Qadhat—a comparative study of ancient and new lime mortar from the Marib province/Yemen

Qadhat is the name for a lime mortar in Southern Arabia. Its usage has a long tradition. This work describes physical and mineralogical properties of ancient, historical and new samples, which seem to have been produced the same way. XRD, thin sections and SEM analyses show the similarity of the material. It consists of aggregates of volcanic material that are rich in volcanic glass and lime as binder. The production process includes several hours of crushing the material, which produces fine-grained splinters of aggregates in the binder matrix and gives the mortar a high stability. A weathering test with sodium sulphate on different samples confirms that the stability of this mortar is the result of the production process.     

Exploring Spatial Relationships between Material Culture and Language in the Upper Sepik and Central New Guinea

ABSTRACT New Guinea is the most linguistically diverse region in the world. Over 1,000 languages are found there. Unsurprisingly, controversy exists concerning the degree to which this diversity has been shaped by migration or interaction. At the centre of this controversy is the putative origin and migration path of Austronesian speakers. The advent of Lapita ceramic ware in Melanesia around 3,000 years ago is seen by some as important evidence for their arrival; nevertheless the validity of using Lapita as a marker for Austronesian populations remains in question. The Upper Sepik is one of New Guinea's most linguistically heterogeneous regions. Because it is not marked by far‐reaching exchange systems the region's language and material culture distributions provide potential for exploring such issues. This paper discusses these in the context of an analysis of important ethnographic collections from the region. It is shown that when material culture is assessed technologically and stylistically it is easier to determine an effect for important variables such as language and distance. Additionally, it is demonstrated that as men and women often have different levels of mobility and sociality, classes of material culture belonging to each may differentially reflect important socio‐historical processes.     

Material Culture and the Magical Power of Dance Objects

ABSTRACT This paper takes up the call by scholars such as Alfred Gell to consider objects of material culture as objects, by examining them in the context of production, circulation and reception. Because they are unadorned and without visual interest, langarol, the hand‐held artefacts used in some New Ireland dance performances, do not lend themselves to modes of analysis that see cultural objects as surrogate texts, the hidden meanings of which can be ‘read’. This very ‘lack’ enables us more readily to discern their significance, which lies in their magical potency and in the performance of their creator, the shaman, in attracting, wielding and revealing his awesome power. The power sought is less power over others and more power to — the ability to realise projects that can elicit effects. If consciousness and body are one, such achievements are to be understood as embodiments of intentionality and agency. It is through the production and wielding of such objects that people make themselves.     

Raw material quality and Oldowan hominin toolstone preferences: evidence from Kanjera South,Kenya

The role of raw material quality in Oldowan technology has not been fully explored. There are numerous studies suggesting Oldowan hominins preferred certain types of stone for artifact manufacture. Previous studies of the artifact assemblage from the early Pliocene Oldowan locality of Kanjera South (South Rachuonyo District, Kenya) show that raw material selection and transport was an important aspect of Late Pliocene hominin adaptations. Yet the exact properties of stones that hominins were selecting remain enigmatic. Two potentially important features of artifact raw material are durability and fracture predictability. We investigate fracture predictability through mechanical tests of stone and investigations of the affect of stone properties on fracture patterns in archaeological collections. We investigate stone durability with actualistic studies of edge attrition combined with further mechanical tests of various lithologies. Oldowan hominins at Kanjera appear to have selected raw materials based on their durability. The ability for a stone to fracture consistently does not appear to be as important in hominin toolstone preference as previously assumed. Hominins that produced the assemblages at Kanjera South appear to have incorporated an extensive understanding of various attributes of raw material in the transport and production of stone artifacts. When combined with previous research on the transport patterns at Kanjera, the results of this study provide evidence for a more complex raw material acquisition strategy than has previously been suggested for Late Pliocene Oldowan hominins.     

16至19世纪前期中日贸易商品结构的变化——以生丝、丝绸贸易为中心

16至19世纪前期的中国对日丝、绸贸易,前后经历了由盛转衰的过程。究其原因,实不能单从输出的中国一方去找,而还应从输入一方的日本去找,其根本原因则在于随着日本蚕丝生产兴起和丝织生产的发展日方对华丝、绸需求的减少。输日华丝的由盛转衰,实质上反映了中日丝绸生产特别是生丝生产能力的前后变化,反映了日本随着生丝生产的发展逐渐减低了对华丝的依赖程度。到19、20世纪之交,中日丝绸生产的格局变化更加清晰地显示出来。     

以图书的有效利用来培养小学生写作能力

把学校的图书室开辟为重要阵地加以利用,并改变写作方向,让小学生们用自己的童心去感受生活,用自己的眼睛去认识生活,用自己的耳朵去倾听生活,用自己的方式去表达生活。惟有如此,他们才能写出富有童情童真、童言童趣的原汁原味的好文章。     

新教材背景下初中数学教学的实施

数学教学的核心是学生的再创造,让学生经历知识的再创造过程,培养了学生的创造性思维。学生从教师的教转向主动地学,在教师的指导下去建构数学知识,为学生能够顺利地用数学知识解决实际问题奠定了良好的知识基础。     

Chiseling away at a concrete legacy: Engaging with Communist-era heritage and memory in Albania

Abstract

Albania spent much of the 20th century under one of Europe’s most ideologically repressive regimes. In order to justify and ostensibly protect this system, the Albanian Communist regime (1944–1992) constructed a massive array of defensive works, which formed a major piece of the Hoxhaist (after Enver Hoxha) aesthetic. Twenty years after the fall of Communism, Albanians have gained the freedom to travel abroad, but have largely avoided addressing the legacy of this difficult past within their own society. Based on the theory that some aspects of traumatic memory can be addressed through confronting and re-signifying material heritage, we explore some localized cases in order to comprehend the roots of this concrete legacy, combining theoretical analysis with field experiences in collaboration with the Gjirokastra Foundation. We suggest one possible approach to the difficult process of creating open community dialogue to deal with the scars of a traumatic past and thus begin the healing process.     

An Assessment of the Status and Condition of Archaeological Remains Preserved In Situ in the Medieval Town of Trondheim Based on Archeochemical Investigations Conducted During the Period 2007–2010

Abstract

In recent years systematic archeochemical investigations in the medieval town of Trondheim have provided the heritage management authorities with a rich and complex set of data concerning the status and condition of the cultural deposits in the anthropogenic material. The collected data raises important questions for the long-time management of in situ preservation for archaeological material in non-saturated zones. In this paper we present the standardized scientific methods used in these archeochemical investiga- tions. We examine the results from several sites in the town and discuss the challenges facing modern heritage management in its efforts to protect a complex body of archaeological material in the non-saturated zone. We show that sediments with a thickness of 1–2 m have low levels of moisture and organic matter, and most of the inorganic parameters analysed are found in oxidized form with low preservations. The 2–3 m thick anthropogenic sediments showed better preservation conditions.     

‘Hold the Heathen Hammer High’: representation,re-enactment and the construction of ‘Pagan’ heritage

Viking Metal, Pagan Metal and their relatives represent subgenres of Black and Folk Metal characterised by their historical and mythological references, their incorporation of folk melodies alongside traditional music and instruments, and the use of contemporary material culture and dress. Like earlier folk-rock traditions, these subgenres have often steered an interesting course between the hedonistic tendencies which can accompany rock music (the ‘rock “n” roll lifestyle’) and an educational role: metal as heritage and specifically as heritage interpretation. In this paper, the authors explore these various connections through conversations with members of two prominent bands (Týr and Heidevolk) who gave research seminars at the University of York in 2012 and 2013. The connections between music making, landscape, performativity and narration are prominent in both cases, and form the basis of this study.