Use Of Formula Research Articles

STUDY OF GRAIN FLOW IN A CYLINDRICAL VIBRATING SIEVE

The paper proposes a modified hydrodynamic model of steady grain flow of a heterogeneous mixture on the surface of a vertical cylindrical vibrating sieve. The main hypothesis of the model is the dependence of the mixture's porosity in the moving annular layer on the particle velocity. A linear dependence is assumed, where an increase in velocity leads to an increase in the mixture's porosity. To determine the grain flow velocity, the problem is reduced to solving a non-homogeneous Bessel-type differential equation. To simplify the solution, the "freezing" method of the variable coefficient is applied, which is permissible due to the relatively small thickness of the moving grain mixture layer compared to the sieve radius. As a result of this approximation, the velocity dependence on the radial coordinate is expressed using elementary functions. A compact formula for calculating the maximum grain flow velocity and the average velocity is derived by integrating the respective expression in elementary functions. Additionally, an approximate formula for calculating the sieve's throughput based on the mass of the overflow fraction is proposed. Simpson's integration method is used to avoid complex calculations of special functions for large arguments via asymptotic formulas. The study shows that the sieve's throughput is significantly affected by the porosity of the grain mixture. To assess the accuracy of the approximate formulas, numerical integration of the original Bessel-type differential equation was performed on a computer. Comparative analysis of the results confirmed that the proposed simplifications introduce minimal errors and ensure the adequacy of the theoretical results. Thus, by transitioning to the simplified differential equation, approximate formulas for calculating the key characteristics of grain flow in a vertical cylindrical vibrating sieve were developed and tested, taking into account the porosity variation of the mixture depending on the particle velocity. The generalization of theoretical results obtained using hydrodynamic models of grain mixture flow in a pseudo-fluidized state under vibrations only slightly complicated the model but resulted in compact and practically convenient formulas for use.

Accurate birth weight prediction from fetal biometry using the Gompertz model

ObjectivesMonitoring of fetal growth and estimation of birth weight is of clinical importance. During pregnancy, ultrasound fetal biometry values including femur length, head circumference, abdominal circumference, biparietal diameter are measured and used to place fetuses on “growth charts”. There is no simple growth-model-based, predictive formula in use for fetal biometry. Estimation of fetal weight at birth currently depends on ultrasound data taken a short time before birth. Study designOur cohort (“Seethapathy cohort”) consists of ultrasound biometry measurements and other data for 774 pregnant women in Chennai, India, 2015–2017. We use the Gompertz model, a standard model for constrained growth, with just three intuitive parameters, to model the growth of fetal biometry, and a machine learning (ML) model trained on these parameters to predict birth weight (BW). ResultsThe Gompertz model convincingly fits the growth of fetal biometry values. Two Gompertz parameters—t0 (inflection time) and c (rate of decrease of growth rate)—seem universal to all fetuses, while the third, A, is an overall scale specific to each fetus, capturing individual variation. On the Seethapathy cohort we can infer A for each fetus from ultrasound data available by the 24 or 35 weeks. Our ML model predicts birth weight with < 8 % error, outperforming published methods that have access to late-term ultrasound data. The same model gives an 8.4 % error in BW prediction on an independent validation cohort of 365 women. ConclusionsThe Gompertz model fits fetal biometry growth and enables birth weight estimation without need of late-term ultrasounds. Aside from its clinical predictive value, we suggest its use for future growth standards, with almost all variation described by a single scale parameter A.

МЕТОДИКА ВЫБОРА РЕСУРСОСБЕРЕГАЮЩИХ ОРГАНИЗАЦИОННО-ТЕХНОЛОГИЧЕСКИХ РЕШЕНИЙ НА ЭТАПЕ ЗАВЕРШЕНИЯ ЖИЗНЕННОГО ЦИКЛА ЗДАНИЙ

The article discusses the main aspects of resource and energy conservation at the stage of completion of the life cycle of buildings. It is shown that the stage of completion of the life cycle is extremely important for buildings and other capital construction projects and requires a systematic approach to the choice of organizational and technological solutions for the liquidation or reconstruction of the building. The concept of the final stage of the life cycle of buildings has been clarified. The importance of making resource-saving organizational and technical decisions taken at the stage of completion of the life cycle of buildings is shown. Indicators have been developed for making appropriate organizational and technical decisions. The methodology of choosing organizational and technological solutions at the stage of completion of the life cycle of buildings, taking into account resource conservation, is presented. The methodology includes several stages, the results of which are a star-shaped infographic model of the values of organizational and technological solutions, which is created at the stage of completion of the life cycle of buildings. The methodology takes into account the indicators of resource and energy consumption for the implementation of various organizational and technological solutions. Calculation formulas for use in the infographic model are proposed: material consumption, labor costs of workers, financial costs labor costs of construction machines and mechanisms energy intensity of construction reconstruction. The proposed model is used to evaluate and select options for the feasibility of reorganizing buildings at the end of their life cycle, taking into account resource and energy conservation.

Effects of Different Agricultural Waste Composts on Cabbage Yield and Rhizosphere Environment

The return of agricultural waste to the field is one of the most effective strategies of increasing crop yield, improving the soil’s physicochemical properties, and improving the soil rhizosphere environment. In the present study, sheep manure (SM), cow manure (CM), tail vegetable (TV), mushroom residue (MR), and corn straw (CS) were used as raw materials, and no fertilization (CK1) and local commercial organic fertilizer (CK2) treatments were used as controls. Eight composts were set up using specific mass ratios of different compost materials. After fermentation, field experiments were conducted to determine the cabbage yield, soil’s physicochemical properties, and soil rhizosphere conditions. The eight composts increased the soil organic matter and nutrient contents significantly. Among the eight fermentation formulas, T6 (CM:CS:TV:SM = 1:1:2:6), T7 (MR:CS:TV:SM = 1:1:2:6), and T8 (CM:MR:CS:TV:SM = 1:1:1:2:5) were relatively effective. Therefore, high-throughput sequencing was performed on T6, T7, T8, CK1, and CK2. T6, T7, and T8 exhibited increased relative abundance of Proteobacteria, Actinomycetes, and Firmicutes, while the Acidobacteria abundance was decreased. In addition, Ascomycota’s and Basidiomycetes’ relative abundance decreased, and the oil chytrid and mortierella increased. The microbial community structure was affected significantly by pH, electrical conductivity, available potassium, available nitrogen, and organic matter. In general, the three composts increased yield by improving the soil’s physicochemical properties, fertility, and microbial community structure. Among them, T6 had the most significant effect and is the optimal formula for use as a local organic cabbage fertilizer, and it could facilitate sustainable agricultural development.

Optimasi Formula Nanohydrogel Icariin Sebagai Afrodisiak.

Decreased sexual desire is a type of sexual dysfunction that is common in men. Sexual dysfunction can be controlled by using herbs that have activity as aphrodisiacs. Many herbs are efficacious as aphrodisiacs, one of which is the icariin compound from the epimedium plant. However, the use of oral drugs must go through absorption and distribution processes to cause pharmacological effects, besides that the first pass effect that occurs in the liver reduces the bioavailability of the drug. This study aims to optimize the icariin nanohydrogel formula for use as a topical aphrodisiac, preparation characteristics, and the effect of nanohydrogel on the diffusion of icariin compounds. Formula optimization was carried out using the Simplex Latice Design (SLD) method with variations of carbopol, HPMC and TEA. Quantitative data analysis of aphrodisiac activity was analyzed by One Sample T-Test. The optimal formulation is obtained at a ratio of 1.415 (carbopol) : 2.168 (HPMC) : 1.208 (TEA), resulting in a clear, cucumber fish oil-scented preparation that is stable, with a viscosity of 19753.3 cps and an adhesive force of 0.387 seconds, pH 6.1, as well as a spreading power with a diameter of 5.56 cm. The hedonic test conducted on 4 formulas with the addition of fragrance shows that formula 3 is preferred by the respondents, followed by formula 4, formula 2, and formula 1. The cumulative amount of the penetrated preparation is 0,174 µg/cm2 at 10 minutes, 0,283 µg/cm2 at 15 minutes, 0,398 µg/cm2 at 30 minutes, 0,498 µg/cm2 at 60 minutes, and 0,603 µg/cm2 at 120 minutes.

Pseudomonas fluorescens SP007S Formulations in Controlling Soft Rot Disease and Promoting Growth in Kale

Kale has gained popularity as a healthy food choice due to its rich nutrient profile. However, kale production systems are also affected by various pests and diseases, especially plant pathogenic bacteria, such as Pectobacterium carotovorum. The purpose of this research was to investigate the biocontrol activity of the Pseudomonas fluorescens strain SP007s and develop a formulation that provides stability, long shelf life, and disease control, as well as promoting growth in kale; we expect this formulation to have further commercial applications in the cultivation of kale. The results indicated that a unique mixture of paper sludge, sugar sludge, and glycerol at 40% relative humidity promoted SP007 survival for 6 months at room temperature (30 °C) with measures of 5.92 × 106 CFU/g. This treatment maintained the control efficacy of P. carotovorum in infected soil within 28 days of soil drenching. We evaluated the SP007s formula for controlling soft rot disease in greenhouse conditions, and our results revealed that it can reduce the disease in kale by 65.2% and promotes growth in terms of canopy width, shoot height, number of leaves per plant, fresh weight, and dry weight, which were superior to the control. In addition, the formula can induce the accumulation of endogenous salicylic acid and phenolic compounds, as well as a systemic acquired resistance pathway in the plant defense system. Therefore, the formula of SP007s can be a promising novel biocontrol formula for use in kale production, as it promotes plant growth and acts against P. carotovorum causal soft rot disease.

Modification of ARL for detecting changes on the double EWMA chart in time series data with the autoregressive model

This research aims to derive the average run length (ARL) evaluation of the double exponentially weighted moving average (double EWMA) control chart for observation data that follows exponential white noise in a time series model with an autoregressive model. Since most real-world data is automatically correlated, autoregressive models are available. Comparisons were made between the ARLs obtained using the explicit formula and the numerical integral equation (NIE) approach. The results showed that the explicit formula's use of the ARL outperformed the NIE approach in terms of computation time. After that, the efficacy of the exponentially weighted moving average (EWMA) and double EWMA charts is then compared using the suggested explicit ARL formula. The ARL of the double EWMA chart was found to perform better than the ARL of the EWMA chart in all situations. It also uses natural gas and diesel prices on stock exchanges around the world as cases studies. The results show that the double EWMA chart has better detection sensitivity than the EWMA chart, and the results are consistent with the experimental results. As a result, the sensitivity of the double EWMA chart in detecting changes makes it a good alternative for monitoring processes with real-world data.

Inference and extrapolation in finite populations with special attention to clustering

Statistical inference in economics is commonly based on formulas assuming infinite populations. We present appropriate formulas for use when sampling from finite populations, with special attention given to issues of treatment effects and to issues of clustering. Issues of whether to apply finite population corrections are often subtle, and appropriate corrections may depend on difficult to observe parameters, leaving the investigator only with bounds on relevant estimator variances.

Formation of the CH/CD molecules through radiative association of C with H/D

ABSTRACT Reaction rate constants have been calculated for the formation of CH and CD molecules through radiative association of C and H/D atoms in their ground states. Quantum mechanical and semiclassical/classical methods were used to obtain the reaction cross-sections. Shape resonances and inverse pre-dissociation are accounted for with Breit–Wigner theory. The potential, permanent/transition dipole moment curves and experimental pre-dissociation widths are taken from the literature. The resulting reaction rate constants were fitted to the Kooij formula for use in astrochemical modelling. Our rate constant is 3.5 × 10−17 cm3 s−1 at 100 K and it peaks at 20 K, where it is 8.0 × 10−17 cm3 s−1. These values are larger than what has been obtained in earlier studies but not large enough to account for the interstellar abundance of CH.

Reliability Analysis of Floors for Vibration Performance

Abstract In this paper, the vibration serviceability of a two-bay composite floor under walking excitation was evaluated via both deterministic and stochastic methods. The floor framing was irregular with one bay being about 25 % longer than the other. Using the deterministic approach recommended by a widely recognized design guide, it was predicted that the vibration levels in both floor bays due to footfall were deemed acceptable in terms of human comfort in an office environment. The stochastic approach took account of random variations in the floor modal properties, the loading and the tolerance vibration limit. Statistical properties of the random variables were determined by reference to contemporary floor vibration guidelines as well as a modal analysis of the finite element model of the floor. Close-formed formulas for use with the first-order reliability method were developed to predict the failure probability of the floor. Reliability analysis using Monte Carlo simulation with a sufficiently large number of trials was also performed. Both of the analytical and numerical reliability analyses revealed an exceedance probability of around 36 % for the longer floor bay, which was in marked contrast to the deterministic method. For the shorter floor bay, a failure probability of practically zero was found by the random procedures. Furthermore, the excellent agreement between the results acquired from the first-order reliability method and the Monte Carlo simulation highlights the effectiveness of the former approach which requires much less computation effort.

A methodology for CHF prediction in VVER rod bundles

The critical heat flux (CHF) is an important thermal–hydraulic parameter that must be determined during the design of water-cooled reactors to ensure safety of operation. In this paper, a methodology is proposed to predict the CHF in VVER11VVER is a transliterated acronym for “vodo-vodyanoi energetichesky reaktor” which literally means “water-water power reactor” (Nuclear Energy Agency, 2021). rod bundles. A whole-reactor model of VVER-1000 is implemented in RELAP-SCDAPSIM, and, based on the bundle-average approach, the parameters of the hot channel are used to assess four CHF predictors (i.e., the 2006 Groeneveld look-up table (LUT), and the Bowring, W-3, Biasi, and OKB-Gidropress correlations) upon comparison with the 2011 Bobkov LUT. A brief critique is given of the correction factors for both the Groeneveld and Bobkov LUTs. The effects of channel diameter and non-uniform axial heat flux on the predicted values of CHF in subcooled conditions are also studied. The performance and time complexity of the standard and Bourke trilinear interpolation algorithms are assessed for use with LUTs in safety codes. It has been concluded that the non-uniform axial heat flux does not affect the CHF in subcooled conditions and that the Groeneveld diameter factor exponent gives better predictability of the CHF in VVER rod bundles over the Tanase and Wong exponent correlations. Additionally, the Groeneveld LUT has been found to nearly reproduces the Bobkov LUT CHF values when used in conjunction with the Bobkov heated length factor. Values of MDNBR equal to 1.83 and 1.96 can be used as thermal limits at 12% overpower when the Bowring and W-3 correlations, respectively, are used in subcooled conditions. The standard and Bourke algorithms nearly exhibit the same average CPU time. The Bourke algorithm, however, is less affected by noise. Further research is needed to ensure the smoothness of the Bobkov LUT and to derive reactor type-dependent correction factor formulas for use with the Groeneveld LUT.

New formula for selection of an appropriate left-sided double-lumen tube size in thoracic anaesthesiology

BackgroundIn thoracic anaesthesiology, double-lumen endobronchial tubes are used to provide one-lung ventilation. However, selecting the appropriate double-lumen endobronchial tube size to provide the most suitable ventilation with minimal damage is a challenging task for anaesthesiologists. There is no standardised approach to this issue. The present study aimed to develop a standardised mathematical formula for determining the appropriate size of the left-sided double-lumen endobronchial tube in thoracic anaesthesiology. MethodsThis retrospective study included 192 patients who were intubated with a left-sided double-lumen endobronchial tube for one-lung ventilation in our centre and underwent thoracic surgery between 2015 and 2020. Generalised multiple linear regression models were constructed, and five indicators were used as factorial features: sex, height, weight, diameter of the left main bronchus, and age. ResultsA stepwise method with an entrance threshold of P<0.1 and removal threshold of P>0.2 was used to select factors significantly related to tube size. This method identified the following three factors: sex, height, and the diameter of the left main bronchus (DLMB). The size of the tube increased (p<0.001) by 0.121 per cm of patient height (p<0.001) and by 7.22 per cm of DLMB. In addition, the increase was greater in men than in women (by 1.27; p<0.001). When the size of the tube corresponded to that calculated by formula, pulmonary complications were observed in 10.0% of patients. In contrast, when the size did not match, complications were noted in 31.2% of patients. ConclusionsWe developed a standardised mathematical formula for determining the appropriate size of a left-sided double-lumen endobronchial tube. Further prospective studies are required to confirm the accuracy of the formula for use in thoracic anaesthesiology.

Efficacy and safety evaluation of a hypertonic seawater solution enriched with manganese and copper salts

Background: Nasal irrigation is commonly recommended as an adjuvant treatment for blocked nose. In the present study, the safety and efficacy profile of Stérimar Blocked Nose (SBN), a hypertonic seawater solution enriched with manganese and copper salts, has been evaluated on nasal epithelium, in vitro. Methodology: 3D reconstituted human nasal epithelium tissue model, MucilAir™, has been used to investigate the safety of SBN on nasal epithelium by measuring trans-epithelial electrical resistance (TEER), cytotoxicity (lactate dehydrogenase (LDH) release) and phlogosis-related effects (interleukin-8 secretion). Efficacy assessment was measured by ciliary beat frequency (CBF), mucociliary clearance (MCC) and antimicrobial activities (against Staphylococcus aureus and Pseudomonas aeruginosa). Results: Four-day SBN treatment did not compromise the nasal epithelium integrity as TEER values were over the tissue integrity limit. SBN treatment did not exert cytotoxic (LDH release) or pro-inflammatory effects (IL-8 secretion). SBN treatment significantly increased the CBF and MCC rates compared to untreated cells. SBN treatment exerted a bactericidal effect on S. aureus and P. aeruginosa cultures, whereas seawater not enriched in copper and manganese had only a bacteriostatic effect. Conclusions: The results demonstrate that SBN is a safe formula for use on human nasal epithelium. The results also suggest a better potential therapeutic role for SBN in comparison to not-enriched seawater when used to control nasal congestion and inhibit bacterial growth which may cause nasal congestion.

The effect of short-term phytase supplementation on the apparent total tract digestibility of calcium and phosphorus and the reproductive performance of late gestation and lactating sows fed diets without mineral phosphorus.

The objective of this study was to measure apparent total tract digestibility (ATTD) of Ca and P as well as reproductive performance in late gestation and lactating sows supplemented with a novel phytase and to compare the response to phytase supplementation between late gestation and lactating sows. A total of 45 late gestation sows and 45 lactating sows were used in experiments 1 and 2, respectively, in a completely randomized design. The sows were provided with a control diet or the control diet supplemented with 187.5 or 375 FYT phytase/kg feed for 10 days. The diets were prepared according to the formulas in use for production but without any inorganic P supplement. Titanium dioxide was included at 3 g/kg feed as an indigestible marker. Each dietary treatment was replicated with 15 sows individually housed in farrowing stalls. The sows were allowed to adapt to the experimental diets for 5 days before a 5-d fecal collection by grab sampling, and the performance of the sows and their litters were measured until weaning. The results showed that the ATTD of Ca increased linearly (P < 0.001), while the ATTD of P increased both linearly and quadratically (P < 0.01) with increasing supplementation of phytase in both late gestation and lactating sows. There was no significant effect of phytase on the ATTD of dry matter, crude protein, and gross energy, and the performance of the sows and their progenies. The phytase added at 187.5 and 375 FYT/kg feed released 0.07% and 0.10% digested P, respectively, in late gestation sows, which compared with 0.09% and 0.12% digested P in lactating sows. In conclusion, a novel phytase at 187.5-375 FYT/kg feed could release 0.07-0.12% digestible P for sows. It appeared that using the P digestibility values of feed ingredients listed by NRC to formulate a diet for sows might overestimate dietary P supply and a greater response to phytase supplementation could be expected in lactating sows than in late gestation sows.

Evaluation of lateral-distortional buckling strength of castellated steel beams using regression models

The effects of web distortion on the buckling behavior of castellated steel beams have rarely been studied; and so far, no exact formula has been proposed to predict the lateral-distortional buckling (LDB) capacity of such beams. Therefore, in the following paper, an attempt has been made to propose new formulas for predicting the LDB capacity of castellated beams using two regression models. To do this, at the first, an extensive parametric study including 480 finite element (FE) models was performed. Both material nonlinearities and initial geometric imperfections were carefully applied to the models and they were also well validated against experimental results. The next, based on the parametric study, nine non-dimensional parameters that affect the LDB behavior of castellated beams were considered, and using them as input parameters, two predictive models including stepwise regression (SR) and multiple regression (MR) were developed. The models were then used to provide new formulations for estimating the LDB strength of castellated steel beams. In the end, the proposed formulas were compared with the existing design guides available for estimating the buckling strength in AS4100, EC3, and AISC codes. The results showed that the proposed formulas for use by practical engineers are accurate enough.

A novel discriminant formula for the prompt diagnosis of strangulated bowel obstruction.

The diagnosis of strangulated bowel obstruction (SBO) is sometimes difficult. We attempted to create and verify a discriminant formula for use as a diagnostic aid for the early diagnosis of SBO. This retrospective study included 97 patients who underwent an operation for SBO from January 2007 to September 2018. First, a discriminant analysis was performed for 73 patients who underwent an operation from January 2007 to December 2015 in order to obtain a formula. Next, we analyzed 34 patients who underwent an operation from January 2016 to September 2018 to verify the formula. The risk factors for SBO included ascites, signs of preperitoneal irritation, and lactate > 1.16mmol/L. The discriminant formula is as follows: 1.954 × collection of ascites (1 or 0) + 1.239 × peritoneal irritation sign (1 or 0) + 0.378 × lactate - 2.331 (1: positive, 0: negative). The predictive value was as follows: sensitivity, 87.5%; specificity, 64.7%; and predictive accuracy, 73.5%. In patients who presented within 24h of the onset, the sensitivity was 92.3%, the specificity was 75.0%, and the predictive accuracy was 85.7%. Our discriminant formula seems useful for the rapid diagnosis of SBO.

Компактный транслятор алгоритмов в булевы формулы для применения в криптоанализе

Компактный транслятор алгоритмов в булевы формулы для применения в криптоанализе

Outpatient Prescriptions of Kampo Formulations in Japan.

Objective Kampo is a traditional Japanese medicine using formulae of natural agents. Although Kampo is widely practiced, information regarding the current prescriptions of Kampo formulations is lacking. The aim of the study was to describe the outpatient use of Kampo formulations in the current Japanese health insurance system. Methods From the JMDC Claims Database, we identified subscribers with outpatient prescriptions of Kampo extract formulations between April 2017 and March 2018. Prescription records were summarized at the individual level to describe the pattern of each formula's use, such as the frequency of prescription and the number of days within a year that were covered by the prescriptions. We also examined whether or not Kampo formulations were prescribed in combination with other drugs. Results Of the 4.5 million subscribers, 13.5% received prescriptions of Kampo extracts within 1 year, and 54% of Kampo users were women. The most commonly prescribed Kampo formulae included kakkonto, shoseiryuto, and maoto, which were used for the short term covering a median of 5 to 7 days. There were also several formulae that were prescribed for longer periods. The median numbers of days covered by kamishoyosan and keishibukuryogan were 60 and 56, respectively. Kampo formulations were used in combination with Western drugs in 85% of prescriptions. Conclusion Kampo formulations are commonly prescribed under the Japanese insurance system and are frequently used in combination with Western drugs. The pattern of prescriptions varied across different formulae.

Prognostic of different glomerular filtration rate formulas in patients receiving percutaneous coronary intervention: insights from a multicenter observational cohort

BackgroundThe relationships of renal dysfunction (RD) and chronic kidney disease (CKD) with prognosis have been well established among non-ST elevation acute coronary syndrome (NSTE-ACS) patients who receive percutaneous coronary intervention (PCI), but the efficacy of different estimated glomerular filtration rate (eGFR) formulas for predicting the prognosis is unknown.MethodsThe cohort originated from a retrospective data, which consecutively enrolled 8197 patients. The eGFR was calculated by the Cockcroft-Gault, Modification of Diet in Renal Disease (MDRD), CKD Epidemiology Collaboration-creatinine, CKD Epidemiology Collaboration-Cys-C, CKD Epidemiology Collaboration-Cys-C-creatinine and a modified abbreviated MDRD (c-aGFR) equations in Chinese CKD patients. Patients were excluded if the eGFR could not be obtained by one of the formulas. Patients were categorized as having normal renal function, mild RD, moderate RD, severe RD, or kidney failure to compare prognosis. The primary outcome was the in-hospital net adverse clinical events (NACE). The secondary outcomes were NACE and all-cause death during follow-up.ResultsIn total, 2159 NSTE-ACS patients (age: 64.23 ± 10.25 years; males: 73.7%) were enrolled. 39 (1.8%) patients with in-hospital NACE were observed. During the 3.23 ± 1.55-year follow-up, 1.7% death and 4.2% NACE were observed in 1 year. The percentage of severe RD patients ranged from 15.4 to 39.2% according to different calculation formulas. A high prevalence of in-hospital NACE was observed in the severe RD groups (ranging from 8 to 14.3% for different formulas). Multiple regression analysis showed that a high eGFR is a protect factor against NACE and all-cause death regardless of the formula use. Receiver operating characteristic curves showed similar predictive performance of the c-aGFR when compared to other formulas (in-hospital NACE: AUC = 0.612, follow-up NACE: AUC = 0.622, and follow-up death: AUC = 0.711).ConclusionsSevere RD results in a high prevalence of in-hospital NACE in NSTE-ACS patients after PCI regardless of the formulas use. Different formulas have a similar ability to predict in-hospital and long-term prognosis in NSTE-ACS patients. The c-aGFR formula is the simplest and a more convenient formula for use in practice.

Effect of pH and storage conditions on measured ionised calcium concentration in dogs and cats

BackgroundAerobic blood sample collection and processing results in increased serum pH and decreased ionised calcium (iCa) concentration. This prospective study aimed to determine the effect of pH and storage conditions...