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Drilled Displacement System (DDS) and Continuous Flight Auger (CFA) piles are two popular techniques used for building pile foundations that offer advantages over traditional pile systems, including improved load-carrying capacity, reduced installation time, and less spoil generation. This article presents laboratory-scaled model tests conducted on model piles installed using the Drilled Displacement System (DDS) and Continuous Flight Auger (CFA) technologies on a test tank setup filled with soil. Model piles considering a scaling factor of 1/20 with a diameter of 20 mm and a length of 300 mm were adopted for the study. Static loading is applied to the model piles and the corresponding displacements are measured during each loading phase. The results of the analysis were compared for load-settlement curves and ultimate bearing capacity estimates for both DDS and CFA piles. Based on the study, the DDS piles were observed to perform well in terms of load-carrying capacity compared to the CFA piles. Further, full-scale field tests under static load conditions were carried out on DDS-drilled piles of diameter 400 mm and length 6 m. The load-settlement response from the field test shows good agreement with the model tests. Overall, the results of the study provide valuable insights into the behavior and performance of DDS piles that can be used to optimize their design and installation in different soil types.

Kazakh grain is one of the competitive on world commodity markets; therefore the state regulation of production and turnover of Kazakh grain is directly correlated with the overall competitiveness of country. The aim of this research is to identify the main vectors, as well as state control forms of the regulatory impact on the grain market. In addition, on the basis of the research, recommendations for improving the grain market in Kazakhstan will be provided.

Renal angiomyolipoma (rAML) is a rare benign tumour primarily affecting women due to hormonal influences, with accelerated growth observed during pregnancy. This case report presents a multigravida woman in her mid-20s at 37 weeks of gestation with stable vital signs and normal physical examination findings, except for swelling in the lower extremities. Following caesarean section delivery, she developed flank pain and haematuria in the immediate postoperative period. Emergency surgery revealed a ruptured rAML, resulting in unstable haemodynamics and significant blood loss. A multidisciplinary team performed a left radical nephrectomy to control bleeding. The patient required transfusions, ventilation and postoperative antibiotic therapy. This case underscores the importance of considering rAML rupture in the immediate postoperative period following caesarean section, highlighting the need for prompt evaluation in pregnant women with a history of urologic disorders., Competing Interests: Competing interests: None declared., (© BMJ Publishing Group Limited 2024. No commercial re-use. See rights and permissions. Published by BMJ.)

Correlated electron systems may give rise to multiple effective interactions whose combined impact on quasiparticle properties can be difficult to disentangle. We introduce an unambiguous decomposition of the electronic self-energy which allows us to quantify the contributions of various effective interactions simultaneously. We use this tool to revisit the hole-doped Hubbard model within the dynamical cluster approximation, where commonly spin fluctuations are considered to be the origin of the pseudogap. While our fluctuation decomposition confirms that spin fluctuations indeed suppress antinodal electronic spectral weight, we show that they alone cannot capture the pseudogap self-energy quantitatively. Nonlocal multiboson Feynman diagrams yield substantial contributions and are needed for a quantitative description of the pseudogap.

Objectives: The purpose of this study was to compare the use of unilateral apical sling versus laparoscopic sacrocolpopexy in the treatment of the apical form of pelvic organ prolapse in women. M: aterial and methods:A prospective, single-center randomized trial included 100 patients who were alternately assigned to treatment. Each patient had a ≥ III stage of apical or anterior-apical prolapse determined by the POP-Q system. 45 accepted for unilateral apical sling (UAS)and 55 accepted for laparoscopic sacrocolpopexy (LS). Data were compared by the One-way ANOVA test using IBM SPSS stats 19., Results: Mean operating time was significantly greater in the LS group versus UAS group, 194.6 vs 42.4 minutes, respectively (p < 0.05). The amount of intraoperative bleeding was significantly higher in the UAS group, compared to the LS group (p = 0.01). Within the follow-up period, 2 patients in UAS group and 3 patients in LS group (4.4% vs 5.4%, respectively; p = 0.9) had recurrent cystocoele. HRQoL and sexual outcomes did not differ significantly between the two treatment groups., Conclusion: s:Our data demonstrate the non-superiority one on each other of the two different approaches, except in terms of shorter operating time and higher intraoperative bleeding when UAS used. These findings raise questions about the need for long-term results of quality of life outcomes for women with genital prolapse, especially in resource-limited settings similar to Kazakhstan.

One-particle Green's function methods can model molecular and solid spectra at zero or non-zero temperatures. One-particle Green's functions directly provide electronic energies and one-particle properties, such as dipole moment. However, the evaluation of two-particle properties, such as ⟨S 2 ⟩ and ⟨N 2 ⟩, can be challenging because they require a solution of the computationally expensive Bethe-Salpeter equation to find two-particle Green's functions. We demonstrate that the solution of the Bethe-Salpeter equation can be completely avoided. Applying the thermodynamic Hellmann-Feynman theorem to self-consistent one-particle Green's function methods, we derive expressions for two-particle density matrices in a general case and provide explicit expressions for GF2 and GW methods. Such density matrices can be decomposed into an antisymmetrized product of correlated one-electron density matrices and the two-particle electronic cumulant of the density matrix. Cumulant expressions reveal a deviation from ensemble representability for GW, explaining its known deficiencies. We analyze the temperature dependence of ⟨S 2 ⟩ and ⟨N 2 ⟩ for a set of small closed-shell systems. Interestingly, both GF2 and GW show a non-zero spin contamination and a non-zero fluctuation of the number of particles for closed-shell systems at the zero-temperature limit.

We present an implementation of the self-energy embedding theory (SEET) for periodic systems and provide a fully self-consistent embedding solution for a simple realistic periodic problem-one-dimensional (1D) crystalline hydrogen-that displays many of the features present in complex real materials. For this system, we observe a remarkable agreement between our finite-temperature periodic implementation results and well-established and accurate zero-temperature auxiliary quantum Monte Carlo data extrapolated to thermodynamic limit. We discuss differences and similarities with other Green's function embedding methods and provide the detailed algorithmic steps crucial for highly accurate and reproducible results.

We present a new theoretical approach, unrestricted self-energy embedding theory (USEET), that is a Green's function embedding theory used to study problems in which an open, embedded system exchanges electrons with the environment. USEET has a high potential to be used in studies of strongly correlated systems with an odd number of electrons and open shell systems such as transition metal complexes important in inorganic chemistry. In this paper, we show that USEET results agree very well with common quantum chemistry methods while avoiding typical bottlenecks present in these methods.