Czasopisma Uniwersytetu Przyrodniczy w Lublinie
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The effect of teaching based on self regulation strategy supported with virtual manipulatives on the problem-solving performance and reasoning skills of 7th grade students on ratio-proportion
No full textBu çalışmanın amacı matematik dersinde sanal manipülatiflerle desteklenmiş öz düzenleme stratejisine dayalı öğretimin 7. sınıf öğrencilerinin oran-orantı konusunda problem çözme performanslarına ve akıl yürütme becerilerine etkisini incelemektir. Bu amaç doğrultusunda karma yöntem tercih edilmiştir. Karma yöntem araştırmalarından açıklayıcı sıralı desenden yararlanılmıştır. Araştırmanın nicel boyutunda deneysel araştırma desenlerinden biri olan ön test-son test yarı deneysel desen, nitel boyutunda durum çalışması deseni kullanılmıştır. Araştırmanın nicel boyutunda yer alan çalışma grubu, 2022-2023 öğretim yılı bahar döneminde Doğu Anadolu bölgesinde bulunan orta büyüklükteki bir ilde, iki farklı devlet okulunda öğrenim görmekte olan ortaokul 7. sınıf düzeyinde 62 öğrenciden oluşmaktadır. Çalışma gruplarının belirleneceği okulların seçiminde uygun örnekleme kullanılmıştır. Araştırmanın nitel boyutunda veriler deneysel işlemin gerçekleştirildiği deney grubu-1 ve deney grubu-2'de yer alan yedi öğrenciden alınmıştır. Araştırmanın nicel verileri orantısal akıl yürütme beceri testi, problem çözme performans testi, yarı yapılandırılmış görüşme formu ve kazanım yeterliliği izleme formu ile toplanmıştır. Araştırmada elde edilen nicel veriler t-testi, ANCOVA, Mann Whitney-U testi, Wilcoxon işaretli sıralar testi, korelasyon analizi, Cohen's d etki büyüklüğü değerleri ile istatistiksel olarak SPSS paket programı aracılığıyla analiz edilmiştir. Araştırmanın nitel verileri ise; içerik analizi yardımıyla çözümlenmiştir. Çalışmanın sonuçlarına göre öz düzenleme stratejileriyle desteklenen öğretim yönteminin öğrencilerin problem çözme ve orantısal akıl yürütme beceri düzeyleri üzerinde olumlu bir etkiye sahip olduğu söylenebilir. Ayrıca, orantısal akıl yürütme becerisi arttıkça problem çözme performansının da arttığı sonucuna ulaşılmıştır. Nitel veriler incelendiğinde sanal manipülatiflerle desteklenmiş öz düzenleme stratejisine dayalı öğretim etkinlikleri problem çözme performanslarına ve akıl yürütme becerilerine katkı açısından faydalı görülmüştür. Ulaşılan sonuçlar ile ilgili konu alanına yönelik araştırmacılara ve uygulayıcılara öneriler sunulmuştur.The purpose of this study is to examine the effect of teaching based on self regulation strategy supported by virtual manipulatives on 7th grade students' problem solving performances and reasoning skills in the subject of ratio-proportion. For this purpose, mixed method was preferred. Explanatory sequential design was utilized from mixed method research. In the quantitative dimension of the study, pretest-posttest quasi-experimental design, one of the experimental research designs, and in the qualitative dimension, case study design was used. The study group in the quantitative dimension of the study consisted of 62 7th grade middle school students studying in two different public schools in a medium-sized province in the Eastern Anatolia region in the spring semester of the 2022-2023 academic year. Convenient sampling was used in the selection of the schools where the study groups were to be determined. In the qualitative dimension of the study, data were collected from seven students in experimental group-1 and experimental group-2 where the experimental process was carried out. The quantitative data of the study were collected through a proportional reasoning skills test, a problem solving performance test, a semi-structured interview form, and a gain proficiency monitoring form. The quantitative data obtained in the study were statistically analyzed with t-test, ANCOVA, Mann Whitney-U test, Wilcoxon signed-rank test, correlation analysis, Cohen's d effect size values through SPSS package program. Qualitative data of the study were analyzed with the help of content analysis. According to the results of the study, it can be said that the teaching method supported by self regulation strategies has a positive effect on students' problem solving and proportional reasoning skill levels. In addition, it was concluded that as proportional reasoning skills increased, problem solving performance also increased. When qualitative data were analyzed, teaching activities based on self regulation strategy supported by virtual manipulatives were found to be beneficial in terms of contributing to problem solving performances and reasoning skills. With the results obtained, suggestions were presented to researchers and practitioners in the related subject area
Therapeutic drug monitoring of vancomycin in the case of augmented renal clearance: a case report of a paediatric patient
No full textAugmented renal clearance (ARC) is a condition in which renal circulation increases, causing drug levels in the blood to remain at subtherapeutic levels in severe trauma patients. Vancomycin, a hydrophilic anti-Gram-positive drug, has been shown in the literature to have its levels fall below the therapeutic range in the case of ARC. However, vancomycin dosing recommendations in the case of ARC are still lacking. Here, we identify an ARC case measured with urinary creatinine clearance in a severe trauma paediatric patient, causing vancomycin blood trough levels to drop. We could not be able to increase the vancomycin trough levels with intermittent dosing; hence, we administered vancomycin with continuous infusion, and this resulted in vancomycin blood trough levels remaining in the therapeutic range. No adverse effect was seen. Continuous infusion of vancomycin can be safely administered to paediatric patients in these cases
The effect on back pain, anxiety, and comfort levels of an elevated supine position and back support applied to patients undergoing coronary angiography A randomized controlled experimental study
No full textObjectives: To determine the effect of elevated supine position with back support on back pain, anxiety and comfort in patients undergoing coronary angiography. Methods: This randomized -controlled, experimental study was conducted in the Coronary Intensive Care Unit between September 2021 and January 2022, with an intervention group of 51 patients and a control group of 53 patients. Data were collected using a patient information form, a visual analog scale, the anxiety state inventory and the immobilization comfort questionnaire. Following angiography, the intervention group received pillow support to the back and the bedhead was elevated to 30 degrees. Routine nursing care was applied to the control group. In both groups, the severity of back pain was measured at 0, 2, and 4 hours, and anxiety and comfort at 0 and 4 hours. Results: The pain severity at 2 and 4 hours after the procedure was determined to be significantly lower in the intervention group than in the control group ( p <0.001, p <0.001). At 4 hours, the anxiety levels were similar in both groups ( p <0.05), and the comfort level was higher in the intervention group ( p <0.001). The mean pain value was 6.003 points lower and the comfort level was 20.499 points higher in the intervention group than in the control group. Conclusion: The elevated supine position with back support was seen to reduce back pain, increase comfort, and did not change anxiety levels.Acknowledgment. The authors gratefully acknowledge Carolinejwalker for the English language editing
Living donor liver transplantation for patients with portal vein thrombosis: high-volume single center experience
No full textOBJECTIVE: End-stage liver disease is commonly associated with portal vein thrombosis (PVT). Lastly, PVT is no longer an absolute contraindication for liver transplantation, and many centers adopt portal vein thrombectomy. PVT imposes special technical difficulties during living donor liver transplantation (LDLT). In this research, the experience with PVT cases during LDLT in a high-volume center is introduced. PATIENTS AND METHODS: Between January 2018 and July 2023, 312 patients underwent LDLT. After 88 cases were excluded, 224 cases were included, and their incidence of pre-transplant PVT was 16.5% (37/224). Demographic and clinical features, perioperative variables, and post-transplant outcomes of patients with PVT (PVT group, n=37) were compared to patients who had no PVT (non-PVT group, n=187). RESULTS: According to Yerdel classification, 16, 16, 2, and 3 patients had PVT grade I, II, III, and IV, respectively. Complete venous thrombectomy was accomplished in 34 patients, while for three patients, thrombectomy was not feasible, and graft inflow was established by interposition vascular graft. For portal flow modulation, splenectomy and splenic artery ligation were performed in 7 and 4 patients, respectively, while two patients underwent post-transplant splenic artery embolization. The PVT group had longer operation time (p<0.001), longer warm ischemia time (p=0.031), longer anhepatic phase (p<0.001), and intraoperatively required more than 3 packed RBCs units (p=0.029) and ?1 platelet unit transfusion (p=0.021) than the non- PVT group. No statistically significant difference was found between groups in terms of re-exploration (p=0.954), post-transplant PVT (p=0.375), biliary (p=0.253) and arterial complications (p=0.593), ICU stay (p=0.633), hospital stay (p=896), and 30-day mortality (p=1.000). Survival analysis showed no statistically significant difference regarding 1-year survival (p=0.176) between both groups. CONCLUSIONS: This study showed that patients with different stages of PVT can successfully undergo LDLT in experienced centers and that they do not differ from patients without PVT in terms of post-transplant complications. © 2024 Verduci Editore s.r.l. All rights reserved
Integrating proteomics and explainable artificial intelligence: a comprehensive analysis of protein biomarkers for endometrial cancer diagnosis and prognosis
No full textEndometrial cancer, which is the most common gynaecological cancer in women after breast, colorectal and lung cancer, can be diagnosed at an early stage. The first aim of this study is to classify age, tumor grade, myometrial invasion and tumor size, which play an important role in the diagnosis and prognosis of endometrial cancer, with machine learning methods combined with explainable artificial intelligence. 20 endometrial cancer patients proteomic data obtained from tumor biopsies taken from different regions of EC tissue were used. The data obtained were then classified according to age, tumor size, tumor grade and myometrial invasion. Then, by using three different machine learning methods, explainable artificial intelligence was applied to the model that best classifies these groups and possible protein biomarkers that can be used in endometrial prognosis were evaluated. The optimal model for age classification was XGBoost with AUC (98.8%), for tumor grade classification was XGBoost with AUC (98.6%), for myometrial invasion classification was LightGBM with AUC (95.1%), and finally for tumor size classification was XGBoost with AUC (94.8%). By combining the optimal models and the SHAP approach, possible protein biomarkers and their expressions were obtained for classification. Finally, EWRS1 protein was found to be common in three groups (age, myometrial invasion, tumor size). This article's findings indicate that models have been developed that can accurately classify factors including age, tumor grade, and myometrial invasion all of which are critical for determining the prognosis of endometrial cancer as well as potential protein biomarkers associated with these factors. Furthermore, we were able to provide an analysis of how the quantities of the proteins suggested as biomarkers varied throughout the classes by combining the SHAP values with these ideal models
Investigation of the effects of sulfur apricot diet on the gastrointestinal system in rats biochemically and histologically
No full textFen Bilimleri Enstitüsü, Kimya Ana Bilim DalıBu tez kapsamında Hacıhaliloglu kayısılarının toplanması, kükürtlenmesi ve kükürt düzeyinin belirlenmesi, kükürtlü kayısıların antimikrobiyal düzeylerinin belirlenmesi, bu ekstraktların in vitro özelliklerinin tespiti ve in vivo incelemeler kapsamında ise kükürtlü kayısı ile beslenmenin gastrointestinal sistem, (mide, bağırsak ve karaciğer) açısından biyokimyasal ve histolojik etkilerinin incelenmesi mevcuttur. Bunun için 42 adet Wistar albino cinsi sıçanlar randomize olarak 6 gruba ayrılmıştır. Kontrol, 1500 ppm , 2000 ppm, 2500 ppm, 3000 ppm ve 3500 ppm kükürtlü kuru kayısıyı %10 oranında içeren standart yemle 6 ay süresince beslenmiştir. Altı ayın sonunda sıçanların karaciğer harabiyet biyobelirteçleri olan serum enzimlerinden aspartate aminotransferaz (AST), alanin aminotransferaz (ALT) enzim seviyeleri tespit edilmiştir. Ayrıca sıçanların karaciğer, mide ve bağırsak dokularında oksidatif stres belirteçleri incelenmiştir. Bu amaçla malondialdehit(MDA), total glutatyon (tGSH), süperoksid dismutaz (SOD), katalaz (CAT), total antioksidan (TAS) ve total oksidan (TOS) düzeyleri ölçülmüştür. Aynı zamanda karaciğer, mide ve bağırsak dokularının histolojik hasar skorları tespit edilmiştir. Elde edilen sonuçlara göre; kükürt oranı farklı kayısıların tüketilmesi ratlarda 1500 ve 2500 ppm arasındaki kükürt miktarının karaciğer, mide ve bağırsak dokularında biyokimyasal ve histopatolojik değişiklikler oluşturmadığı ancak 3500 ppm kükürt düzeyinin yapısal ve biyokimyasal değişikliklere yol açtığı gösterilmiştir. Ayrıca farklı konsantrasyonlarda hazırlanan kükürtlü kayısı özütlerinin test edilen bir Gram pozitif (S. aureus ATCC 25923), bir Gram negatif (E. coli ATCC 25922) bakteri türü ve ayrıca bir de maya türü (Candida albicans ATCC 90028) üzerine belirgin antimikrobiyal etkilerinin olduğu saptanmıştır. Sonuç olarak 3500 ppm gibi yüksek konsantrasyonlarda kükürtlenen kayısıların karaciğer, mide ve bağırsaklarda yapısal ve biyokimyasal değişikliklere yol açabileceği görülmüştür. Ancak daha düşük konsantrasyonlarda (1500 ppm ila 2500 ppm) kükürtlenen kayısıların güvenli olduğu görülmektedir. Kükürtlenmiş kayısıların doza bağımlı olarak antimikrobiyal aktivitesi mevcut iken bu dozlarda L929 hücre hatlarında sitotoksisitenin bulunmaması, test edilen konsantrasyonlarda sülfürlenmiş kayısıların güvenliğini desteklemektedir.This thesis involves the collection, sulfurization, and sulfur level determination of Hacıhaliloğlu apricots; assessment of the antimicrobial levels of sulfurized apricots; evaluation of the in vitro properties of these extracts; and in vivo examination of the biochemical and histological effects of feeding with sulfurized apricots on the gastrointestinal system (stomach, intestine, and liver). Forty-two Wistar albino rats were randomly divided into six groups: control, 1500 ppm, 2000 ppm, 2500 ppm, 3000 ppm, and 3500 ppm sulfur content, and fed a standard diet containing 10% dried apricots for six months. At the end of six months, the levels of serum enzymes, aspartate aminotransferase (AST), and alanine aminotransferase (ALT), which are biomarkers of liver damage, were measured. Additionally, oxidative stress markers in the liver, stomach, and intestinal tissues of the rats were analyzed. For this purpose, levels of lipid peroxidation (Malondialdehyde=MDA), total glutathione (tGSH), superoxide dismutase (SOD), catalase (CAT), total antioxidant status (TAS), and total oxidant status (TOS) were measured. Histological damage scores of liver, stomach, and intestinal tissues were also determined. The results indicated that consumption of apricots with sulfur levels between 1500 ppm and 2500 ppm did not cause significant biochemical and histopathological changes in the liver, stomach, and intestinal tissues of the rats. However, a sulfur level of 3500 ppm led to structural and biochemical alterations. In addition, sulfured apricot extracts prepared at different concentrations had significant antimicrobial effects on a tested Gram-positive (S. aureus ATCC 25923), a Gram-negative (E. coli ATCC 25922) bacterial species and also a yeast species (C. albicans ATCC 90028) have been detected. Cytotoxicity assays on healthy rat fibroblast (L929) cell lines showed no toxic effect as the sulfur content increased, with cell viability remaining unaffected. In conclusion, apricots sulfurized at high concentrations such as 3500 ppm may lead to structural and biochemical changes in the liver, stomach, and intestines. However, apricots sulfurized at lower concentrations (1500 ppm to 2500 ppm) appear to be safe. The significant antimicrobial activity of sulfurized apricots suggests their potential as a natural preservative. The lack of cytotoxicity on L929 cell lines further supports the safety of sulfurized apricots within the tested concentrations
Effect of growing pink tomato plants with LED supplementary lighting in a greenhouse covered with diffusion glass on post-harvest fruit quality
Get PDFIt was found that the taste and quality of tomato fruit can significantly depend on the cultivar, growing conditions, fruit maturity stage, and post-harvest treatments. This study aimed to compare the effects of growing conditions, such as the use of diffusion glass and LED supplementary light (LED+D), with diffusion and standard glass and HPS lamps (HPS+D; HPS) on the quality and post-harvest shelf life of pink tomato fruit cv. ‘Tomimaru Muchoo F1’ in relation to fruit maturity stage and storage temperature. Fruits were harvested at three ripening stages – mature green (MG), breaker (B) and fully ripe (FR). Fruits of each maturity stage were stored under controlled conditions in a cold store at 12 °C for MG and B fruits and at 6 °C for FR fruits (at 85% relative humidity), and 20 °C for all ripening stages (at about 50% relative humidity). Physiological weight loss, dry weight, hardness of fruit, fruit color ( L*, a*, b*, a*/b*), total soluble solids, total sugars, ascorbic acid, titratable acidity, pH, lutein, lycopene, a-carotene, b-carotene were determined. Pink tomato fruits harvested from LED-lighted plants in combination with diffusion glass showed the highest shelf life and post-harvest quality compared to fruits from HPS-lighted plants and HPS-lighted crops in combination with diffusion glass. Stored pink tomato fruits from the LED+D combination were characterized by significantly higher total sugars, vitamin C and β-carotene content than fruits from the combination HPS and HPS+D. Tomato fruits, regardless of the maturity stage, at 20 °C had higher fresh weight loss and lower fruit firmness during storage compared to those stored at lower temperatures. Pink tomato fruits stored in higher temperature colored faster and contained a higher concentration of components such as total soluble solids or ascorbic acid and carotenoids.It was found that the taste and quality of tomato fruit can significantly depend on the cultivar, growing conditions, fruit maturity stage, and post-harvest treatments. This study aimed to compare the effects of growing conditions, such as the use of diffusion glass and LED supplementary light (LED+D), with diffusion and standard glass and HPS lamps (HPS+D; HPS) on the quality and post-harvest shelf life of pink tomato fruit cv. ‘Tomimaru Muchoo F1’ in relation to fruit maturity stage and storage temperature. Fruits were harvested at three ripening stages – mature green (MG), breaker (B) and fully ripe (FR). Fruits of each maturity stage were stored under controlled conditions in a cold store at 12 °C for MG and B fruits and at 6 °C for FR fruits (at 85% relative humidity), and 20 °C for all ripening stages (at about 50% relative humidity). Physiological weight loss, dry weight, hardness of fruit, fruit color ( L*, a*, b*, a*/b*), total soluble solids, total sugars, ascorbic acid, titratable acidity, pH, lutein, lycopene, a-carotene, b-carotene were determined. Pink tomato fruits harvested from LED-lighted plants in combination with diffusion glass showed the highest shelf life and post-harvest quality compared to fruits from HPS-lighted plants and HPS-lighted crops in combination with diffusion glass. Stored pink tomato fruits from the LED+D combination were characterized by significantly higher total sugars, vitamin C and β-carotene content than fruits from the combination HPS and HPS+D. Tomato fruits, regardless of the maturity stage, at 20 °C had higher fresh weight loss and lower fruit firmness during storage compared to those stored at lower temperatures. Pink tomato fruits stored in higher temperature colored faster and contained a higher concentration of components such as total soluble solids or ascorbic acid and carotenoids
In vitro studies of the antagonistic effect of selected fungi on Bipolaris sorokiniana (Sacc.) Shoem.
Get PDFNatural protection of plants against diseases, pests and environmental stresses is the only acceptable alternative to the progressive application of chemicals in plant production. Amidst evolving climatic patterns, various diseases pose significant threats to crop plant production. Among these concerns, a prominent menace across multiple regions of the world is seedling blight, incited by the pathogenic agent Bipolaris sorokiniana Sacc. The antagonistic effect may occur in/on the host itself or in its vicinity in the case of saprotrophic organisms. B. sorokiniana attacks many species of crop plants, especially in warmer growing areas and causes significant losses of field emergence and yield. This study aimed to assess the inhibitory impact of selected microscopic fungi on the growth and development of B. sorokiniana through dual-culture experiments. The study also aimed to identify potential fungal candidates for the biocontrol of seedling blight caused by this pathogen. The outcomes demonstrated that only several of the fungi subjected to testing had a noteworthy influence on the growth of B. sorokiniana. The presence of a few fungi species, such as Trichoderma viride, Fusarium graminearum, and Botrytis cinerea led to a decrease in B. sorokiniana growth by a minimum of 50%. In the instance of other fungi such as Sordaria fimicola, Epicoccum nigrum, Fusarium sporotrichioides, F. culmorum, and Nigrospora oryzae, the reduction amounted to at least 40%. The vast majority (75%) of the fungal species used in the test limited the growth of Bipolaris colonies by up to 39%.Natural protection of plants against diseases, pests and environmental stresses is the only acceptable alternative to the progressive application of chemicals in plant production. Amidst evolving climatic patterns, various diseases pose significant threats to crop plant production. Among these concerns, a prominent menace across multiple regions of the world is seedling blight, incited by the pathogenic agent Bipolaris sorokiniana Sacc. The antagonistic effect may occur in/on the host itself or in its vicinity in the case of saprotrophic organisms. B. sorokiniana attacks many species of crop plants, especially in warmer growing areas and causes significant losses of field emergence and yield. This study aimed to assess the inhibitory impact of selected microscopic fungi on the growth and development of B. sorokiniana through dual-culture experiments. The study also aimed to identify potential fungal candidates for the biocontrol of seedling blight caused by this pathogen. The outcomes demonstrated that only several of the fungi subjected to testing had a noteworthy influence on the growth of B. sorokiniana. The presence of a few fungi species, such as Trichoderma viride, Fusarium graminearum, and Botrytis cinerea led to a decrease in B. sorokiniana growth by a minimum of 50%. In the instance of other fungi such as Sordaria fimicola, Epicoccum nigrum, Fusarium sporotrichioides, F. culmorum, and Nigrospora oryzae, the reduction amounted to at least 40%. The vast majority (75%) of the fungal species used in the test limited the growth of Bipolaris colonies by up to 39%
Bioactive compounds in different melon (Cucumis melo L.) genotypes and one cultivar grown under deficit irrigation and salt stress
Get PDFDrought and salinity are the most important abiotic factors limiting agricultural production. One of the effective ways to avoid their negative effects on plants is to determine the genotypes that will show resistance to these stress conditions. In addition, the gradual decrease in water resources in the world makes minimum water consumption important in agriculture. For this purpose, three different irrigation levels (I100: control – 100% full irrigation, i.e. 0% deficit irrigation, I50: 50% deficit irrigation, I25: 25% deficit irrigation) were applied within the framework of water constraint, and NaCl was applied at the doses of S0: 0 mM (control), S50: 50 mM and S75: 75 mM to create salt stress, and the experimental plots were designed according to the random plot experimental design with three replications and four plants in each replication. In the genotype × salinity interaction, compounds other than fumaric acid from organic acids formed significant interactions with genotypes YYU-4 and YYU-10. Among phenolic compounds, parameters other than total phenolic and antioxidant content formed significant interactions mainly with cv. Ananas. In the genotype × irrigation interaction, among organic acids, oxalic, succinic and fumaric acids and among phenolic compounds, only vanillic acid showed significant interactions particularly with genotypes YYU-1, YYU-10 and YYU-13. As a result of the study, it was concluded that the determined genotypes are prominent in terms of quality fruit production in saline and arid areas, and it is necessary to examine these genotypes using different parameters in different breeding studies.Drought and salinity are the most important abiotic factors limiting agricultural production. One of the effective ways to avoid their negative effects on plants is to determine the genotypes that will show resistance to these stress conditions. In addition, the gradual decrease in water resources in the world makes minimum water consumption important in agriculture. For this purpose, three different irrigation levels (I100: control – 100% full irrigation, i.e. 0% deficit irrigation, I50: 50% deficit irrigation, I25: 25% deficit irrigation) were applied within the framework of water constraint, and NaCl was applied at the doses of S0: 0 mM (control), S50: 50 mM and S75: 75 mM to create salt stress, and the experimental plots were designed according to the random plot experimental design with three replications and four plants in each replication. In the genotype × salinity interaction, compounds other than fumaric acid from organic acids formed significant interactions with genotypes YYU-4 and YYU-10. Among phenolic compounds, parameters other than total phenolic and antioxidant content formed significant interactions mainly with cv. Ananas. In the genotype × irrigation interaction, among organic acids, oxalic, succinic and fumaric acids and among phenolic compounds, only vanillic acid showed significant interactions particularly with genotypes YYU-1, YYU-10 and YYU-13. As a result of the study, it was concluded that the determined genotypes are prominent in terms of quality fruit production in saline and arid areas, and it is necessary to examine these genotypes using different parameters in different breeding studies
Wpływ zadrzewień śródpolnych na mikroklimat i bioróżnorodność agrocenoz
Get PDFThe study evaluated features of agrocenosis, depending on the distance from the in-field trees. Ten test sites were designated, and at each site liter containers (jars) were dug into the ground at distances of 10 m from each other, starting from the tree line. Weekly observations were made during the study, in which selected meteorological parameters were recorded: air temperature, soil temperature, wind speed, air humidity. Selected ecological indicators were also determined: the number of collected individuals, species and the weight of invertebrates (mg). The premise of the experiment was to demonstrate microclimatic and biological variation depending on the distance from the tree canopy. On this basis, changes in the average values of selected meteorological parameters and ecological indicators at successive study sites were presented. In the study, no increase in biodiversity was confirmed with decreasing distance from the tree canopy. The highest number of species was found in the middle section, this may be due to the additional influence of the meadow, which is adjacent to the section, and higher average soil temperatures in this area. Wind speed was found to increase with distance from the tree canopy, this confirms the fact that tree canopies have an inhibitory effect on wind speed. The humidity of the air within the study area was at a similar level, so it can be assumed that the tree canopies have a stabilizing effect on the humidity of the adjacent areas.W pracy oceniono wybrane cechy agrocenozy w zależności od odległości od zadrzewienia śródpolnego. Wyznaczono 10 stanowisk badawczych, na każdym z nich, począwszy od linii zadrzewienia, wkopano w ziemię pojemniki litrowe (słoiki) w odległościach 10 m od siebie. W trakcie badań prowadzono cotygodniowe obserwacje, w których odnotowywano wybrane parametry meteorologiczne: temperaturę powietrza, temperaturę gleby, prędkość wiatru, wilgotność powietrza. Określono także wybrane wskaźniki ekologiczne: liczbę zebranych osobników, gatunków oraz średnią masę bezkręgowców (mg). Założeniem doświadczenia było wykazanie zróżnicowania mikroklimatycznego i biologicznego w zależności od odległości od zadrzewienia. Na tej podstawie przedstawiono zmiany średnich wartości wybranych parametrów meteorologicznych i wskaźników ekologicznych w obrębie kolejnych stanowiskach badawczych. W pracy nie potwierdzono wzrostu bioróżnorodności wraz ze zmniejszeniem się odległości od zadrzewienia. Najwięcej gatunków stwierdzono w środkowej części transektu (stanowiska badawcze 5, 6 i 7), co może być wynikiem dodatkowego wpływu łąki sąsiadującej z danym odcinkiem oraz wyższych średnich temperatur gleby w tym obszarze. Stwierdzono wzrost prędkości wiatru w miarę odległości od zadrzewienia. Potwierdza to fakt, że zadrzewienia hamują prędkość wiatru. Wilgotność powietrza w obrębie badanego obszaru była na podobnym poziomie, można zatem przypuszczać, że zadrzewienia oddziałują stabilizująco na wilgotność powietrza przyległych do nich obszarów