scholarly journals Closing the Door on Quantum Nonlocality

Entropy ◽  
2018 ◽  
Vol 20 (11) ◽  
pp. 877 ◽  
Author(s):  
Marian Kupczynski

Bell-type inequalities are proven using oversimplified probabilistic models and/or counterfactual definiteness (CFD). If setting-dependent variables describing measuring instruments are correctly introduced, none of these inequalities may be proven. In spite of this, a belief in a mysterious quantum nonlocality is not fading. Computer simulations of Bell tests allow people to study the different ways in which the experimental data might have been created. They also allow for the generation of various counterfactual experiments’ outcomes, such as repeated or simultaneous measurements performed in different settings on the same “photon-pair”, and so forth. They allow for the reinforcing or relaxing of CFD compliance and/or for studying the impact of various “photon identification procedures”, mimicking those used in real experiments. Data samples consistent with quantum predictions may be generated by using a specific setting-dependent identification procedure. It reflects the active role of instruments during the measurement process. Each of the setting-dependent data samples are consistent with specific setting-dependent probabilistic models which may not be deduced using non-contextual local realistic or stochastic hidden variables. In this paper, we will be discussing the results of these simulations. Since the data samples are generated in a locally causal way, these simulations provide additional strong arguments for closing the door on quantum nonlocality.

Author(s):  
Marian Kupczynski

Bell type inequalities are proven using oversimplified probabilistic models and/or counterfactual definiteness (CFD). If setting-dependent variables describing measuring instruments are correctly introduced none of these inequalities may be proven. In spite of this a belief in a mysterious quantum nonlocality is not fading. Computer simulations of Bell tests allow studying different scenarios how the experimental data might have been created. They allow also to generate outcomes of various counterfactual experiments such as repeated or simultaneous measurements performed in different settings on the same ‘’ photon-pair” etc. They allow reinforcing or relaxing CFD- compliance and /or to study the impact of various “photon identification procedures” mimicking those used in real experiments. Using a specific setting- dependent identification procedure data samples consistent with quantum predictions may be generated. It reflects an active role of instruments during the measurement process. Each setting dependent data samples are consistent with specific setting –dependent probabilistic models which may not be deduced using non-contextual local realistic or stochastic hidden variables. In this paper we discuss the results of these simulations. Since the data samples are generated in a locally causal way, these simulations provide additional strong arguments for closing the door on quantum nonlocality


2021 ◽  
Vol 22 (2) ◽  
pp. 501
Author(s):  
Kateřina Skopalová ◽  
Katarzyna Anna Radaszkiewicz ◽  
Věra Kašpárková ◽  
Jaroslav Stejskal ◽  
Patrycja Bober ◽  
...  

The active role of biomaterials in the regeneration of tissues and their ability to modulate the behavior of stem cells in terms of their differentiation is highly advantageous. Here, polypyrrole, as a representantive of electro-conducting materials, is found to modulate the behavior of embryonic stem cells. Concretely, the aqueous extracts of polypyrrole induce neurogenesis within embryonic bodies formed from embryonic stem cells. This finding ledto an effort to determine the physiological cascade which is responsible for this effect. The polypyrrole modulates signaling pathways of Akt and ERK kinase through their phosphorylation. These effects are related to the presence of low-molecular-weight compounds present in aqueous polypyrrole extracts, determined by mass spectroscopy. The results show that consequences related to the modulation of stem cell differentiation must also be taken into account when polypyrrole is considered as a biomaterial.


Author(s):  
Edy Effendi ◽  
Muhammad Imron

Research on the role of the APIP review of the Ministry/agency Work Plan and Budget document to determine the impact on the efficiency of ministry/agency spending (case study at the Ministry of Religion). The method used in this study uses simple linear regression with dummy. The use of linear regression is used to examine the relationship between independent variables (certain types of expenditure) and dependent variables (total expenditure). Whereas, dummy is used to find out before and after the APIP review is done. Throughout the author's search, this research has never been done. Based on the results of linear regression obtained, the APIP review significantly had a positive effect on official travel expenditure and honorarium but did not significantly affect building spending and equipment. Abstrak   Penelitian atas peran reviu APIP atas dokumen Rencana Kerja dan Anggaran Kementerian Negara/Lembaga untuk mengetahui dampaknya terhadap efisiensi belanja kementerian/lembaga (studi kasus pada Kementerian Agama). Metode yang digunakan dalam penelitian ini menggunakan regresi linier sederhana dengan dummy. Penggunaan regresi liner digunakan untuk meneliti hubungan antara variable independen (jenis belanja tertentu) dan variable dependen (total belanja). Sedangkan, dummy digunakan untuk mengetahui sebelum dan setelah reviu APIP dilakukan. Sepanjang penelusuran penulis, penelitian ini belum pernah dilakukan. Berdasarkan hasil regresi linier diperoleh, reviu APIP signifikan berpengaruh positif terhadap  belanja perjalanan dinas dan honorarium tetapi tidak signifikan berbengaruh terhadap belanja gedung dan alat.


2020 ◽  
Vol 21 (6) ◽  
pp. 610-627
Author(s):  
Ryan Rogers

This study provides an experiment to examine whether announcer gender impacts audience demand. With special attention to literature detailing the role of women in sports, sports economics, as well as uses and gratifications theory, this study provides an experiment wherein participants watched a sporting event announced by a man or a woman. Afterward, the participants responded to questions regarding their attitudes toward the sporting event they watched. Overall, the male announcer engendered greater feelings of enjoyment and lower feelings of cognitive load than the female announcer. Feelings of autonomy and hostile sexism also played a significant role in mediating the relationship between independent and dependent variables. This study is diagnostic such that it provides empirical evidence that women will have a more difficult time succeeding in this labor market. Also, this study provides noteworthy areas for content producers to focus on in order to increase demand for a product.


Cells ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 2314
Author(s):  
Lisa Kurmann ◽  
Michal Okoniewski ◽  
Raghvendra K. Dubey

Stroke is the third leading cause of mortality in women and it kills twice as many women as breast cancer. A key role in the pathophysiology of stroke plays the disruption of the blood–brain barrier (BBB) within the neurovascular unit. While estrogen induces vascular protective actions, its influence on stroke remains unclear. Moreover, experiments assessing its impact on endothelial cells to induce barrier integrity are non-conclusive. Since pericytes play an active role in regulating BBB integrity and function, we hypothesize that estradiol may influence BBB by regulating their activity. In this study using human brain vascular pericytes (HBVPs) we investigated the impact of estradiol on key pericyte functions known to influence BBB integrity. HBVPs expressed estrogen receptors (ER-α, ER-β and GPER) and treatment with estradiol (10 nM) inhibited basal cell migration but not proliferation. Since pericyte migration is a hallmark for BBB disruption following injury, infection and inflammation, we investigated the effects of estradiol on TNFα-induced PC migration. Importantly, estradiol prevented TNFα-induced pericyte migration and this effect was mimicked by PPT (ER-α agonist) and DPN (ER-β agonist), but not by G1 (GPR30 agonist). The modulatory effects of estradiol were abrogated by MPP and PHTPP, selective ER-α and ER-β antagonists, respectively, confirming the role of ER-α and ER-β in mediating the anti-migratory actions of estrogen. To delineate the intracellular mechanisms mediating the inhibitory actions of estradiol on PC migration, we investigated the role of AKT and MAPK activation. While estradiol consistently reduced the TNFα-induced MAPK and Akt phosphorylation, only the inhibition of MAPK, but not Akt, significantly abrogated the migratory actions of TNFα. In transendothelial electrical resistance measurements, estradiol induced barrier function (TEER) in human brain microvascular endothelial cells co-cultured with pericytes, but not in HBMECs cultured alone. Importantly, transcriptomics analysis of genes modulated by estradiol in pericytes showed downregulation of genes known to increase cell migration and upregulation of genes known to inhibit cell migration. Taken together, our findings provide the first evidence that estradiol modulates pericyte activity and thereby improves endothelial integrity.


2019 ◽  
Vol 2 (2) ◽  
pp. 75
Author(s):  
Taufik Akbar Rizqi Yunanto

. Mental health is an important issue related to adolescent in their life. One of activitiy done by adolescent to spend their free time both at home and at school is to play with friends. In addition, friends factor becomes one of the strengthening factors in adolescent mental health. This study aims to determine the role of emotional regulation and peers social support toward mental health. This research was conducted on 102 students from Senior High School Yogyakarta, varying from 15 – 18 years old. Data was collected using teacher’s role interview, teacher’s role questionnaire, Mental Health Scale (Y), Emotional Regulation (X1) scale, and Peers Social Support (X2) scale. Data was analyzed using Anova and multiple regression analysis. The results showed that there was a strong  relationship (F = 66,628; p < 0,01) between emotional regulation and peers social support toward mental health. Based on the analysis of determination, obtained R2 of 0,574 or 57,4%. This shows that the percentage of contributions, both independent to dependent variables is equal to 57,4%. Further analysis is needed to find out the impact of emotional regulation and peers social support in improving mental health literacy.


Author(s):  
Ulwan Hibattul Wafi ◽  
Syaiful Arif

Science learning requires an active role from students, but in general students are taught about the concept of science learning with the teacher as the center (teacher center). The impact is the lack of the role of students in understanding science which should emphasize the active participation of these students. The student should have the observation skills to learn science by maximizing the five senses. Observation skills if they are already proficient, then the initial efforts of students to have Science Process Skills have been fulfilled. This study aims to determine the effect of implementing the guided inquiry model with a problem solving approach on students' observation skills on additive and addictive substances in class VIII SMPN 1 Sambit Ponorogo in the 2019/2020 academic year.


2020 ◽  
pp. 088832541989799
Author(s):  
Ivan Stefanovski

This article belongs to a forthcoming special cluster, “Contention Politics and International Statebuilding in Southeast Europe” guest-edited by Nemanja Džuverovic, Julia Rone and Tom Junes. This article looks at the impact of one of the recent waves of mobilization in the Republic of Macedonia, the “Citizens for Macedonia” platform, over policy outcomes that originally derived from the movement actor. Furthermore, the text highlights the crucial role of the international community in shaping and implementing the policy outcomes, playing the role of international statebuilders in the process of reintroducing of democracy in the captured Macedonian state. The theoretical framework and the literature review present an attempt to bridge contemporary works on social movement studies with those on democratization and international state building. A lot of emphasis is also put on the peculiar political opportunity structure, and the difficult and movement-unfriendly conditions in which the citizens’ platform operated. On the other hand, the article tries to show the gains and losses of a coalition between an established political party, and a loose horizontal network of citizens and citizens’ organizations that advocate for rule of law and protection of human rights. The central conclusions that can be extrapolated from this work are the strong and committed claims by the movement, articulated through various repertoires of action, but also the active role of the international community, which presented a conditio sine qua non, bringing down the regime led by former PM Nikola Gruevski and freeing the state institutions previously occupied by the political parties in power.


2015 ◽  
Vol 2 (2) ◽  
pp. 189-207
Author(s):  
Tuncay Bilecen ◽  
Mustafa Saygın Araz

Bu makalede, Londra’da genellikle “Türkçe konuşan topluluk” başlığı altında sınıflandırılan Türkiyeli göçmenlerin etnik (Türk/Kürt) ve mezhepsel (Sünni/Alevi) kimliklerinin Türkiye ve İngiltere siyasetine yönelik ilgi ve katılım düzeylerine ne ölçüde etki ettiği incelenmektedir. Çalışmada, Haziran – Eylül 2013 tarihleri arasında Londra’da 213 göçmenle yapılan anket çalışması neticesinde elde edilen veriler önce Faktör Analizi daha sonra MANOVA (Tek Yönlü Çok Değişkenli Varyans Analizi) testinden geçirilmiştir. Faktör analizi ile bireylerin siyasal yaşama katılımlarını gösteren (“sivil katılım”, “siyasal ilgi”, “siyasal eylem” olmak üzere üç başlıkta sınıflandırılan) anlamlı değişkenler (faktörler) elde edilmiştir. Değişkenler elde edildikten sonra ise MANOVA analizinden yararlanılarak farklı etnik ve mezhepsel aidiyet gruplarının bu değişkenler üzerinde etkisi olup olmadığına bakılmıştır. Çalışmanın sonunda Londra’da yaşayan Türkiyeli göçmenlerin etnik ve mezhepsel kökenlerinin siyasal katılım düzeyleri üzerinde etkili olduğu sonucuna ulaşılmıştır.ENGLISH ABSTRACTTurkish migrants living in London and the impact of ethnic and religious belongings on their political attitude and behvaiourThis article investigates levels of the participation in political life of a particular migrant community referred to as ‘Turkish speaking community’ both in their country of origin (Turkey) and their country of residence (UK). This article specifically focuses on the effects of these migrants groups’ ethnic (i.e. Kurdish/ Turkish) and religious/sectarian (i.e. Alevi/Sunni) identities on their level of participation in the political life in Turkey and in the UK. The data informing this article was collected via administration of surveys with 213 participants between June and September 2013 with aforementioned migrant population. The data was analysis consisted of initial factor analysis followed by MANOVA. Through factor analysis meaningful variances in demonstrating the three types of participation in political life (civil participation, political interest and political activism) was revealed (bu umleyihala anlamadim ama sent mm diyorsan). After the determining of the dependant variables MANOVA analysis were conducted to determine the role of ethnic and religious belongingness on the dependent variables, i.e. types of participation in the political life.  The research concluded that ethnic and religious belongingness directly influience degree of political participation of the migrants from Turkey.   


2008 ◽  
Vol 4 (1) ◽  
pp. 28-37 ◽  
Author(s):  
Nagendra Lal Srivastava ◽  
Shashi K. Chaudhary

This article deals with the analysis of direct impact of remittance on three development indicators viz. GDP, GNP and PCI of the nation which are also the dependent variables of the proposed models. The analysis has been carried out with linear and log-linear models under multiple regressions. The impact of remittance has been seen most remarkable in the GDP and GNP both in nominal and real terms. In the nominal GDP and GNP, the remittance shows 61 percent and 72 percent impact respectively while in real term it shows 48 percent and 55 percent respectively. It has also shown positive impact on the PCI but it is comparatively low (four percent in nominal and one percent in real terms). The growth rates of independent variables (Rm, K, L and X) have also been tested in the same model to find the effects on the dependent variables. The findings are positive except for labor force, but they are marginal which show that remittance has not been used effectively so as to increase the real growth rates of the economy. The Journal of Nepalese Business Studies Vol. IV, No.1 (2007) pp. 28-37


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