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  • Mesothelial Cyst in a Young Female: Case report and literature review

    Mesenteric cysts are rare intra-abdominal benign tumors (1 in 100,000 cases in adults) with various clinical presentations. [1,2] They commonly originate from the small bowel mesentery, although a proportion has been found to originate from the mesocolon, and retroperitoneum. [1,3] The formation of mesenteric cysts depends on the histologic origin, where they could be classified into cysts of lymphatic origin, cysts of mesothelial origin, cysts of enteric origin, cysts of urogenital origin, dermoid cysts and pseudocysts. [4,5] Diagnosis is extremely difficult since. The Mesenteric cyst is usually asymptomatic, but if symptomatic, abdominal pain (82%), nausea and vomiting (45%), constipation (27%) are the most common presenting symptoms. [2,3] The clinical finding of abdominal mass is encountered in more than 61% of the patients. [2,3]. As this condition is very rare and its symptomatology can resemble any other abdominal diseases, diagnosis is extremely difficult and incorrect preoperative diagnosis is often made. Hence, performing physical examination and conducting radiological investigations such as ultrasonography (USG) and computed tomography (CT) are important in making a correct diagnosis. [2,3] As well as cases of mesothelial cysts, they are typically asymptomatic but occasionally, their symptoms are vague and non-specific. [6,7] As mentioned above, imaging modalities such as USG, CT and magnetic resonance imaging (MRI) are great in identifying the character, size, location, surrounding tissues and the wall and content of the cysts. [7] Surgery is the treatment of choice, as a complete resection with negative borders is curative and often prevents recurrence. [3] We report a case of a young female patient who presented with a vague abdominal symptoms and a large cystic mass in lower abdomen. After proper evaluation, surgical exploration revealed a large simple mesothelial cyst.

  • Determining the location of River Dam Group based on set cover Model: A case study of Zambezi River Basin

    Taking the Zambezi River Basin as a typical case, this paper studied the location problem of dam group. Based on the topographical and elevation maps of the Zambezi River Basin, we evaluated each region by five indicators (Water head difference elevation, Geological environment, Climatic environment, Population distribution and Biodiversity), and selected the 22 candidate dam sites. Meanwhile, the relative feasibility index of dam construction is calculated by the entropy weight-grey correlation analysis. On this basis, combined with the water management capacity of the dam, a set coverage model of dam selection is established, and the neighborhood adaptive particle swarm optimization algorithm (NAPSO) is used to solve the 12 most suitable dam sites. Comparing with the water management capacity of the original Kariba Dam, the new dams’ water storage and flood control capacity, hydroelectric power generation capacity, domestic water supply capacity and other water supply capacity have been increased by 235.92%, 250.62%, 189.66% and 223.61% respectively. Our study can provide some guidance for the site selection project of river dam group.


    CALR mutations, together with JAK-2 and MPL ones, are recognized as “driver” mutations in Philadelphia-negative chronic myeloproliferative neoplasms (MPNs). Most frequent CALR mutations are Type-1 deletions (45-55% of cases) and type-2 insertion (32-42% of cases). These mutations are usually associated with younger age, higher platelet counts, lower leukocyte counts, lower hemoglobin levels and a higher incidence of transformation from ET to MF. Recognizing and describing cases with different mutations can be useful to create a database that might help clinicians to include these patients in risk categories and to guide the appropriate therapeutic choices. We report a case of a 77-years old woman who presented a new type-2 like CALR mutation.

  • The wood decomposition system and community diversity of fungi

    Fungi are critical agents of the global carbon cycle, however, our ability to link fungal community composition to ecosystem functioning is constrained by a limited understanding the wood decomposition rates of fungus. Here we examined the wood decomposition rate of fungus and the impact of fungal community diversity on the wood decomposing. To understand the relationship between the wood decomposition rate and the traits of fungi, we introduced 37 types of fungus into the wood decomposition system and set the growth rate and moisture tolerance of fungus as the explanatory variables. In addition, we constructed the competition, parasitic and symbiotic model based on Malthus-block growth comprehensive to analyze and predict the interactions between different fungus. The entropy weight-TOPSIS model was established to understand the biodiversity of fungus and obtain the relative dominance degree which can reflect the advantages and disadvantages of different fungus. The ARIMA model was used in five different environments to predict the impact of fungal community diversity on the overall efficiency of wood decomposing. Our research can not only help us to better understand the fungus community, but also significant for improving the quality of climate and the carbon cycle.

  • Identifying the Topographic Slope Characteristics Most Preferred By Wild Olive Trees in Al-Bahah Region, Saudi Arabia

    The aims of this research were to identify the topographical slope characteristics most preferred by wild olive trees in the Al-Bahah region. This study successfully identified the degree of the slope preferred for wild olive groves. The findings revealed that the majority (72.9%) of wild olive trees in Al-Bahah region occupy slopes of 5–30°. However, the patterns in Qelwa and Al-Mekhwah districts are a bit different where most of the wild olives were found on steeper slopes of 20–40°. This is probably because these sub-regions have a medium to steep slope, descending gradually toward the west, the altitudes ranging from 200 (400) to 2001 and 2200 m west of Al¬-Bahah city and Uwera, and between 2000 and 2100 m west of Baljurashi. The results further depicted that the wild olive with the medium-large crown diameter mostly occupied the gentler slopes of 0–25° compared to those with small crown diameters at steeper slopes of 5–35°. This indicates that the wild olive trees grow better on gentler slopes. These findings can be regarded as theoretically revealing the potential landform suitable for olive plantation. As a basis for olive plantation site suitability, these factors are the essential prerequisites to be considered. However. In addition, it is obvious that site suitability is subject to the temporal dynamics of environmental variables.

  • Research Status of Power Allocation of Combine Harvester

    The development of combine harvester has greatly promoted the development of global agricultural mechanization, In this paper, a large number of research results related to power allocation of combine harvesters were collected, The development status of combined harvester transmission system and power test system is summarized through analysis and selection, It is found that there are few researches on the power distribution of the combine harvester, so it is necessary to further study the related research of the combine harvester.


    Background: Avulsion fracture of the anterior superior iliac spine (ASIS) is a rare form of apophyseal avulsion fracture of the pelvis, and there is a lack of evidence-based guidelines for the selection of treatment options. There are various surgical procedures, but there is the risk of secondary removal of internal fixator and growth disturbance caused by epiphyseal fixation. Methods: We treated 5 patients with avulsion fracture of the anterior superior iliac spine by knotless suture bridge technique who visited our hospital from 2015 to 2020.The surgical treatment results were retrospectively analyzed. Results: 5 patients with fractures were healed after the surgery, no associated complications, the mean postoperative follow-up was 29.2 months (6-60months), all patients were not reported pain symptoms (visual analogue score of 0), they don’t have the limitation of daily activities, and the hip joint function recovered well, and very pleased with the results (Harris score 100 points) at the final follow-up. Conclusion: Knotless suture bridge technique is simple and effective in the repair of the avulsion fracture of anterior superior iliac spine. For such patients, this surgical technique can provide stable and reliable fixation, allow early recovery, and provide a feasible scheme for clinical practice.

  • Seckel Syndrome & Skull Morphology: Quantifying Characteristics

    Seckel Syndrome is a rare genetic disorder which causes morphological changes throughout the body. Some of the most commonly reported changes are those present within the cranium and mandible such as microcephaly, a beak-like nose with convex nasal ridge, and mandibular deformities such as micrognathia. However, these clinical terms provide insufficient information to allow for proper diagnosis or to understand the distortions in physiology that take place with the disease. Therefore, quantification of the features of the skull are necessary to further explain this pathology, and comparisons to normal variation will help to understand the degree to which the anatomy is affected. Seckel Syndrome is classified as a member of the microcephaly family of pathologies; however, our results demonstrate that the overall volume of the skull is not as significantly decreased as the cranial vault itself, which may provide the catalyst for Chiari Type I malformations. The mandible, likewise, is severely altered by Seckel Syndrome decreases in approximately 44% of its volume and demonstrating altered physical proportions. Finally, the osteological measurements of the facial features demonstrated inconsistent findings between different anatomical structures providing evidence that Seckel Syndrome may have a variable effect on the different bones and tissues of the skull.


    This article has carried on the theoretical analysis to the generation mechanism of the sliding pile phenomenon. A certain prediction was made on the causes of slipping piles and their influencing factors. At the same time, it is based on the collected field measurement data, an engineering example is selected to briefly analyze the changes in the bearing capacity of the pile foundation after the sliding pile occurs. It is found that the influence of the sliding pile on the bearing capacity of the pile foundation is mainly the influence on the side friction resistance of the pile, and the reduction of the soil resistance is also mainly due to the reduction of the side friction resistance of the pile. Finally, using ABAQUS finite element analysis software, a numerical simulation analysis was carried out on the changes of the stratum structure, the analysis results show that the position change of the soft soil layer has a certain influence on the bearing capacity of the pile, but it does not change the settlement of the pile top under the limit state; The greater the strength of the supporting layer, the greater the bearing capacity and the greater the displacement when reaching the limit state; The length of the slipped pile does not affect the bearing capacity of the pile foundation, and the farther the slipping occurs from the bearing layer, the smaller the impact on the bearing capacity of the pile foundation. Therefore, in the actual project, attention should be paid to the selection of the bearing layer and the soft soil layer close to the bearing layer should be removed to reduce the impact of the slipping pile on the bearing capacity of the pile foundation and ensure that the bearing capacity of the pile foundation meets the design requirements.


    Background: Peroneal pathology, including trauma, can result in Cavovarus-Drop Foot type deformity, precluding patients from functioning in or attempting bracing. Lateral ankle stabilization and other associated procedures sometimes are not enough to address the resultant deformity, thus many CavoVarus-Dropfoot patients still have gait abnormalities, function minimally in a brace and still have secondary ambulatory pain and loss of function even when braced. We review the results of 9 patients meeting this criteria and electing for a Modified Putti Procedure and lower extremity reconstruction. Materials and Methods: The charts of 9 patients with adult-acquired CavoVarus deformity foot type after peroneal rupture were reviewed, all but 1 had failed previous AFO/bracing. These patients underwent surgical correction all consisting of the Modified Putti procedure, along with other ancillary procedures and the results and outcomes were collected. Additionally, surgical technique was documented. Results: The mean VAS score improved from 9.1 to 2.4 pre- and post-operatively, respectively. The average time to weight bearing was 7.2 weeks. Four of 9 (44.44%) patients experienced some form of complication. Eight of 9 (88.88%) patients relayed the surgery was a success and would opt to undergo it again, given the choice. Conclusion: The Modified Putti Procedure showed promising results, great patient satisfaction and marked improvement in pre-operative and post-operative pain rating. This technique, utilized after severe peroneal trauma and resultant deformity is present, is a considerable option to have in the foot and ankle surgeon’s armament.