A vibration system with two homodromy exciters operated in different rotational speed is established to investigate whether the phenomenon of bistable phase difference intervals exists in the times-frequency vibration synchronization system. Some constructive conclusions are proposed. (1) By introducing an average angular velocity perturbation parameter and two sets of phase difference perturbation parameters and , the frequency capture criterion and the necessary criteria for realizing the times-frequency...
7h
Many researchers have designed the dynamic models to study the vehicle-engine vibration. However, the existing mechanical models are relatively simple, and the analysis of engine vibration damage is discussed rarely. In this paper, we proposed the models of coupling dynamics and damage classification of vehicle-engine vibration. The key advantages of these proposed models are (1) the finite elements method is adopted for the rotor and casing system, and the complex structure with multirotor and multicasing...
7h
The objective of the study was to assess the effect of diets supplemented with Ziziphus spina-christi leaf on digestive fermentation, antioxidant status, and haemato-biochemical indices of growing rabbits. Ziziphus leaves (ZLs) of Ziziphus spina-christi were collected from Sidr trees scattered throughout the city of Medina, Saudi Arabia. Three formulated diets containing 0, 10, and 20 g Ziziphus spina-christi/Kg diet as supplementation were offered ad libitum. The organic matter content of ZL was...
19h
Based on the field theory in physics, the thesis applies model construction and other methods to apply the research on the agglomeration problem of colleges’ and universities’ innovation teams and constructs the growth field model of colleges’ and universities’ innovation teams. The conclusions show that the “growth field” of the colleges’ and universities’ innovation team is composed of two elements: “hidden growth factor” and “dominant growth factor,” which have the directional and force acting;...
19h
Synchronous parathyroid and papillary thyroid carcinoma are extremely rare. To our knowledge, only 15 cases have been reported in the last four decades. We describe a 50-year-old female without significant past medical or family history and no previous trauma presented with left heel pain that prompted her to seek medical attention. Physical examination was notable for a painless nodule at the left thyroid lobe. Laboratory evaluation showed a serum calcium level of 14.3 mg/dL (8.6–10.3 mg/dL) and...
19h
This paper considers the motion coordination problem of autonomous vehicles in an intersection of a traffic network. The featured challenge is the design of an intersection traffic manager, in the form of a supervisory control algorithm, that regulates the motion of the autonomous vehicles in the intersection. We cast the multivehicle coordination task as an optimization problem, with a one-dimensional search-space. A model- and optimization-based heuristic method is employed to compute the control...
19h
This study aimed to determine the impact of land use on organic carbon (OC) pools of soils with contrasting native organic matter (OM) content. Surface (0–15 cm) soils of four land uses (cropland, orchard, grassland, and fallow) were collected from four agroecological zones (AEZs) of Bangladesh with different OM content (AEZ-7: very low, −3: low, −9: medium, and −5: high). Bulk soils were physically fractionated into particulate and mineral associated OM (POM and MOM: >53 and
19h
The elucidation of the complexation of lapachol and its derivatives to Fe2+ cation has been done using the density functional theory (DFT). This complexation has been limited to bidentate and tridentate to Fe2+ cation. Geometry optimizations have been implemented in gas and solution phase (water, acetonitrile, chlorobenzene, benzene, and toluene) for ligands at B3LYP/6-311++G (d,p) level of theory using B3LYP/6-31+G(d,p) optimized data as starting point. But, the geometrical optimizations in solution...
19h
Interactions in microservice systems are complex due to three dimensions: numerous asynchronous interactions, the diversity of asynchronous communication, and unbounded buffers. Analyzing such complex interactions is challenging. In this paper, we propose an approach for interaction analysis using model checking techniques, which is supported by the Process Analysis Toolkit (PAT) tool. First, we use Labeled Transition Systems (LTSs) to model interaction behaviors in microservice systems as sequences...
19h
Background. Alzheimer’s disease (AD) is a common health condition affecting senile people and leads to severe cognitive dysfunctions. Acupuncture has been shown to be a possible alternative natural remedy for AD in some animal studies. Objective. To perform a systematic review to identify the effect of verum-acupuncture compared with sham-acupuncture on learning and memory performance among animal models of AD. Methods. Experimental animal studies of treating AD via verum- and sham- acupuncture were...
19h
The complex systems with edge computing require a huge amount of multifeature data to extract appropriate insights for their decision making, so it is important to find a feasible feature selection method to improve the computational efficiency and save the resource consumption. In this paper, a quantum-based feature selection algorithm for the multiclassification problem, namely, QReliefF, is proposed, which can effectively reduce the complexity of algorithm and improve its computational efficiency....
19h
The rapidly expanding body of knowledge about the roles of genomics and the immune system in cancer has enabled the development of therapies targeted to specific molecular alterations or other biologic characteristics, such as those implicated in immune suppression. However, genomics has also revealed a complicated reality about malignancies that requires a major shift in the therapy paradigm: away from tumor type-centered and toward gene-directed, histology-agnostic treatment, which is individualized...
7h
To describe a novel surgical therapy for the treatment of medically refractory neuropathic cough, in which carefully selected subjects undergo surgical transection of the internal branch of the superior laryngeal nerve (iSLN).
8h
The present study aimed to elucidate opinions regarding comprehensibility of audiometry display formats among otolaryngologists in Japan, and to identify the characteristics of otolaryngologists’ cognitive processes for audiometry.
8h
Telemedicine and e-Health, Ahead of Print.
8h
Kar challenges doctors to consider why we chose medicine and what motivates us to continue.1 He offers insight as to his reasons but leaves more questions than answers.Family influence contributed to...
8h
Kar challenges doctors to consider why we chose medicine and what motivates us to continue.1 He offers insight as to his reasons but leaves more questions than answers.Family influence contributed to...
9h
“The good physician treats the disease; the great physician treats the patient who has the disease.” William OslerMost professions probably contain a tension between the vocational ideal and the...
10h
Medical leaders have welcomed the government’s “belated” decision to expand covid-19 testing capacity but said it has taken too long to commence and is still far too limited.On 27 March the...
10h
For contact tracing to be viable, all sections of the community must be willing to be contacted by the NHS or public health staff.1 The community includes “overseas visitors” on the receiving end of...
10h
Healthcare staff often have a positive experience of quality improvement (QI) compared with the daily experience of how their organisations are led and managed.1 This indicates that some of the...
10h
Kar asks whether being a doctor is a vocation.1 Use of the word vocation seems to have declined over the past few decades, having reached a peak in the interwar period.2 This is especially...
10h
bmj;368/mar31_15/m1220/FAF1faJohn Thompson Rowling (“JTR”) was a retired consultant surgeon. He worked in Sheffield at the Royal Hospital and later at the Royal Hallamshire Hospital. He was born in...
10h
“The good physician treats the disease; the great physician treats the patient who has the disease.” William OslerMost professions probably contain a tension between the vocational ideal and the...
12h
Medical leaders have welcomed the government’s “belated” decision to expand covid-19 testing capacity but said it has taken too long to commence and is still far too limited.On 27 March the...
13h
For contact tracing to be viable, all sections of the community must be willing to be contacted by the NHS or public health staff.1 The community includes “overseas visitors” on the receiving end of...
13h
Healthcare staff often have a positive experience of quality improvement (QI) compared with the daily experience of how their organisations are led and managed.1 This indicates that some of the...
14h
Kar asks whether being a doctor is a vocation.1 Use of the word vocation seems to have declined over the past few decades, having reached a peak in the interwar period.2 This is especially...
14h
bmj;368/mar31_15/m1220/FAF1faJohn Thompson Rowling (“JTR”) was a retired consultant surgeon. He worked in Sheffield at the Royal Hospital and later at the Royal Hallamshire Hospital. He was born in...
14h
bmj;368/mar31_14/m1224/FAF1faEdward Williams Hughes, known as Eddie to all his medical colleagues, was a consultant physician to the Cornwall clinical area. He was born in north Wales, where his...
15h
bmj;368/mar31_13/m1225/FAF1faAfter house jobs Roger Cull was a Medical Research Council fellow and did his PhD on the rat synapse. He was clinical lecturer at the National Hospital, Queen Square, in...
15h
bmj;368/mar31_12/m1223/FAF1faGordon Alexander Dyce Lavy was born in Nablus, Palestine. His father was a doctor as well as a clergyman.He was educated at Seaford College and moved on to study medicine...
15h
bmj;368/mar31_11/m1219/FAF1faPatricia Joy Stuart had to fight a school that did not teach chemistry to girls to get to medical school. There she enjoyed rowing, and was pictured at a race on the back...
15h
The subtitle of Izquierdo and colleagues’ excellent article might be more accurate if changed from “Advanced age is no barrier to the benefits of tailored exercise” to “Advanced age is a strong...
16h
bmj;368/mar31_8/m1298/FAF1faAndrew Parsons /10 Downing Street/Anadolu Agency /Getty ImagesTeams begin work setting up the Nightingale Hospital London at the Excel conference centre in east London on...
17h
The BMA has warned that doctors are still being placed at “considerable risk” by shortages of personal protective equipment, despite government assurances that enough supplies are being delivered.On...
18h
AbstractObjectiveTo compare the risk of mortality among people with opioid use disorder on and off opioid agonist treatment (OAT) in a setting with a high prevalence of illicitly manufactured...
19h
Clinical characteristics of 113 deceased patients with coronavirus disease 2019: retrospective study
In the fourth paragraph of the results section of this paper by Chen and colleagues (BMJ 2020;368:m1091, doi:10.1136/bmj.m1091, published 26 March 2020), the percentage of deceased patients who had...
20h
The last author of this letter by Peter G Lloyd-Sherlock et al (BMJ 2020;368:m1164, doi:10.1136/bmj.m1164) has asked to be removed from the article. Luis Miguel Gutierrez did not approve a revision...
20h
What you need to knowHealthcare professionals need to be alert to the impact of tinnitus on wellbeing and quality of life and provide reassurance at the first point of contactTinnitus support and...
20h
No doctor at the beginning of their career imagines that one day they might be standing in the dock of a Crown Court facing criminal charges. Even more difficult to envisage is that after a not...
20h
What you need to knowThinking of quality improvement (QI) as a principle-based approach to change provides greater clarity about (a) the contribution QI offers to staff and patients, (b) how to...
20h
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