (r = 0.203, P = 0.003). Comparison with the previous literature demonstrated variation in the TPR where Jordanian population had a lower TPR in comparison with Negros and Caucasoids whereas similar to Koreans, especially in females. There are significant differences in TPR according to gender, dural sac area, lumbar spinal level (except between L1 and L2), and ethnic group, but no significant difference with the age was found. The present study has identified normal values of Torg's ratio in the Jordanian population. Although the study may not be able to provide clear guidelines for use in clinical practice, it has still highlighted possible between countries variations and has identified differences in these values to different factors. Implications on clinical practice could be reflected on the diagnosis of lumbar spinal stenosis or on predicting the prognosis of lumbar spine injury.

A novel combined index of D-dimer, fibrinogen, albumin, and platelet (FDAPR) as mortality predictor of COVID-19.

In coronavirus disease 2019 (COVID-19) caused by SARSCoV2 viruses, coagulation abnormalities are strongly correlated between disease severity and mortality risk. The aim was to search for new indices to determine mortality risk. Fibrinogen times D-dimer to albumin times platelet ratio calculated with the formula (FDAPR index: ((Fibrinogen × D-dimer)/(Albumin × Platelet)) investigated as a mortality marker in COVID-19 patients. The hospitalization data of 1124 patients were analyzed from the electronic archive system. Hemogram, coagulation, and inflammatory markers were investigated in the study group. All statistical analyses like the student t-test, Mann-Whitney U, Kaplan-Meier, and Cox hazard ratio, were performed with the SPSS 22.0 program. Prothrombin time was prolonged significantly in patients (P < 0.05) compared to healthy subjects (n = 30). D-dimer and fibrinogen were high, and albumin and platelet counts were low in COVID-19 patients (all, P < 0.001). When the data of 224 non-survivors and 900 survived patients were compared, D-dimer and fibrinogen were higher, and albumin and platelet lower (all, P < 0.001) compared to mild and severe patients. At the cut-off value of 0.49, the FDAPR index was performed with 89.1% sensitivity and 88.6% specificity. FDAPR index had the highest mortality predictive power (P < 0.01; HR = 5.366; 95% CI; 1.729-16.654). This study revealed that the FDAPR index could be used as a mortality marker of COVID-19 disease.

IMAGING FINDINGS OF OSTEOID OSTEOMAS IN CHILDREN AND ADOLESCENTS, CT VERSUS MRI: A SINGLE CENTER EXPERIENCE

Objective: To analyze osteoid osteomas of the pediatric age group, assess the distribution of lesions, and radiological findings, and compare the ability of Computerized Tomography (CT) and Magnetic Resonance Imaging (MRI) in detecting the tumor.Material and Methods: Forty-four lesions of osteoid osteoma in children and adolescents were retrospectively analyzed using hospital files and institutional picture archiving and communication systems. Age, gender, treatment choices, modality used for diagnosis, tumor site, location within the bone, presence of calcified nidus, perilesional reactive sclerosis, cortical thickening, perilesional bone marrow edema, and joint effusion were documented.Results: Twenty-nine males and 15 females with a median age of 15.00 (range: 4-18 years) were included in the study. All of the lesions were located in the appendicular skeleton. No axial skeletal involvement was found. Forty out of 44 lesions were located in the long bones. One was localized in the patella, 2 of them in the talus and 1 in the calcaneus. Thirty-four out of forty long bone involvement were in lower extremities. Six cases were located intraarticularly and joint effusion was seen in the involved joint. CT was available in all patients and MRI was available in 18 patients. CT was the first choice of cross-sectional imaging modality in 35 patients, and MRI was the first choice in 9 patients. MRI was successful in only 56% of the cases in characterizing osteoid osteomas. CT was accurate to characterize all osteoid osteoma lesions.Conclusion: CT is more successful than MRI in detecting and characterizing osteoid osteomas. Intraarticular osteoid osteoma must be kept in mind in differential diagnosis, evaluating joint synovitis in children and adolescents.

PENGEMBANGAN DIGITALISASI DAN PENATAAN ARSIP KEPENDUDUKAN DI KANTOR DINAS KEPENDUDUKAN DAN PENCATATAN SIPIL KOTA SURABAYA

This study aims to determine the innovations developed in the implementation of archiving birth certificates at the Department of Population and Civil Registration of the City of Surabaya. Electronic archives have an important role in the administrative system, besides that they are also legal evidence based on Law Number 11 article 5 paragraph (1) of 2008. The development of information technology requires records to be processed electronically. In this study, the author uses an exploratory method. This method is used because the author does not yet know a clear picture of the problem situation that occurs in the field. The method of implementing the activities carried out are Observation, and Documentation. The results showed that the archive arrangement system was still not good and still conventional. It is very necessary to make improvements, so that documents can be neatly organized, and not messy and if needed at any time are easy to find again

Prevalence and clinical characteristics of malignant lung nodules in tuberculosis endemic area in a single tertiary centre

BackgroundLung nodule management remains a challenge to clinicians, especially in endemic tuberculosis areas. Different guidelines are available with various recommendations; however, the suitability of these guidelines for the Asian population is still unclear. Our study described the prevalence of malignant lung nodules among nodules measuring 2–30 mm, the demographic and characteristics of lung nodules between benign and malignant groups, and the clinician's clinical practice in managing lung nodules.MethodRetrospective review of lung nodules from the computed tomography archiving and communication system (PACS) database and clinical data from January 2019 to January 2022. The data was analysed by using chi square, mann whitney test and simple logistic regression.ResultsThere were 288 nodules measuring 2–30 mm identified; 49 nodules underwent biopsy. Twenty-seven (55%) biopsied nodules were malignant, (prevalence of 9.4%). Among the malignant lung nodules, 74% were adenocarcinoma (n = 20). The commonest benign nodules were granuloma n = 12 (55%). In nodules > 8 mm, the median age of malignant and benign was 72 ± 12 years and 66 ± 16 years, respectively (p = 0.024). There was a significant association of benign nodules (> 8 mm) in subjects with previous or concurrent tuberculosis (p = 0.008). Benign nodules are also associated with nodule size ≤ 8 mm, without spiculation (p < 0.001) and absence of emphysema (p = 0.007). The nodule size and the presence of spiculation are factors to make the clinicians proceed with tissue biopsy. Spiculated nodules and increased nodule size had 11 and 13 times higher chances of undergoing biopsy respectively (p < 0.001).) Previous history of tuberculosis had a 0.874 reduced risk of progression to malignant lung nodules (p = 0.013). These findings implied that these three factors are important risk factors for malignant lung nodules. There was no mortality association between benign and malignant. Using Brock's probability of malignancy, nodules ≤ 8 mm had a low probability of malignancy.ConclusionThe prevalence of malignant lung nodules in our centre was comparatively lower than non-Asian countries. Older age, the presence of emphysema, and spiculation are associated with malignancy. Clinical judgment is of utmost importance in managing these patients. Fleishner guideline is still being used as a reference by our clinician.

File Search in Employee Archives Using Sequential Search Algorithm

PT. Jaya Nika Permata Group is one of the companies engaged in the Bakery, Café and Restaurant which has been running for 37 years and is still active until now. Currently based in the city of Pekanbaru, and already has branches in Duri, Dumai, Batam. With the total number of employees of PT. Jaya Nika Permata Group has approximately 485 employees, of course, the number of employee files that will be archived is quite large and the file types are varied. In addition, the process of searching for employee files at the time of archived and when files are needed will take a long time considering the large number of employees. Currently, there is no system that can help facilitate the employee's file archiving activities. In this study, field research was conducted to determine the condition of the current file archiving system. Based on the analysis that has been obtained, research is carried out to develop an employee file filing system that is currently running at PT. Jaya Nika Permata. Searching files in employee archives using a sequential search algorithm is expected to facilitate employee file archiving activities and speed up the process of searching for employee files when needed.