bluuebunny/crossref_metadata_2025 huggingface dataset:
Quantum gravity momentum representation and maximum energy
Authors: Moffat J. W.
Published: October 2015

We use the idea of the symmetry between the spacetime coordinates [Formula: see text] and the energy–momentum [Formula: see text] in quantum theory to construct a momentum space quantum gravity geometry with a metric [Formula: see text] and a curvature tensor [Formula: see text]. For a closed maximally symmetric momentum space with a constant 3-curvature, the volume of the [Formula: see text]-space admits a cutoff with an invariant maximum momentum [Formula: see text]. A Wheeler–DeWitt-type wave equation is obtained in the momentum space representation. The vacuum energy density and the self-energy of a charged particle are shown to be finite, and modifications of the electromagnetic radiation density and the entropy density of a system of particles occur for high frequencies.
New Families of Complex Hadamard Matrices
Authors: Havinga Maarten
Published: October 2015

The main result of this paper is a construction for complex Hadamard matrices: for [Formula: see text] any prime power and [Formula: see text] the size of a real Hadamard matrix, this construction yields a family of complex Hadamard matrices of order [Formula: see text] with [Formula: see text] parameters, including Butson-type matrices of even type [Formula: see text] a divisor of [Formula: see text]. Only a few lowdimensional examples and the real Hadamard matrices obtained by this construction are already known. Also a small extension of Diţa’s construction (cf. Lemma 1) is given.
Effects of preferred orientation and crystal size on thermoelectric properties of sodium cobalt oxide
Authors: Wu Yin , Wang Jun , Yaer Xinba , Miao Lei , Zhang Boyu , Guo Feng , Zhang Shuai
Published: October 2015

To examine the effect of crystal size and orientation effect on ZT, polycrystalline NaxCo2O4 materials were prepared by pressing layered crystals obtained in sol–gel (SG) synthesis, molten salt synthesis (MSS) with and without additional ball milling (BM) treatment and 1:1 molar ratio mixture (Mixture) of BM powder and MSS powders. We found that the orientation effect and crystal size for four samples follow Mixture < SG < BM < MSS and BM < Mixture < SG < MSS, respectively. Electrical conductivity was obviously enhanced in the highly orientated BM and MSS samples when compared with SG and Mixture. It appears that the crystal size plays a dominant role in thermal conductivity rather than Seebeck coefficient by controlling the phonon scattering at grain boundaries. Thermal conductivity for BM was significantly decreased in comparison to MSS, although both BM and MSS show comparable orientation effect. The maximum ZT value is developed to near 0.51 at 814[Formula: see text]K upon increasing the electrical resistivity and decreasing the thermal conductivity, which are mainly governed by the condition of crystal size and orientation effect.
Femtosecond Magnetism When the Orbital Angular Momentum is Quenched
Authors: Si M. S. , Yang D. Z. , Xue D. S. , Zhang G. P.
Published: October 2015

In femtosecond magnetism, a femtosecond laser pulse affects the spin moment only indirectly through the orbital angular momentum and the spin–orbit coupling. A long-standing puzzle is what happens if the orbital angular momentum itself is quenched. Here, we employ a four-level system to resolve this puzzle. The results show that the quenching of the orbital angular moment in the ground state has no direct relation to the spin moment change. By contrast, the orbital moment can be restored partially after the pulsed optical excitation and can affect the demagnetization. Importantly, this study confirms that the orbital moment indeed responds to the laser field faster than spin if the pulse duration is short, consistent with the recent time-resolved X-ray magnetic circular dichroism experiment. Therefore, our finding shines new light on femtosecond magnetism.
Algorithm 951
Authors: Wang Menghan , Sitharam Meera
Published: October 2015

For a common class of two-dimensional (2D) mechanisms called
1-dof tree-decomposable linkages
, we present a software package, CayMos, which uses new theoretical results from Sitharam and Wang [2014] and Sitharam et al. [2011a, 2011b] to implement efficient algorithmic solutions for (a) meaningfully representing and visualizing the connected components in the Euclidean realization space; (b) finding a path of continuous motion between two realizations in the same connected component, with or without restricting the
realization type
(sometimes called orientation type); and (c) finding two “closest” realizations in different connected components.
Algorithm 952
Authors: Dong Bohan , Farouki Rida T.
Published: October 2015

The implementation of a library of basic functions for the construction and analysis of planar quintic Pythagorean-hodograph (PH) curves is presented using the complex representation. The special algebraic structure of PH curves permits exact algorithms for the computation of key properties, such as arc length, elastic bending energy, and offset (parallel) curves. Single planar PH quintic segments are constructed as interpolants to first-order Hermite data (end points and derivatives), and this construction is then extended to open or closed
C
2
PH quintic spline curves interpolating a sequence of points in the plane. The nonlinear nature of PH curves incurs a multiplicity of formal solutions to such interpolation problems, and a key aspect of the algorithms is to efficiently single out the unique “good” interpolant among them.
Leclercia adecarboxylataMusculoskeletal Infection in an Immune Competent Pediatric Patient: An Emerging Pathogen?
Authors: Grantham W. Jeffrey , Funk Shawn S. , Schoenecker Jonathan G.
Published: October 2015

Case. An immune competent pediatric patient presented with a persistent lower extremity infection withLeclercia adecarboxylataafter a penetrating injury. This case report details the presentation, clinical course, and treatment.Conclusion.Leclercia adecarboxylatahas increasing reports in immunosuppressed and adult patients with musculoskeletal infection. This case now indicates thatLeclercia adecarboxylatais a potential pathogen in immune competent children in musculoskeletal tissue.
Acute Cyanide Poisoning: Hydroxocobalamin and Sodium Thiosulfate Treatments with Two Outcomes following One Exposure Event
Authors: Meillier Andrew , Heller Cara
Published: October 2015

Cyanide is rapidly reacting and causes arrest of aerobic metabolism. The symptoms are diffuse and lethal and require high clinical suspicion. Remediation of symptoms and mortality is highly dependent on quick treatment with a cyanide antidote. Presently, there are two widely accepted antidotes: sodium thiosulfate and hydroxocobalamin. These treatments act on different components of cyanide’s metabolism. Here, we present two cases resulting from the same source of cyanide poisoning and the use of both antidotes separately used with differing outcomes.
Evaluating the Efficacy of Treatment with a GnRH Analogue in Patients with Central Precocious Puberty
Authors: Kendirci H. Nur Peltek , Ağladıoğlu Sebahat Yılmaz , Baş Veysel N. , Önder Aşan , Çetinkaya Semra , Aycan Zehra
Published: October 2015

Objective.GnRH analogues (GnRHa) are used in the treatment of central precocious puberty (CPP). The purpose of this study was to evaluate the efficacy of treatment with a GnRHa (leuprolide acetate) in patients with CPP.Subjects and Methods.A total of 62 female child patients who had been diagnosed with CPP, rapidly progressive precocious puberty (RP-PP), or advanced puberty (AP) and started on GnRHa treatment (leuprolide acetate, Lucrin depot, 3.75 mg once every 28 days) were included in the study. The efficacy of treatment was evaluated with anthropometric data obtained, progression of pubertal symptoms observed, as well as GnRHa tests, and, when necessary, intravenous GnRH tests carried out in physical examinations that were performed once every 3 months.Results.In the current study, treatment of early/advanced puberty at a dose of 3.75 mg once every 28 days resulted in the suppression of the HHG axis in 85.5% of the patients.Conclusion.The findings of this study revealed that a high starting dose of leuprolide acetate may not be necessary in every patient for the treatment of CPP. Starting at a dose of 3.75 mg once every 28 days and increasing it with regard to findings in follow-ups would be a better approach.
Theory of Variable Fuzzy Sets for Artificial Emotions Prediction
Authors: Fan Kuo-Kuang , Deng Shuh-Yeuan , Su Chung-Ho , Cheng Fu-Yuan
Published: October 2015

Emotions have a very important impact on human’s beliefs, motivations, actions, and physical states. Emotions predicting and its application in intelligent system can improve the interaction between humans and machines. Current research in artificial emotion focuses on how to measure, calculate, or compute it. However, the transfer of emotion is often too complicated to present full emotion states and changes. This paper combines with emotional dimension and theory of variable fuzzy sets to present a predicting artificial emotion model and shows illustrated example of it. This study shows that any raw data from input can be computed with variable fuzzy set. It provides a mathematical method for representing emotion quantitative, gradual qualitative, and mutated qualitative change. This framework improves calculation methods and mechanisms, closer to real emotional changes.
Rivaroxaban-Induced Nontraumatic Spinal Subdural Hematoma: An Uncommon Yet Life-Threatening Complication
Authors: Zaarour Mazen , Hassan Samer , Thumallapally Nishitha , Dai Qun
Published: October 2015

In the last decade, the desire for safer oral anticoagulants (OACs) led to the emergence of newer drugs. Available clinical trials demonstrated a lower risk of OACs-associated life-threatening bleeding events, including intracranial hemorrhage, compared to warfarin. Nontraumatic spinal hematoma is an uncommon yet life-threatening neurosurgical emergency that can be associated with the use of these agents. Rivaroxaban, one of the newly approved OACs, is a direct factor Xa inhibitor. To the best of our knowledge, to date, only two published cases report the incidence of rivaroxaban-induced nontraumatic spinal subdural hematoma (SSDH). Our case is the third one described and the first one to involve the cervicothoracic spine.
Perceptions of Nigerian Women about Human Papilloma Virus, Cervical Cancer, and HPV Vaccine
Authors: Akanbi Olusola Anuoluwapo , Iyanda Abiodun , Osundare Folakemi , Opaleye Oluyinka Oladele
Published: October 2015

Background. Cervical cancer caused by human papilloma virus (HPV) though preventable has claimed the lives of many women worldwide. This study was embarked upon to evaluate the general knowledge and perceptions of Nigerian women on HPV, cervical cancer, and HPV vaccine.Methods. Structured questionnaires were administered to a cross section of 737 women randomly selected from the general population in two southwestern States of Nigeria. Statistical analysis was done using SPSS computer software version 16. APvalue >0.05 was considered statistically significant.Results. One hundred and seventy-six (23.9%) of the respondents had knowledge of HPV; 474 (64.3%) are aware of cervical cancer but only 136 (18.5%) know that HPV causes cervical cancer. 200 (27.1%) are aware that there is an HPV vaccine while 300 (40.7%) had knowledge of Pap smear test. Two hundred and sixty (35.3%) of the respondents know that early detection of HPV can prevent cervical cancer and in spite of this, only 110 (14.9%) have taken the Pap smear test before while 151 (20.5%) are not willing to go for the test at all.Conclusions. There is therefore the need to create proper awareness on the HPV and its possible consequence of cervical carcinoma.
Research on Cooperation Strategy of Enterprises’ Quality and Safety in Food Supply Chain
Authors: Wang Jining , Chen Tingqiang , Wang Junyong
Published: October 2015

In order to prevent and control risk factors which harm the quality and safety of the food supply chain effectively and reduce the probability of food safety incidents, this paper investigated on some problems of the upstream and downstream enterprises of the food supply chain under the three different forms of cooperation based on the neoclassic economics and game theory method. These problems include the effectiveness of the quality and safety efforts, the profits, the effect of the losses that the food safety incidents caused on the quality efforts’ efficacy, and the social welfare comparison. Meanwhile, we constructed evolutionary game model to analyze the macro and micro factors that influenced the cooperation strategy and demonstrated the effect of diversity of decision-making parameters on evolution results based on numerical simulation. By the theoretical and simulation analysis, we found that (1) the quality efforts’ efficacy, the profits, the sensitivity coefficient of the quality efforts efficiency to the losses, and the social welfare without thinking about the externality all met their maximum under the full cooperation situation; (2) strengthening supervision over the source of the food supply chain can reduce the probability of food safety incidents; (3) macro and micro environment will be the important basis for companies’ decision-making on cooperation strategy in the food supply chain.
Magnetic Moments of 70-Plet Baryons in Quark Model and QCD Sum Rules
Authors: Aliev T. M. , Zamiralov V. S.
Published: October 2015

Magnetic moments of the positive parity 70-plet baryons are estimated in the framework of the nonrelativistic quark model and QCD sum rules method. It is found that the magnetic moments of the 70-plet baryons can be expressed in terms of theFandDcouplings and exhibit unitary symmetry. The QCD sum rules for the magnetic moments of the 70-plet octet baryons are formulated. A comparison of our results on magnetic moments of 56-plet and 70-plet baryons predicted from QCD sum rules is presented.
An Adapted Wayfinding System for Pedestrians with Cognitive Disabilities
Authors: Gomez Javier , Montoro Germán , Torrado Juan Carlos , Plaza Adalberto
Published: October 2015

This paper presents a novel wayfinding system adapted to people with cognitive disabilities. It adapts to the user in terms of route calculation, instructions delivery, and interface design. To do so, the system divides the calculated route into atomic instructions and uses street-level photographs at the decision points. To evaluate this approach, we compared it with a commercial navigation application on a field trial with a sample of users (N= 18). From the evaluation, we concluded that our system improves users’ performance in terms of the number who reached the destination and were able to identify it correctly.
Protective Effect of Intravenous High Molecular Weight Polyethylene Glycol on Fatty Liver Preservation
Authors: Bejaoui Mohamed , Pantazi Eirini , Folch-Puy Emma , Panisello Arnau , Calvo María , Pasut Gianfranco , Rimola Antoni , Navasa Miquel , Adam René , Roselló-Catafau Joan
Published: October 2015

Ischemia reperfusion injury (IRI) leads to significant tissue damage in liver surgery. Polyethylene glycols (PEGs) are water soluble nontoxic polymers that have proved their effectiveness against IRI. The objective of our study was to investigate the potential protective effects of intravenous administration of a high molecular weight PEG of 35 kDa (PEG 35) in steatotic livers subjected to cold ischemia reperfusion. In this study, we used isolated perfused rat liver model to assess the effects of PEG 35 intravenous administration after prolonged cold ischemia (24 h, 4°C) and after reperfusion (2 h, 37°C). Liver injury was measured by transaminases levels and mitochondrial damage was determined by confocal microscopy assessing mitochondrial polarization (after cold storage) and by measuring glutamate dehydrogenase activity (after reperfusion). Also, cell signaling pathways involved in the physiopathology of IRI were assessed by western blot technique. Our results show that intravenous administration of PEG 35 at 10 mg/kg ameliorated liver injury and protected the mitochondria. Moreover, PEG 35 administration induced a significant phosphorylation of prosurvival protein kinase B (Akt) and activation of cytoprotective factors e-NOS and AMPK. In conclusion, intravenous PEG 35 efficiently protects steatotic livers exposed to cold IRI.
Is It Safe to Restart Antivascular Endothelial Growth Factor Therapy in Patients with Renal Cell Carcinoma after Cardiac Ischemia?
Authors: Zhao Bo , Wood Laura S. , James Karen , Rini Brian I.
Published: October 2015

Agents targeting vascular endothelial growth factor (VEGF) represent active drugs in treating patients with advanced renal cell carcinoma (RCC). Studies have shown that sunitinib and axitinib can be associated with cardiac toxicity. Whether these agents should be restarted in patients who experience cardiac ischemia remains uncertain. Here, we present three patients with metastatic RCC who restarted sunitinib or axitinib after intervention of active ischemic cardiac disease without causing subsequent relevant cardiac events. This experience suggests that these agents can be continued after management of cardiac ischemia.
Effects of a High-Protein/Low-Carbohydrate Diet versus a Standard Hypocaloric Diet on Weight and Cardiovascular Risk Factors: Role of a Genetic Variation in the rs9939609 FTO Gene Variant
Authors: de Luis Daniel Antonio , Aller Rocío , Izaola Olatz , Primo David , Urdiales Silvia , Romero Enrique
Published: October 2015

Background and Aims: The common polymorphism rs9939609 of the fat mass- and obesity-associated gene (FTO) has been linked to obesity. Our aim was to investigate its role in weight loss after the administration of a high-protein/low-carbohydrate diet compared to a standard hypocaloric diet (1,000 kcal/day). Methods: During 9 months, 195 patients were randomly allocated to a high-protein hypocaloric diet (HP diet) and a standard hypocaloric diet (S diet). Results: With the HP diet, BMI (-1.9 ± 1.2 vs. -2.10 ± 1.8; p < 0.05), weight (-6.5 ± 2.1 vs. -10.1 ± 4.1 kg; p < 0.05), fat mass (-3.9 ± 3.2 vs. -6.0 ± 3.4 kg; p < 0.05) and waist circumference (-5.7 ± 5.0 vs. -9.9 ± 5.5 cm; p < 0.05) decreased in both genotype groups (TT vs. AT + AA). With the S diet, BMI (-0.9 ± 1.1 vs. -1.8 ± 1.2; p < 0.05), weight (-3.2 ± 3.0 vs. -9.1 ± 3.6 kg; p < 0.05), fat mass (-3.0 ± 3.1 vs. -5.2 ± 3.1 kg; p < 0.05) and waist circumference (-3.1 ± 4.0 vs. -8.1 ± 4.9 cm; p < 0.05) decreased in both genotype groups. With the HP diet and in both genotype groups, glucose, insulin levels, homeostasis model assessment of insulin resistance (HOMA-IR), total cholesterol, triglycerides and low-density lipoprotein (LDL) decreased. With the S diet, total cholesterol and LDL decreased. Conclusion: Weight loss was better in A allele carriers than noncarriers, and metabolic improvement was better with the HP diet.
Atherosclerotic Renal Artery Stenosis Prevalence and Correlations in Acute Myocardial Infarction Patients Undergoing Primary Percutaneous Coronary Interventions: Data From Nonrandomized Single‐Center Study (REN‐ACS)—A Single Center, Prospective, Observational Study
Authors: Burlacu Alexandru , Siriopol Dimitrie , Voroneanu Luminita , Nistor Ionut , Hogas Simona , Nicolae Ana , Nedelciuc Igor , Tinica Grigore , Covic Adrian
Published: October 2015

Background

We are the first to evaluate the prevalence of renal artery stenosis (
RAS
) in consecutive patients with acute myocardial infarction (
AMI
) referred for primary percutaneous coronary intervention from a single tertiary center. As a novelty, we assessed hydration and metabolic status and measured arterial stiffness. We elaborated a predicting model for
RAS
in
AMI
.

Methods and Results

One hundred and eighty‐one patients with
AMI
underwent concomitantly primary percutaneous coronary intervention and renal angiography. We obtained data on demographics, medical history, cardiovascular risk factors, echocardiography, Killip class, and blood tests. In the first 24 hours post–primary percutaneous coronary intervention, we assessed bioimpedance through Body Composition Monitoring
®
and arterial stiffness through pulsed‐wave velocity, SphygmoCor
®
. Significant
RAS
(>50% lumen narrowing,
RAS
+) was present in 16.6% patients. In the
RAS
+ group we recorded significantly higher stiffness,
CRUSADE
score and dehydration, and more women with higher prevalence of multivascular coronary artery disease and heart failure. In our multivariate models, variables independently associated with
RAS
+ were previous percutaneous coronary intervention, low estimated glomerular filtration rate, multivascular coronary artery disease, and total/extracellular body water. These models had good specificity and low sensitivity.

Conclusions

We observed that
RAS
+
AMI
patients have a particular hydration, metabolic, and endothelial profile that could generate more future major adverse cardiac events. Hence, renal angiography in
AMI
should be considered in specific subsets of patients.

Clinical Trial Registration

URL
:
https://www.clinicaltrials.gov/
. Unique identifier:
NCT
02388139.
On a Phonetic Change in Southern Tati
Authors: Khazerlou Sadegh Najafi
Published: October 2015

The article is devoted to a historical change in the phonetical system of the Southern Tati
dialects, belonging to Āturpātakān-South Caspian group of North–West Iranian.
On the Number of Iranian Turkophones
Authors: Arakelova Victoria
Published: October 2015

The main body of the Iranian Turkophone mass generally consists of two parts: proper Turkic groups (the Turkmens par excellence) and the Turkic-speaking ethnic Iranians, predominantly the Azaris, inhabiting the north-west provinces of Iran roughly covering historical Aturpatākān. The number of the latter, usually depicted as a huge multimillion conglomeration, has remained one of the most speculative issues of the field.

The article analyses the statistical data concerning namely this segment of the Iranian citizenry.
The Exegesis of Bahya Ben Asher for Gen. 15:7
Authors: Tohar Vered
Published: October 2015

Bahya Ben Asher ibn Halawa (1255–1340) is one of Spain’s renowned exegetes. His interpretation of the Torah was published in many editions and quoted by later commentators, so that his oeuvre became widely disseminated and highly influential. What makes his commentary unique is his innovation of combining it with traditions he was familiar with, including many legends. In his interpretation of Genesis 15:7, he takes an original approach, incorporating a medieval legend about our forefather Abraham that was generally quoted in non-canonic literary compositions. In this way, he contributed to the legend’s acceptance in the mainstream exegetical canon, while at the same time developing its exegetic potential even further.
New combinations in Drynaria (Polypodiaceae subfam. Polypodioideae)
Authors: Christenhusz Maarten J.M.
Published: October 2015

In a study exploring humus-collecting leaves in drynaroid ferns (Janssen & Schneider 2005), a phylogenetic analysis of this clade was produced, providing evidence that Drynaria (Bory; 1825: 463) Smith (1842: 60) is paraphyletic with regard to Aglaomorpha Schott (1836: pl. 19). Janssen & Schneider (2005) thus proposed to merge Drynaria with Aglaomorpha (the older name) because there are few morphological characters that separate the genera, resulting infrequent confusion. Further studies of the clade found that Christiopteris Copeland (1917: 331) is also included (Schneider et al. 2008), and even though the two species lack nectaries and humus-collecting leaves, they should also be included, which makse the genus more difficult to define morphologically. However, merging these genera is far preferable to disintegration of a well-established genus like Drynaria (Christenhusz & Schneider 2012).
Shedding light on a species from the shadows: the case of Paepalanthus macaheensis (Eriocaulaceae)
Authors: Trovó Marcelo , Sano Paulo
Published: October 2015

Open grasslands are the usual habitats of Eriocaulaceae, but a few species also grow in forest understory. Paepalanthus macaheensis grows exclusively in shaded habitat, and has broad morphological variation and a confusing taxonomy. Here, the nomenclatural history associated with this species is clarified, the name is formally reestablished, and a second-step lectotype for the name is designated. Paepalanthus euryphyllus is proposed as a new synonym of P. macaheensis and comparisons with morphologically similar species are presented. A detailed description, the first line drawings of P. macaheensis, photographs, and a distribution map are provided. An official conservation status of endangered was assessed by the Brazilian National Center for Flora Conservation (CNCFlora).
Stelis concava (Orchidaceae, Pleurothallidinae), a new species from the Brazilian Atlantic Forest
Authors: Miranda Marcelo Rodrigues , Furtado Samyra Gomes , Menini Neto Luiz
Published: October 2015

A new species of Stelis from Brazil is described and illustrated. Stelis concava is the third species of the S. sect. Humboldtia known in Brazil and the first described in the Atlantic Forest.
Pitcairnia queroana (Pitcairnioideae, Bromeliaceae), a striking new species from Chiapas state, Mexico
Authors: Espejo Adolfo , López-Ferrari Ana Rosa
Published: October 2015

Pitcairnia queroana, known only from the state of Chiapas, Mexico, is here described and illustrated. The new taxon superficially resembles P. sulphurea but differs from it by the presence of long petioles, longer inflorescence with more than 60 flowers, purple calyx, and the conspicuous and dense white-lanate-tomentose indument that covers all the inflorescence. An identification key for the taxa of the genus present in this state is also included.
Future Projections of Extreme Ocean Wave Climates and the Relation to Tropical Cyclones: Ensemble Experiments of MRI-AGCM3.2H*
Authors: Shimura Tomoya , Mori Nobuhito , Mase Hajime
Published: October 2015

Future projections of extreme ocean surface wave climates were carried out with single-model ensemble experiments of the atmospheric global climate model MRI-AGCM3.2H. The ensemble experiments of MRI-AGCM3.2H consist of four future sea surface temperature (SST) ensembles and three perturbed physics (PP) ensembles. This study showed that future changes in extreme wave heights strongly depend on the global climate model (GCM) performance to simulate tropical cyclones (TCs), indicating a need to acknowledge that results in a study that employs a low-performance model are not able to account for extreme waves associated with TCs (TC waves). The spatial distribution of future changes in non-TC extreme wave heights on the global scale was similar to that for mean wave heights; namely, wave heights increase over the middle-to-high latitudes in the Southern Ocean and central North Pacific and decrease over midlatitudes and the North Atlantic, although the magnitude of future changes for extreme wave heights is greater than for mean wave heights. The variance of future changes mainly depends on differences in physics among PP ensemble experiments rather than differences in SST ensembles. The 10-yr return wave heights of TC waves over the western North Pacific showed either an increase or a decrease of 30% for different regions, maximally. The spatial distribution of future changes in TC waves can be explained by an eastward shift of TC tracks.
Trends in the Frequency of High Relative Humidity over China: 1979–2012*
Authors: Mao Rui , Gong Dao-Yi , Zhao Tianbao , Wang Wenshan , Yang Jing
Published: October 2015

High relative humidity (HRH) is defined as a relative humidity of at least 80%, which is often associated with the occurrence of cloud layers. Thus, the frequency of HRH and its changes in the troposphere may be related to the occurrence frequency of cloud layers and their changes. In this study, trends in the frequency of HRH (defined as days with relative humidity ≥80%) over China from the surface to the midtroposphere (≥400 hPa) from 1979 to 2012 were analyzed using a homogenized humidity dataset for spring (March–May), summer (June–August), autumn (September–November), and winter (December–February). The results for the ground level indicate decreasing trends at most stations in southeastern China in spring and in northern China in summer. In the lower troposphere (850 and 700 hPa), most stations over China exhibit positive trends in summer, autumn, and winter. For the midtroposphere (500–400 hPa), increasing trends dominate over China in spring, summer, and autumn. Finally, six reanalysis datasets, the NCEP–NCAR, NCEP–DOE, CFSR, ERA-Interim, MERRA, and JRA-55 datasets, were compared with the observed increasing trends in HRH frequency in the low-to-middle troposphere. Similar increasing trends in HRH frequency in the reanalysis datasets and the homogenized humidity data are observed in certain seasons and for certain regions. These results are consistent with the increasing low-to-middle cloud amounts in recent decades.
Computerized Cognitive Training for Amelioration of Cognitive Late Effects Among Childhood Cancer Survivors: A Randomized Controlled Trial
Authors: Conklin Heather M. , Ogg Robert J. , Ashford Jason M. , Scoggins Matthew A. , Zou Ping , Clark Kellie N. , Martin-Elbahesh Karen , Hardy Kristina K. , Merchant Thomas E. , Jeha Sima , Huang Lu , Zhang Hui
Published: October 2015

Purpose

Children receiving CNS-directed therapy for cancer are at risk for cognitive problems, with few available empirically supported interventions. Cognitive problems indicate neurodevelopmental disruption that may be modifiable with intervention. This study evaluated short-term efficacy of a computerized cognitive training program and neural correlates of cognitive change.

Patient and Methods

A total of 68 survivors of childhood acute lymphoblastic leukemia (ALL) or brain tumor (BT) with identified cognitive deficits were randomly assigned to computerized cognitive intervention (male, n = 18; female, n = 16; ALL, n = 23; BT, n = 11; mean age ± standard deviation, 12.21 ± 2.47 years) or waitlist (male, n = 18; female, n = 16; ALL, n = 24; BT, n = 10; median age ± standard deviation, 11.82 ± 2.42 years). Intervention participants were asked to complete 25 training sessions at home with weekly, telephone-based coaching. Cognitive assessments and functional magnetic resonance imaging scans (intervention group) were completed pre- and postintervention, with immediate change in spatial span backward as the primary outcome.

Results

Survivors completing the intervention (n = 30; 88%) demonstrated greater improvement than controls on measures of working memory (mean ± SEM; eg, Wechsler Intelligence Scale for Children [fourth edition; WISC-IV] spatial span backward, 3.13 ± 0.58 v 0.75 ± 0.43; P = .002; effect size [ES], 0.84), attention (eg, WISC-IV spatial span forward, 3.30 ± 0.71 v 1.25 ± 0.39; P = .01; ES, 0.65), and processing speed (eg, Conners' Continuous Performance Test hit reaction time, −2.10 ± 1.47 v 2.54 ± 1.25; P = .02; ES, .61) and showed greater reductions in reported executive dysfunction (eg, Conners' Parent Rating Scale III, −6.73 ± 1.51 v 0.41 ± 1.53; P = .002; ES, 0.84). Functional magnetic resonance imaging revealed significant pre- to post-training reduction in activation of left lateral prefrontal and bilateral medial frontal areas.

Conclusion

Study findings show computerized cognitive training is feasible and efficacious for childhood cancer survivors, with evidence for training-related neuroplasticity.
Genome-wide ChIP-seq analysis of human TOP2B occupancy in MCF7 breast cancer epithelial cells
Authors: Manville Catriona M. , Smith Kayleigh , Sondka Zbyslaw , Rance Holly , Cockell Simon , Cowell Ian G. , Lee Ka Cheong , Morris Nicholas J. , Padget Kay , Jackson Graham H. , Austin Caroline A.
Published: October 2015

We report the whole genome ChIP seq for human TOP2B from MCF7 cells. Using three different peak calling methods, regions of binding were identified in the presence or absence of the nuclear hormone estradiol, as TOP2B has been reported to play a role in ligand-induced transcription. TOP2B peaks were found across the whole genome, 50% of the peaks fell either within a gene or within 5 kb of a transcription start site. TOP2B peaks coincident with gene promoters were less frequently associated with epigenetic features marking active promoters in estradiol treated than in untreated cells. Significantly enriched transcription factor motifs within the DNA sequences underlying the peaks were identified. These included SP1, KLF4, TFAP2A, MYF, REST, CTCF, ESR1 and ESR2. Gene ontology analysis of genes associated with TOP2B peaks found neuronal development terms including axonogenesis and axon guidance were significantly enriched. In the absence of functional TOP2B there are errors in axon guidance in the zebrafish eye. Specific heparin sulphate structures are involved in retinal axon targeting. The glycosaminoglycan biosynthesis–heparin sulphate/heparin pathway is significantly enriched in the TOP2B gene ontology analysis, suggesting changes in this pathway in the absence of TOP2B may cause the axon guidance faults.
A zinc finger protein that regulates oligodendrocyte specification, migration, and myelination in zebrafish
Authors: Sidik Harwin , Talbot William S.
Published: October 2015

Precise control of oligodendrocyte migration and development is critical for myelination of axons in the central nervous system (CNS), but important questions remain unanswered about the mechanisms controlling these processes. In a zebrafish screen for myelination mutants, we identified a mutation in zinc finger protein 16-like (znf16l). znf16l larvae have reduced myelin basic protein (mbp) expression and reduced CNS myelin. Marker, time-lapse, and ultrastructural studies indicated that oligodendrocyte specification, migration, and myelination are disrupted in znf16l mutants. Transgenic studies indicated that znf16l acts autonomously in oligodendrocytes. Expression of Zfp488 from mouse rescued mbp expression in znf16l mutants, indicating that these homologs have overlapping functions. Our results defined the function of a new zinc finger protein with specific function in oligodendrocyte specification, migration, and myelination in the developing CNS.
Η Βυζαντινή οικογένεια των Αγιοθεοδωριτών ΙΙ: Μιχαήλ Αγιοθεοδωρίτης, πρωτονωβελισσιμοϋπέρτατος λογοθέτης του δρόμου και ορφανοτρόφος
Authors: ΜΑΔΑΡΙΑΓΑ Ελισάβετ
Published: October 2015

Michael Hagiotheodorites was the brother of Nicholas Hagiotheodorites, Metropolitan of Athens (ca. 1166-1175) and, we believe, also of the mesazon (1143 - ca. 1155) John (1) Hagiotheodorites. He was certainly one of the most illustrious and powerful officials of Manuel I Comnenus. By 1158/59, he was already the man of confidence (in his capacity of mesazon and after succeeding Theodore Styppeiotes also as epi tou kanikleiou) of Manuel I Comnenus. Logothete tou dromou from 1166, Eustathius tells us that he died shortly before the death of the emperor himself, namely Michael died ca. 1179-1180. Since the year 1166, he holds in addition the office of Orphanotrophe of Constantinople. If not earlier, at least after 1175, he became a member of the clergy of St. Sophia and also took up monastic life (but he held political office until his death!). The latter finding strengthens our belief that Michael died being childless.
Bιβλιοκρισία:Well Begun is Only Half Done: Tracing Aristotle's Political Ideas in Medieval Arabic, Syriac, Byzantine, and Jewish Sources, ed. by V. SYROS [Medieval and Renaissance Texts and Studies, v. 388. Medieval Confluences series, v. 1], Τempe 2011
Authors: ΛAΜΠΑΚΗΣ Στυλιανός
Published: October 2015

Βιβλιοκρισία του:
Well Begun is Only Half Done: Tracing Aristotle's Political Ideas in Medieval Arabic, Syriac, Byzantine, and Jewish Sources, edited by V. Syros  [Medieval and Renaissance Texts and Studies, volume 388. Medieval Confluences series, volume 1], Arizona Center for Medieval and Renaissance Studies, Tempe 2011, σσ. xiii + 226. ISBN 978 0 86698 436 2
Βιβλιοκρισία:T. VELMANS, L’image byzantine ou la transfiguration du réel. L’ espace, le temps, les hommes, la mort, les doctrines, Paris, 2009, 225 σελ., 61 εικ., ISBN 978-2-7541-0357-2
Authors: ΔΡΑΚΟΠΟΥΛΟΥ Ευγενία
Published: October 2015

Βιβλιοκρισία:
T. Velmans, L’image byzantine ou la transfiguration du réel.  L’ espace, le temps, les hommes, la mort, les doctrines, Paris, 2009, 225 σελ., 61 εικ., ISBN 978-2-7541-0357-2
Βιβλιοκρισία: Documents Concerning Cyprus from the Hospital’s Rhodian Archives: 1409-1459, εκδ. K. BORCHARDT, A. LUTTRELL, E. SCHÖFFLER [Cyprus Research Centre. Texts and Studies in the History of Cyprus –LXVI], Λευκωσία 2011, xcii + 550 σελ.
Authors: ΚΟΥΜΑΝΟΥΔΗ Μαρίνα
Published: October 2015

Βιβλιοκρισία: Documents Concerning Cyprus from the Hospital’s Rhodian Archives: 1409-1459, εκδ. K. Borchardt, A. Luttrell, E. Schöffler [Cyprus Research Centre. Texts and Studies in the History of Cyprus –LXVI], Λευκωσία 2011, xcii + 550 σελ., ISBN 978-9963-0-8124-0.
Η συμβατική ψυχολογία και η νομολογική γνώση: δύο πηγές για την κοινωνιολογική ερμηνεία
Authors: Watier Patrick
Published: October 2015

Ο συγγραφέας, μελετώντας τα προβλήματα που προκύπτουν στην παραγωγή της κοινωνιολογικής γνώσης από την τομή μεταξύ επιστήμης και κοσμικής γνώσης και εξετάζοντας τις πηγές από τις οποίες αντλεί ο κοινωνιολόγος, επιχειρεί να καταδείξει τη σχέση μεταξύ λογοτεχνικών πηγών και κοινωνιολογικής ερμηνείας. Η κοινωνιολογική ανάλυση μπορεί να ανακαλύψει στα λογοτεχνικά έργα ερευνητικούς προσανατολισμούς που επιτρέπουν στον κοινωνικό επιστήμονα να αποφύγει τις λογοκρισίες ή τις αθεμελίωτες προϋποθέσεις της εργασίας του, οι οποίες εμπλέκονται σε μια επιστημονική ή εμπειριστική παράσταση της επιστημονικής εργασίας. Η παράσταση αυτή είναι εμφανής σήμερα όπου οι κοινωνικές επιστήμες κυριαρχούνται από μια θετικιστική φιλοσοφία.
ΕΛΛΗΝΙΚΗ ΕΘΝΙΚΗ ΤΑΥΤΟΤΗΤΑ: ΣΗΜΑΝΣΕΙΣ ΚΑΙ ΣΗΜΑΣΙΟΔΟΤΗΣΕΙΣ
Authors: Στρατουδάκη Χαρά
Published: October 2015

Η εργασία μας επιχειρεί να αφουγκραστεί τα πραγματικά υποκείμενα της εθνικής ταυτότητας: τα μέλη του έθνους. Αξιοποιώντας ως αφετηρία την έννοια των «σημάνσεων» της ταυτότητας, ιχνηλατεί τις διαδρομές της εθνικής ταυτότητας των εκπαιδευτικών των διαπολιτισμικών σχολείων του Νομού Αττικής. Με οδηγό τις σημάνσεις που αναφέρονται στον ιδανικό και πραγματικό εθνικό εαυτό, τον εθνικό χρόνο και τον υποκειμενικό ορισμό του έθνους, οδηγείται σε τέσσερις διαφορετικές ταυτοτικές αφηγήσεις, τέσσερις εκδοχές της νεοελληνικής εθνικής ταυτότητας.

 
FOODS AND POETRY
Authors: Μύσνικ Ζοζέ
Published: October 2015

Η γνώση των τροφών, όπως η όποια άλλη γνώση, αξιεί ποικίλες προσεγγίσεις. Η μελέτη των ποιητικών κειμένων διαφόρων πολιτισμών αποτελεί ένα ανεκτίμητο τοπίο της διατροφικής γνώσης. Στο άρθρο αυτό θα εκκινήσουμε με την επισήμανση των συναφειών των ποιητικών βιωμάτων και των ποιητικών κειμένων με τη γνωριμία των τροφίμων. Σε δεύτερο πλάνο, εξετάζουμε την ποιητική γλώσσα και τις αναλογίες της με τη γαστρονομική τοιαύτη. Θα δούμε στη συνέχεια πώς αυτή η γνώση συμβάλλει στο να εκτιμήσουμε διατροφικές κουλτούρες μέσω της διασάφησης των κοινωνικών δεσμών μεταξύ τροφών, γευμάτων και εορτών. Ό,τι τα άτομα τρώγουν καταμαρτυρεί το γεγονός ότι ανήκουν σε μια συγκεκριμένη κουλτούρα. Κατά τρίτον, θα αναλύσουμε το ρόλο της συμβολικής αξίας της τροφής, καθότι η θέση των ατόμων σε μια κοινωνία εικονίζεται με σύμβολα στα οποία τα άτομα αναγνωρίζουν τους εαυτούς τους. Και αυτές οι συμβολικές αξίες καθορίζουν σταθερά διατροφικές συνήθειες αλλά και τρέχουσες διατροφικές τιμές.
Θύτες και θύματα: Ερευνητικά δεδομένα και τρόποι αντιμετώπισης της θυματοποίησης στο σχολείο
Authors: Κυριακίδης Σταύρος Π.
Published: October 2015

Το άρθρο αποτελεί μια επιλεκτική ανασκόπηση της βιβλιογραφίας σε σχέση με τη θυματοποίηση στο σχολικό περιβάλλον. Αναφέρονται οι ορισμοί της θυματοποίησης, η έκταση του φαινομένου, οι διάφορες μορφές της θυματοποίησης, τα χαρακτηριστι­κά των θυτών, τα χαρακτηριστικά των θυμάτων, τα μέρη του σχολικού χώρου όπου συνήθως λαμβάνει χώρα. Ακόμη, παρουσιάζονται οι ψυχοκοινωνικές επιπτώσεις της θυματοποίησης και οι τυχόν διαφορές που υπάρχουν σύμφωνα με την ηλικία, οι θεω­ρητικές προσεγγίσεις που έχουν επιχειρήσει να ερμηνεύσουν το φαινόμενο αυτό, ενώ μεθοδολογικά εξετάζονται οι τρόποι και οι κλίμακες που καταγράφουμε τη θυματο­ποίηση. Τέλος, παρουσιάζονται οί παρεμβάσεις που έχουν γίνει μέχρι σήμερα και επιχειρείται μία πρώτη αξιολόγηση της αποτελεσματικότητάς τους. Προτείνονται τρόποι αντιμετώπισης της θυματοποίησης σε επίπεδο σχολικής μονάδας, σχολικής τάξης αλλά και σε ατομικό επίπεδο.
Υβριδικά πανεπιστήμια και τηλεκπαίδευση. Η περίπτωση του Εθνικού Μετσόβιου Πολυτεχνείου
Authors: Λιναρδής Απόστολος , Μοσχά Άννα , Τουρατζίδης Λουδοβίκος , Σπυρόπουλος Κυριάκος
Published: October 2015

Η τηλεκπαίδευση αποτελεί μία μέθοδο εκπαίδευσης η οποία με κατάλληλη εφαρμο­γή μπορεί να βοηθήσει στην επίλυση πολλών προβλημάτων του παραδοσιακού εκπαιδευτικού μας συστήματος. Πολλά είναι πλέον τα πανεπιστήμια που παρέχουν μέρος των εκπαιδευτικών τους προγραμμάτων και μέσω της εξ αποστάσεως εκπαί­δευσης. Η προοπτική μετατροπής των υπαρχόντων ακαδημαϊκών ιδρυμάτων παρα­δοσιακού τύπου σε αυτά υβριδικού τύπου δε φαντάζει πλέον τόσο μακρινή. Παρόλα αυτά η νέα μέθοδος εκπαίδευσης αμφισβητείται από πολλούς. Το έτος 2005, το Κέντρο Υπολογιστών του ΕΜΠ σε συνεργασία με το Κέντρο Ξένων Γλωσσών ανέ­πτυξε ενα μάθημα τηλεκπαίδευσης αγγλικής τεχνικής ορολογίας, συμπληρωματικό στην τρέχουσα σειρά μαθημάτων. Το μάθημα αντικαθιστούσε γραπτή εργασία. Από τα αποτελέσματα της έρευνας παρατηρείται μία ιδιαίτερη θετική στάση των εκπαι­δευτικών και των φοιτητών προς το καινούργιο εκπαιδευτικό μέσο.
Ανάμεσα στην πόλη και το χωράφι: διερευνώντας το κοινωνικο-επαγγελματικό προφίλ των νέων αγροτών με αφορμή το πρόγραμμα «Νέοι Αγρότες»
Authors: ΠΕΤΡΟΥ ΜΙΧΑΛΗΣ , ΚΟΥΤΣΟΥ ΣΤΑΥΡΙΑΝΗ
Published: October 2015

Το παρόν άρθρο, με αφορμή την ενεργοποίηση του προγράμματος «Νέοι Αγρότες» (2014), σε  συνδυασμό με τους στόχους της ΚΑΠ 2014-2020 για την ανασυγκρότηση της υπαίθρου, εστιάζει στους νέους που αναζήτησαν την εγκατάστασή τους στη γεωργία στις αρχές της προηγούμενης δεκαετίας. Βασιζόμενη στα αποτελέσματα έρευνας πεδίου που πραγματοποιήθηκε σε μια αγροτική περιοχή της Βόρειας Ελλάδας κατά το διάστημα 2008-10, η εργασία αυτή διερευνά τις κατηγορίες των νέων που αποφάσισαν ν’ απασχοληθούν στη γεωργία εγκαταλείποντας, οι περισσότεροι, την πόλη, σε μια εποχή που η γεωργία φάνταζε ως ελκυστικό επάγγελμα. Το πρόγραμμα «Νέοι Αγρότες» της περιόδου εκείνης λειτούργησε για αρκετούς νέους προτρεπτικά, αλλά για άλλους αποτρεπτικά, καθώς γρήγορα έγιναν φανερά τα αδιέξοδα που δημιούργησε. Αξιοποιώντας αποτελέσματα εθνογραφικής έρευνας, καταγράφεται παράλληλα το πλαίσιο διαμόρφωσης του κοινωνικο-επαγγελματικού προφίλ των νέων μερικά χρόνια μετά την εγκατάστασή τους στη γεωργία. Η εργασία αυτή συμβάλλει σε ένα γενικότερο προβληματισμό σχετικό με την αποτελεσματικότητα του προγράμματος και τη γενικότερη συζήτηση σήμερα για την επιστροφή των νέων στην ύπαιθρο και την εγκατάσταση στη γεωργία.
WHO ARE ENVIRONMENTA L REFUGEES? THE POLITICAL PROJECTIONS OF THE DEBATE
Authors: Τσουμπάρης Δημήτρης
Published: October 2015

Από τη δεκαετία του 1970 μέχρι σήμερα υπάρχει μία πλούσια και συχνά αντικρουόμενη βιβλιογραφία που αφορά στη σύνδεση της περιβαλλοντικής αλλαγής με την ανθρώπινη μετανάστευση και τους λεγόμενους περιβαλλοντικούς πρόσφυγες. Το άρθρο προσπαθεί να παρουσιάσει με κριτική ματιά τη σχετική δημόσια συζήτηση, να διαλευκάνει τον όρο περιβαλλοντικοί πρόσφυγες και να εξετάσει την καταλληλότητά του. Στην προσπάθεια αυτή γίνεται ανάλυση παραδειγματικών περιπτώσεων που αφορούν σε καταστάσεις περιβαλλοντικών καταστροφών, υποβαθμίσεων και απαλλοτριώσεων. Επίσης, γίνεται κριτική στα επιχειρήματα της περιβαλλοντικής ασφάλειας και στις πολιτικές της προεκτάσεις, συνδέοντας το ζήτημα με τις επιπτώσεις της αναπτυξιακής διαδικασίας και την κριτική των σχέσεων εκμετάλλευσης των χωρών του Νότου από τον Βορρά.
Το κοινωνικό περιεχόμενο της αντιπαροχής και οι οικονομικές του προεκτάσεις
Authors: Κάτσικας Ηλίας
Published: October 2015

Αντικείμενο τον άρθρου είναι η μελέτη της σχέσης αντιπαροχής. Τα θέματα πον
θίγονται είναι δύο. Το πρώτο περιστρέφεται γύρω από τους λόγους για τους
οποίους εισάγεται η ρύθμιση της αντιπαροχής και στη συνέχεια αναδεικνύεται
σε κυρίαρχη σχέση, ενώ δεν είχε ποτέ υποχρεωτικό χαρακτήρα. Η απάντηση
πον δίνεται εδώ συνδέει τη λειτουργία της αντιπαροχής με την επενδυτική/
αποταμιευτική συμπεριφορά του πληθυσμού στη μεταπολεμική περίοδο. Το
δεύτερο θέμα αφορά τις οικονομικές επιπτώσεις της αντιπαροχής στην τιμή της
κατοικίας. Σχετικά εξετάζονται οι πιθανές διασυνδέσεις της αντιπαροχής με
την παραγωγικότητα της εργασίας στον κλάδο της οικοδομής καθώς και η επίδρασή της στο ύψος της απόλυτης γαιοπροσόδου Το συμπέρασμα της ανάλυσης είναι ότι η αντιπαροχή επηρέασε θετικά μάλλον το κόστος κατασκευής, ενώ δε φαίνεται να παίζει ρόλο στη διαμόρφωση της απόλυτης γαιοπροσόδου.
Η επίδραση της κοινωνικής τάξης στον αλτρουισμό και στις αξίες ελλήνων εφήβων
Authors: Παπούλια Ελένη Μ.
Published: October 2015

Η Κλίμακα Αυτοαναφοράς Αλτρουισμού των Rushton, Chrisjohn και Fekken (1981) προσαρμόστηκε στα ελληνικά δεδομένα και δι’ αυτής ερειπώθηκε η επίδραση της κοινωνικής τάξης στον αλτρουισμό και στις αξίες (Schwartz και Bilsky, 1990) 460 εφήβων του λεκανοπεδίου Αττικής. 16-18 ετών. Πραγματοποιήθηκαν αναλύσεις αξιοπιστίας, διασποράς και συνδιασποράς. Αλτρουιστική υπεροχή παρατηρήθηκε στους εργατικής προέλευσης, αλλά και μεσοαστικής, εφήβους, έναντι των εφήβων μικροαστικής προέλευσης. Οι πρώτοι εμφάνισαν το υψηλότερο ποσοστό έντονα αλτρουιστικών απαντήσεων και το χαμηλότερο μη αλτρουιστικών. Στις κατηγορίες αξιών προηγήθηκαν: Στην «ισχύ» η μεσοαστική και μικροαστική τάξη της εργατικής, στην «επίδοση» η μικροαστική των υπολοίπων, στην «παγκοσμιότητα» η μεσοαστική των υπολοίπων και στην «αίσθηση ασφάλειας» η μικροαστική της μεσοαστικής. Και στις τρεις κοινωνικές τάξεις παρατηρήθηκαν υψηλά ποσοστά έντονα αλτρουιστικών απαντήσεων, ενώ οι πρώτες κατά σειρά εμφάνισης αξίες ήταν η «φιλανθρωπία» και η «παγκοσμιότητα».
INEQUALITY IN ΤΗΕ GREEK PENSION SYSTEM
Authors: Νικολόπουλος Κωνσταντίνος Β. , Υφαντόπουλος Γιάννης Ν.
Published: October 2015

Στην περίοδο της οικονομικής κρίσης, τα ζητήματα της κοινωνικής ασφάλισης και ιδιαίτερα τα θέματα της διασφάλισης ενός αξιοπρεπούς επίπεδου διαβίωσης των ηλικιωμένων καθίστανται ιδιαίτερα επιτακτικά. Τα συνταξιοδοτικά συστήματα στην Ευρώπη παρουσίασαν σημαντικά χρηματοδοτικά ελλείμματα και αδυναμίες ικανοποίησης των μακροχρόνιων συνταξιοδοτικών απαιτήσεων. Επιπλέον, παρουσίασαν αδυναμίες είσπραξης των κοινωνικών εισφορών καθώς και διαχείρισης των συνταξιοδοτικών παροχών, με αποτέλεσμα την ανισοκατανομή των συντάξεων και την ανάγκη χάραξης αποτελεσματικής κοινωνικής πολιτικής για την ικανοποίηση των αρχών της κοινωνικής δικαιοσύνης και της μακροχρόνιας οικονομικής βιωσιμότητας των ασφαλιστικών φορέων. Στη μελέτη αυτή διερευνούμε τις ανισότητες στις εισφορές στην Ελλάδα σε δέκα ασφαλιστικούς φορείς και τις συγκρίνουμε με τις αντίστοιχες ανισότητες στις συνταξιοδοτικές παροχές για τη περίοδο 1982 -2003. Επιπλέον, εξετάζεται η διαχρονική εξέλιξη των ανισοτήτων στις συντάξεις στις χώρες της ΕΕ-15 και διαπιστώνεται ότι οι ανισότητες αυξήθηκαν στη χώρα μας. Η υιοθέτηση μέτρων κοινωνικής πολιτικής για την αντιμετώπιση της επερχόμενης κρίσης στις συντάξεις είναι άμεσης προτεραιότητας.
Introduction
Authors: Ζακοπούλου Έρση , Πετρονώτη Μαρίνα
Published: October 2015

Δεν παρατίθεται περίληψη στα ελληνικά.