Obstructed labour at Usmanu Danfodiyo university teaching hospital Sokoto: a five-year review

Background: Obstructed labour is an obstetric emergency and one of the major causes of maternal and perinatal morbidity and mortality in the developing countries, Nigeria inclusive. The aim of this study was to determine the prevalence, causes and feto-maternal outcome of cases of obstructed labour managed at Usmanu Danfodiyo University Teaching Hospital Sokoto from 1st January, 2014 to 31st December, 2018.Methods: This was a retrospective review of all cases of obstructed labour managed at Usmanu Danfodiyo University Teaching Hospital Sokoto over 5 years. List of cases managed during the study period was obtained and case notes were retrieved. Relevant information such as age, booking status, parity, educational status, address, causes, mode of delivery and both maternal and foetal outcomes were obtained from the case notes. Data analysis was done using statistical package for social sciences version 22 (SPSS Inc, Chicago, IL, USA).Results: A total two hundred and seventy-six cases of obstructed labour were managed out of the 15,452 total deliveries during the study period. This gives an obstructed labour prevalence of 1.79%. The major cause of obstructed labour identified in this study was Cephalopelvic disproportion (74.6%) and majority of the patients were delivered by emergency lower segment caesarean section (70.6%). Up to 32.3% of the patients had no maternal complications and also 42.3% of them had live birth with no fetal complication. However, 20.2% of these patients had ruptured uterus and 37.9% of them had still birth, while 19.8% had live birth complicated by birth asphyxia.Conclusions: This study has found that obstructed labour resulted in adverse maternal and perinatal outcome. Hence, there is need to prevent obstructed labour in order to avert this consequence

Perception and acceptability of bilateral tubal ligation among women attending antenatal clinic at Usmanu Danfodiyo university teaching hospital Sokoto

Background: Contraception can be defined as all temporary or permanent measures designed to prevent pregnancy. Bilateral tubal ligation is a surgical and permanent form of contraception offered to women who completed their family size or for limitation of family size due to medical condition. The practices of bilateral tubal ligation is limited in Sub-Saharan African countries, Nigeria inclusive because of great desire for a large family size, cultural and religious factors, misunderstanding and fear of the procedure. The aim of the study was to determine the perception and acceptability of bilateral tubal ligation as a form of contraception among women attending Antenatal clinic at Usmanu Danfodiyo University Teaching Hospital Sokoto.Methods: This was a cross sectional study conducted among women attending antenatal clinic between 1st of May to 31st of July, 2018. The information was obtained using a structured questionnaire to obtain the respondent’s socio-demographic characteristics, questions on perception and acceptability of bilateral tubal ligation. Data analysis was done with statistical package for social sciences version 22 (SPSS Inc, Chicago, IL, USA).Results: The study revealed that 73% of the respondents were aware of bilateral tubal ligation, but only 44% of them have good perception towards it. Majority of the respondents (63.8%) reject BTL for contraception. Most of their reasons were cultural believe (33.3%), regret (31.6%), religious believe (26.6%) and fear of surgery (8.5%).Conclusions: There was poor perception and low acceptability toward bilateral tubal ligation among the study population, mostly due to cultural and religious believes, as well as fear of regret, despite awareness of BTL among majority of the respondents

Fractal fronts of diffusion in microgravity

Spatial scale invariance represents a remarkable feature of natural phenomena. A ubiquitous example is represented by miscible liquid phases undergoing diffusion. Theory and simulations predict that in the absence of gravity diffusion is characterized by long-ranged algebraic correlations. Experimental evidence of scale invariance generated by diffusion has been limited, because on Earth the development of long-range correlations is suppressed by gravity. Here we report experimental results obtained in microgravity during the flight of the FOTON M3 satellite. We find that during a diffusion process a dilute polymer solution exhibits scale-invariant concentration fluctuations with sizes ranging up to millimetres, and relaxation times as large as 1,000 s. The scale invariance is limited only by the finite size of the sample, in agreement with recent theoretical predictions. The presence of such fluctuations could possibly impact the growth of materials in microgravity

Dopamine Signaling and Oxytocin Administration in a Rat Model of Empathy

The rat model is commonly used to study prosocial and empathetic behavior. However, the neural underpinnings of such behavior are unknown. We investigated the potential roles of two neurotransmitters, dopamine (DA) and oxytocin (OT), in prosocial behavior of rats. Our first experiment used a Pavlovian association task with two rats to investigate how DA release was modulated by social context. This experiment used fast-scan cyclic voltammetry (FSCV) to measure subsecond DA release in the nucleus accumbens (NAc). Consistent with previous work, cues that predicted reward were associated with increased DA release, and cues that predicted shock inhibited DA release non-discriminately across trial types. However, during shock trials, DA release was modulated by social context in two ways. First, reductions in DA release during shock trials were weaker in the presence of the conspecific, suggesting a consoling effect which was supported by behavioral indicators. Second, DA release during shock trials increased when shock was administered to the conspecific, suggesting that recording rats used the reactions of the conspecific to verify personal safety. We concluded that DA release is modulated by social context in that rats use social cues to optimize predictions about their own well-being. In our second experiment, we investigated the influence of oxytocin on prosocial behavior. Oxytocin was administered intranasally prior to a distress task in which a lever press resulted in reward delivery and one of three additional outcomes: no shock (‘reward-only’), shock to engaged rat (‘shock-self’), or shock to the conspecific (‘shock-other’). Results demonstrated that oxytocin did not significantly increase prosocial behaviors

Muon (g-2) Technical Design Report

The Muon (g-2) Experiment, E989 at Fermilab, will measure the muon anomalous magnetic moment a factor-of-four more precisely than was done in E821 at the Brookhaven National Laboratory AGS. The E821 result appears to be greater than the Standard-Model prediction by more than three standard deviations. When combined with expected improvement in the Standard-Model hadronic contributions, E989 should be able to determine definitively whether or not the E821 result is evidence for physics beyond the Standard Model. After a review of the physics motivation and the basic technique, which will use the muon storage ring built at BNL and now relocated to Fermilab, the design of the new experiment is presented. This document was created in partial fulfillment of the requirements necessary to obtain DOE CD-2/3 approval

Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm

We present a new measurement of the positive muon magnetic anomaly, a_{μ}≡(g_{μ}-2)/2, from the Fermilab Muon g-2 Experiment using data collected in 2019 and 2020. We have analyzed more than 4 times the number of positrons from muon decay than in our previous result from 2018 data. The systematic error is reduced by more than a factor of 2 due to better running conditions, a more stable beam, and improved knowledge of the magnetic field weighted by the muon distribution, ω[over ˜]_{p}^{'}, and of the anomalous precession frequency corrected for beam dynamics effects, ω_{a}. From the ratio ω_{a}/ω[over ˜]_{p}^{'}, together with precisely determined external parameters, we determine a_{μ}=116 592 057(25)×10^{-11} (0.21 ppm). Combining this result with our previous result from the 2018 data, we obtain a_{μ}(FNAL)=116 592 055(24)×10^{-11} (0.20 ppm). The new experimental world average is a_{μ}(exp)=116 592 059(22)×10^{-11} (0.19 ppm), which represents a factor of 2 improvement in precision

Design and construction of the MicroBooNE detector

This paper describes the design and construction of the MicroBooNE liquid argon time projection chamber and associated systems. MicroBooNE is the first phase of the Short Baseline Neutrino program, located at Fermilab, and will utilize the capabilities of liquid argon detectors to examine a rich assortment of physics topics. In this document details of design specifications, assembly procedures, and acceptance tests are reported

Measurement of the mass difference m(D-s(+))-m(D+) at CDF II

We present a measurement of the mass difference m(D-s(+))-m(D+), where both the D-s(+) and D+ are reconstructed in the phipi(+) decay channel. This measurement uses 11.6 pb(-1) of data collected by CDF II using the new displaced-track trigger. The mass difference is found to be m(D-s(+))-m(D+)=99.41+/-0.38(stat)+/-0.21(syst) MeV/c(2)

Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm

We present the first results of the Fermilab Muon g-2 Experiment for the positive muon magnetic anomaly $a_\mu \equiv (g_\mu-2)/2$. The anomaly is determined from the precision measurements of two angular frequencies. Intensity variation of high-energy positrons from muon decays directly encodes the difference frequency $\omega_a$ between the spin-precession and cyclotron frequencies for polarized muons in a magnetic storage ring. The storage ring magnetic field is measured using nuclear magnetic resonance probes calibrated in terms of the equivalent proton spin precession frequency ${\tilde{\omega}'^{}_p}$ in a spherical water sample at 34.7$^{\circ}$C. The ratio $\omega_a / {\tilde{\omega}'^{}_p}$, together with known fundamental constants, determines $a_\mu({\rm FNAL}) = 116\,592\,040(54)\times 10^{-11}$ (0.46\,ppm). The result is 3.3 standard deviations greater than the standard model prediction and is in excellent agreement with the previous Brookhaven National Laboratory (BNL) E821 measurement. After combination with previous measurements of both $\mu^+$ and $\mu^-$, the new experimental average of $a_\mu({\rm Exp}) = 116\,592\,061(41)\times 10^{-11}$ (0.35\,ppm) increases the tension between experiment and theory to 4.2 standard deviationsComment: 10 pages; 4 figure