Publications by authors named "James Rosser"

Background: As the needs and curricula of surgical residencies evolve, recent studies have focused on identifying factors that may be related to faster and more efficient surgical skill acquisition, such as experience with playing video games, sports, and other dexterous activities. The aim of this study was to elucidate the relationship between instrumental musical experience and laparoscopic surgical skill performance as well as to provide an overview of the available literature on this topic.

Methods: A query from database inception to January 2023 of the PubMed database for literature discussing the association of musical experience and surgical skills was conducted.

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Genetic engineering of human lymphocytes for therapeutic applications is constrained by a lack of transgene transcriptional control, resulting in a compromised therapeutic index. Incomplete understanding of transcriptional logic limits the rational design of contextually responsive genetic modules1. Here, we juxtaposed rationally curated transcriptional response element (TRE) oligonucleotides by random concatemerization to generate a library from which we selected context-specific inducible synthetic promoters (iSynPros).

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Background: Competition-based learning (CBL) facilitates learning through competitions. At the 2022 & 2023 Annual SAGES meetings, we evaluated a CBL experience (TOP GUN Shootout) developed from a modified version of the previously validated TOP GUN Laparoscopic Skills and Suturing Program. The project sought to evaluate the TOP GUN Shootout's (TGS) ability to enhance participant engagement in pursuit of laparoscopic surgical skills.

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Article Synopsis
  • The initial phase of global surgical advancements was marked by key breakthroughs in infection rates and techniques by pioneers like Lister and Halsted, shared through letters and academic works.
  • Despite achieving success, the progress was slower than desired, highlighting limitations in traditional methods of surgical education.
  • The paper discusses the development of virtual learning and telementoring as innovative tools that enhance and accelerate the adoption of minimally invasive surgical practices.
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Synthetic immunology, as exemplified by chimeric antigen receptor (CAR) T-cell immunotherapy, has transformed the treatment of relapsed/refractory B cell-lineage malignancies. However, there are substantial barriers-including limited tumor homing, lack of retention of function within a suppressive tumor microenvironment, and antigen heterogeneity/escape-to using this technology to effectively treat solid tumors. A multiplexed engineering approach is needed to equip effector T cells with synthetic countermeasures to overcome these barriers.

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Background: Mobile technologies hold potential for improving the quality of care and engagement of patients. However, there are considerable challenges in ensuring that technologies are relevant, useful, and engaging. While end users such as patients and providers are increasingly involved in the design of health technologies, there are limited examples of their involvement in directly creating technologies for their personal use.

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Introduction: Rapid progress has been made with unmanned aerial systems (UAS), which are now used in a wide variety of different fields, including media, agriculture, wildlife, and infrastructure. However, the application of UAS for medical purposes, and in particular disaster relief efforts, has been slower to develop. This paper will review and present pertinent studies in the literature.

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Background: Drones have the ability to gather real time data cost effectively, to deliver payloads and have initiated the rapid evolution of many industrial, commercial, and recreational applications. Unfortunately, there has been a slower expansion in the field of medicine. This article provides a comprehensive review of current and future drone applications in medicine, in hopes of empowering and inspiring more aggressive investigation.

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Objective: The SAGES Mini Med School (SMMS) was designed to expose high school students to the field of surgery through mentoring, knowledge transfer, and hands-on experience with simulation. The objective of this paper is to profile the evolutionary development, performance metrics, and satisfaction queries of this innovative effort.

Methods: Sixty-one high school students, grades 9-12, took part in the (SMMS) program during the 2015 SAGES Annual Congress.

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Objective: To design and develop a distance learning (DL) system for the transference of laparoscopic surgery knowledge and skill constructed from off-the-shelf materials and commercially available software.

Introduction: Minimally invasive surgery offers significant benefits over traditional surgical procedures, but adoption rates for many procedures are low. Skill and confidence deficits are two of the culprits.

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The PIWI-interacting RNA (piRNA) pathway is essential for retrotransposon silencing. In piRNA-deficient mice, L1-overexpressing male germ cells exhibit excessive DNA damage and meiotic defects. It remains unknown whether L1 expression simply highlights piRNA deficiency or actually drives the germ-cell demise.

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Article Synopsis
  • This study explored whether high school students could successfully learn laparoscopic surgical skills using a training curriculum intended for surgeons.
  • Thirteen students participated in a validated training program, completing various drills and showing impressive performance improvements compared to a database of surgeons.
  • The results indicated that students not only completed the tasks but also had faster improvement rates, with their final times being comparable or faster than those of experienced surgeons in specific drills.
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Objective: This abstract profiles the comparison of correlations between previously validated Super Monkey Ball (SMB) and recently introduced Underground (U) video game on the Nintendo Wii U to multiple validated tasks used for developing basic and advanced laparoscopic skills.

Methods: Sixty-eight participants, 53 residents and 15 attending surgeons, performed the Top Gun Pea Drop, FLS Peg Pass, intracorporeal suturing, and two video games (SMB and U). SMB is an over-the-counter game, and U was formulated for laparoscopic skill training.

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Long interspersed elements (LINEs), through both self-mobilization and trans-mobilization of short interspersed elements and processed pseudogenes, have made an indelible impact on the structure and function of the human genome. One consequence is the creation of new CpG islands (CGIs). In fact, more than half of all CGIs in the genome are associated with repetitive DNA, three-quarters of which are derived from retrotransposons.

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Background: Traumatic abdominal wall hernias from blunt trauma usually occur as a consequence of motor vehicle collisions where the force is tangential, sudden, and severe. Although rare, these hernias can go undetected due to preservation of the skin overlying the hernia defect. Open repairs can be challenging and unsuccessful due to avulsion of muscle directly from the iliac crest, with or without bone loss.

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Interspersed and tandem repeat sequences comprise the bulk of mammalian genomes. Interspersed repeats result from successive replication by transposable elements, such as Alu and long interspersed element type 1 (L1). Microsatellites are tandem repeats of 1-6 base pairs, among which poly(A) microsatellites are the most abundant in the human genome.

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Background: Performing laparoscopic procedures requires special training and has been documented as a significant source of surgical errors. "Warming up" before performing a task has been shown to enhance performance. This study investigates whether surgeons benefit from "warming up" using select video games immediately before performing laparoscopic partial tasks and clinical tasks.

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Article Synopsis
  • Experience in minimally invasive surgery is rapidly growing, making past abdominal surgeries with adhesions less of a barrier for laparoscopic procedures.* -
  • Surgeons must recognize the unique challenges posed by adhesions, as they often lead to converting laparoscopic surgery to open surgery (laparotomy).* -
  • This article discusses the impact of previous surgeries on adhesion formation and offers insights on laparoscopic techniques and adhesiolysis to minimize complications in reoperations.*
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Long interspersed elements type 1 (LINE-1s, or L1s) have impacted mammalian genomes at multiple levels. L1 transcription is mainly controlled by its 5' untranslated region (5'UTR), which differs significantly among active human and rodent L1 families. In this review, L1 expression and its regulation are examined in the context of human and rodent development.

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Paraesophageal hernias (PEHs) result from a defect of the diaphragmatic hiatus with a gradual enlargement of the hiatal opening, allowing abdominal contents to shift into the mediastinum. PEHs are often confused with sliding hiatal hernias; however, it is paramount that physicians understand the subtle presentation differences in the types of diaphragmatic incompetence, as treatment may vary greatly. The type IV giant PEH is a dangerous variant that, once recognized, usually requires surgical intervention.

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Recent studies employing genome-wide approaches have provided an unprecedented view of the scope of L1 activities on structural variations in the human genome, and further reinforced the role of L1s as one of the major driving forces behind human genome evolution. The rapid identification of novel L1 elements by these high-throughput approaches demands improved L1 functional assays. However, the existing assays use antibiotic selection markers or fluorescent proteins as reporters; neither is amenable to miniaturization.

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Recent transgenic studies on L1 retrotransposons have afforded exciting insights into L1 biology, and a unique opportunity to model their function and regulation in vivo. Thus far, the majority of the transgenic L1 mouse lines are constructed via pronuclear microinjection, a procedure that typically results in the integration of tandem arrayed transgenes. Transgene arrays are susceptible to repeat-induced gene silencing (RIGS) in both plants and animals.

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Azotobacter vinelandii is a soil bacterium related to the Pseudomonas genus that fixes nitrogen under aerobic conditions while simultaneously protecting nitrogenase from oxygen damage. In response to carbon availability, this organism undergoes a simple differentiation process to form cysts that are resistant to drought and other physical and chemical agents. Here we report the complete genome sequence of A.

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