History Research Articles

The genetic consequences of historic climate change on the contemporary population structure of a widespread temperate North American songbird

Studies of widely distributed species can inform our understanding of how past demographic events tied to historic glaciation and ongoing population genetic processes interact to shape contemporaneous patterns of biodiversity at a continental scale. In this study, we used whole-genome resequencing to investigate the current population structure and genetic signatures of past demographic events in the widespread migratory American goldfinch (Spinus tristis). Phylogenetic relationships inferred from whole mitochondrial genomes were poorly resolved. In contrast, a genome-wide panel of > 4.5 million single nucleotide polymorphisms (SNPs) strongly supported the existence of eastern and western populations separated by western mountain ranges and additional population structuring within the western clade. Demographic modeling estimated that the eastern and western populations diverged approximately one million years ago, and both populations experienced subsequent population bottlenecks during the last glacial period. Species distribution models showed a severe contraction of suitable habitat for the American goldfinch during this period, with predicted discontinuities that are consistent with multiple, isolated glacial refugia that coincide with present-day population structure. Low overall genetic differentiation between the eastern and western populations (FST ∼ 0.01) suggests ongoing gene flow accompanied divergence, and individuals with admixed genomic signatures were sampled along a potential contact zone. Nevertheless, outlier SNPs were identified near genes associated with feather color, song, and migratory behavior and provide strong candidates for further study of the mechanisms underlying reproductive isolation and speciation in birds.

Social Democratic Hauntings: On Swedish Dissociation and Melancholia

Abstract Once seen as a Western frontrunner of social progressivism and equality, Sweden has undergone momentous changes since the aggressive neoliberal dismantling of the postwar universal welfare state model started in the 1980s; today it is a stronghold of the European far right and has one of the highest levels of wealth inequality in the world. This essay analyzes the contemporary post–social democratic political landscape in Sweden, arguing that it is characterized by a state of both dissociation and melancholia, interlinked affective responses to the intensifying social pressures and structural crises the country faces. While the Right mobilizes racial melancholia to conjure up the stability of the past, significant segments of the political spectrum—including the Left—have long been demobilized by the stranglehold of a form of tragic optimism produced by a post-1991 fusion between the twentieth-century social democratic construction of Swedish exceptionalism and a neoliberal Fukuyaman triumphalism that disavows history and historical change. The essay traces this crisis of historical consciousness back to the hegemony of the Swedish Social Democratic Party in the twentieth century and the genre of folkhemmet nationalism that underpinned its project and whose affective afterlives continue to inform the political impasses we see today.

Agricultural Productivity and Climate Mitigation

Agriculture will play a central role in meeting greenhouse gas (GHG) emission targets, as the sector currently contributes ∼22% of global emissions. Because emissions are directly tied to resources employed in farm production, such as land, fertilizer, and ruminant animals, the productivity of input use tends to be inversely related to emissions intensity. We review evidence on how productivity gains in agriculture have contributed to historical changes in emissions, how they affect land use emissions both locally and globally, and how investments in research and development (R&D) affect productivity and therefore emissions. The world average agricultural emissions intensity fell by more than half since 1990, with a strong correlation between a region's agricultural productivity growth and reduction in emissions intensity. Additional investment in agricultural R&D offers an opportunity for cost-effective (<US$30 per ton carbon dioxide) and large-scale emissions reductions. Innovations that target specific commodities or inputs could even further reduce the cost of climate mitigation in agriculture.

Фонд Єлисаветградського реального училища в Державному архіві Кіровоградської області: історія, склад та структура

The purpose of the research is to research the history, composition and structure of the fund of the Yelisavetgrad Zemstvo Real School (ESRU) in the State Archive of the Kirovohrad Region, based on the work of its predecessors and the existing source base. The research methodology is based on fundamental general scientific principles (objectivity, comprehensiveness, complexity, historicism, determinism), which is the worldview basis of archival theory, as well as on the use of methods - analysis and synthesis, system analysis, historical method, scientific heuristics method, identification methods and classification of documents. The scientific novelty lies in the fact that for the first time a comprehensive analysis of the composition and structure of the fund of the Yelisavetgrad Real School in the State Archives of the Kirovohrad Region was carried out, which includes cases with documents of various types: with normative and administrative documentation, business correspondence, with minutes of meetings, with reporting documentation, with personal documents, with educational documentation; the historical significance of the Yelisavetgrad Zemstvo real school as an educational institution of regional and national importance is substantiated, and its role in the formation of the educational, social and cultural sphere of the 19th and early 20th centuries is also considered. Conclusions. A study of the history, composition and structure of the "Elysavetgrad Zemstvo Real School" fund in the State Archive of the Kirovohrad Region confirms its significant informational potential. Yelisavetgrad Zemstvo real school, founded in 1870, was one of the largest educational institutions of that time. The fund provides rich opportunities for research in the history of education, administrative practice, as well as social and cultural processes that took place in Ukraine in the context of historical changes of the 19th and 20th centuries. Preservation of the fund in the State Archive of the Kirovohrad region is important for the preservation of the historical heritage of the region. Thirty-four cases in the analyzed fund of the EZRU were classified as particularly valuable, two - as a "unique documentary monument". Thus, the fund of Yelisavetgrad real school in the State Archive of Kirovohrad region is a rich source for research in the field of history of education, social changes and cultural heritage of Ukraine.

Spatial and historical patterns of sedimentary organic matter sources and environmental changes in the Ross Sea, Antarctic: implication from bulk and n-alkane proxies

Organic carbon (OC) burial in the Antarctic marginal seas is essential for regulating global climate, particularly due to its association with ice shelf retreat. Here, we analyzed total OC (TOC), total nitrogen (TN), radiocarbon isotope, n-alkanes and relative indicators in surface and core sediments from the Ross Sea, West Antarctica. Our aim was to investigate spatial and historical changes in OC sources, and to explore the influencing factors and implications for ice shelf retreat since the last glacial maximum (LGM). Our results revealed distinct spatial patterns of OC sources as indicated by n-alkane indicators in surface sediments. In the Western Ross Sea, n-alkanes predominantly originated from phytoplankton and bacteria, as evidenced by their unimodal distribution, low carbon preference index (CPI) of short-chain n-alkanes (CPIL = 1.41 ± 0.30), and low terrestrial/aquatic ratio (TAR = 0.22 ± 0.14). In the Southwest Ross Sea, n-alkanes were derived from marine algae and terrestrial bryophytes, indicated by bimodal distribution, low ratio of low/high molecular-weight n-alkanes (L/H = 0.62 ± 0.21), low CPI of long-chain n-alkanes (CPIH = 1.18 ± 0.16), and high TAR (1.26 ± 0.66). In contrast, the Eastern Ross Sea exhibited n-alkanes that were a combination of phytoplankton and dust from Antarctic soils and/or leaf waxes from mid-latitude higher plant, as suggested by both unimodal and bimodal distributions, high L/H (1.60 ± 0.58) and CPIH (2.04 ± 0.28), and medium TAR (0.61 ± 0.30). Geologically, during the LGM (27.3 – 21.0 ka before present (BP)), there was an increased supply of terrestrial OC (TOC/TN = 13.63 ± 1.29, bimodal distribution of n-alkanes with main carbon peaks at nC17/nC19 and nC27). From 21.0 to 8.2 ka BP, as glaciers retreated and temperatures rose, the proportion of marine n-alkanes significantly increased (TOC/TN = 9.09 ± 1.82, bimodal distribution of n-alkanes with main carbon peaks at nC18/nC19 and nC25). From 8.2 ka BP to the present, as the ice shelf continued to retreat to its current position, the marine contribution became dominant (TOC/TN = 8.18 ± 0.51, unimodal distribution of n-alkanes with main carbon peak at nC17/nC18/nC19, and low TAR (0.41 ± 0.32)). This research has significant implications for understanding the variations in Antarctic OC sources and their climatic impacts in the context of accelerated glacier melting.

Game-based Learning for History: Student Perceptions and Preferences

With the rapid development of games in the 21st century, the panoply of games on history shows a wide variety. Backstories from most historical eras have been implemented in different game genres and modalities. Furthermore, a growing number of studies have pointed to the didactic potential of historical games as learning tools. This study aims at investigating university students' perceptions of gaming and their game preferences, with a particular focus on history. The research question to answer was: "What types of games do history students play, and how can games, in their view, contribute to learning in their subject?" Educational action research was used as the overall strategy in a study where data was collected from five different university course groups in general history at the basic level. Students answered questionnaires with open ended questions about gaming preferences and their perceptions of games. The answers were then analysed in an inductive thematic analysis. Findings show that the students play a mix of analogue board games, digital games and hybrid forms. In the transmedial array of games available, important genres include role playing games, strategy games, quizzes and first-person action games. The students frequently provide arguments for the use of games in history education, and they give reasons why they find a particular game useful for this purpose. They describe how these games have a potential to add value to history education. To some extent, they also discuss how this can be implemented. In conclusion, the authors argue that so-called technology tree games are particularly relevant to learning history from a structural perspective, while RPG:s can strengthen interpretive approaches through a subjective historical experience.

”Un compositeur d’un grand mêrite” i Paris – Laura Netzel och hennes kammarmusik vid ingången till kvinnornas århundrade

An interest in women in Nordic music history and a fascination with Laura Netzel's (1839–1927) chamber music characterises this article. In addition to focusing on works, reception, and context, the article examines the question of what role did gender play in the reception of Netzel's and her women colleagues' chamber music? How is the reviewers' understandings of gender and originality intertwined into their texts in daily newspapers and music magazines? And finally: Do possibilities for a transformation towards a more equal chamber music repertoire and more equal music history books exist? Despite Anna Rogstad's (1854–1938) predictions that the 20th century would become "the women's century," the concert scene, and the chamber music environment in particular, was characterized by gender-related prejudices. Still, Laura Netzel received recognition for her great originality and captivating musicality when she stayed in Paris at the turn of the century. In contrast to her male Nordic colleagues, she received glowing reviews where the works are described as bold and permeated with a Nordic tone. The article focuses on two chamber music works from one of her stays in Paris: Cello Sonata, opus 66 and Piano Trio in D minor, opus 78. In the Sonata for Cello and Piano, we encounter a very expressive and mature, but also bold, forward rushing and adventurous Netzel. The style is late Romantic, but also clearly influenced by contemporary French music and in constant development. The harmonics are exploratory, but never proved too demanding for the audience and critics of the time. The Trio for Violin, Cello and Piano in D minor was premiered in 1903 at La société Musique Nouvelle with Netzel herself at the piano. Enthusiastic Scandinavians in the audience were seated together with several famous music authorities of the French capital. Le Monde musical praised it for being written with such great confidence.

Obiajulu’s Children and the Wicked Sons of Eli (1 Sam 2:11–17)

The two sons of Eli, Hophni and Phinehas (1 Sam 2:11-36), served along with their father as priests at Shiloh in the tabernacle, where the ark of the covenant was housed (11am 1:3). While in service, Eli’s children became sons of worthlessness (bənȇ-bəliyyaʿal), dishonest, wicked and corrupt, as well as refused to know the Lord (lō’ yāḏə‘û ՚eṯ-ʾădōnāi) and his teachings. They were unrighteous, greedy, intimidating, immoral, and abusive to women at the entrance of the temple (vv. 12-22). Eli did little to correct them, leading to God’s punishment. Some scholars have examined this narrative with Western historical models, lacking African stories, cultures, customs, and experiences, where there are similar incidences of children’s misbehaviors and challenges of their upbringing in the African context. Using an African Biblical Hermeneutical approach with illustrative stories from Zain E. Asher’s memoir, “Where the Children Take Us: How One Family Achieved the Unimaginable,” this work contextually examines 1 Sam 2:11-17, within the theological contexts of the Books of Samuel and Deuteronomistic History (Josh–2 Kings). It compares Obiajulu’s disciplined and trained children (Obinze, Chiwetel, Zain, Kandibe) and the obedient boy, Samuel (vv. 18-22), with the consequences of the blasphemies and corruption of Eli’s children (vv. 11-17). It proposes lessons that no matter how we perform our duties in the church, schools and families, sadness may still come if we neglect to train our children responsibly in righteousness, integrity, hard work, and in the fear of the Lord.

Sedimentary antimony stable isotope record of anthropogenic contamination in a karst lake in southwestern China

Anthropogenic sources of antimony (Sb) are an important driver of pollution in the Earth environment, but their roles in the historical changes of Sb pollution in lake ecosystems are currently poorly understood. This study documents the sedimentary Sb deposition fluxes in Hongfeng lake (HFL), in southwestern China during 1958–2021 and quantifies the changes of anthropogenic contributions to sediments using Sb stable isotopes. Mean Sb concentration (mean: 1.89 mg kg−1) and deposition flux (mean: 302.1 ng cm−2 a−1) in lake sediments remained relatively stable from 1958 to 1980. Sb deposition fluxes increased rapidly since 1980, peaked at 990.8 ng cm−2 a−1 in 2000, and then decreased consistently, reaching 306.9 ng cm−2 a−1 in 2021. Generally, the historical changes in Sb isotopes were anticorrelated with Sb deposition fluxes and enrichment factors, suggesting a lower ε123Sb signature in anthropogenic loading sources, and highlight the ability of Sb isotopes to distinguish anthropogenic signatures from natural processes in complex hydrological systems. Using a binary end-member mixing model, the contributions of anthropogenic sources to the accumulated of Sb in the lake sediments were estimated to be 20 % before 1980s and increased approximate 58 % during 2000–2015, then decreased to 24 % in 2021, likely reflecting the changes of degree in regional industrial activities. Our results help to better understand the response of Sb pollutions to anthropogenic activities and would in turn benefit the controls Sb contamination in lake ecosystems.

Prevalence of anemia and related factors among Tabari cohort population: a cross-sectional study

BackgroundAnemia presents a considerable public health challenge, standing as a leading contributor to elevated rates of mortality and morbidity. Therefore, this study aimed to investigate the prevalence of anemia and related factors among Tabari cohort population.MethodsThis study involved a cross-sectional investigation carried out during the enrollment phase of the Tabari cohort. The Tabari cohort is a subset of the larger nationwide cohort study known as the “Prospective Epidemiological Research Studies in IrAN” (PERSIAN) cohort. The collected data included general information, anthropometric measurements, medical history and blood samples. Anemia was defined as a hemoglobin level less than 13 mg/dL for men and less than 12 mg/dL for women. Data were analyzed using SPSS V.16.ResultsOut of the 10,073 participants included in the analysis, 1,352 individuals (13.4%) were diagnosed with anemia. In the multiple regression analysis, the odds of anemia were significantly 2.31 times in females compared to males, 3.69 times in urban residents compared to rural residents, 1.41 times in social economic categories of IV and 1.35 in social economic categories of V compared to social economic categories of I, 1.70 times in drug abuse compared to non-drug abuse, 0.71 times in body mass index (BMI) categories of 25–29.9 kg/m² and 0.70 in BMI ≥ 30 kg/m² compared to BMI < 25, 0.77 times for triglycerides(TG) > 150 compared to below 150, 0.76 times for total cholesterol(TC) > 200 compared to below 200, 0.83 times for high waist-to-hip ratio (WHR) compared to low WHR, 1.33 times in low High-density Lipoprotein (HDL) compared to high HDL, 1.18 times in diabetics (DM) compared to non-DM, and 1.37 times in individuals with coronary heart diseases (CHD) compared to healthy individuals.ConclusionAnemia was a prevalent condition among Tabari cohort population. Several conditions including female gender, urban residence, Social economic level of IV and V, drug abuse, low HDL, high WHR, DM, and CHD conditions were significantly associated with increased odds of anemia. Furthermore, BMI categories of 25–29.9 kg/m² and ≥ 30 kg/m², high TC and high TG were significantly associated with decreased odds of anemia among this population.

Historical change in associations between perceived risk, disapproval, and use of cannabis among young adults ages 19–30, 2011–2022

BackgroundThe current study used U.S. young adult data to examine overall and age group-specific historical trends in (a) mean perceived risk and disapproval of cannabis use, and (b) risk/use and disapproval/use associations. MethodsData were collected from 2011 to 2022 from 16,492 respondents aged 19–30 in the national Monitoring the Future panel study. Trends in mean risk and disapproval overall and by age group (19–22, 23–26, 27–30) were modeled. Models regressing any past 30-day cannabis use on risk and disapproval controlled for sex, race/ethnicity, college education, population density, state cannabis policy, region, and year. Age group differences and historical trends in regression estimates from year-specific models were examined. ResultsFrom 2011 to 2022, overall mean perceived risk decreased from 3.08 (just over moderate) to 2.50 (between slight and moderate); mean disapproval decreased from 2.21 (between disapprove and strongly disapprove) to 1.66 (between don’t disapprove and disapprove). Higher risk and disapproval were independently associated with lower odds of past 30-day cannabis use overall (AORs 0.86 and 0.76, respectively); controlling for sociodemographics and state policy had virtually no impact on association strength. There were no significant age-related association differences. The risk/use association weakened from AOR 0.84 in 2011 to AOR 0.91 in 2022; the disapproval/use association remained stable (AORs 0.753 and 0.749). ConclusionsYoung adults now perceive cannabis as less risky and are less disapproving of using than they were a decade ago. Perceived risk has weakened as a cannabis use risk factor over time; disapproval has remained a stable risk factor.

Morfológiai vizsgálatok Magyarország délnyugati határfolyóin = Morphological Studies on South-Western Border Rivers in Hungary

Nowadays, the preservation and sustainable use of our natural values are increasingly coming to the fore, and this has implications not only for economic and field development but also for ecological aspects. In recent years, attention has shifted towards river morphological studies, which were previously relegated to the background. Understanding long-term changes and assessing the current state is essential to estimate future processes. In this article, we present our morphological studies on the Hungarian–Croatian border sections of the Mura and the Drava rivers. Historical changes were analyzed through a comparative study of historical maps from earlier periods, while the evaluation of the current state was conducted based on a detailed terrain model from a recent survey. GIS evaluation was also compared with sediment transport and flow measurement results. This comparison suggests that the morphological status of the river section under study is consistent with the typical parameters of transport processes.

Decoupling Sources of Anthropogenic Influences on Sediments of the Visovac Lake (Krka National Park, Croatia) Using Multiparametric Approach.

Historical changes of sediment characteristics and levels of inorganic and organic contaminants were studied in dated sediment cores from the Visovac Lake, situated in the Krka National Park, Croatia, to identify the main sources of anthropogenic pressures on this highly protected system. Depth distributions of lithogenic elements showed a steady decrease of terrigenous inputs due to the reduction in agricultural activities in the area, which was particularly pronounced during the 1991-1995 war in Croatia. Vertical and longitudinal distributions of Cd and Zn indicated that they are predominately of anthropogenic origin. The historical profiles of these toxic metals coincide well with the recorded production of metal industry in the upper reach of the Krka River with a sharp decrease reflecting the interruption by the war and slow recovery afterwards. By contrast, the recovery of the tourist industry in Krka NP after the war was accompanied by increasing contamination by elements characteristic of boat and car traffic (Sn, Cu, Pb) as well as oil pollution. The contamination with polycyclic aromatic hydrocarbons and polychlorinated biphenyls was only moderate. Although levels of metallic and organic contamination can be considered relatively low, the observed shift from industrial to tourism-related sources indicated that touristic activities should also be regarded as a possible threat for this vulnerable karst aquatic ecosystem.

Historical Books

Historical Books

Historical Books: Joshua–2 Kings

Historical Books: Joshua–2 Kings

Reconstructing the past environmental conditions of southwestern India using estuarine sediment core

Geological archives can be examined via multiple proxies to uncover significant information about historical environmental changes. In comparison to single proxy approach, the use of multiple proxies can provide better resolution of the paleoenvironmental record. Thus, in the present study, to understand the paleoenvironmental conditions in the Kali coast in southwestern India, sedimentological, geochemical and isotopic (210Pb, 137Cs) proxies were used. The findings demonstrated that, in previous decades, the sedimentation rate varied from 0.5 to 1.0 cm/year under conditions with relatively higher hydrodynamic energy that were more common and fluctuating, allowing for larger sand particle deposition. However, in more recent years, finer particle deposition towards the surface has been observed under conditions with lower and more stable hydrodynamic energy, with a sedimentation rate of 1.87 cm/year. Additionally, the finer fractions displayed a strong correlation with the metal distribution, which was mostly governed by Fe-Mn oxides. Furthermore, it can be revealed that the environment was warm, humid, and marine-like between 1995 and 2000 based on chemical weathering intensity values and Rb/K ratios. A subtle shift to a freshwater habitat with relatively less warm, less humid climate occurred between 2000 and 2020. Therefore, similar research with longer depositional histories coupled with multiple proxies can help predict the future climatic shifts in decadal time scales.

Practitioners’ Experiences of School Readiness in Rural Early Childhood Centres in QwaQwa Free State, South Africa

The analysis of the school preparation experiences of rural early childhood practitioners. Multiple complex issues exist regarding school preparedness in South Africa. Research has found that many South African children are unprepared for formal schooling. Some of the challenges experienced by these young learners were low reading strength, learning setbacks and complications, and sluggish general development. As a result of these issues, young children face long-term repercussions. These include the inability to escape the cycle of poverty, lack of educational support, and poor socioeconomic conditions within their environment. Therefore, it can be argued that teaching within the South African public schooling context is marred with difficulties and unforeseen challenges. It is difficult to imagine how to modify South African infrastructure so all children can reach their full potential. Given that our ancient past is still rife with historical and power changes, the government must consider several factors while developing ways to aid transformation. This study investigated the perspectives of practitioners on school preparedness. At the same time, it investigates the significant learning at the grass-roots level that emerged from participation in a critical paradigm-based participatory action research project. The study is anchored in a philosophical methodology that leverages Practitioners’ idea that early childhood learners are ready for formal school. They do not emphasize play as a pedagogy for learning in preparation for school readiness. This paper is grounded in constructivism, which helps comprehend how school readiness knowledge improves formal education for young students. The author used the qualitative research approach with an interpretive paradigm to explore practitioners’ school readiness experiences. The author developed a semi-structured interview schedule to collect data from six practitioners in the Thabo-Mofutsanyana district in the Free State Province. The findings revealed practitioners lacked appropriate training and support in preparing young learners in ECD centres. Furthermore, practitioners lacked appropriate pedagogical skills to strengthen teaching and learning. The study recommended that practitioners receive ongoing professional teacher development in school readiness and use various teaching and learning strategies such as play pedagogy.

Business Cycle Dynamics in the Romanian Economy: Phases and Developments

Romania's economy is not yet sufficient / complete and competitive connected to the developed European economy and the global one. In recent economic and general political history, the political, institutional and economic changes that have taken place since 1990 in Central and Eastern Europe, including Romania, are already recognized. The article deals with the evolutionary situational stages towards the New Economy of Romania. It also describes the post-transformation horizon for achieving quasi-constant inverted levels between “tangible-intangible” for the transition to a new business cycle in the New Knowledge-Based Economy and Risk. It follows that if GDP reflects the sum of the market value of all goods and services intended for final consumption, not intermediate ones, produced in all branches of the economy within Romania within a year, by way of investigative proximity, business and cycles of manifestation of these were closely followed by dimensional evolutionary trends of similarity and aggregation with GDP. In fact, the New Knowledge-Based Economy has radically and positively changed Romania's advance towards the digitalized society, based more and more on the operationalization of intangible assets. The problem of vision, strategy and development tactics through new business cycles is found in the search for the optimal structural ratio between tangible and intangible assets (knowledge) insurers for competitiveness and sustainability. Keywords: business cycle, Romanian economy, business, entrepreneurship, investment, new knowledge-based economy, tangible assets, intangible assets

Prevalence of malocclusion in primary school with different socioeconomic level in Gharbia Governorate

Abstract Objective Malocclusion is one of the most prevalent dental anomalies; it may negatively affect quality of life of affected children and worsen their social interaction. This study aims to assess the prevalence of child malocclusion in public and private schools in the Gharbia governorate in Egypt across various socioeconomic strata. Patients and methods The target group is primary school students aged 10–12 years old in Tanta city. Careful data about general and dental history was collected then intraoral examination was performed to detect the malocclusion in 10 private school students and 110 public school students. Then, data were collected and analyzed. Results Most high school students presented with different malocclusion situations, 61.5% having class-I malocclusion, 14.9% having class-II malocclusion and finally 23.6% having class-III malocclusion. The proportion of children with anterior cross-bite single and multiple in public schools is 9.3 and 5.33%, respectively, whereas the corresponding rate for kids in private schools is 9.2 and 5.2%. One percent of public school elementary children and 4% are involved in thumb suckling habit, while for mouth breathing habit for public school children, the percentage was 13.3 and 15.6% for private school children. 12.4% of pupils in private schools and 6.7% of children in public schools, respectively, had experienced trauma with a statistically significant difference. Conclusion Malocclusion impacted the majority of the students that were tested, the most common type of malocclusion was class-I crowding in both public and private schools. Mouth breathing is the oral behavior that causes the most dental problems in students. Finally, it is advised to conduct additional research on all malocclusion items.

Marxian critique: from ‘thing-in-itself’ to commodity-form

In grounding critique in the historically situated and concrete, sensuous external object, Marx both preserves and transcends the form of critique present in the work of not only the Young Hegelians, including Proudhon, but the titans of German Idealism—Kant and Hegel. By centering the external object, Marxian critique mediates concrete historical change between the subject and the world of appearance. The aim of this article is to differentiate Marx’s form of critique from his predecessors on the grounds of the external object. This article is broken into two sections, the first being an examination of the thought of Kant, Hegel, and Feuerbach, and each theorist’s relation to the thing-in-itself. This initial section aims to reveal the abstract and ahistorical manner in which ‘bourgeois thought’ engages the external world of appearance. The second section explores the way ‘bourgeois thought’ eradicates motion and mediation in theorizing the external object of bourgeois society—the commodity. The latter section illustrates how the process of reification [Verdinglichung] hypostatizes the categories of bourgeois society into ‘natural’ categories that are then applied to the world of appearance.