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Digital entrepreneurship has attracted growing scholarly attention for its potential to alleviate poverty. Drawing on imprinting theory, this study examines how digital entrepreneurs’ past poverty experience shapes their poverty reduction outcomes. Using two waves of survey data from over 200 digital entrepreneurial ventures in rural China, we find that entrepreneurs’ past poverty experience exerts a significant positive effect on poverty reduction outcomes, and this relationship is mediated by the development of firms’ digital capabilities. Furthermore, resource constraints strengthen the imprinting–capability pathway, thereby amplifying the indirect effect of poverty experience on poverty reduction outcomes. This study deepens our understanding of the micro-level mechanisms through which digital entrepreneurship contributes to poverty alleviation, and provides a more nuanced framework for exploring the intersection of personal history and entrepreneurial outcomes in poverty reduction. It also advances imprinting theory by introducing a process-oriented perspective that highlights capability formation as a critical pathway through which early-life adversity is transformed into entrepreneurial outcomes.
The precise characterization of the mesoporous mineral matrix of a geopolymer is greatly complicated by its amorphous nature. No conventional characterization technique allows for its direct investigation. We propose here the use of alternative current impedance spectroscopy (AC-IS; generally called ‘complex impedance spectroscopy’) as an indirect method for probing geopolymers via their ionic conduction properties. Our study of ∼50 K-geopolymer pellets using AC-IS has made it possible to better describe the mesoporosity of alkali-activated materials. The latter were prepared by partial substitution of metakaolin by argillite, and these were then subjected to heat treatment up to 900°C and exposed for a long time to high or low relative humidity. The metakaolin substitution rate along with post-synthesis temperature and storage conditions were the variables that allowed us to track the phenomenon of charge transport via mesoporosity. Refining the impedance spectra over a range of temperatures, using simple and robust models, provided a set of values for the activation energies and diffusion coefficients. The results confirmed the open and ‘through-hole’ nature of the porosity, the localization of K+ cations in the interstitial liquid and their diffusion through the amorphous ceramic matrix during heat treatment, as well as the possible resumption of long-term alkaline activation for poorly reactive aluminosilicate sources.
This paper concerns the difficulty of avoiding an additive version of the Very Repugnant Conclusion. An impossibility theorem is provided which shows that we cannot avoid this version of the Repugnant Conclusion even if we deny the Mere Addition Principle and closely related principles which place limits on the badness of adding happy people, such as “Dominance Addition” and additive “Non-Sadism” conditions. I argue that the impossibility theorem shows that the additive version of the Very Repugnant Conclusion cannot reasonably be avoided by population-ethical means alone. One must instead either deny structural conditions such as acyclicity, adopt a radically unorthodox fixed-population axiology, or accept this version of the Very Repugnant Conclusion.
In previous work [4] we introduced and examined the class of betweenness algebras. In the current article we study a larger class of algebras with binary operators of possibility and sufficiency, the weak mixed algebras. Furthermore, we develop a system of logic with two binary modalities, sound and complete with respect to the class of frames closely related to the aforementioned algebras, and we prove an embedding theorem which solves an open problem from [4].
Afforestation and forest restoration have been central to emerging global strategies for climate change mitigation. Based on a framed field experiment (FFE) conducted in the Uttara Kannada region in Karnataka, India, this study investigates whether monetary incentives could effectively promote afforestation and what the likely distributional consequences are. The FFE set-up was designed to provide respondents with choices on planting native or commercial trees in their village common forest. The native trees were associated with higher risk of survival compared to commercial trees. They also provided a mix of monetary and non-monetary benefits which differed across three variations in the experimental design. We find that monetary payments for planting native species worked better when combined with non-monetary benefits. Also, private tenurial rights mediated responses to monetary incentives. The results highlight how heterogeneous interests within the community could play an important role in determining effectiveness and distributional outcomes of afforestation policy.
Obesity represents a major global public health concern. Body fat percentage (BF%) is a key indicator for assessing adiposity and provides a more precise estimation of obesity-related health risks compared to the traditional body mass index (BMI). Accumulating evidence suggests that BF% is influenced by both genetic and environmental factors. However, most genetic studies on BF% have been conducted in European and American population, with limited data available from Chinese cohorts. To address this gap, a classical twin study was conducted using data from the Qingdao Twin Registry in China to estimate the heritability of BF% adjusted for age, sex, and BMI. This study included Han Chinese twins registered in the Qingdao Twin Registry. This study included 344 middle and old-aged Chinese twin pairs (217 monozygotic and 127 dizygotic). comprising 327 males and 361 females. The median age of participants was 50 (interquartile range [IQR]:12) years, with BF% of 27.6 (11.4) %. Model fitting indicated that the best-fitting model was AE model. The additive genetic effect (A) accounted for 54% (95% CI [44, 59) of the total variance, while unique environmental effect (E) contributed 46% (95% CI [37, 56]). In conclusion, this twin-based study provides robust evidence for a moderate genetic contribution (heritability = 54%) to BF% in a middle- and old-aged Qingdao population.
The study offers a comparative view of the rituals associated with dying, death, and funerals of the Central European Habsburgs in the early modern period. The authors first attempt to place the topic within the historiographical framework of current research. They also pay attention to the heuristic basis on which the phenomenon can be studied. Further on in the text, they gradually reveal the course of the Habsburgs’ illnesses immediately preceding their deaths, the rituals associated with the different lengths of time the dying spent on their deathbeds, their deaths, autopsies, funerals, and subsequent mourning ceremonies, including the dissemination of information about the deaths of Central European Habsburgs to various parts of the Habsburg Monarchy, the Holy Roman Empire, and other European countries. The study concludes with a reflection on the representation of imperial majesty in the allegorical language of mourning ceremonies.
Drawing on the theory of policy diffusion, I analyze 129 regulatory firearm law provisions from 1991 to 2019 across the United States and examine the innovation and development of restrictive firearm policies. I control for the demographics, politics, and institutional characteristics of the states and hypothesize that public health concerns lead to the adoption of firearm regulations. I find support for my hypothesis: most novel, state firearm policy diffusion is dependent on state firearm suicide and homicide rates. Furthermore, I find that states are more likely to adopt policy if they are characterized by a large population, a large white population, high firearm ownership, a liberal government, or if their geographical neighbors are actively adopting firearm regulations. Firearm-related fatalities have risen dramatically, but a majority of states have adopted few policies to address this public health concern. My article highlights the state-level factors that produce a public policy response to this phenomenon.
This case study documents the characteristics of a Community Congregate Dining (CCD) for Japanese Canadian (Nikkei) seniors aged 65+ in the Greater Toronto Area and explores participants’ and providers’ experiences. Data were collected through (a) observations of six CCD sites; (b) qualitative interviews with 45 CCD program participants, 1 family member, 15 program providers and volunteers; and (c) analysis of policy and administrative documents about the CCD programs. Our thematic analysis identified social benefits, educational benefits, and the importance of Japanese meals and entertainment that together created a unique atmosphere of ‘Japanese-ness’ at the CCD. While the CCD fosters a sense of belonging and supports healthy aging among Nikkei seniors, the program’s success depends on managing diverse linguistic needs, maintaining opportunities for meaningful interaction, and ensuring transportation access. The findings highlight broader lessons for designing inclusive and culturally responsive social services for increasingly diverse Canadian older adults.
What explains the attitudes of diasporas toward their ancestral homeland? One answer suggests some pull toward the country of origin (“ancestral homeland”) based on a shared cultural identity. In contrast, another explanation looks at how host country (“contemporary homeland”) politics surrounding the “perpetual foreigners” can push the diaspora toward their ancestral homeland. In this paper, we recognize that the link between the diaspora and the ancestral homeland is malleable. Specifically, we focus on the linguistic link—which can vary both spatially and temporally. We argue that when individuals of the diaspora do not speak the ancestral homeland language with their family at home, the primordial ethnic bond is weakened, and thus, they are less positive toward their ancestral homeland. We test our argument by focusing on the ethnic Chinese diaspora globally. Using the Sinophone Borderlands Survey, we identify and test whether those who speak Standard Chinese at home are more pro-China than their coethnics who speak a non-Standard Chinese vernacular. The results highlight that while the ethnic Chinese diaspora is more positive toward China than the non-ethnic Chinese respondents, what matters is whether a, and if so, which, Chinese vernacular is spoken.
Early diagnosis of amyotrophic lateral sclerosis (ALS) is essential for treatment initiation and symptom management, yet it remains challenging due to nonspecific symptoms and the lack of reliable diagnostic biomarkers. Although conventional MRI sequences such as T2* weighted and fluid-attenuated inversion recovery (FLAIR) have shown potential in identifying upper motor neuron abnormalities, their diagnostic utility in ALS is not well established. This study aimed to evaluate the sensitivity and specificity of brain T2* weighted and FLAIR MRI sequences in diagnosing ALS using prospectively collected data and to assess associations with disease severity.
Methods:
Data were analyzed from 20 patients with ALS and 20 healthy controls enrolled at the Edmonton site of the Canadian ALS Neuroimaging Consortium 1 (CALSNIC-1) study. Single-slice 2D axial susceptibility-weighted echo planar imaging (SWEPI) and FLAIR images were independently rated by a blinded neurologist and radiologist for signs of corticospinal tract and motor cortex abnormalities. Sensitivity and specificity were calculated, and linear regression was used to examine associations with ALS Functional Rating Scale-Revised (ALSFRS-R) scores.
Results:
T2* weighted and FLAIR MRI sequences showed high specificity (0.95 and 0.85, respectively) but low sensitivity (both 0.25) for ALS diagnosis. No significant correlation was found between imaging abnormalities and ALSFRS-R scores. Inter-rater reliability was poor (κ = 0.25 for SWEPI; κ = 0.14 for FLAIR).
Conclusion:
While T2* weighted and FLAIR MRI sequences may have some specificity for ALS, our study suggests they are not sufficiently sensitive to be used as reliable diagnostic tools for ALS.
A growing body of work suggests that authoritarian regimes can enhance their external legitimacy by undertaking reform—from democratic or “pseudodemocratic” institutional changes at the domestic level to participation in international efforts to mitigate climate change. Yet the shared theoretical logic underlying this work has received surprisingly little empirical attention. This research contributes by offering findings from an iterative series of original survey experiments conducted over nationally representative samples of US citizens. Study 1 tested the foundational hypothesis—that reforms build external legitimacy—by adopting a simple independent groups design. Studies 2 and 3 subjected that hypothesis to harder tests via conjoint designs, and also evaluated extension hypotheses about when and in what sense “legitimacy” is gained. Across studies, the results consistently demonstrate that reforms (of a variety of types) do generate external legitimacy, offering both positive benefits as well as shielding benefits in keeping with theoretical arguments. The results also provide support for several new and previously undocumented findings concerning the role of reform type, type of legitimacy-derived gain, and the conditions under which such gains are more or less likely to accrue.