bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of Bone Marrow Mesenchymal Stem Cells on Neuronal Activity and Glial Cell-Derived Neurotrophic Factor Expression in Rats with Spinal Cord Injury
Authors: Di Tianning , Chen Xingchao , Ma Yanchao , Xu Weiyuan , Song Pengjie , Ma Bing , Chen Xingchao
Published: August 2021

Our study intends to explore the effect of bone marrow mesenchymal stem cells (BMSCs) on neuronal activity and GDNF expression in rats with SCI. Rats were assigned into spinal cord injury group (group S); routinely control group (group R) without spinal incision; and BMSCs group (group
B) which received BMSCs treatment with n = 4 rats in each group. The neuronal cell proliferation was detected by cck-8 method, BBB score was used to detect lower limb motor function, GDNF mRNA expression was detected by qRT-PCR, GDNF protein positive expression was measured by immunohistochemistry
and cell invasion was assessed by Transwell. Group B rats showed significantly higher BBB score higher than group S (P <0.05) and group R rats had higher score than group B (P <0.05). The OD value of cell proliferation in group R was significantly higher than group S and
group B (P <0.05). Group R had the largest number of neuronal cell proliferation followed by group B and group S (P <0.05); the neuronal cell invasion ability of group S and group B was decreased significantly compared with Group R (all P <0.05); group B rat showed
higher neuronal cell invasion ability than group S (P <0.05). The GDNF mRNA expression in group B was higher than group S (P <0.05) and lower than group R (P <0.05). The positive number of GDNF protein in group B was higher than group S (P <0.05) and
lower than group R (P <0.05). In conclusion, BMSCs can significantly improve the decline of cell activity and motor capacity caused by acute SCI in rats, and can enhance the neuronal cells activity possibly by increasing GDNF expression in neuronal cells and improving their lower
limbs motor function.
In Vitro Follicle Growth, Maturation, and Gene Expression: Three-Dimensional (3D) Matrigel Culture versus Two-Dimensional Culture (2D)
Authors: Moon Byoung-San , Lee Seungki , Choi Jung Kyu
Published: August 2021

This research aimed to compare the In Vitro growth, maturation, and gene expression in ovarian follicles collected from adult mice (6–8-week-old) between two-dimensional and three-dimensional cultures. First, we confirmed In Vitro follicle growth and maturation using
adult mice with outbred characteristics and analyzed the expression of genes related to follicular development. We found that the three-dimensional culture system utilizing a Matrigel drop to create an in vivo-like ovarian microenvironment was more efficient in terms of In Vitro
follicle growth, maturation, and gene expression than the two-dimensional system (non-physical environment). The in vivo-like three-dimensional culture of ovarian follicles provides new insights into the physiology and development of ovarian follicle in vivo, thereby contributing
to new strategies to improve female fertility.
Effects and Mechanism of Mouse Nerve Growth Factor on Diffuse Brain Injury in Rats with Traumatic Brain Injury Combined with Seawater Drowning
Authors: Zeng Zihuan , Zhang Hao , Wu Jianwu , Wei Liangfeng , Chen Weiqiang , Wang Shousen
Published: August 2021

To investigate the effect of mouse nerve growth factor (mNGF) on axonal injury after traumatic brain injury (TBI) combined with seawater drowning (SWD) in rats and the possible mechanism, we assigned 78 SD rats by random into sham group (Group A, n = 14), TBI+SWD group (Group
B, n = 32), and mNGF group (Group C, n = 32). The compound injury model of rats was established by Marmarou method (450 g×1.5 m) and intratracheal pumping seawater (3 ml/kg). Rats in Group C were subject to intraperitoneal injection of mNGF (3 ug/kg) immediately after injury,
and Group A as well as Group B were intraperitoneally injected the same amount of normal saline. Modified neurological severity scores(mNSS) was performed on rats at 12 h, 24 h, 72 h as well as 168 h, respectively after injury. HE staining showed that 24 h after injury, the swelling of nerve
cells in Group C was relatively milder and the tissue edema was similar to that in Group B. At 72 h and 168 h after injury, the matrix looseness, cell swelling, and nuclear condensation in Group C were improved in comparison with Group B. (2) Compared with group B, mNSS of group C decreased
signally at 72 h and 68 h after injury (P <0.05). (3) IHC staining showed that the protein expressions of β-APP, NF-L, and AQP4 were decreased in Group C in comparison with Group B at 12 h, 24 h, 72 h and 168 h after injury. (4) Brain water content in Group C was similar
to that in Group B (P >0.05). (5) At 12 h after injury, the expression of TNF-α in Group C was signally lower than that in Group B (P < 0.05). Our reseache showed that mNGF might play a neuroprotective role by reducing cerebral edema and inflammatory response
after TBI+SWD injury in rats, thereby restoring part of the injured axons in TBI+SWD rats.
Transplantation of Bone Marrow Mesenchymal Stem Cells (BMSCs) Overexpressing Circular Zinc Finger Protein 609 Alleviates Diabetic Retinopathy
Authors: Chen Sheng , Tian Meiwen , Liu Shenwen
Published: August 2021

Diabetic retinopathy (DR) is a chronic complications and its pathogenesis remains unclear. This study aims to elucidate the underlying mechanism by how bone marrow mesenchymal stem cells (BMSCs) affects DR development in a rat model. A rat model of DR was established and injected with
BMSCs overexpressing Cir-ZNF609 and shRNA Cir-ZNF609 to vitreous body followed by analysis of the retinal vascular permeability and macular retinal layers thickness, and the levels of HIF-1α, ICAM-1 and VEGF in rat retina by ELISA and immunohistochemistry. Injection of BMSCs overexpressing
Cir-ZNF609 resulted in decreased HIF-1α ICAM-1 and VEGF expression, amelioration of retinal ganglion choriocapillaris injury and reducing ganglion cells. Twelve weeks after treatment, neovascularization took place and fibroblasts appeared with some nucleus disappearing and pigment
taking off. Besides, permeability also elevated in the presence of overexpressing Cir-ZNF609 and penetration rate for Evans blue (16.36+3.25, 15.45±3.46 μg/g) was lower than healthy rats (28.66±2.08, 32.24±4.36 μg/g) and controls (26.93±3.03,
33.49±5.02 μg/g) (p < 0.01). Moreover, upregulation of Cir-ZNF609 decreased retinal thickness and macular volume in DR rats (p < 0.05). In conclusion, intravitreal injection of mouse BMSCs overexpressing Cir-ZNF609 alleviates retinal injury and decreases
retinal thickness and macular volume, and enhances neovascularization. These evidence provides a novel insight into gene therapy for DR.
Estimation of water origins within an explosive cyclone over the Sea of Japan using an isotopic regional spectral model
Authors: Li Xiaoyang , Kawamura Ryuichi , Sugimoto Atsuko , Yoshimura Kei
Published: August 2021

Moisture sources and their corresponding temperature and humidity are important for explosive extratropical cyclones’ development regarding latent heating. To clarify the water origins and moisture-transport processes within an explosive cyclone, we simulated an explosive cyclone migrating poleward across the Sea of Japan on November 30, 2014, by using an isotopic regional spectral model. In the cyclone’s center area, a replacement of water origins occurred during the cyclone’s development. During the early stage, the warm conveyor belt (WCB) transported large amounts of moisture from the East China Sea and Kuroshio into the cyclone’s inner region. While in the deepening stage, the cold conveyor belt (CCB) and dry intrusion (DI) conveyed more moisture from the Northwest Pacific Ocean and the Sea of Japan, respectively. Compared with the contribution of local moisture, that of remote moisture was dominant in the cyclone’s center area. Regarding the water origins of condensation within the frontal system in the deepening stage, the Northwest Pacific Ocean vapors, principally transported by the CCB, contributed 35.5% of the condensation in the western warm front. The East China Sea and Kuroshio moisture, conveyed by the WCB, accounted for 32.4% of the condensation in the cold and eastern warm fronts. In addition, condensation from the Sea of Japan, which was mainly triggered by the DI and induced by the topography, occurred on the west coast of the mainland of Japan and near the cyclone center. The spatial distribution of the isotopic composition in condensation and water vapor also supports the water-origin results.
Outcomes and postoperative complications after transpelvic urethrostomy used as first-line surgery in 38 male cats with obstructive lower urinary tract disease
Authors: Dumartinet Caroline , Bernard Fabrice , Bernardé Antoine
Published: August 2021

Objectives

This article aimed to report on the short- and long-term outcomes after transpelvic urethrostomy (TPU) as a first-line surgery to treat obstructive lower urinary tract disease (OLUTD) in male cats.

Methods

A retrospective review and follow-up owner telephone questionnaire for cats with OLUTD undergoing TPU as a first-line surgery between 2013 and 2019, at a single referral hospital, were performed. A minimum follow-up period of 1 year was required to be included in the study. Short- and long-term complications were defined as those that occurred, respectively, within or after the first 4 weeks postoperatively.

Results

Thirty-eight male cats were included. The short-term complication rate was 18%. Idiopathic lower urinary tract disease (ILUTD) and stomal stenosis (SS) were the two most frequent short-term complications. Long-term complications were reported in 34% of the cats and included ILUTD, urinary tract infection and SS. The mortality rate was 5%. Eighty-two percent of the owners were satisfied with the postoperative outcome. The most common reason for owner dissatisfaction was the occurrence of SS, especially because these complications required multiple surgical revisions to be definitively managed. The long-term quality of life was considered to be good to very good by 89% of the owners. Ninety-one percent of the cats were free of clinical urinary signs at the time of the questionnaire completion.

Conclusions and relevance

TPU can be an acceptable first-line surgical technique to treat cats with OLUTD. Most cats experienced a good to very good quality of life after TPU. Most complications were transient or manageable medically. Most of the major complications were SS, which can be technically challenging to address and may require multiple revision surgeries.
A Texas-specific VS30 map incorporating geology and VS30 observations
Authors: Li Meibai , Rathje Ellen M , Cox Brady R , Yust Michael
Published: August 2021

A Texas-specific [Formula: see text] map that uses geostatistical kriging integrated with a region-specific geologic proxy, field measurements of [Formula: see text], and P-wave seismogram estimates of [Formula: see text] is developed. The region-specific geologic proxy is used first to predict [Formula: see text] from the surface geologic conditions across the state, and then geostatistical kriging with an external drift is used to incorporate the local [Formula: see text] measurements/estimates into the map. Compared with the [Formula: see text] map of Texas developed from a topographic slope proxy, the Texas-specific [Formula: see text] map predicts larger [Formula: see text] values across much of Texas, except for the Gulf Coast region where the values are similar. The utilization of kriging brings the Texas-specific [Formula: see text] map into better agreement with the in situ measurements and estimates of [Formula: see text]. The sensitivity of predicted ground motions by ShakeMap to changes in [Formula: see text] values is evaluated with a scenario earthquake in the Dallas–Fort Worth area. The results suggest smaller predicted ground motions due to the generally larger values of [Formula: see text] in the Texas-specific [Formula: see text] map as compared to the [Formula: see text] from the topographic proxy.
Extrinsic interactions in the microenvironment in vivo activate an antiapoptotic multidrug-resistant phenotype in CLL
Authors: Jayappa Kallesh D. , Gordon Vicki L. , Morris Christopher G. , Wilson Briana , Shetty B. Dharmaveer , Cios Konrad J. , Arora Puja C. , Isaac Krista M. , Saha Shekhar , Bender Timothy P. , Williams Michael E. , Portell Craig A. , Weber Michael J.
Published: August 2021

The Bcl-2 inhibitor venetoclax has yielded exceptional clinical responses in chronic lymphocytic leukemia (CLL). However, de novo resistance can result in failure to achieve negative minimal residual disease and predicts poor treatment outcomes. Consequently, additional proapoptotic drugs, such as inhibitors of Mcl-1 and Bcl-xL, are in development. By profiling antiapoptotic proteins using flow cytometry, we find that leukemic B cells that recently emigrated from the lymph node (CD69+/CXCR4Low) in vivo are enriched for cell clusters simultaneously overexpressing multiple antiapoptotic proteins (Mcl-1High/Bcl-xLHigh/Bcl-2High) in both treated and treatment-naive CLL patients. These cells exhibited antiapoptotic resistance to multiple BH-domain antagonists, including inhibitors of Bcl-2, Mcl-1, and Bcl-xL, when tested as single agents in a flow cytometry–based functional assay. Antiapoptotic multidrug resistance declines ex vivo, consistent with resistance being generated in vivo by extrinsic microenvironmental interactions. Surviving “persister” cells in patients undergoing venetoclax treatment are enriched for CLL cells displaying the functional and molecular properties of microenvironmentally induced multidrug resistance. Overcoming this resistance required simultaneous inhibition of multiple antiapoptotic proteins, with potential for unwanted toxicities. Using a drug screen performed using patient peripheral blood mononuclear cells cultured in an ex vivo microenvironment model, we identify novel venetoclax drug combinations that induce selective cytotoxicity in multidrug-resistant CLL cells. Thus, we demonstrate that antiapoptotic multidrug-resistant CLL cells exist in patients de novo and show that these cells persist during proapoptotic treatment, such as venetoclax. We validate clinically actionable approaches to selectively deplete this reservoir in patients.
Implication of Retrobulbar and internal carotid artery blood-flow-volume alterations for the pathogenesis of non-arteritic anterior ischemic optic neuropathy
Authors: Fu Zhiyong , Li Hongyang , Wang Yanling
Published: August 2021

Background

To analyze blood flow volume alteration that involved both retrobulbar artery and internal carotid artery (ICA) in patients with non-arteritic anterior ischemic optic neuropathy (NAION) and to assess their relevance for the pathogenesis of NAION.

Methods

Forty two patients with NAION (unilateral affected) and 42 age-matched controls participated in this study. By head-and-neck computed tomographic angiography (CTA), the diameter of ICA and ophthalmic artery (OA) were measured. By colour Doppler imaging (CDI), the mean blood flow velocity (Vm) and the blood flow volume of ICA and OA were measured or calculated. By optical coherence tomography angiography (OCTA), peripapillary and optic disc vessel density were measured. Data obtained from the affected side of the patients were compared to those of the contralateral healthy side and the control.

Results

Compared with the controls and the contralateral healthy side of the patients with NAION, the diameter of ICA, the blood flow volume of ICA and OA, the peripapillary and optic disc vessel density in the affected side decreased significantly (p < 0.05). However, there was no statistical difference in the diameter of OA (p = 0.179, 0.054 respectively), the Vm of OA (p = 0.052, 0.083 respectively), or the Vm of ICA (p = 0.364, 0.938 respectively) between groups. Peripapillary and optic disc vessel density were significantly positive correlated with the blood flow volume in ipsilateral ICA and OA in patients with NAION (all p < 0.01).

Conclusions

The reduction of blood flow volume was more prominent in OA and ICA than decrease of Vm, peripapillary and optic disc vessel density were significantly positive correlated with the blood flow volume of ipsilateral ICA and OA in patients with NAION.
Promoting helpful attention and interpretation patterns to reduce anxiety and depression in young people: weaving scientific data with young peoples’ lived experiences
Authors: Lau Jennifer Y. F. , Watkins-Muleba Rebecca , Lee Isabelle , Pile Victoria , Hirsch Colette R.
Published: August 2021

Background

Anxiety and depression are common, disabling and frequently start in youth, underscoring the need for effective, accessible early interventions. Empirical data and consultations with lived experience youth representatives suggest that maladaptive cognitive patterns contribute to and maintain anxiety and depression in daily life. Promotingadaptivecognitive patterns could therefore reflect “active ingredients” in the treatment and/or prevention of youth anxiety and depression. Here, we described and compared different therapeutic techniques that equipped young people with a more flexible capacity to use attention and/or promoted a tendency to positive/benign (over threatening/negative) interpretations of uncertain situations.

Methods

We searched electronic databases (PubMed, PsycINFO, EMBASE, and PsycARTICLES) for studies containing words relating to: intervention; youth; anxiety and/or depression and attention and/or interpretation, and selected studies which sought to reduce self-reported anxiety/depression in youth by explicitly altering attention and/or interpretation patterns. Ten young people with lived experiences of anxiety and depression and from diverse backgrounds were consulted on the relevance of these strategies in managing emotions in their daily lives and also whether there were additional strategies that could be targeted to promote adaptive thinking styles.

Results

Two sets of techniques, each targeting different levels of responding with different strengths and weaknesses were identified. Cognitive bias modification training (CBM) tasks were largely able to alter attention and interpretation biases but the effects of training on clinical symptoms was more mixed. In contrast, guided instructions that teach young people to regulate their attention or to evaluate alternative explanations of personally-salient events, reduced symptoms but there was little experimental data establishing the intervention mechanism. Lived experience representatives suggested that strategies such as deliberately recalling positive past experiences or positive aspects of oneself to counteract negative thinking.

Discussion

CBM techniques target clear hypothesised mechanisms but require further co-design with young people to make them more engaging and augment their clinical effects. Guided instructions benefit from being embedded in clinical interventions, but lack empirical data to support their intervention mechanism, underscoring the need for more experimental work. Feedback from young people suggest that combining complimentary techniques within multi-pronged “toolboxes” to develop resilient thinking patterns in youth is empowering.
Practice variation in the informed consent procedure for thrombolysis in acute ischemic stroke: a survey among neurologists and neurology residents
Authors: Zonjee Valentijn J. , Slenders Jos P. L. , de Beer Frank , Visser Marieke C. , ter Meulen Bastiaan C. , Van den Berg-Vos Renske M. , van Schaik Sander M.
Published: August 2021

Background

Obtaining informed consent for intravenous thrombolysis in acute ischemic stroke can be challenging, and little is known about if and how the informed consent procedure is performed by neurologists in clinical practice. This study examines the procedure of informed consent for intravenous thrombolysis in acute ischemic stroke in high-volume stroke centers in the Netherlands.

Methods

In four high volume stroke centers, neurology residents and attending neurologists received an online questionnaire concerning informed consent for thrombolysis with tissue-type plasminogen activator (tPA). The respondents were asked to report their usual informed consent practice for tPA treatment and their considerations on whether informed consent should be obtained.

Results

From the 203 invited clinicians, 50% (n = 101) completed the questionnaire. One-third of the neurology residents (n = 21) and 21% of the neurologists (n = 8) reported that they always obtain informed consent for tPA treatment. If a patient is not capable of providing informed consent, 30% of the residents (n = 19) reported that they start tPA treatment without informed consent. In these circumstances, 53% of the neurologists (n = 20) reported that the resident under their supervision would start tPA treatment without informed consent. Most neurologists (n = 21; 55%) and neurology residents (n = 45; 72%) obtained informed consent within one minute. None of the respondents used more than five minutes for informed consent. Important themes regarding obtaining informed consent for treatment were patients’ capacity, and medical, ethical and legal considerations.

Conclusion

The current practice of informed consent for thrombolysis in acute ischemic stroke varies among neurologists and neurology residents. If informed consent is obtained, most clinicians stated to obtain informed consent within one minute. In the future, a shortened information provision process may be applied, making a shift from informed consent to informed refusal, while still considering the patient’s capacity, stroke severity, and possible treatment delays.
Linear analysis on the onset of thermal convection of highly compressible fluids with variable viscosity and thermal conductivity in spherical geometry: implications for the mantle convection of super-Earths
Authors: Kameyama Masanori
Published: August 2021

In this paper, we carried out a series of linear analyses on the onset of thermal convection of highly compressible fluids whose physical properties strongly vary in space in convecting vessels either of a three-dimensional spherical shell or a two-dimensional spherical annulus geometry. The variations in thermodynamic properties (thermal expansivity and reference density) with depth are taken to be relevant for the super-Earths with ten times the Earth’s mass, while the thermal conductivity and viscosity are assumed to exponentially depend on depth and temperature, respectively. Our analysis showed that, for the cases with strong temperature dependence in viscosity and strong depth dependence in thermal conductivity, the critical Rayleigh number is on the order of 108–109, implying that the mantle convection of massive super-Earths is most likely to fall in the stagnant-lid regime very close to the critical condition, if the properties of their mantle materials are quite similar to the Earth’s. Our analysis also demonstrated that the structures of incipient flows of stagnant-lid convection in the presence of strong adiabatic compression are significantly affected by the depth dependence in thermal conductivity and the geometries of convecting vessels, through the changes in the static stability of thermal stratification of the reference state. When the increase in thermal conductivity with depth is sufficiently large, the thermal stratification can be greatly stabilized at depth, further inducing regions of insignificant fluid motions above the bottom hot boundaries in addition to the stagnant lids along the top cold surfaces. We can therefore speculate that the stagnant-lid convection in the mantles of massive super-Earths is accompanied by another motionless regions at the base of the mantles if the thermal conductivity strongly increases with depth (or pressure), even though their occurrence is hindered by the effects the spherical geometries of convecting vessels.
The difficulty of continuing sports activities after open-wedge high tibial osteotomy in patient with medial knee osteoarthritis: a retrospective case series at 2-year-minimum follow-up
Authors: Maeda Shugo , Chiba Daisuke , Sasaki Eiji , Oyama Tetsushi , Sasaki Tomoyuki , Otsuka Hironori , Ishibashi Yasuyuki
Published: August 2021

Purpose

This study aimed to investigate the rate at which patients returned to sports after open wedge high tibial osteotomy and identify the continuity of sports activity post-operatively.

Methods

Thirty-five patients (40 knees) who underwent open-wedge high tibial osteotomy (OW-HTO) in medial knee osteoarthritis were included in this study. The mean age of the patients who underwent surgery was 55.1 ± 10.7 years, and the mean follow-up period was 41.0 ± 24.7 months. Clinical results and radiographic parameters calculated in standing whole-leg radiographs preoperatively, post-operatively, and at the final follow-up were evaluated.

Results

Thirty-one patients (88.6%) were able to return to preoperative sports activity; however, only 14 patients (40.0%) completely returned to preoperative sports activity levels. Of the 31 patients who returned to sports activity, 10 patients (32.3%) maintained post-operative sporting activity levels at the final follow-up. In radiographic parameters, the weight-bearing line ratio was considered loss of correction in the post-operative period leading to the final follow-up. Patients who completely returned to sports and maintained sporting activity levels at the final follow-up had significantly higher the Knee Injury and Osteoarthritis Outcome Score pain subscale values and lower visual analogue scale of knee pain at pre-surgery and final follow-up than other patients, including those who partially returned to sports.

Conclusions

The proportion of patients who returned to sports after OW-HTO and were able to participate in competitions at the same activity level as before surgery was low and insufficient.

Level of evidence

Retrospective case series, IV
Profiling Combat Sports Athletes: Competitive History and Outcomes According to Sports Type and Current Level of Competition
Authors: Barley Oliver R. , Harms Craig A.
Published: August 2021

Background

This study aimed to investigate the competitive history (the age when training and competing started), training habits and patterns of winning and losing of competitive combat sports athletes across different combat sports as well as the level of competition (e.g. amateurs, state-level and elite).

Methods

Competitors (N = 298) from mixed martial arts (MMA), Muay Thai/kickboxing, boxing, Brazilian jiu-jitsu (BJJ), wrestling, judo and traditional striking sports (TSS) completed an online questionnaire.

Results

Most athletes began competing in their mid-teenage years and competing soon after except for wrestlers who began earlier. Elite athletes began training earlier than amateurs (13.75 ± 7.75 years and 16.2 ± 7.45 years, p<0.01, respectively). Training habits were similar across sports (~4 combat and ~3 non-combat training sessions per week), except for MMA and wrestling which did more combat sports-specific training than Judo and TSS. Wrestlers did more non-combat sports-specific training than all other sports. Elite athletes completed more combat sessions per week than their lower-level contemporaries (4.64 ± 2.49 and 3.9 ± 1.44, p=0.01, respectively). Patterns of winning or losing were consistent across sports, except for amateur athletes who were more likely to report all their victories by points and none of their victories by submission or pin. Additionally, elite athletes are less likely to report none of their victories coming by knockout.

Conclusions

Results may indicate that finishing ability is a key distinguisher of competitive level. The present study provides normative data for training and competing habits for athletes, support staff and regulators to use.
Large California wildfires: 2020 fires in historical context
Authors: Keeley Jon E. , Syphard Alexandra D.
Published: August 2021

Background

California in the year 2020 experienced a record breaking number of large fires. Here, we place this and other recent years in a historical context by examining records of large fire events in the state back to 1860. Since drought is commonly associated with large fire events, we investigated the relationship of large fire events to droughts over this 160 years period.

Results

This study shows that extreme fire events such as seen in 2020 are not unknown historically, and what stands out as distinctly new is the increased number of large fires (defined here as > 10,000 ha) in the last couple years, most prominently in 2020. Nevertheless, there have been other periods with even greater numbers of large fires, e.g., 1929 had the second greatest number of large fires. In fact, the 1920’s decade stands out as one with many large fires.

Conclusions

In the last decade, there have been several years with exceptionally large fires. Earlier records show fires of similar size in the nineteenth and early twentieth century. Lengthy droughts, as measured by the Palmer Drought Severity Index (PDSI), were associated with the peaks in large fires in both the 1920s and the early twenty-first century.
The effect of using technology for work on burnout and work productivity among Saudi board residents: a cross-sectional study
Authors: Al-Khudhayr Abrar Mohammad , Al-Shaghab Mariyyah Ahmad , Al-Jabr Qasem Mohammad
Published: August 2021

Background

The use of technology for work has become an unavoidable component of most occupations. It is considered a double-edged sword; it has a massive impact on employees’ mental health and productivity, mainly when used outside the working hours. This practice is referred to as technology-assisted supplemental work (TASW). This study aimed to determine the effect of supplemental work using technology behavior on burnout levels among Saudi board residents and its consequences on work productivity.

Results

Three hundred seventy-seven residents were involved in this study to assess their TASW behavior, burnout level, and presenteeism. The Maslach Burnout Inventory (MBI) scale is used to assess burnout, which is composed of three subscales: emotional exhaustion (EE), depersonalization (DP), and personal accomplishment (PA). This study revealed that a high risk of EE was found among 52.5% of residents, 12.2% were at high risk of DP, and 53.1% had low PA. The mean score of TASW was 19.7 (SD 3.75) out of 30 points, while the mean score of presenteeism (SPS-6) was 18.5 (SD 4.49) out of 30 points. A significant correlation was found between SPS-6 and MBI subscales including emotional exhaustion (r=−0.642, p<0.001), depersonalization (r=−0.406, p<0.001), and personal accomplishment (r=0.206, p<0.001), but association with TASW did not reach statistical significance (p>0.05).

Conclusion

Burnout “specifically Emotional Exhaustion” was noted to be significantly high among residents in different specialties in Saudi Arabia. Furthermore, several factors in the study were evidently demonstrated to be highly related to burnout which is directly associated with lost work productivity. However, our study suggests that extra working hours at home using technology were not associated with burnout or an increase in productivity.
ΥΠΟΛΟΓΙΣΜΟΣ ΕΠΙΔΟΣΗΣ ΑΡΧΕΙΩΝ ΣΕ ΑΠΛΕΣ ΚΑΙ ΜΑΖΙΚΕΣ ΕΡΩΤΗΣΕΙΣ
Authors: Μανωλόπουλος Ιωάννης
Published: August 2021

Η ΔΙΑΤΡΙΒΗ ΜΕΛΕΤΑ ΤΗΝ ΕΠΙΔΟΣΗ ΕΝΟΣ ΥΠΟΛΟΓΙΣΤΙΚΟΥ ΣΥΣΤΗΜΑΤΟΣ ΠΟΥ ΚΑΛΕΙΤΑΙ ΝΑ ΑΝΙΧΝΕΥΣΕΙ ΚΑΠΟΙΕΣ ΠΛΗΡΟΦΟΡΙΕΣ ΑΠΟ ΤΑ ΔΕΔΟΜΕΝΑ ΠΟΥ ΦΥΛΑΣΣΟΝΤΑΙ ΣΤΗΝ ΚΕΝΤΡΙΚΗ 'Η ΣΤΗ ΔΕΥΤΕΡΕΥΟΥΣΑ ΜΝΗΜΗ ΤΟΥ ΥΠΟΛΟΓΙΣΤΗ. ΓΙΑ ΤΗΝ ΑΠΟΤΕΛΕΣΜΑΤΙΚΗ ΑΝΤΛΗΣΗ ΤΩΝ ΠΛΗΡΟΦΟΡΙΩΝ, ΤΑ ΔΕΔΟΜΕΝΑ ΔΟΜΟΥΝΤΑΙ ΚΑΙ ΥΠΟΒΑΛΛΟΝΤΑΙ ΣΕ ΑΠΛΕΣ ΚΑΙ ΜΑΖΙΚΕΣ ΕΡΩΤΗΣΕΙΣ. ΑΠΛΗ ΕΡΩΤΗΣΗ ΕΙΝΑΙ Η ΕΡΩΤΗΣΗ ΕΚΕΙΝΗ ΠΟΥ ΑΝΑΖΗΤΑ ΜΙΑ ΜΟΝΟ ΕΓΓΡΑΦΗ ΤΗΣ ΔΟΜΗΣ. ΜΑΖΙΚΗ ΕΡΩΤΗΣΗ ΕΙΝΑΙ ΕΚΕΙΝΗ ΠΟΥ ΑΝΑΖΗΤΑ ΠΟΛΛΕΣ ΕΓΓΡΑΦΕΣ ΚΑΙ ΜΠΟΡΕΙ ΝΑ ΕΙΝΑΙ ΔΥΟ ΜΟΡΦΩΝ. ΜΙΑ ΜΑΖΙΚΗ ΕΡΩΤΗΣΗ ΕΙΝΑΙ ΤΗΣ ΠΡΩΤΗΣ (ΔΕΥΤΕΡΗΣ) ΜΟΡΦΗΣ ΣΑΝ ΟΙ ΕΓΓΡΑΦΕΣ ΤΗΣ ΑΠΑΝΤΗΣΗΣ ΑΦΟΡΟΥΝ ΤΟΝ ΙΔΙΟ ΧΡΗΣΤΗ (ΠΟΛΛΟΥΣ ΧΡΗΣΤΕΣ). ΧΡΗΣΙΜΟΠΟΙΩΝΤΑΣ ΑΝΑΛΥΤΙΚΕΣ ΜΕΘΟΔΟΥΣ ΥΠΟΛΟΓΙΖΟΥΜΕ ΤΗΝ ΕΠΙΔΟΣΗ ΑΝΑΖΗΤΗΣΗΣ ΑΠΛΩΝ ΚΑΙ ΜΑΖΙΚΩΝ ΕΡΩΤΗΣΕΩΝ ΣΕ: (Α) ΠΙΝΑΚΕΣ ΠΟΥ ΕΙΝΑΙ ΑΠΟΘΗΚΕΥΜΕΝΟΙ ΣΤΗΝ ΚΥΡΙΑ ΜΝΗΜΗ. ΠΡΟΤΕΙΝΟΝΤΑΙ ΝΕΕΣ ΤΕΧΝΙΚΕΣ ΓΙΑ ΤΗΝ ΑΠΟΤΕΛΕΣΜΑΤΙΚΗ ΑΠΑΝΤΗΣΗ ΤΩΝ ΜΑΖΙΚΩΝ ΕΡΩΤΗΣΕΩΝ ΠΟΥ ΒΑΣΙΖΟΝΤΑΙ ΣΤΗ ΣΕΙΡΙΑΚΗ, ΔΥΑΔΙΚΗ ΚΑΙ ΣΤΗΝ ΑΝΑΖΗΤΗΣΗ ΠΑΡΕΜΒΟΛΗΣ. (Β) ΣΕΙΡΙΑΚΑ ΔΕΙΚΤΟΔΟΤΗΜΕΝΑ (ΣΔ) ΑΡΧΕΙΑ, ΤΩΝ ΟΠΟΙΩΝ ΤΟ ΠΕΡΙΕΧΟΜΕΝΟ ΑΛΛΑΖΕΙ ΧΡΟΝΙΚΑ, ΠΟΥ ΕΙΝΑΙ ΑΠΟΘΗΚΕΥΜΕΝΑ ΣΤΗ ΔΕΥΤΕΡΕΥΟΥΣΑ ΜΝΗΜΗ ΚΑΙ ΠΕΡΙΕΧΟΥΝ ΕΓΓΡΑΦΕΣ ΣΤΑΘΕΡΟΥ 'Η ΜΕΤΑΒΛΗΤΟΥ ΜΗΚΟΥΣ. ΠΡΟΤΕΙΝΕΤΑΙ ΜΙΑ ΝΕΑ ΠΟΛΙΤΙΚΗ ΟΡΓΑΝΩΣΗΣ ΜΗΚΟΥΣ. ΠΡΟΤΕΙΝΕΤΑΙ ΜΙΑ ΝΕΑ ΠΟΛΙΤΙΚΗ ΟΡΓΑΝΩΣΗΣ ΣΔ ΑΡΧΕΙΟΥ ΜΕ ΑΞΙΟΣΗΜΕΙΩΤΗ ΕΠΙΔΟΣΗ ΟΤΑΝ ΟΙ ΕΓΓΡΑΦΕΣ ΕΙΝΑΙ ΜΕΤΑΒΛΗΤΟΥ ΜΗΚΟΥΣ. (Γ) ΣΔ ΚΑΙ ΤΥΧΑΙΑ ΑΡΧΕΙΑ ΠΟΥ ΕΙΝΑΙ ΑΠΟΘΗΚΕΥΜΕΝΑ ΣΕ ΔΙΑΔΟΧΙΚΟΥΣ ΚΥΛΙΝΔΡΟΥΣ. Η ΑΝΑΛΥΣΗ ΥΠΟΛΟΓΙΖΕΙ ΤΙΣ ΠΕΡΙΠΤΩΣΕΙΣ ΠΟΥ ΑΝΑΖΗΤΟΥΜΕΝΕΣ ΕΓΓΡΑΦΕΣ ΕΙΝΑΙ ΔΙΑΚΡΙΤΕΣ ΚΑΙ ΜΗ ΔΙΑΚΡΙΤΕΣ. ΤΑ ΑΠΟΤΕΛΕΣΜΑΤΑ ΜΠΟΡΕΙ ΝΑ ΒΟΗΘΗΣΟΥΝ ΤΟΥΣ ΣΧΕΔΙΑΣΤΕΣ ΚΑΙ ΑΝΑΛΥΤΕΣ ΣΥΣΤΗΜΑΤΩΝ ΚΑΘΩΣ ΚΑΙ ΔΙΑΧΕΙΡΙΣΤΕΣ ΒΑΣΕΩΝ ΔΕΔΟΜΕΝΩΝ ΩΣΤΕ ΝΑ ΥΛΟΠΟΙΗΣΟΥΝ ΠΛΗΡΟΦΟΡΙΑΚΑ ΣΥΣΤΗΜΑΤΑ ΜΕ ΒΕΛΤΙΩΜΕΝΗ ΕΠΙΔΟΣΗ.
ΠΗΛΙΝΕΣ ΜΗΤΡΕΣ ΑΓΓΕΙΩΝ ΑΠΟ ΤΗΝ ΠΕΛΛΑ. ΣΥΜΒΟΛΗ ΣΤΗ ΜΕΛΕΤΗ ΤΗΣ ΕΛΛΗΝΙΣΤΙΚΗΣ ΚΕΡΑΜΙΚΗΣ
Authors: Ακαμάτης Ιωάννης
Published: August 2021

ΣΤΗ ΜΕΛΕΤΗ ΕΞΕΤΑΖΟΝΤΑΙ 330 ΜΗΤΡΕΣ, ΤΜΗΜΑΤΑ ΚΑΙ ΘΡΑΥΣΜΑΤΑ ΜΗΤΡΩΝ ΓΙΑ ΤΗΝ ΚΑΤΑΣΚΕΥΗ ΑΝΑΓΛΥΦΩΝ ΑΓΓΕΙΩΝ ΤΗΣ ΕΛΛΗΝΙΣΤΙΚΗΣ ΕΠΟΧΗΣ. ΒΡΕΘΗΚΑΝ ΣΕ ΕΡΓΑΣΤΗΡΙΟ ΚΕΡΑΜΙΚΗΣ ΣΤΟ ΕΜΠΟΡΙΚΟ ΚΕΝΤΡΟ ΤΗΣ ΠΕΛΛΑΣ. ΟΛΕΣ ΣΧΕΔΟΝ ΟΙ ΜΗΤΡΕΣ ΠΡΟΕΡΧΟΝΤΑΙ ΑΠΟ ΤΟ ΣΤΡΩΜΑ ΚΑΤΑΣΤΡΟΦΗΣ ΔΥΟ ΣΥΝΕΧΟΜΕΝΩΝ ΔΩΜΑΤΙΩΝ ΤΟΥ ΕΡΓΑΣΤΗΡΙΟΥ. ΚΑΤΑΣΚΕΥΑΖΟΝΤΑΝ ΣΤΟ ΕΡΓΑΣΤΗΡΙΟ, ΠΑΝΩ ΣΤΟΝ ΤΡΟΧΟ, ΜΕ ΝΤΟΠΙΟ ΠΗΛΟ ΚΑΙ ΔΙΑΚΟΣΜΟΥΝΤΑΝ ΜΕ ΙΔΙΑΙΤΕΡΕΣ ΣΦΡΑΓΙΔΕΣ, ΑΛΛΑ ΚΑΙ ΜΕ ΤΟ ΧΕΡΙ. ΟΙ ΠΕΡΙΣΣΟΤΕΡΕΣ ΕΧΟΥΝ ΦΥΤΙΚΟ ΔΙΑΚΟΣΜΟ, ΕΝΩ ΑΡΚΕΤΕΣ ΚΟΣΜΟΥΝΤΑΙ ΜΕ ΔΙΗΓΗΜΑΤΙΚΕΣ ΠΑΡΑΣΤΑΣΕΙΣ. ΕΧΟΥΝ ΑΠΟΜΟΝΩΘΕΙ 108 ΣΦΡΑΓΙΔΕΣ ΜΕ ΦΥΤΙΚΑ ΚΟΣΜΗΜΑΤΑ, 90 ΜΕ ΑΝΘΡΩΠΙΝΕΣ ΜΟΡΦΕΣ, 16 ΜΕ ΖΩΙΚΕΣ ΚΑΙ 8 ΜΕ ΑΝΤΙΚΕΙΜΕΝΑ. ΜΕ ΒΑΣΗ ΤΙΣ ΣΦΡΑΓΙΔΕΣ ΑΥΤΕΣ ΕΧΕΙ ΑΝΑΓΝΩΡΙΣΤΕΙ ΜΙΑ ΣΕΙΡΑ ΑΠΟ ΑΠΟΣΠΑΣΜΑΤΙΚΑ ΣΩΖΟΜΕΝΑ ΑΓΓΕΙΑ ΤΟΥ ΕΡΓΑΣΤΗΡΙΟΥ ΣΤΟΝ ΕΥΡΥΤΕΡΟ ΜΑΚΕΔΟΝΙΚΟ ΧΩΡΟ. ΟΙ ΜΗΤΡΕΣ ΜΕ ΦΥΤΙΚΑΚΟΣΜΗΜΑΤΑ ΚΑΛΥΠΤΟΝΤΑΙ ΣΥΝΗΘΩΣ ΜΕ ΦΥΛΛΑ, ΕΛΙΚΕΣ ΚΑΙ ΑΝΘΕΜΙΑ 'Η ΡΟΔΑΚΕΣ, ΕΝΩ ΟΙΜΗΤΡΕΣ ΜΕ ΔΙΗΓΗΜΑΤΙΚΕΣ ΠΑΡΑΣΤΑΣΕΙΣ ΕΧΟΥΝ ΜΙΑ ΖΩΝΗ ΜΕ ΜΙΑ ΣΥΓΚΕΚΡΙΜΕΝΗ ΠΑΡΑΣΤΑΣΗ, ΠΟΥ ΕΜΠΝΕΕΕΤΑΙ ΑΠΟ ΦΙΛΟΛΟΓΙΚΑ ΚΕΙΜΕΝΑ ΤΗΣ ΑΡΧΑΙΟΤΗΤΑΣ. ΣΤΕΝΕΣ ΣΧΕΣΕΙΣ ΑΝΑΓΝΩΡΙΖΟΝΤΑΙ ΜΕ "ΕΠΙΤΟΜΕΣ" ΤΩΝ ΕΡΓΩΝ ΤΟΥ ΕΥΡΙΠΙΔΗ, ΣΟΦΟΚΛΗ Κ.Α. ΤΟ ΙΔΙΟ ΕΡΓΑΣΤΗΡΙ ΗΛΕΓΧΕ ΟΛΟΚΛΗΡΟ ΤΟ ΦΑΣΜΑ ΤΗΣ ΚΑΤΑΣΚΕΥΗΣ ΤΩΝ ΣΦΡΑΓΙΔΩΝ, ΤΗΣ ΚΑΤΑΣΚΕΥΗΣ ΚΑΙ ΔΙΑΚΟΣΜΗΣΗΣ ΤΩΝ ΜΗΤΡΩΝ, ΤΟ ΨΗΣΙΜΟ ΤΟΥ ΑΓΓΕΙΟΥ ΚΑΙ ΤΗ ΔΙΑΘΕΣΗ ΤΩΝ ΠΡΟΙΟΝΤΩΝ. ΟΙ ΜΗΤΡΕΣ ΚΑΤΑΣΚΕΥΑΣΤΗΚΑΝ ΑΠΟ ΤΕΣΣΕΡΙΣ ΤΕΧΝΙΤΕΣ. ΟΙ ΙΔΙΟΙ ΚΑΙ ΤΙΣ ΔΙΑΚΟΣΜΗΣΑΝ. Η ΠΑΡΑΓΩΓΗ ΤΟΥ ΕΡΓΑΣΤΗΡΙΟΥ ΔΕΝ ΠΕΡΙΟΡΙΖΕΤΑΙ ΣΤΗΝ ΚΑΤΑΣΚΕΥΗ ΚΑΙ ΔΙΑΘΕΣΗ ΠΡΟΙΟΝΤΩΝΤΗΣ ΑΝΑΓΛΥΦΗΣ ΚΕΡΑΜΙΚΗΣ. ΤΟ ΙΔΙΟ ΕΡΓΑΣΤΗΡΙ ΠΑΡΗΓΑΓΕ ΚΑΙ ΔΙΕΘΕΤΕ ΜΕΓΑΛΗ ΠΟΙΚΙΛΙΑ ΑΓΓΕΙΩΝ, ΑΛΛΑ ΚΑΙ ΑΛΛΩΝ ΠΡΟΙΟΝΤΩΝ. Η ΜΟΡΦΗ ΤΟΥ ΣΤΡΩΜΑΤΟΣ ΚΑΤΑΣΤΡΟΦΗΣ ΤΩΝ ΔΩΜΑΤΙΩΝ ΤΟΥ ΕΡΓΑΣΤΗΡΙΟΥ, ΚΑΘΩΣ ΚΑΙ ΠΟΛΛΩΝ ΑΛΛΩΝ ΚΑΤΑΣΤΗΜΑΤΩΝ, ΜΑΣ ΥΠΟΧΡΕΩΝΕΙ ΝΑ ΔΕΧΤΟΥΜΕ ΕΝΑ ΒΙΑΙΟ ΦΥΣΙΚΟ ΦΑΙΝΟΜΕΝΟ, ΕΝΑ ΣΕΙΣΜΟ, ΣΑΝ ΑΙΤΙΑ ΚΑΤΑΣΤΡΟΦΗΣ ΤΟΥ ΣΥΓΚΡΟΤΗΜΑΤΟΣ ΤΗΣ ΑΓΟΡΑΣ ΤΗΣ ΠΕΛΛΑΣ. ΑΝΑΛΟΓΕΣ ΣΥΝΘΗΚΕΣ ΕΧΟΥΝ ΠΑΡΑΤΗΡΗΘΕΙ ΚΑΙ ΣΕΑΛΛΑ ΤΜΗΜΑΤΑ ΤΗΣ ΠΟΛΗΣ. Η ΧΡΗΣΙΜΟΠΟΙΗΣΗ ΤΩΝ ΤΕΛΕΥΤΑΙΩΝ ΧΡΟΝΟΛΟΓΙΚΩΝ ΕΥΡΗΜΑΤΩΝΤΟΥ ΣΤΡΩΜΑΤΟΣ ΚΑΤΑΣΤΡΟΦΗΣ ΚΑΙ ΤΩΝ ΧΩΡΩΝ ΑΠΟΡΡΙΨΗΣ ΑΧΡΗΣΤΩΝ ΑΝΤΙΚΕΙΜΕΝΩΝ ΕΞΩ ΑΠΟ ΤΑ ΕΡΓΑΣΤΗΡΙΑ ΤΟΠΟΘΕΤΟΥΝ ΤΗΝ ΚΑΤΑΣΤΡΟΦΗ ΠΕΡΙ ΤΟ ΤΕΛΟΣ ΤΗΣ ΠΡΩΤΗΣ ΔΕΚΑΕΤΙΑΣΤΟΥ 1ΟΥ Π.Χ. ΑΙ.
ΟΙ ΝΑΟΙ ΤΟΥ ΑΓΙΟΥ ΝΙΚΟΛΑΟΥ ΣΤΗ ΒΙΤΣΑ ΚΑΙ ΤΟΥ ΑΓΙΟΥ ΜΗΝΑ ΣΤΟ ΜΟΝΟΔΕΝΔΡΙ. ΠΡΟΣΕΓΓΙΣΗ ΣΤΟ ΕΡΓΟ ΤΩΝ ΖΩΓΡΑΦΩΝ ΑΠΟ ΤΟ ΛΙΝΟΤΟΠΙ
Authors: Τούρτα Αναστασία
Published: August 2021

ΕΞΕΤΑΖΟΝΤΑΙ ΤΑ ΓΝΩΣΤΑ ΕΝΥΠΟΓΡΑΦΑ ΕΡΓΑ ΖΩΓΡΑΦΩΝ ΑΠΟ ΤΟ ΛΙΝΟΤΟΠΙ, ΤΟ ΒΛΑΧΟΦΩΝΟ ΧΩΡΙΟ ΤΟΥ ΓΡΑΜΜΟΥ. ΠΡΟΚΕΙΤΑΙ ΓΙΑ ΔΕΚΑΠΕΝΤΕ (15) ΤΟΙΧΟΓΡΑΦΗΜΕΝΟΥΣ ΝΑΟΥΣ ΠΟΥ ΧΡΟΝΟΛΟΓΟΥΝΤΑΙ ΑΠΟ ΤΟ 1570 ΩΣ ΤΟ 1656 ΚΑΙ ΕΙΝΑΙ ΔΙΕΣΠΑΡΜΕΝΟΙ, Σ'ΟΛΗ ΤΗ ΒΔ ΕΛΛΑΔΑ, ΩΣ ΤΟ PRILEP. ΟΙ ΖΩΓΡΑΦΟΙ ΑΠΟ ΤΟ ΛΙΝΟΤΟΠΙ ΑΠΟΤΕΛΟΥΝ ΤΟ ΠΑΛΙΟΤΕΡΟ ΓΝΩΣΤΟ ΠΑΡΑΔΕΙΓΜΑ ΚΑΤΟΙΚΩΝ ΟΡΕΙΝΗΣ ΚΟΙΝΟΤΗΤΑΣ ΜΕ ΕΞΕΙΔΙΚΕΥΣΗ ΣΕ ΣΥΓΚΕΚΡΙΜΕΝΟ ΤΟΜΕΑ ΚΑΛΛΙΤΕΧΝΙΚΗΣ ΠΑΡΑΓΩΓΗΣ, ΠΟΥ ΑΣΚΟΥΝ ΤΟ ΕΠΑΓΓΕΛΜΑ ΤΟΥΣ ΕΠΟΧΙΑΚΑ, ΜΕΤΑΚΙΝΟΥΜΕΝΟΙ ΣΕ ΟΜΑΔΕΣ ΟΙΚΟΓΕΝΕΙΑΚΗΣ ΔΟΜΗΣ. Η ΜΕΛΕΤΗ ΤΩΝ ΕΡΓΩΝ ΤΟΥΣ ΑΠΟΚΑΛΥΠΤΕΙ ΤΗΝ ΑΝΤΙΜΕΤΩΠΙΣΗ ΤΗΣ ΖΩΓΡΑΦΙΚΗΣ ΩΣ ΕΠΑΓΓΕΛΜΑ ΠΟΥ ΜΑΘΑΙΝΕΤΑΙ ΚΑΙ ΤΟΝ ΤΡΟΠΟ ΑΣΚΗΣΗΣ ΤΗΣ ΑΠΟ ΖΩΓΡΑΦΟΥΣ ΜΗ ΑΣΤΙΚΗΣ ΠΡΟΕΛΕΥΣΗΣ. ΠΡΟΣΦΕΡΕΙ ΕΠΙΣΗΣ ΜΙΑ ΕΠΟΠΤΕΙΑ ΤΗΣ ΕΞΕΛΙΞΗΣ ΤΗΣ ΕΝΤΟΙΧΙΑΣ ΖΩΓΡΑΦΙΚΗΣ ΣΤΗ ΒΔ ΕΛΛΑΔΑ ΑΠΟ ΤΑ ΤΕΛΗ ΤΟΥ 16ΟΥ ΩΣ ΤΑ ΜΕΣΑ ΤΟΥ 17ΟΥ ΑΙΩΝΑ. ΕΠΙΧΕΙΡΕΙΤΑΙ Η ΑΠΟΚΑΤΑΣΤΑΣΗ ΕΝΟΣ ΜΟΝΤΕΛΟΥ ΟΙΚΟΓΕΝΕΙΑΣ ΠΟΥ ΘΑ ΑΠΟΤΕΛΟΥΣΕ ΤΟΝ ΤΟΠΟ ΕΚΜΑΘΗΣΗΣ ΤΟΥ ΕΠΑΓΓΕΛΜΑΤΟΣ ΓΙΑ ΤΟΥΣ ΕΞΕΤΑΖΟΜΕΝΟΥΣ ΖΩΓΡΑΦΟΥΣ ΚΑΙ ΕΡΕΥΝΑΤΑΙΟ ΡΟΛΟΣ ΤΩΝ ΧΟΡΗΓΩΝ ΣΤΗ ΖΩΓΡΑΦΙΚΗ.
ΗΛΕΚΤΡΟΦΟΡΗΤΙΚΗ ΠΟΙΚΙΛΟΤΗΤΑ ΣΤΙΣ ΕΣΤΕΡΑΣΕΣ, ΥΠΕΡΟΞΕΙΔΑΣΕΣ ΚΑΙ ΟΞΙΝΕΣ ΦΩΣΦΑΤΑΣΕΣΣΕ ΜΕΡΙΚΑ ΑΥΤΟΦΥΗ ΕΛΛΗΝΙΚΑ ΕΙΔΗ ΤΩΝ ΓΕΝΩΝ HORDEUM ΚΑΙ ΤΑΕΝΙATHERUM
Authors: Συμεωνίδης Λάζαρος
Published: August 2021

ΣΕ ΟΡΙΖΟΝΤΑΙ ΠΥΚΤΗ ΑΜΥΛΟΥ ΕΡΕΥΝΗΘΗΚΑΝ ΤΑ ΗΛΕΚΤΡΟΦΟΡΗΤΙΚΑ ΠΡΟΤΥΠΑ ΤΩΝ ΤΕΣΣΑΡΩΝ ΥΠΕΡΟΞΕΙΔΑΣΩΝ ΚΑΙ ΟΞΙΝΩΝ ΦΩΣΦΑΤΑΣΩΝ ΣΕ 7 ΤΑΧΑ ΤΗΣ ΟΜΑΔΑΣ ΤΩΝ ΔΙΠΛΟΕΙΔΩΝ HORDEUM (2N=14) (H. MARINUM, H. MARINUM I ΚΑΙ H. HYSTRIX) ΤΩΝ ΤΕΤΡΑΠΛΟΕΙΔΩΝ HORDEUM (2N=28) (H. BULBOSUM, H. MURINUM SUBSP. LEPORINUM) ΚΑΙ ΤΗΣ ΟΜΑΔΑΣ TAENIATHERUM(2N=14) (T. CAPUT-MEDUSAE, T. CAPUT-MEDUSAE I) ΜΕ ΣΚΟΠΟ ΤΗΝ ΑΝΕΥΡΕΣΗ ΤΗΣ ΦΥΛΟΓΕΝΕΤΙΚΗΣ ΣΥΓΓΕΝΕΙΑΣ ΕΝΤΟΣ ΚΑΙ ΜΕΤΑΞΥ ΤΩΝ ΤΑΧΑ. ΜΕ ΒΑΣΗ ΤΑ ΠΕΙΡΑΜΑΤΙΚΑ ΜΑΣ ΑΠΟΤΕΛΕΣΜΑΤΑ ΤΑ 7 ΤΑΧΑ ΠΡΕΠΕΙ ΝΑ ΤΟΠΟΘΕΤΗΘΟΥΝ ΣΤΙΣ 3 ΠΑΡΑΚΑΤΩ ΟΜΑΔΕΣ: 1) ΔΙΠΛΟΕΙΔΗ HORDEUM (H. MARINUM, H. MARINUM I, H. HYSTRIX), 2) ΤΕΤΡΑΠΛΟΕΙΔΗ HORDEUM (H. BULBOSUM, H. MYRINUM SUBSP. LEPORINUM), 3) TAENIATHERUM (T. CAPUT- MEDUSAE, T.CAPUT-MEDUSAE I). ΤΑ ΠΡΟΤΥΠΑ ΤΩΝ ΕΣΤΕΡΑΣΩΝ, ΥΠΕΡΟΞΕΙΔΑΣΩΝ ΚΑΙ ΟΞΙΝΩΝ ΦΩΣΦΑΤΑΣΩΝ ΤΩΝ ΔΙΠΛΟΕΙΔΩΝ ΤΑΧΑ ΤΟΥ HORDEUM ΕΙΝΑΙ ΠΟΛΥ ΟΜΟΙΑ ΔΕΙΧΝΟΝΤΑΣ ΤΗΝ ΣΤΕΝΗ ΤΟΥΣ ΦΥΛΟΓΕΝΕΤΙΚΗ ΣΥΓΓΕΝΕΙΑ. ΤΟ ΙΔΙΟ ΙΣΧΥΕΙ ΓΙΑ ΤΑ ΔΥΟ ΤΑΧΑ ΤΟΥ ΓΕΝΟΥΣ TAENIATHERUM. TA TAXA ΤΗΣ ΟΜΑΔΑΣ TAENIATHERUM ΣΥΓΚΡΙΝΟΜΕΝΑ ΜΕ ΤΑ ΔΙΠΛΟΕΙΔΗ ΚΑΙ ΤΑ ΤΕΤΡΑΠΛΟΕΙΔΗ HORDEUM ΔΕΙΧΝΟΥΝ ΕΝΑ ΜΙΚΡΟ ΒΑΘΜΟ ΦΥΛΟΓΕΝΕΤΙΚΗΣ ΣΥΓΓΕΝΕΙΑΣ ΚΑΙ ΦΑΙΝΕΤΑΙ ΝΑΑΠΕΧΕΙ ΕΞ ΙΣΟΥ ΑΠ'ΑΥΤΑ. ΤΑ ΤΑΧΑ ΤΩΝ ΤΕΤΡΑΠΛΟΕΙΔΩΝ HORDEUM ΔΕΙΧΝΟΥΝ ΜΕΓΑΛΥΤΕΡΟΒΑΘΜΟ ΦΥΛΟΓΕΝΕΤΙΚΗΣ ΣΥΓΓΕΝΕΙΑΣ ΜΕ ΤΑ ΤΑΧΑ ΤΩΝ ΔΙΠΛΟΕΙΔΩΝ HORDEUM ΠΑΡΑ ΜΕ ΤΑ ΤΑΧΑ ΤΗΣ ΟΜΑΔΑΣ TAENIATHERUM. ΕΠΙΠΛΕΟΝ ΜΕΛΕΤΗΘΗΚΕ Η ΕΠΙΔΡΑΣΗ ΤΟΥ ΟΡΓΑΝΟΦΩΣΦΟΡΙΚΟΥ ΑΝΑΣΤΟΛΕΑ DIBROM (ΔΙΜΕΘΥΛΟ-1,2-ΔΙΒΡΩΜΟ- 2-2-ΔΙΧΛΩΡΟΑΙΘΥΛΟ-ΦΩΣΦΟΡΙΚΟΥ ΕΣΤΕΡΑ) ΣΤΙΣ ΠΟΛΛΑΠΛΕΣ ΜΟΡΦΕΣ ΤΩΝ ΕΣΤΕΡΑΣΩΝ ΤΟΥ ΒΛΑΣΤΟΥ ΤΩΝ ΕΙΔΩΝ HORDEUM, IN VITRO,ΚΑΘΩΣ ΕΠΙΣΗΣ ΤΑ ΑΠΟΤΕΛΕΣΜΑΤΑ ΔΙΑΦΟΡΩΝ ΣΥΓΚΕΝΤΡΩΣΕΩΝ ΤΟΥ DIBROM ΣΤΗ ΒΛΑΣΤΗΣΗ ΤΩΝ ΣΠΕΡΜΑΤΩΝ ΚΑΙ ΣΤΗΝ ΑΥΞΗΣΗ ΤΟΥ ΒΛΑΣΤΟΥ ΚΑΙ ΤΗΣ ΡΙΖΑΣ ΤΟΥ H. MURINUM SUBSP. LEPORINUM. ΕΥΡΕΘΗ ΟΤΙ ΤΟ DIBROM ΕΙΝΑΙ ΕΝΑΣ ΟΥΣΙΩΔΗΣ ΑΝΑΣΤΟΛΕΑΣ ΤΩΝ ΕΣΤΕΡΑΣΩΝ. Η ΒΛΑΣΤΙΚΟΤΗΤΑ ΤΩΝ ΣΠΕΡΜΑΤΩΝ ΚΑΙ Η ΑΥΞΗΣΗ ΤΟΥ ΒΛΑΣΤΟΥ ΚΑΙ ΤΗΣ ΡΙΖΑΣ ΕΔΕΙΞΕ ΑΡΝΗΤΙΚΗ ΣΥΣΧΕΤΙΣΗ ΜΕ ΤΙΣ ΑΥΞΑΝΟΜΕΝΕΣ ΣΥΓΚΕΝΤΡΩΣΕΙΣ ΤΟΥ DIBROM.
ΜΕΛΕΤΗ ΤΟΥ ΦΛΟΙΩΜΑΤΟΣ ΣΤΟ ΑΓΡΩΣΤΩΔΕΣ ΦΥΤΟ AEGILOPS COMOSA VAR THESSALICA ΣΕ ΕΠΙΠΕΔΟ ΟΠΤΙΚΗΣ ΚΑΙ ΗΛΕΚΤΡΟΝΙΚΗΣ ΜΙΚΡΟΣΚΟΠΙΑΣ
Authors: Ελευθερίου Ελευθέριος
Published: August 2021

Η ΟΝΤΟΓΕΝΕΣΗ ΚΑΙ Η ΔΙΑΦΟΡΟΠΟΙΗΣΗ ΤΟΥ ΦΛΟΙΩΜΑΤΟΣ ΣΤΟ ΑΓΡΩΣΤΩΔΕΣ ΦΥΤΟ AEGILOPS COMOSA VAR. THESSALICA ΜΕΛΕΤΗΘΗΚΕ ΜΕ ΤΟ ΟΠΤΙΚΟ ΚΑΙ ΗΛΕΚΤΡΟΝΙΚΟ ΜΙΚΡΟΣΚΟΠΙΟ. ΒΡΕΘΗΚΕ ΟΤΙ ΤΟ ΦΥΤΟ ΑΥΤΟ ΑΝΗΚΕΙ ΣΤΑ C3 ΦΩΤΟΣΥΝΘΕΤΙΚΑ ΕΙΔΗ. ΣΤΑ ΦΥΛΛΑ ΚΑΙ ΤΟ ΒΛΑΣΤΟ ΤΑ ΗΘΜΟΣΤΟΙΧΕΙΑ ΠΡΩΤΟΦΛΟΙΩΜΑΤΟΣ ΔΙΑΦΟΡΟΠΟΙΟΥΝΤΑΙ ΝΩΡΙΤΕΡΑ ΠΑΡΑ ΤΟΥ ΜΕΤΑΦΛΟΙΩΜΑΤΟΣ, ΑΛΛΑ ΣΥΝΤΟΜΑ ΜΕΤΑ ΤΗΝ ΩΡΙΜΑΝΣΗ ΤΟΥΣ ΚΑΤΑΣΤΡΕΦΟΝΤΑΙ. ΑΝΤΙΘΕΤΑ ΣΤΗ ΡΙΖΑ ΤΑ ΗΘΜΟΣΤΟΙΧΕΙΑ ΠΡΩΤΟΦΛΟΙΩΜΑΤΟΣ ΔΕΝ ΚΑΤΑΣΤΡΕΦΟΝΤΑΙ, ΠΡΑΓΜΑ ΠΟΥ ΑΠΟΔΙΔΕΤΑΙ ΣΤΗΝΥΠΑΡΞΗ ΣΥΝΟΔΩΝ ΚΥΤΤΑΡΩΝ. ΙΔΙΑΙΤΕΡΑ ΣΤΗ ΡΙΖΑ ΜΕΛΕΤΗΘΗΚΕ Η ΟΝΤΟΓΕΝΕΣΗ ΤΟΥ ΠΡΩΤΟΦΛΟΙΩΜΑΤΟΣ ΜΕΣΑ ΑΠΟ ΔΙΑΔΟΧΙΚΕΣ ΑΣΥΜΜΕΤΡΕΣ ΚΥΤΤΑΡΟΔΙΑΙΡΕΣΕΙΣ, ΣΤΙΣ ΟΠΟΙΕΣ ΟΙ ΜΙΚΡΟΣΩΛΗΝΙΣΚΟΙ ΔΙΑΔΡΑΜΑΤΙΖΑΝ ΣΗΜΑΝΤΙΚΟ ΡΟΛΟ. ΤΑ ΠΛΑΣΤΙΔΙΑ ΑΝΑΠΤΥΣΣΟΥΝ ΣΦΗΝΟΕΙΔΗΚΡΥΣΤΑΛΛΟΕΙΔΗ ΕΓΚΛΕΙΣΤΑ ΠΡΩΤΕΙΝΙΚΗΣ ΦΥΣΗΣ ΚΑΙ ΑΠΟΤΕΛΟΥΝ ΤΗΝ ΠΡΩΤΗ ΕΝΔΕΙΞΗ ΕΝΑΡΞΗΣ ΔΙΑΦΟΡΟΠΟΙΗΣΗΣ. ΤΑ ΩΡΙΜΑ ΗΘΜΟΣΤΟΙΧΕΙΑ ΣΤΕΡΟΥΝΤΑΙ ΛΕΙΤΟΥΡΓΙΚΟΥ ΠΥΡΗΝΑ, ΟΡΓΑΝΩΜΕΝΟΥ ΚΥΤΟΠΛΑΣΜΑΤΟΣ, ΡΙΒΟΣΩΜΑΤΩΝ, ΔΙΚΤΥΟΣΩΜΑΤΩΝ, ΜΙΚΡΟΣΩΛΗΝΙΣΚΟΥ ΚΑΙ ΧΥΜΟΤΟΠΙΩΝ.
Περιβάλλοντα αποθέσεως των ιζημάτων του Πηδάσου (Ν.Δ. Πελοπόννησος)
Authors: Κοντόπουλος Νικόλαος
Published: August 2021

Η ΜΕΛΕΤΗ ΑΥΤΗ ΕΠΙΧΕΙΡΕΙ ΜΙΑ ΛΕΠΤΟΜΕΡΗ ΑΝΑΛΥΣΗ ΤΩΝ ΠΛΕΙΟΚΑΙΝΙΚΩΝ ΙΖΗΜΑΤΩΝ ΤΟΥ ΠΗΔΑΣΟΥ (ΠΕΡΙΟΧΗ ΠΛΗΣΙΟΝ ΤΗΣ ΠΥΛΟΥ). Η ΑΝΑΛΥΣΗ ΑΥΤΗ ΠΡΑΓΜΑΤΩΝΕΤΑΙ ΜΕ ΥΠΑΙΘΡΙΑ ΕΡΓΑΣΙΑ, Η ΟΠΟΙΑ ΟΜΩΣ ΣΥΝΔΥΑΣΤΗΚΕ ΑΠΟ ΤΗ ΜΙΑ ΜΕΡΙΑ ΜΕ ΜΕΓΑΛΟ ΦΑΣΜΑ ΜΕΘΟΔΩΝ ΤΗΣ ΙΖΗΜΑΤΟΛΟΓΙΑΣ, ΟΠΩΣ ΕΙΝΑΙ Η ΚΟΚΚΟΜΕΤΡΙΑ ΚΑΙ ΟΙ ΜΕΘΟΔΟΙ ΠΡΟΣΔΙΟΡΙΣΜΟΥ ΑΡΓΙΛΛΩΝ ΟΡΓΑΝΙΚΟΥ ΥΛΙΚΟΥ ΡΗ, ΑΝΘΡΑΚΙΚΟΥ ΑΣΒΕΣΤΙΟΥ (CACO3) ΚΑΙ ΑΠΟ ΤΗΝ ΑΛΛΗ ΜΕ ΣΤΑΤΙΣΤΙΚΗ ΣΥΜΠΕΡΑΣΜΑΤΟΛΟΓΙΑ. ΤΑ ΑΠΟΤΕΛΕΣΜΑΤΑ ΤΗΣ ΑΝΑΛΥΣΗΣ ΑΥΤΗΣ ΠΡΟΣΔΙΟΡΙΖΟΥΝ ΑΠΟ ΤΗ ΜΙΑ ΜΕΡΙΑ ΤΟΝ ΥΔΡΟΔΥΝΑΜΙΚΟ ΧΑΡΑΚΤΗΡΑ ΤΗΣ ΑΠΟΘΕΣΗΣ ΤΩΝ ΙΖΗΜΑΤΩΝ ΤΟΥ ΠΗΔΑΣΟΥ ΜΕΣΑ ΑΠΟ ΔΙΑΓΡΑΜΜΑΤΑ Σ, Μ, CM, AM, LM (ΠΕΡΙΒΑΛΛΟΝ ΑΠΟΘΕΣΗΣ ΘΕΡΜΙΚΗΣ ΕΝΕΡΓΕΙΑΣ, ΠΕΡΙΒΑΛΛΟΝ ΑΠΟΘΕΣΗΣ ΟΜΟΓΕΝΩΝ ΑΙΩΡΗΜΑΤΩΝ) ΚΑΙ ΑΠΟ ΤΗΝ ΑΛΛΗ ΔΕΙΧΝΟΥΝ ΤΕΣΣΕΡΑ ΚΥΡΙΑ ΠΕΡΙΒΑΛΛΟΝΤΑ ΑΠΟΘΕΣΗΣ ΙΖΗΜΑΤΩΝ ΑΠΟ ΤΑ ΚΑΤΩ ΠΡΟΣ ΤΑ ΠΑΝΩ: ΠΟΤΑΜΙΟ, ΛΙΜΝΟΘΑΛΑΣΣΗΣ, ΠΑΡΑΛΙΑΚΗΣ ΠΑΛΙΡΡΟΙΑΚΗΣ ΚΑΙ ΥΠΟΠΑΡΑΚΤΙΟ ΠΕΡΙΒΑΛΛΟΝ. ΕΠΙΠΛΕΟΝ, ΚΑΘΕ ΕΝΑ ΑΠΟ ΑΥΤΑ ΤΑ ΠΕΡΙΒΑΛΛΟΝΤΑ ΣΥΓΚΡΟΤΕΙΤΑΙ ΑΠΟ ΥΠΟΠΕΡΙΒΑΛΛΟΝΤΑ, ΟΠΩΣ ΕΙΝΑΙ ΤΑ ΥΠΟΠΕΡΙΒΑΛΛΟΝΤΑ "ΠΥΘΜΕΝΑ ΑΥΛΑΚΟΣ ΡΟΗΣ", "ΑΚΡΑΙΟΣ ΦΡΑΓΜΟΣ", "ΠΛΗΜΜΥΡΙΔΑ", ΔΙΑΤΗΡΗΘΕΙΣΑ ΠΟΤΑΜΙΑ ΑΥΛΑΚΑ", "ΠΥΘΜΕΝΑΣ ΛΙΜΝΟΘΑΛΑΣΣΑΣ", "ΘΕΣΗ ΑΠΟΡΡΙΨΗΣ ΥΛΙΚΟΥ ΥΠΕΡΑΝΩ ΦΡΑΓΜΟΥ" ΚΑΙ "ΑΜΜΩΔΗΣ ΠΑΡΑΛΙΑ ΠΟΥ ΑΝΑΠΤΥΣΣΕΤΑΙ ΚΑΤΩ ΑΠΟ ΤΟ ΕΠΙΠΕΔΟ ΤΗΣ ΧΑΜΗΛΗΣ ΠΑΛΙΡΡΟΙΑΣ ΠΟΥ ΞΑΠΛΩΝΕΤΑΙ ΠΡΟΣ ΤΗΝ ΞΗΡΑ". ΜΕ ΒΑΣΗ ΤΑ ΠΑΡΑΠΑΝΩ ΠΕΡΙΒΑΛΛΟΝΤΑ ΚΑΙ ΥΠΟΠΕΡΙΒΑΛΛΟΝΤΑ ΔΙΑΠΙΣΤΩΝΕΤΑΙ ΟΤΙ ΤΑ ΙΖΗΜΑΤΑ ΤΟΥ ΠΗΔΑΣΟΥ ΔΙΝΟΥΝ ΤΗΝ ΕΙΚΟΝΑ ΜΙΑΣ ΕΠΙΚΛΥΣΙΓΕΝΟΥΣ ΙΖΗΜΑΤΟΓΕΝΕΣΗΣ ΠΑΝΩ ΣΕ ΜΙΑ ΓΡΑΜΜΙΚΗ ΚΛΑΣΤΙΚΗ ΑΚΤΗ.
ΜΕΘΟΔΟΣ ΣΥΝΘΕΣΗΣ Η/ΚΑΙ ΕΠΙΛΟΓΗΣ ΑΡΙΣΤΩΝ ΔΙΑΛΥΤΩΝ ΠΡΟΣ ΕΠΙΤΑΧΥΝΣΗ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER
Authors: Στεφανίδης Ιωάννης
Published: August 2021

ΜΕ ΒΑΣΗ ΜΙΑ ΣΧΕΣΗ ΜΕΤΑΞΥ ΤΟΥ ΡΥΘΜΟΥ ΑΝΤΙΔΡΑΣΕΩΝ ΚΑΙ ΣΥΝΤΕΛΕΣΤΩΝ ΕΝΕΡΓΟΤΗΤΑΣ (Γ) ΚΑΙ, ΜΙΑΣ ΜΕΘΟΔΟΥ ΥΠΟΛΟΓΙΣΜΟΥ ΣΥΝΤΕΛΕΣΤΩΝ ΕΝΕΡΓΟΤΗΤΑΣ (ΤΗΣ UNIFAC), ΜΕΛΕΤΗΘΗΚΕ Η ΕΠΙΔΡΑΣΗ ΔΙΑΦΟΡΩΝ ΔΙΑΛΥΤΩΝ ΣΤΟ ΡΥΘΜΟ 2 ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER ΚΑΙ ΕΞΗΧΘΗΣΑΝ ΓΕΝΙΚΑ ΣΥΜΠΕΡΑΣΜΑΤΑ. ΤΑ ΣΥΜΠΕΡΑΣΜΑΤΑ ΑΥΤΑ ΣΤΗ ΣΥΝΕΧΕΙΑ ΤΕΚΜΗΡΙΩΘΗΚΑΝ ΚΑΙ ΓΕΝΙΚΕΥΘΗΚΑΝ ΣΕ 9 ΑΝΤΙΔΡΑΣΕΙΣ DIELS-ALDER ΜΕ ΠΕΙΡΑΜΑΤΙΚΑ ΔΕΔΟΜΕΝΑ ΤΗΣ ΒΙΒΛΙΟΓΡΑΦΙΑΣ. ΤΑ ΣΥΜΠΕΡΑΣΜΑΤΑ ΕΙΝΑΙ: - Ο ΡΥΘΜΟΣ ΤΩΝ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER ΑΥΞΑΝΟΝΤΑΙΟΣΟ ΠΕΡΙΣΣΟΤΕΡΟ ΕΛΑΤΤΩΝΕΤΑΙ Η ΕΠΙΦΑΝΕΙΑ ΚΑΤΑ VAN DER WAALS (AW) ΚΑΙ ΤΑΥΤΟΧΡΟΝΑ ΑΥΞΑΝΕΤΑΙ Ο ΟΓΚΟΣ ΚΑΤΑ VAN DER WAALS (VW) ΤΟΥ ΜΟΡΙΟΥ ΤΟΥ ΔΙΑΛΥΤΗ. - Ο ΡΥΘΜΟΣ ΤΩΝ ΑΝΤΙΔΡΑΣΕΩΝ DIELS-ALDER ΕΠΗΡΕΑΖΕΤΑΙ ΚΥΡΙΩΣ ΑΠΟ ΤΗΝ ΕΠΙΦΑΝΕΙΑ (AW) ΚΑΙ ΟΧΙ ΑΠΟ ΤΟΝ ΟΓΚΟ (VW) ΤΟΥ ΜΟΡΙΟΥ ΤΟΥ ΔΙΑΛΥΤΗ. - ΟΣΟ ΛΟΙΠΟΝ ΠΙΟ ΜΙΚΡΟ ΕΙΝΑΙ ΤΟ ΜΟΡΙΟ ΤΟΥ ΔΙΑΛΥΤΗ ΚΑΙ ΠΙΟ ΣΦΑΙΡΙΚΟ 'Η ΣΥΜΠΑΓΕΣ, ΤΟΣΟ ΠΕΡΙΣΣΟΤΕΡΟ ΑΥΞΑΝΕΤΑΙ Ο ΡΥΘΜΟΣ ΤΩΝ ΑΝΤΙΔΡΑΣΕΩΝ. ΤΑ ΑΝΩΤΕΡΩ ΣΥΜΠΕΡΑΣΜΑΤΑ ΠΕΡΙΓΡΑΦΟΝΤΑΙ ΥΠΟ ΜΟΡΦΗ ΜΑΘΗΜΑΤΙΚΟΥ ΜΟΝΤΕΛΟΥ, ΚΑΙ Η ΦΥΣΙΚΗ ΤΟΥΣ ΕΡΜΗΝΕΙΑ ΤΕΛΟΣ, ΔΙΔΕΤΑΙ ΜΕ ΤΗ ΒΟΗΘΕΙΑ ΜΗΧΑΝΙΣΤΙΚΟΥ ΜΟΝΤΕΛΟΥ.
ΣΥΣΤΗΜΑ ΠΡΩΤΕΙΝΟΣΥΝΘΕΣΗΣ ΕΛΕΥΘΕΡΟ ΚΥΤΤΑΡΩΝ ΑΠΟ ΣΥΚΩΤΙ ΠΟΝΤΙΚΟΥ C3HB
Authors: Γιαννακούρος Θωμάς
Published: August 2021

ΑΝΑΠΤΥΧΘΗΚΕ ΕΝΑ ΣΥΣΤΗΜΑ ΠΡΩΤΕΙΝΟΣΥΝΘΕΣΗΣ ΕΛΕΥΘΕΡΟ ΚΥΤΤΑΡΩΝ ΑΠΟ ΣΥΚΩΤΙ ΠΟΝΤΙΚΩΝC3HB, ΜΕ ΚΥΡΙΟ ΧΑΡΑΚΤΗΡΙΣΤΙΚΟ ΤΗΝ ΥΨΗΛΗ ΕΝΔΟΓΕΝΗ ΔΡΑΣΗ. ΑΠΟ ΑΥΤΟΡΑΔΙΟΓΡΑΦΙΑ ΠΡΟΚΥΠΤΕΙ ΟΤΙ, ΜΕ ΤΟ ΕΝΔΟΓΕΝΕΣ MRNA, ΣΥΝΘΕΤΕΤΑΙ ΕΝΑΣ ΜΕΓΑΛΟΣ ΑΡΙΘΜΟΣ ΠΡΟΙΟΝΤΩΝ ΜΕ Μ.Β. ΜΕΓΑΛΥΤΕΡΑ ΤΩΝ 100.000 ΕΩΣ 10.000. ΟΡΙΣΜΕΝΑ ΑΠΟ ΑΥΤΑ ΕΜΦΑΝΙΖΟΝΑΙ ΠΡΩΙΜΑ ΣΤΗ ΚΑΜΠΥΛΗ ΧΡΟΝΟΥ ΕΝΩ ΑΛΛΩΝ Η ΕΜΦΑΝΙΣΗ ΚΑΘΥΣΤΕΡΕΙ. ΠΡΟΣΘΗΚΗ ΚΥΚΛΟΕΞΙΜΙΔΙΟΥ ΔΙΝΕΙ 80% ΑΝΑΣΤΟΛΗ. ΟΙ ΠΡΩΤΕΙΝΕΣ ΠΟΥ ΑΝΑΣΤΕΛΛΟΝΤΑΙ ΚΥΡΙΩΣ ΕΙΝΑΙ ΕΚΕΙΝΕΣ ΠΟΥ ΚΑΘΥΣΤΕΡΟΥΝ ΣΤΗΝ ΚΑΜΠΥΛΗ ΧΡΟΝΟΥ. ΠΡΟΣΘΗΚΗ ΣΠΕΡΜΙΔΙΝΗΣ ΣΕ ΣΥΓΚΕΝΤΡΩΣΕΙΣ 100-500 ΜΜ ΠΡΟΚΑΛΕΙ ΕΝΕΡΓΟΠΟΙΗΣΗ ΕΝΩ ΣΕ ΜΕΓΑΛΥΤΕΡΕΣ ΣΥΓΚΕΝΤΡΩΣΕΙΣ ΠΡΟΚΑΛΕΙ ΑΝΑΣΤΟΛΗ. ΗΣΠΕΡΜΙΝΗ ΠΡΟΚΑΛΕΙ ΜΕΓΑΛΗ ΑΝΑΣΤΟΛΗ. ΠΑΡΟΥΣΙΑ ΤΩΝ ΑΝΑΣΤΑΛΤΙΚΩΝ ΣΥΓΚΕΝΤΡΩΣΕΩΝ ΤΗΣ ΣΠΕΡΜΙΔΙΝΗΣ ΔΥΟ ΠΡΩΤΕΙΝΕΣ ΜΕ Μ.Β 14,5 ΚΑΙ 15,5 KD ΦΑΙΝΕΤΑΙ ΝΑ ΙΣΧΥΡΟΠΟΙΟΥΝΤΑΙ. ΤΟ ΣΥΣΤΗΜΑ ΕΧΕΙ ΤΗΝ ΙΚΑΝΟΤΗΤΑ ΝΑ ΜΕΤΑΦΡΑΖΕΙ ΕΞΩΓΕΝΗ MRNA (MRNA ΣΦΑΙΡΙΝΗΣ, TMV RNA) ΕΙΤΕ ΜΕΤΑ ΑΠΟ ΚΑΤΕΡΓΑΣΙΑ ΜΕ ΜΙΚΡΟΚΟΚΚΙΚΗ ΝΟΥΚΛΕΑΣΗ ΕΙΤΕ ΜΕΤΑ ΑΠΟ ΠΡΟΕΠΩΑΣΗ ΓΙΑ ΤΗΝ ΕΞΑΝΤΛΗΣΗ ΤΟΥ ΕΝΔΟΓΕΝΟΥΣ MRNA. ΣΤΗ ΔΕΥΤΕΡΗ ΠΕΡΙΠΤΩΣΗ ΑΠΑΡΑΙΤΗΤΗ ΕΙΝΑΙ Η ΠΡΟΣΘΗΚΗ ΠΑΡΑΓΟΝΤΩΝ ΕΝΑΡΞΗΣ. ΜΑΖΙ ΜΕ ΤΟΥΣ ΠΑΡΑΓΟΝΤΕΣ ΕΝΑΡΞΗΣ ΕΚΧΥΛΙΖΕΤΑΙ ΚΑΙ ΕΝΑΣ ΑΝΑΣΤΟΛΕΑΣ, ΠΟΥ ΜΕΤΑ ΑΠΟ ΚΑΘΑΡΙΣΜΟ ΣΕ DEAE-BIOGEL A, SEPHADEX G-50, ΚΑΙ BIOGEL P2 ΔΙΑΠΙΣΤΩΘΗΚΕ ΟΤΙ ΠΡΟΚΕΙΤΑΙ ΓΙΑ ΜΙΚΡΑ ΠΟΣΑ ΑΜΙΝΟΞΕΩΝ ΠΟΥ ΑΠΛΩΣ ΑΡΑΙΩΝΟΥΝ ΤΟ ΑΝΤΙΣΤΟΙΧΟ ΡΑΔΙΕΝΕΡΓΟ ΑΜΙΝΟΞΥ.
ΑΣΘΕΝΩΣ ΕΞΗΡΤΗΜΕΝΕΣ ΤΥΧΑΙΕΣ ΜΕΤΑΒΛΗΤΕΣ ΚΑΙ ΜΗ ΠΑΡΑΜΕΤΡΙΚΗ ΕΚΤΙΜΗΣΗ ΠΥΚΝΟΤΗΤΑΣ ΠΙΘΑΝΟΤΗΤΑΣ
Authors: Ιωαννίδης Δημήτριος
Published: August 2021

ΔΙΝΟΝΤΑΙ ΟΙ ΟΡΙΣΜΟΙ ΕΞΗΡΤΗΜΕΝΩΝ ΤΥΧΑΙΩΝ ΜΕΤΑΒΛΗΤΩΝ, ΚΑΙ ΠΑΡΟΥΣΙΑΖΟΝΤΑΙ ΓΝΩΣΤΑ ΚΑΙ ΝΕΑ ΑΠΟΤΕΛΕΣΜΑΤΑ ΠΟΥ ΑΦΟΡΟΥΝ ΑΥΤΑ ΤΑ ΕΙΔΗ ΤΥΧΑΙΩΝ ΜΕΤΑΒΛΗΤΩΝ, ΠΡΟΣΑΡΜΟΣΜΕΝΑ ΣΤΙΣ ΣΤΑΤΙΣΤΙΚΕΣ ΕΦΑΡΜΟΓΕΣ . ΕΠΙΤΥΓΧΑΝΟΝΤΑΙ ΕΚΘΕΤΙΚΑ ΑΝΩ ΦΡΑΓΜΑΤΑ ΠΙΘΑΝΟΤΗΤΑΣ ΓΙΑ ΑΘΡΟΙΣΜΑΤΑ ΤΥΧΑΙΩΝ ΜΕΤΑΒΛΗΤΩΝ ΤΡΙΓΩΝΙΚΗΣ ΔΙΑΤΑΞΗΣ ΩΣ ΕΠΙΣΗΣ ΚΑΙ ΦΡΑΓΜΑΤΑ ΡΟΠΩΝ ΑΘΡΟΙΣΜΑΤΩΝ ΤΥΧΑΙΩΝ ΜΕΤΑΒΛΗΤΩΝ ΤΡΙΓΩΝΙΚΗΣ ΔΙΑΤΑΞΗΣ. ΤΕΛΟΣ, ΜΕΛΕΤΑΤΑΙ Η ΟΜΟΙΟΜΟΡΦΗ ΙΣΧΥΡΗ ΣΥΝΕΠΕΙΑ ΕΚΤΙΜΗΤΩΝ ΤΗΣ ΠΥΚΝΟΤΗΤΑΣ ΠΙΘΑΝΟΤΗΤΑΣ ΣΕ ΣΥΜΠΑΓΗ ΥΠΟΣΥΝΟΛΑΤΟΥ IR+, T=1,2,..., ΚΑΙ Σ'ΟΛΟΚΛΗΡΟ ΤΟΝ IR+, ΜΕ ΤΥΧΑΙΟ ΔΕΙΓΜΑ ΠΟΥ ΠΡΟΕΡΧΕΤΑΙ ΑΠΟ ΤΙΣ ΑΣΘΕΝΩΣ ΕΞΗΡΤΗΜΕΝΕΣ ΤΥΧΑΙΕΣ ΜΕΤΑΒΛΗΤΕΣ.
ΜΕΛΕΤΗ ΤΗΣ ΜΙΚΡΟΒΙΑΚΗΣ ΧΛΩΡΙΔΑΣ ΣΤΗ ΟΞΕΙΑ ΠΕΡΙΑΚΡΟΡΡΙΖΙΚΗ ΦΛΕΓΜΟΝΗ
Authors: Αμπουταχούν Ιμπραήμ
Published: August 2021

ΣΚΟΠΟΣ ΤΗΣ ΕΡΓΑΣΙΑΣ ΑΥΤΗΣ ΗΤΑΝ Η ΜΕΛΕΤΗ ΤΗΣ ΜΙΚΡΟΒΙΑΚΗΣ ΧΛΩΡΙΔΑΣ ΤΩΝ Ρ16 ΣΤΗΝ ΟΞΕΙΑ ΠΕΡΙΑΚΡΟΡΡΙΖΙΚΗ ΦΛΕΓΜΟΝΗ ΚΑΙ ΤΗΝ ΣΥΣΧΕΤΙΣΗ ΤΗΣ ΜΕ ΤΗΝ ΟΞΕΙΑ ΣΥΜΠΤΩΜΑΤΟΛΟΓΙΑ. ΧΡΗΣΙΜΟΠΟΙΗΘΗΚΑΝ ΥΛΙΚΑ ΚΑΙ ΜΕΘΟΔΟΙ ΠΟΥ ΕΠΙΤΡΕΠΟΥΝ ΤΗΝ ΑΜΕΣΗ ΑΝΑΠΤΥΞΗ ΑΝΑΕΡΟΒΙΩΝ ΚΑΙ ΑΕΡΟΒΙΩΝ ΜΑΚΡΟΒΙΩΝ. ΓΕΝΙΚΑ ΤΑ ΑΠΟΤΕΛΕΣΜΑΤΑ ΤΗΣ ΕΡΕΥΝΑΣ ΑΥΤΗΣ ΕΔΕΙΞΑΝ ΟΤΙ Η ΜΙΚΡΟΒΙΑΚΗ ΧΛΩΡΙΔΑ ΤΩΝ Ρ16 ΣΤΗΝ ΟΞΕΙΑ ΠΕΡΙΑΚΡΟΡΡΙΖΙΚΗ ΦΛΕΓΜΟΝΗ ΕΙΝΑΙ ΜΙΚΤΗ ΣΤΗΝ ΟΠΟΙΑ ΠΡΟΕΞΑΡΧΟΥΝ ΤΑ ΑΝΑΕΡΟΒΙΑ. ΕΠΙΣΗΣ ΑΠΟΔΕΙΧΘΗΚΕ ΘΕΤΙΚΗ ΣΧΕΣΗ ΜΕΤΑΞΥ ΤΗΣΠΑΡΟΥΣΙΑΣ ΑΝΑΕΡΟΒΙΑΣ ΧΛΩΡΙΔΑΣ ΚΑΙ ΤΟΝ ΕΝΤΟΝΟ ΣΤΟΧΟ, ΤΟ ΕΚΤΕΤΑΜΕΝΟ ΟΙΔΗΜΑ, ΤΟΥ ΒΑΡΕΙΑ ΚΛΙΝΙΚΩΣ ΠΥΘΜΕΝΑ, ΤΟ ΑΦΘΟΝΟ ΕΞΙΔΡΑΜΑ ΚΑΙ ΤΗΝ ΥΠΑΡΞΗ ΔΙΝΟΓΑΣΤΙΚΗΣ ΠΕΡΙΑΚΡΟΡΡΙΖΙΚΗΣ ΠΕΡΙΟΧΗΣ ΕΝΩ ΔΕΝ ΑΠΟΔΕΙΧΘΗΚΕ ΚΑΜΙΑ ΣΧΕΣΗ ΜΕΤΑΞΥ ΤΗΣ ΠΑΡΟΥΣΙΑΣ ΤΟΥ ΣΥΡΙΓΓΙΟΥ ΚΑΙ ΤΟ ΕΙΔΟΣ ΤΗΣ ΜΙΚΡΟΒΙΑΚΗΣ ΧΛΩΡΙΔΑΣ . ΣΕ 7 ΑΠΟ ΤΙΣ 12 ΠΕΡΙΠΤΩΣΕΙΣ ΜΕ ΒΑΡΕΙΑ ΚΛΙΝΙΚΗ ΕΙΚΟΝΑ ΑΠΟΜΟΝΩΘΗΚΕ B. MELANINOGLOMIUS.
Η ΟΥΡΟΛΟΓΙΑ ΣΤΗΝ ΕΛΛΑΔΑ ΑΠΟ ΤΟΝ ΙΠΠΟΚΡΑΤΗ ΜΕΧΡΙ ΣΗΜΕΡΑ
Authors: Ντέρος Κωνσταντίνος
Published: August 2021

Η ΠΑΡΟΥΣΑ ΕΡΓΑΣΙΑ ΑΣΧΟΛΕΙΤΑΙ ΜΕ ΤΗΝ ΟΥΡΟΛΟΓΙΑ ΑΠΟ ΤΗΝ ΕΠΟΧΗ ΤΟΥ ΙΠΠΟΚΡΑΤΗ ΜΕΧΡΙΣΗΜΕΡΑ. ΑΠΟ ΤΑ ΕΡΓΑ ΤΩΝ ΑΡΧΑΙΩΝ ΓΙΑΤΡΩΝ ΒΡΕΘΗΚΑΝ ΚΑΙ ΚΑΤΑΓΡΑΦΗΚΑΝ ΤΑ ΚΟΜΜΑΤΙΑ ΠΟΥ ΑΦΟΡΟΥΝ ΤΙΣ ΟΥΡΟΛΟΓΙΚΕΣ ΠΑΘΗΣΕΙΣ . ΠΑΡΟΥΣΙΑΖΕΙ ΤΗΝ ΕΞΕΛΙΞΗ ΠΟΥ ΣΗΜΕΙΩΝΕΤΑΙ ΔΙΑ ΜΕΣΟΥ ΤΩΝ ΑΙΩΝΩΝ ΣΤΗΝ ΟΥΡΟΛΟΓΙΑ ΚΥΡΙΑ ΜΕΧΡΙ ΤΟΝ 7 Μ.Χ. ΑΙΩΝΑ. ΣΤΗ ΣΥΝΕΧΕΙΑ ΠΑΡΑΤΗΡΕΙΤΑΙ ΣΤΑΣΙΜΟΤΗΣ ΧΑΡΑΚΤΗΡΙΣΤΙΚΗ ΓΙΑ ΟΛΟΥΣ ΤΟΥΣ ΚΛΑΔΟΥΣ ΤΗΣ ΙΑΤΡΙΚΗΣ (ΜΕΣΑΙΩΝΑΣ) ΕΙΝΑΙ Η ΕΠΟΧΗ ΤΗΣ ΟΥΡΟΣΚΟΠΙΑΣ ΚΑΙ Η ΧΡΗΣΙΜΟΠΟΙΗΣΗ ΤΗΣ ΓΝΩΣΗΣ ΤΩΝ ΑΡΧΑΙΩΝ ΓΙΑΤΡΩΝ. ΜΕΤΑ ΤΟ 1850 ΤΑ ΠΡΑΓΜΑΤΑ ΑΛΛΑΖΟΥΝ Η ΜΙΚΡΟΒΙΑΚΗ ΘΕΩΡΙΑ ΤΟΥ PASTEUR, ΗΑΝΤΙΣΗΨΙΑ ΤΟΥ LISTER. Η ΑΝΑΚΑΛΥΨΗ ΤΗΣ ΑΝΑΙΣΘΗΣΙΑΣ ΚΑΙ Η ΠΡΟΟΔΟΣ ΤΩΝ ΧΕΙΡΟΥΡΓΙΚΩΝ ΜΕΘΟΔΩΝ ΔΙΝΕΙ ΝΕΑ ΩΘΗΣΗ ΚΙ ΑΛΛΗ ΚΑΤΕΥΘΥΝΣΗ Σ'ΟΛΟΚΛΗΡΗ ΤΗΝ ΙΑΤΡΙΚΗ ΕΠΙΣΤΗΜΗ ΟΠΩΣ ΕΙΝΑΙ ΦΥΣΙΚΟ ΜΕ ΤΟΝ ΔΙΑΧΩΡΙΣΜΟ ΤΗΣ ΙΑΤΡΙΚΗΣ ΣΕ ΕΙΔΙΚΟΤΗΤΕΣ ΔΕΝ ΑΡΓΕΙ ΝΑ ΦΑΝΕΙ ΚΑΙ Η ΕΙΔΙΚΟΤΗΤΑ ΤΗΣ ΟΥΡΟΛΟΓΙΑΣ ΜΕ ΠΡΩΤΟ ΤΑΚΤΙΚΟ ΚΑΘΗΓΗΤΗ ΤΟΝ ΒΑΡΘΟΛΟΜΑΙΟ ΓΚΥΖΗ. ΣΤΗ ΣΥΝΕΧΕΙΑ ΤΗΝ ΙΔΡΥΣΗ ΟΥΡΟΛΟΓΙΚΩΝ ΚΛΙΝΙΚΩΝ Σ'ΟΛΑ ΤΑ ΝΟΣΟΚΟΜΕΙΑ ΚΑΙ Η ΡΑΓΔΑΙΑ ΕΞΕΛΙΞΗ ΜΕ ΤΟΝ Β' ΠΑΓΚΟΣΜΙΟ ΠΟΛΕΜΟ. ΣΗΜΑΝΤΙΚΟ ΕΙΝΑΙ ΑΚΟΜΑ ΝΑ ΑΝΑΦΕΡΘΕΙ Η ΔΙΑΠΙΣΤΩΣΗ ΟΤΙ ΟΙ ΕΝΝΟΙΕΣ ΚΑΙ ΟΙ ΟΡΟΙ ΤΗΣ ΑΡΧΑΙΑΣ ΙΑΤΡΙΚΗΣ ΔΙΑΤΗΡΟΥΝΤΑΙ ΑΚΟΜΑ ΚΑΙ ΣΤΟΝ ΑΙΩΝΑ ΜΑΣ.
ΓΕΩΦΥΣΙΚΕΣ ΕΡΕΥΝΕΣ ΣΤΗΝ ΠΕΡΙΟΧΗ ΤΗΣ ΛΕΚΑΝΗΣ ΜΕΓΑΛΟΠΟΛΗΣ
Authors: Παπαδόπουλος Ταξιάρχης
Published: August 2021

ΔΙΕΡΕΥΝΗΣΗ ΤΟΥ ΥΠΕΔΑΦΟΥΣ ΤΗΣ ΛΕΚΑΝΗΣ ΜΕΓΑΛΟΠΟΛΗΣ ΑΡΚΑΔΙΑΣ, ΜΕ ΤΗΝ ΕΦΑΡΜΟΓΗ ΣΤΟ ΥΠΑΙΘΡΟ ΚΑΙ ΕΡΜΗΝΕΙΑ ΜΕΘΟΔΩΝ ΕΦΑΡΜΟΣΜΕΝΗΣ ΓΕΩΦΥΣΙΚΗΣ. ΣΥΓΚΕΚΡΙΜΕΝΑ ΕΚΤΕΛΕΣΤΗΚΑΝΣΕΙΣΜΟΛΟΓΙΚΕΣ, ΒΑΡΥΤΙΚΕΣ, ΓΕΩΗΛΕΚΤΡΙΚΕΣ, ΚΑΙ ΜΑΓΝΗΤΙΚΕΣ ΜΕΤΡΗΣΕΙΣ. ΑΠΟ ΤΗΝ ΑΝΑΛΥΣΗ ΚΑΙ ΤΗ ΜΕΛΕΤΗ ΤΩΝ ΣΥΓΚΕΝΤΡΩΘΕΝΤΩΝ ΣΤΟΙΧΕΙΩΝ ΚΑΤΑΣΚΕΥΑΣΤΗΚΕ ΚΑΤ'ΑΡΧΗΝ ΧΑΡΤΗΣ ΙΣΟΒΑΘΩΝ ΚΑΜΠΥΛΩΝ ΤΟΥ ΑΛΠΙΚΟΥ ΥΠΟΒΑΘΡΟΥ ΓΙΑ ΤΗΝ ΠΕΡΙΟΧΗ ΕΡΕΥΝΑΣ ΚΑΙ ΚΑΤΑ ΔΕΥΤΕΡΟ ΛΟΓΟ ΠΡΟΕΚΥΨΑΝ ΣΥΜΠΕΡΑΣΜΑΤΑ ΟΣΟΝ ΑΦΟΡΑ ΤΗΝ ΤΕΚΤΟΝΙΚΗ ΔΟΜΗ ΤΟΥ ΕΣΩΤΕΡΙΚΟΥ ΤΗΣ ΛΕΚΑΝΗΣ ΚΑΙ ΤΗΣ ΣΕΙΣΜΙΚΗΣ ΣΥΜΠΕΡΙΦΟΡΑΣ, ΑΥΤΗΣ ΣΤΟ ΣΥΝΟΛΟ ΤΗΣ.