Spiral Slotted Microstrip Antenna Design for 700 MHz Band Application

This work describes the design and implementation of spiral slotted microstrip antenna. Recently, just like other countries, in Mexico, terrestrial digital television has been implemented (analogic shutdown); as a consequence, the 700 MHz UFH Band (698–806 MHz) has been opened to new telecommunications services, particularly wireless mobile communication. This technological advance represents a radio mobile antenna design challenge because it is necessary to design an antenna whose dimensions must be small enough, which satisfies gain, resonance frequency, and bandwidth requirements and is of low cost

Lower urinary tract symptoms secondary to a vaginal leiomioma the female prostate: case report

This is a case report of lower urinary tract symptoms secondary to a vaginal leiomioma “the female prostate”. A 45-year-old female patient with no significant personal history, sensation of a vaginal foreign body accompanied by lower urinary tract symptoms, on vaginal physical examination with a 7×7 cm deep tumor, increased consistency, not painful, without hemorrhage. Magnetic resonance imaging with hypointense T1 and T2 images, few linear hyperintense areas in T2, homogeneous postgadolinium enhancement 69×66×53 mm, solid tumor dependent on the vaginal vault. Tumor markers CA 19-9: 5.98 U/ml, CEA: 1.09 ng/ml and CA 125: 11.73 U/ml. Open surgery was performed in which a 8×6 cm tumor was found in the vaginal vault dependent on the posterior wall of the vagina. Histopathological report: conventional leiomyoma measuring 9×7.5 cm in long axes, without nuclear atypia. With resolution of symptoms in the lower urinary tract, with normal urinary frequency, without presence of urgency, without urinary incontinence or voiding symptoms. It is important to identify and diagnose lower urinary tract symptoms always, since they could be an initial manifestation of pelvic tumors in which the treatment approach should not be delayed.

Female pelvic floor myofascial syndrome and its relationship with lower urinary tract storage symptoms

Background: Pelvic floor myofascial syndrome is defined as non-articular skeletal muscle pain, characterized by the presence of trigger points. Present in 14-23% of patients with chronic pelvic pain. It has an impact on urinary function. The prevalence of lower urinary tract symptoms is 15-67%, with storage symptoms predominating in patients with PFMS. Objective was to determine the relationship between female pelvic floor myofascial syndrome and lower urinary tract storage symptoms. Methods: This was a retrospective, observational, descriptive, cross-sectional, homodemic and single-center study at University Hospital Doctor José Eleuterio González, Monterrey, Nuevo Leon, Mexico from period one from April 1st to June 30th, 2022. Type of non-probabilistic convenience sampling. Database in Excel 2016, Pearson's Х² statistical test in the SPSS V25® program. Results: 136 patients with PFMS and LUTS storage were evaluated. The most frequent age group was 46-55 years with 33.1% (N=45); the marital status was married with 74.3% (N=101). In relation to education 55.9% (N=76) with a bachelor's degree. The most frequent storage symptoms were nocturia 67.6% (N=92) p<0.05, frequency 60.3% (N=82) p=0.512, urgency 57.4% p<0.005. Conclusions: Knowing the correlation between PFMS and storage LUTS can guide specific pain treatment with review of urinary symptoms. In patients with nocturia, frequency, urgency, SUI and UUI, a physical examination should be performed and included trigger points in the pelvic floor. Nocturia is the most prevalent storage LUTS in PFMS

Urethro-cutaneous fistula: a rare complication in anti-incontinence surgery with trans-obturator tapes sling

This case report presents a rare complication of tension-free mid-urethral tape surgery by the obturator approach (TOT) in the form of a urethro-cutaneous fistula. The patient underwent successful surgical repair, highlighting the importance of intraoperative cystoscopy to minimize surgical risks and complications. Tension-free mid-urethral tape surgery is a commonly performed procedure for the treatment of stress urinary incontinence (SUI). However, complications can occur, albeit rarely. In this case, a 52-year-old female patient developed a urethro-cutaneous fistula following TOT surgery. The fistula was identified by the presence of urine leakage at the right inguinal level, leading to significant distress and discomfort for the patient. Prompt diagnosis and appropriate management are crucial in such cases. The patient underwent surgical repair, which involved excision of the fistulous tract. The procedure was successful, resulting in complete resolution of the fistula and restoration of normal urinary function. In conclusion, this case report highlights the occurrence of a rare complication, namely a urethro-cutaneous fistula, following TOT surgery. The successful surgical repair emphasizes the importance of prompt diagnosis and appropriate management. Furthermore, the authors propose that an intraoperative cystoscopic evaluation be considered, even after a TOT procedure. Especially in cases that present risk factors or in hospital-school institutions. By implementing this practice, surgeons can enhance patient safety and improve surgical outcomes in anti-incontinence procedures

Inside the Outbreak of the 2009 Influenza A (H1N1)v Virus in Mexico

Influenza viruses pose a threat to human health because of their potential to cause global disease. Between mid March and mid April a pandemic influenza A virus emerged in Mexico. This report details 202 cases of infection of humans with the 2009 influenza A virus (H1N1)v which occurred in Mexico City as well as the spread of the virus throughout the entire country.From May 1st to May 5th nasopharyngeal swabs, derived from 751 patients, were collected at 220 outpatient clinics and 28 hospitals distributed throughout Mexico City. Analysis of samples using real time RT-PCR revealed that 202 patients out of the 751 subjects (26.9%) were confirmed to be infected with the new virus. All confirmed cases of human infection with the strain influenza (H1N1)v suffered respiratory symptoms. The greatest number of confirmed cases during the outbreak of the 2009 influenza A (H1N1)v were seen in neighbourhoods on the northeast side of Mexico City including Iztapalapa, Gustavo A. Madero, Iztacalco, and Tlahuac which are the most populated areas in Mexico City. Using these data, together with data reported by the Mexican Secretariat of Health (MSH) to date, we plot the course of influenza (H1N1)v activity throughout Mexico.Our data, which is backed up by MSH data, show that the greatest numbers of the 2009 influenza A (H1N1) cases were seen in the most populated areas. We speculate on conditions in Mexico which may have sparked this flu pandemic, the first in 41 years. We accept the hypothesis that high population density and a mass gathering which took in Iztapalapa contributed to the rapid spread of the disease which developed in three peaks of activity throughout the Country

Reorganization of Functional Networks in Mild Cognitive Impairment

Whether the balance between integration and segregation of information in the brain is damaged in Mild Cognitive Impairment (MCI) subjects is still a matter of debate. Here we characterize the functional network architecture of MCI subjects by means of complex networks analysis. Magnetoencephalograms (MEG) time series obtained during a memory task were evaluated by synchronization likelihood (SL), to quantify the statistical dependence between MEG signals and to obtain the functional networks. Graphs from MCI subjects show an enhancement of the strength of connections, together with an increase in the outreach parameter, suggesting that memory processing in MCI subjects is associated with higher energy expenditure and a tendency toward random structure, which breaks the balance between integration and segregation. All features are reproduced by an evolutionary network model that simulates the degenerative process of a healthy functional network to that associated with MCI. Due to the high rate of conversion from MCI to Alzheimer Disease (AD), these results show that the analysis of functional networks could be an appropriate tool for the early detection of both MCI and AD

Neuronal Deletion of Caspase 8 Protects against Brain Injury in Mouse Models of Controlled Cortical Impact and Kainic Acid-Induced Excitotoxicity

system. mice demonstrated superior survival, reduced seizure severity, less apoptosis, and reduced caspase 3 processing. Uninjured aged knockout mice showed improved learning and memory, implicating a possible role for caspase 8 in cognitive decline with aging.Neuron-specific deletion of caspase 8 reduces brain damage and improves post-traumatic functional outcomes, suggesting an important role for this caspase in pathophysiology of acute brain trauma

Search for a vector-like quark T′ → tH via the diphoton decay mode of the Higgs boson in proton-proton collisions at s \sqrt{s} = 13 TeV

A search for the electroweak production of a vector-like quark T′, decaying to a top quark and a Higgs boson is presented. The search is based on a sample of proton-proton collision events recorded at the LHC at = 13 TeV, corresponding to an integrated luminosity of 138 fb−1. This is the first T′ search that exploits the Higgs boson decay to a pair of photons. For narrow isospin singlet T′ states with masses up to 1.1 TeV, the excellent diphoton invariant mass resolution of 1–2% results in an increased sensitivity compared to previous searches based on the same production mechanism. The electroweak production of a T′ quark with mass up to 960 GeV is excluded at 95% confidence level, assuming a coupling strength κT = 0.25 and a relative decay width Γ/MT′ < 5%

Observation of the Rare Decay of the η Meson to Four Muons

A search for the rare η→μ+μ−μ+μ− double-Dalitz decay is performed using a sample of proton-proton collisions, collected by the CMS experiment at the CERN LHC with high-rate muon triggers during 2017 and 2018 and corresponding to an integrated luminosity of 101  fb−1. A signal having a statistical significance well in excess of 5 standard deviations is observed. Using the η→μ+μ− decay as normalization, the branching fraction B(η→μ+μ−μ+μ−)=[5.0±0.8(stat)±0.7(syst)±0.7(B2μ)]×10−9 is measured, where the last term is the uncertainty in the normalization channel branching fraction. This work achieves an improved precision of over 5 orders of magnitude compared to previous results, leading to the first measurement of this branching fraction, which is found to agree with theoretical predictions