Evaluation of tea tree oil formulations contact and stomach toxicity against the Egyptian cotton leafworm, Spodoptera littoralis (Boisduval, 1883) (Lepidoptera: Noctuidae)

The insecticidal potential of tea tree oil formulations was tested for contact and stomach poison toxicities against various stages of the Spodoptera littoralis ((Boisduval, 1883) (Lepidoptera: Noctuidae) larvae under laboratory conditions. The study was carried out at Yozgat Bozok University Faculty of Agriculture between 2020 and 2021. In the contact toxicity test, the formulations were tested at different stages of larvae by topical application. Among the tested formulations, TTO (100%), F14 (91.72%), and F15 (89.20%) formulations caused the highest mortality in the S. littoralis 3rd stage larvae after 72 h. Dose-response bioassay with the most promising formulations (TTO, F14 and F15) revealed that LD50 values were 0.016, 0.046, and 0.076 mu g/larvae for TTO, F14, and F15, respectively. The stomach poison effects of the formulations were tested by applying a 0.16 mu g/cm2 dose to lettuce leaf discs. The F17 and F18 formulations produced the highest mortality with mortality rates of 75% and 65% after 10 days of incubation, respectively. The calculated LC50 values for these formulations were 0.027 and 0.042 mu g/cm2 for F17 and F18 formulations after 10 days of incubation, respectively. These results revealed that tea tree oil and its main components containing formulations have the potential in controlling this destructive lepidopteran pest species.Scientific and Technological Research Council of Turkey (TUBITAK) [120O176]This work was supported by The Scientific and Technological Research Council of Turkey (TUBITAK) (Project number: 120O176)

Shrinkage compensation approach proposed for ABS material in FDM process

Dimensional accuracy of parts manufactured by Fused Deposition Modelling (FDM) greatly suffers from the shrinkage problems of the available polymer materials. This paper proposes a constructive idea for resolving the shrinkage issues and explains how shrinkage could be managed by interior geometry of the artifacts fabricated on desktop 3D printers. The main principle for preventing the deterioration on dimensional accuracy of the holes/slots is to utilize the auxiliary lines located from the hole's perimeter to the outer boundaries of the artifact. Thus, the shrinkage of these auxiliary line segments simply helps to pull the original hole backward, acting against the predicted contraction. In this paper, the proposed approach will be examined using a finite element analysis tool to predict the shrinkage behavior of the fabricated samples along with necessary measurements taken on the Coordinate Measuring Machine. Additionally, an analytical framework for modeling the shrinkage behavior of ABS is to be elaborated. The coherence of the simulations and the measurements are to be analyzed regarding the effect of the geometry and material color on the shrinkage behavior. The discussion involves the improvement on the dimensional accuracy of 3D printed features

Chemical Composition and Insecticidal Activity of Origanum syriacum L. Essential Oil Against Sitophilus oryzae and Rhyzopertha dominica

Origanum genus belonging to the Lamiaceae family is aromatic and medicinal plant. It has been used in many countries for medicinal and pharmaceutical purpose. Aerial part of the Origanum syriacum L. was dried at shade. The essential oil was generated by steam distillation and compounds were identified by GC-MS analysis. γ-terpinene (26.7%), thymol (26.6%) and carvacrol (22.9%) was detected as the mail constituents. The essential oil was tested for insecticidal activity against adult of Sitophilus oryzae (L.) (Coleoptera: Curculionidae) and Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae) using fumigation method. Essential oil revealed the excellent fumigant effect on R. dominica adults with a median lethal concentration (LC50) value of 0.124 µl/insect and 0.107 µl/insect for 48 h and 72 h respectively. LC50 values of S. oryzae were found as 0.173 µl/insect and 0.135 µl/insect for 48 h and 72 h respectively. As a result, essential oil of O. syriacum has a potency to be a natural insecticide

The clinical impact of serous tubal intraepithelial carcinoma on outcomes of patients with high-grade serous carcinoma of the ovary, fallopian tube, and peritoneum

Aims: To investigate whether the presence of serous tubal intraepithelial carcinoma (STIC) is associated with clinical outcomes in a nonselected (unknown BRCA status) cohort of patients with a high-grade serous carcinoma (HGSC) of the ovary, fallopian tube, and peritoneum. Settings and Design: A prospective case-series with planned data collection. Subjects and Methods: The study was conducted in a total of 131 patients, who underwent primary cytoreductive surgery between 2007 and 2012. Histological examination of the fallopian tubes included the “sectioning and extensively examining the fimbriated end” protocol. The diagnosis of STIC was based on the combination of morphology and immunohistochemistry. The patients were divided into two groups according to the absence or presence of STIC and compared clinicopathologically. Statistical Analysis Used: Analyses were performed using PASW 18 (SPSS/IBM, Chicago, IL, USA) software. The primary outcome was progression-free survival (PFS), and the secondary outcome was overall survival (OS). Results: STIC was identified in 20.6% of patients. Median follow-up time was 49.5 months for the STIC-positive group and 38.0 months for the STIC-negative group. Study groups were comparable in terms of clinicopathological characteristics with the exception that patients with STIC had less lymph node involvement (55.0% vs. 65.4%, P = 0.001), and more diagnosis of primary tubal carcinoma (29.6% vs. 3.8%, P = 0.001) compared to those without STIC. No statistically significant differences in terms of PFS (P = 0.462) and OS (P = 0.501) were observed between the groups. Conclusions: The absolute identification of the origin of tumor cell does not seem to significantly affect the clinical course of the patients with HGSC

CALPAGAN: Calorimetry for Particles Using Generative Adversarial Networks

In this study, a novel approach is demonstrated for converting calorimeterimages from fast simulations to those akin to comprehensive full simulations,utilizing conditional Generative Adversarial Networks (GANs). The concept ofpix2pix is tailored for CALPAGAN, where images from fast simulations serve asthe basis(condition) for generating outputs that closely resemble those fromdetailed simulations. The findings indicate a strong correlation between thegenerated images and those from full simulations, especially in terms of keyobservables like jet transverse momentum distribution, jet mass, jetsubjettiness, and jet girth. Additionally, the paper explores the efficacy ofthis method and its intrinsic limitations. This research marks a significantstep towards exploring more efficient simulation methodologies in High EnergyParticle Physics

Effects of mycophenolate mofetil and rapamycine on peritoneal fibrosis of experimental peritoneal dialysis model

43rd ERA-EDTA Congress -- JUL 15-18, 2006 -- Glasgow, SCOTLANDWOS: 000239919003218…ERA, EDT